2004 Hummer H2 Owner's Manual
2004 Hummer H2 Manual
2004 Hummer H2 manual content summary:
- 2004 Hummer H2 | Owner's Manual - Page 1
2004 HUMMER H2 Owner Manual Seats and Restraint Systems ...1-1 Front Seats ...1-2 Rear Seats ...1-7 Safety Belts ...1-16 Child Restraints ...1-38 Air Bag System ...1-61 Restraint System Check ...1-73 Features and Controls ...2-1 Keys ...2-2 Doors and Locks ...2-7 Windows ...2-14 Theft-Deterrent - 2004 Hummer H2 | Owner's Manual - Page 2
"General Motors of Canada Limited" for HUMMER whenever it appears in this manual. Please keep this manual in your vehicle, so it will be there if you ever need it when you're on the road. If you sell the vehicle, please leave this manual in it so the new owner can use it. Canadian Owners You can - 2004 Hummer H2 | Owner's Manual - Page 3
Safety Warnings and Symbols You will find a number of safety cautions in this book. We use a box and the word CAUTION to tell you about things that could hurt you if you were to ignore the warning. You will also find a - 2004 Hummer H2 | Owner's Manual - Page 4
read other manuals, you might see CAUTION and NOTICE warnings in different colors or in different words. You'll also see warning labels on your vehicle. They use the 1 Features and Controls in Section 2 Instrument Panel Overview in Section 3 Climate Controls in Section 3 Warning Lights, Gages and - 2004 Hummer H2 | Owner's Manual - Page 5
These are some examples of symbols you may find on your vehicle: v - 2004 Hummer H2 | Owner's Manual - Page 6
✍ NOTES vi - 2004 Hummer H2 | Owner's Manual - Page 7
an Air Bag Inflates? ...1-66 Air Bag Off Switch ...1-68 Servicing Your Air Bag-Equipped Vehicle ...1-72 Adding Equipment to Your Air Bag-Equipped Vehicle ...1-73 Restraint System Check ...1-73 Checking Your Restraint Systems ...1-73 Replacing Restraint System Parts After a Crash ...1-74 Front Seats - 2004 Hummer H2 | Owner's Manual - Page 8
on the reclining seatbacks, see Reclining Seatbacks on page 1-5. The power seat controls are located on the outboard edge of the front seats. Your vehicle may have a memory function which allows seat settings to be saved and recalled. See Memory Seat on page 2-51 for more information. 1-2 - 2004 Hummer H2 | Owner's Manual - Page 9
in an area of the lower seatback with this control, located on the outboard sides of the front seat(s). To increase support, press and hold the front of the control. To decrease support, press and hold the rear of the control. Let go of the control when the lower seatback reaches the desired level - 2004 Hummer H2 | Owner's Manual - Page 10
front seats. The buttons used to control this feature are located on the front doors. The engine must be running for the heated seat feature to work. The low setting warms the vertical button with the heated seatback symbol. An indicator light on the seatback button will glow to designate that only - 2004 Hummer H2 | Owner's Manual - Page 11
Reclining Seatbacks Your vehicle's front seatbacks have a recline feature which is described earlier. See Power Seats on page 1-2. {CAUTION: Sitting in a reclined position when your vehicle is in motion can - 2004 Hummer H2 | Owner's Manual - Page 12
click. After the third position (three clicks) is reached, pulling the head restraint farther will release it back to the normal upright position. The rear head restraints can be slid up or down just as the front head restraints, but they do not tilt. Adjust your head restraint so that the top - 2004 Hummer H2 | Owner's Manual - Page 13
Exiting the Third Row Seats To enter or exit the third row seat (if equipped) you must fold the second row seat down following the instructions later in this section. See "Folding the Seatbacks" under 60/40 Split Bench Seat on page 1-8. If you are exiting the third row seat with - 2004 Hummer H2 | Owner's Manual - Page 14
feature, the buttons used to control this feature are do the following: 1. Make sure that nothing is under or in front of the seat. 2. Pull up on the strap loop located at button a third time to turn the feature off. An indicator light will glow for each heat setting when the feature is operating. - 2004 Hummer H2 | Owner's Manual - Page 15
sure the seat is securely in place. 4. Return the head restraints to the upright position. 5. Check to see that the safety belt buckles on the driver's side seat are accessible to the outboard and center occupants and are not under the seat cushions. {CAUTION: If the seatback isn't locked, it could - 2004 Hummer H2 | Owner's Manual - Page 16
press rearward on the seatback to be sure it is locked. Folding the Seatback To fold the seatback, do the following: 1. Pull up on the release lever, labeled 1, located on the rear of the seatback, and push the seatback forward. 1-10 - 2004 Hummer H2 | Owner's Manual - Page 17
passenger position, do the following: 1. Pull up on the release lever labeled 1 and then pull up on the seatback until the seatback locks into the upright position. Tilting the Seat 1. Fold the seatback forward using the instructions listed previously. 2. Unlatch the seat from the floor by pulling - 2004 Hummer H2 | Owner's Manual - Page 18
Returning the Seat to an Upright Position {CAUTION: If the seatback isn't locked, it could move forward in a sudden stop or crash. That could cause injury to the person sitting there. Always press rearward on the seatback to be sure it is locked. To return the seatback to an upright position, do - 2004 Hummer H2 | Owner's Manual - Page 19
5. Pull up on the release lever labeled 1 and then pull up on the seatback until the seatback locks into the upright position. Removing the Seat To remove the seat, do the following: 1. Open the liftgate. 2. Fold the seatback forward onto the seat cushion by using the lever labeled 1. The seat - 2004 Hummer H2 | Owner's Manual - Page 20
3. To unlatch the rear of the seat from the floor, pull up on the release lever labeled 2, at the rear of the seat, and lift the rear of the seat up from the floor. 4. Squeeze the release handle while pulling the seat out. 5. While holding the rear of the seat up, roll the - 2004 Hummer H2 | Owner's Manual - Page 21
injured. Be sure to lock the seat into place properly when installing it. 1. While holding the rear of the seat up, slide the front wheels into the slots on the floor. The front latches should lock into place. If the latches do not lock, try tilting the rear of the seat upwards. 1-15 - 2004 Hummer H2 | Owner's Manual - Page 22
the latches are engaged, let the seat drop into place. Release the lever labeled 1 and pull the seatback up to return it to its upright position. Safety Belts Safety Belts: They Are for Everyone This part of the manual tells you how to use safety belts properly. It also tells you some things you - 2004 Hummer H2 | Owner's Manual - Page 23
equipped with seats and safety belts. Be sure everyone in your vehicle is in a seat and using a safety belt properly. In most states and in all Canadian provinces, the law says to wear does matter...a lot! Your vehicle has a light that comes on as a reminder to buckle up. See Safety Belt Reminder - 2004 Hummer H2 | Owner's Manual - Page 24
Why Safety Belts Work When you ride in or on anything, you go as fast as it goes. Put someone on it. Take the simplest vehicle. Suppose it's just a seat on wheels. 1-18 - 2004 Hummer H2 | Owner's Manual - Page 25
Get it up to speed. Then stop the vehicle. The rider doesn't stop. The person keeps going until stopped by something. In a real vehicle, it could be the windshield... 1-19 - 2004 Hummer H2 | Owner's Manual - Page 26
or the instrument panel... or the safety belts! With safety belts, you slow down as the vehicle does. You get more time to stop. You stop over more distance, and your strongest bones take the forces. That's why safety belts make such good sense. 1-20 - 2004 Hummer H2 | Owner's Manual - Page 27
not instead of them. Every air bag system ever offered for sale has required the use of safety belts. Even if you're in a vehicle that has air bags, you still have to buckle up to get the most protection. That's true not only in frontal collisions, but especially in side and other collisions. 1-21 - 2004 Hummer H2 | Owner's Manual - Page 28
Position This part describes the driver's restraint system. Lap-Shoulder Belt The driver has a lap-shoulder belt. Here is how to wear not long enough, see Safety Belt Extender on page 1-37. Make sure the release button on the buckle is positioned so you would be able to unbuckle the safety belt quickly - 2004 Hummer H2 | Owner's Manual - Page 29
of the belt as you pull up on the shoulder belt. The lap part of the belt should be worn low and snug on the hips, even fatal injuries. The shoulder belt should go over the shoulder and across the chest. These parts of the body are best able to take belt restraining forces. The safety belt locks if - 2004 Hummer H2 | Owner's Manual - Page 30
Q: What's wrong with this? {CAUTION: You can be seriously hurt if your shoulder belt is too loose. In a crash, you would move forward too much, which could increase injury. The shoulder belt should fit against your body. A: The shoulder belt is too loose. It will not give nearly as much protection - 2004 Hummer H2 | Owner's Manual - Page 31
Q: What's wrong with this? {CAUTION: You can be seriously injured if your belt is buckled in the wrong place like this. In a crash, the belt would go up over your abdomen. The belt forces would be there, not at the pelvic bones. This could cause serious internal injuries. Always buckle your belt - 2004 Hummer H2 | Owner's Manual - Page 32
Q: What's wrong with this? {CAUTION: You can be seriously injured if your belt goes over an armrest like this. The belt would be much too high. In a crash, you can slide under the belt. The belt force would then be applied at the abdomen, not at the pelvic bones, and that could cause serious or - 2004 Hummer H2 | Owner's Manual - Page 33
Q: What's wrong with this? {CAUTION: You can be seriously injured if you wear the shoulder belt under your arm. In a crash, your body would move too far forward, which would increase the chance of head and neck injury. Also, the belt would apply too much force to the ribs, which aren't as strong as - 2004 Hummer H2 | Owner's Manual - Page 34
Q: What's wrong with this? {CAUTION: You can be seriously injured by a twisted belt. In a crash, you wouldn't have the full width of the belt to spread impact forces. If a belt is twisted, make it straight so it can work properly, or ask your dealer to fix it. A: The belt is twisted across the - 2004 Hummer H2 | Owner's Manual - Page 35
Safety Belt Use During Pregnancy Safety belts work for everyone, including pregnant women. Like all occupants, they are more likely to be seriously injured if they don't wear - 2004 Hummer H2 | Owner's Manual - Page 36
in the vehicle who are wearing safety belts. Right Front Passenger Position To learn how to wear the right front passenger's safety belt properly, see Driver Position on page 1-22. The right front passenger's safety belt works the same way as the driver's safety belt - except for one thing. If you - 2004 Hummer H2 | Owner's Manual - Page 37
go back all the way and start again. If the belt is not long enough, see Safety Belt Extender on page 1-37. Make sure the release button on the buckle is positioned so you would be able to unbuckle the safety belt quickly if you ever had to. 1. Pick up the - 2004 Hummer H2 | Owner's Manual - Page 38
force at your abdomen. This could cause serious or even fatal injuries. The shoulder belt should go over the shoulder and across the chest. These parts of the body are best able to take belt restraining forces. The safety belt locks if there is a sudden stop or a crash. The safety belt - 2004 Hummer H2 | Owner's Manual - Page 39
{CAUTION: You can be seriously hurt if your shoulder belt is too loose. In a crash, you would move forward too much, which could increase injury. The shoulder belt should fit against your body. To unlatch the belt, just push the button on the buckle. 1-33 - 2004 Hummer H2 | Owner's Manual - Page 40
and booster seats and for smaller adults, the comfort guides may be installed on the shoulder belts. Here is how to install a comfort guide and use the safety belt: Second Row Seat 1. For the second row, remove the guide from its storage clip on the trim panel near the side of the seatback. 1-34 - 2004 Hummer H2 | Owner's Manual - Page 41
2. Place the guide over the belt and insert the two edges of the belt into the slots of the guide. Third Row Seat For the third row, remove the guide from its storage clip on the side of the seatback. 1-35 - 2004 Hummer H2 | Owner's Manual - Page 42
3. Be sure that the belt is not twisted and it lies flat. The guide must be on top of the belt. Second Row Seat 1-36 - 2004 Hummer H2 | Owner's Manual - Page 43
guide onto its storage clip on the side of the seatback. Make sure you remove the comfort guide from the belt before you fold a rear seat down. Safety Belt Extender If the vehicle's safety belt will fasten around you, you should use . Don't let someone else use it, and use it only for the seat - 2004 Hummer H2 | Owner's Manual - Page 44
who are not buckled up can strike other people who are buckled up, or can be thrown out of the vehicle. Older children need to use safety belts properly. Older children who have outgrown booster seats should wear the vehicle's safety belts. 1-38 - 2004 Hummer H2 | Owner's Manual - Page 45
crash, the two children can be crushed together and seriously injured. A belt must be used by only one person at a time. Q: A: What if a child is wearing a toward the center of the vehicle. Also, see Rear Safety Belt Comfort Guides for Children and Small Adults on page 1-34. If the child is - 2004 Hummer H2 | Owner's Manual - Page 46
the age and size of the traveler changes the need, for everyone, to use safety restraints. In fact, the law in every state in the United they need to use a child restraint. {CAUTION: Never do this. Here a child is sitting in a seat that has a lap-shoulder belt, but the shoulder part is behind the - 2004 Hummer H2 | Owner's Manual - Page 47
{CAUTION: People should never hold a baby in their arms while riding in a vehicle. A baby doesn't weigh much -- until a crash. During a crash a baby will become so heavy it is not possible to hold it. For example, in a crash at only 25 mph (40 km/h), a 12-lb. (5.5 kg) baby will suddenly become a 240 - 2004 Hummer H2 | Owner's Manual - Page 48
to, any air bag when it inflates can be seriously injured or killed. Air bags plus lap-shoulder the vehicle's safety belt system nor its air bag system is designed for them. Young children child restraints, which are purchased by the vehicle's owner, are available in four basic types. Selection of - 2004 Hummer H2 | Owner's Manual - Page 49
it is designed to be used in a motor vehicle. If it is, the restraint will have a label saying that it meets federal motor vehicle safety standards. The restraint manufacturer's instructions that come with the restraint state the weight and height limitations for a particular child restraint. In - 2004 Hummer H2 | Owner's Manual - Page 50
Child Restraint Systems An infant car bed (A), a special bed made for use in a motor vehicle, is an infant restraint system designed to restrain or position a child on a continuous flat surface. Make sure that the infant's head rests toward the - 2004 Hummer H2 | Owner's Manual - Page 51
A forward-facing child seat (C-E) provides restraint for the child's body with the harness and also sometimes with surfaces such as T-shaped or shelf-like shields. A booster seat (F-G) is a child restraint designed to improve the fit of the vehicle's safety belt system. Some booster seats have a - 2004 Hummer H2 | Owner's Manual - Page 52
-like shield that swings up or to the side. When choosing a child restraint, be sure the child restraint is designed to be used in a vehicle. If it is, it will have a label saying that it meets federal motor vehicle safety standards. Then follow the instructions for the restraint. You may find these - 2004 Hummer H2 | Owner's Manual - Page 53
-facing child restraint would be very close to the inflating air bag. Be sure to turn off the air bag before using a rear-facing child restraint in the right front seat position. Even though the air bag off switch is designed to turn off the passenger's air bag, no system is fail safe, and no one can - 2004 Hummer H2 | Owner's Manual - Page 54
sure to read and follow the instructions for your child restraint. If yours requires that the top strap be anchored, don't use the restraint unless it is one of the following anchor points. Be sure to use an anchor point located on the same side of the vehicle as the seating position where the child - 2004 Hummer H2 | Owner's Manual - Page 55
itself. Tighten the top strap when and as the child restraint manufacturer's instructions say. A child restraint with a top strap should only be used in the second or third row. Don't use a child restraint with a top strap in the front seat because there's no place to anchor the top strap. An - 2004 Hummer H2 | Owner's Manual - Page 56
system. You will find anchors (A) in the center and right side passenger second row seating positions. This system, designed to make installation of child restraints easier, does not use the vehicle's safety belts. Instead, it uses vehicle anchors (A, B) and child restraint attachements to secure the - 2004 Hummer H2 | Owner's Manual - Page 57
In order to use the LATCH system in your vehicle, you need a child restraint designed for that system. 1-51 - 2004 Hummer H2 | Owner's Manual - Page 58
could be seriously injured or killed. Make sure that a LATCH-type child restraint is properly installed using the anchorage points, or use the vehicle's safety belts to secure the restraint, following the instructions that came with that restraint, and also the instructions in this manual. 1-52 - 2004 Hummer H2 | Owner's Manual - Page 59
a Rear Seat Position If your child restraint does not have the LATCH system, you will be using the lap-shoulder belt to secure the child restraint in this position. Be sure to follow the instructions that came with the child restraint. Secure the child in the child restraint when and as the - 2004 Hummer H2 | Owner's Manual - Page 60
3. Buckle the belt. Make sure the release button is positioned so you would be able to unbuckle the safety belt quickly if you ever had to. 4. Pull the rest of the shoulder belt all the way out of the retractor to set the lock. 1-54 - 2004 Hummer H2 | Owner's Manual - Page 61
an adult or larger child passenger. Securing a Child Restraint in the Right Front Seat Position 5. To tighten the belt, feed the shoulder belt back into on the child restraint. If you are using a forward-facing child restraint, you may find it helpful to use your knee to push down on the child - 2004 Hummer H2 | Owner's Manual - Page 62
has one. Your vehicle has a right front passenger air bag. There is a switch on the instrument panel that you can use to turn off the right front passenger's air bag when you need to secure a child restraint at the right front passenger's position. See Air Bag Off Switch on page 1-68 for more on - 2004 Hummer H2 | Owner's Manual - Page 63
-facing child restraint would be very close to the inflating air bag. Be sure to turn off the air bag before using a rear-facing child restraint in the right front seat position. Even though the air bag off switch is designed to turn off the passenger's air bag, no system is fail safe, and no one can - 2004 Hummer H2 | Owner's Manual - Page 64
't secure a rear-facing child restraint in the right front seat ) until you have your vehicle serviced. See "Air Bag Off Switch." You will be using a lap-shoulder belt to secure the child restraint in this position. Be sure to follow the instructions that came with the child restraint. Secure the - 2004 Hummer H2 | Owner's Manual - Page 65
4. Buckle the belt. Make sure the release button is positioned so you would be able to unbuckle the safety belt quickly if you ever had to. 5. Pull the rest of the shoulder belt all the way out of the retractor to set the lock. 1-59 - 2004 Hummer H2 | Owner's Manual - Page 66
and be ready to work for an adult or larger child passenger. If you had turned the air bag off with the switch, remember to be sure to use the air bag off switch to turn on the right front passenger's air bag when you remove the child restraint from the vehicle unless the person who will be sitting - 2004 Hummer H2 | Owner's Manual - Page 67
Air Bag System This part explains the air bag system. Your vehicle has air bags - one air bag for the driver and another air bag for the right front passenger. Frontal air bags are designed to help reduce the risk of injury from the force of an inflating air bag. But these air bags must inflate very - 2004 Hummer H2 | Owner's Manual - Page 68
wear your safety belt, even with air bags. The driver should sit as far back as possible while still maintaining control of the vehicle. {CAUTION: Anyone who is up against, or very close to, any air bag when it inflates can be seriously injured or killed. Air bags plus lap-shoulder belts offer the - 2004 Hummer H2 | Owner's Manual - Page 69
the air bag symbol. Where Are the Air Bags? The system checks the air bag electrical system for malfunctions. The light tells you if there is an electrical problem. See Air Bag Readiness Light on page 3-28 for more information. The driver's air bag is in the middle of the steering wheel. 1-63 - 2004 Hummer H2 | Owner's Manual - Page 70
path of an inflating air bag must be kept clear. Don't put anything between an occupant and an air bag, and don't attach or put anything on the steering wheel hub or on or near any other air bag covering. The right front passenger's air bag is in the instrument panel on the passenger's side. 1-64 - 2004 Hummer H2 | Owner's Manual - Page 71
sensing system triggers a release of gas from the inflator, which inflates the air bag. The inflator, air bag, and related hardware are all part of the air bag modules inside the steering wheel and in the instrument panel in front of the right front passenger. How Does an Air Bag Restrain? In moderate - 2004 Hummer H2 | Owner's Manual - Page 72
inflated. Some components of the air bag module - the steering wheel hub for the driver's air bag, or the instrument panel for the right front passenger's bag - will be hot for a short time. The parts of the bag that come into contact with you may be warm, but not too hot to touch. There will be some - 2004 Hummer H2 | Owner's Manual - Page 73
for service. Notice: If you damage the covering for the driver's or the right front passenger's air bag, the bag may not work properly. You may have to replace the air bag module in the steering wheel or both the air bag module and the instrument panel for the right front passenger's air bag. Do - 2004 Hummer H2 | Owner's Manual - Page 74
Air Bag Off Switch Your vehicle has a switch on the instrument panel that you can use to turn off the right front passenger's air bag. Canada United States 1-68 - 2004 Hummer H2 | Owner's Manual - Page 75
which, according to the infant's physician, makes it necessary for the infant to ride in the front seat so that the driver can constantly monitor the child's condition. {CAUTION: If the right front passenger's air bag is turned off for a person who isn't in a risk group identified by the national - 2004 Hummer H2 | Owner's Manual - Page 76
To turn off the right front passenger's air bag, insert your ignition key into the switch, push in, and move the switch to the off position. The air bag off light will come on to let you know that the right front passenger's air bag is off. The right front passenger's air bag will remain off until - 2004 Hummer H2 | Owner's Manual - Page 77
{CAUTION: If the air bag readiness light ever comes on when you have turned off the air bag, it means that something may be wrong with the air bag system. The right front passenger's air bag could inflate even though the switch is off. If this ever happens, don't let anyone whom the national - 2004 Hummer H2 | Owner's Manual - Page 78
the service manual have information about servicing your vehicle and the air bag system. To purchase a service manual, see Service Publications Ordering Information on page 7-11. {CAUTION: Canada To turn the right front passenger's air bag on again, insert your ignition key into the switch, push - 2004 Hummer H2 | Owner's Manual - Page 79
, and have them repaired or replaced. (The air bag system does not need regular maintenance.) Q: Is there anything I might add to the front of the vehicle that could keep the air bags from working properly? A: Yes. If you add things that change your vehicle's frame, bumper system, front end sheet - 2004 Hummer H2 | Owner's Manual - Page 80
, safety belt or seat parts repaired or replaced. New parts and repairs may be necessary even if the belt or LATCH system wasn't being used at the time of the collision. If an air bag inflates, you'll need to replace air bag system parts. See the part on the air bag system earlier in this section - 2004 Hummer H2 | Owner's Manual - Page 81
Mirrors ...2-34 Automatic Dimming Rearview Mirror with Compass and Temperature Display ...2-34 Outside Power Mirrors ...2-37 Outside Convex Mirror ...2-38 Outside Heated Mirrors ...2-39 Outside Automatic Dimming Mirror with Curb View Transmission Operation ...2-22 All-Wheel Drive ...2-25 Parking Brake - 2004 Hummer H2 | Owner's Manual - Page 82
{CAUTION: Leaving children in a vehicle with the ignition key is dangerous for many reasons. They could operate the power windows or other controls or even make the vehicle move. The children or others could be badly injured or even killed. Do not leave the keys in a vehicle with children. 2-2 - 2004 Hummer H2 | Owner's Manual - Page 83
Your vehicle has one double-sided key for the ignition and all door locks. Remote Keyless Entry System Your keyless entry system operates on a radio frequency subject to Federal Communications Commission (FCC) Rules and with Industry Canada. This device complies with Part 15 of the FCC Rules. - 2004 Hummer H2 | Owner's Manual - Page 84
feet (1 m) up to 100 feet (30 m) away using the remote keyless entry transmitter supplied with your vehicle. • Press this button once to unlock the driver's door. The interior lamps will come on. Pressing unlock again still having trouble, see your dealer or a qualified technician for service. You - 2004 Hummer H2 | Owner's Manual - Page 85
you have to get close to your vehicle before the transmitter works, it's probably time to change the battery. Notice: When replacing the battery, use care not to touch any of the circuitry. Static from your body transferred to these surfaces may damage the transmitter. L (Panic): Press this button - 2004 Hummer H2 | Owner's Manual - Page 86
Resynchronization Resynchronization may be necessary due to the security method used by this system. The transmitter does not send the same see your dealer for service. 1. Insert a thin object, such as a coin, in the slot between the covers of the transmitter housing near the key ring hole. Remove - 2004 Hummer H2 | Owner's Manual - Page 87
are several ways to lock and unlock your vehicle. To unlock the door from the outside, use the keyless entry system or the key. To unlock or lock the door from the inside, slide the manual lever forward or rearward. {CAUTION: Unlocked doors can be dangerous. • Passengers - especially children - can - 2004 Hummer H2 | Owner's Manual - Page 88
Locks The power door lock switches are located on the driver's and front passenger's armrests. Cargo Area Door Lock Switch Your vehicle may have a power lock switch in the cargo area on the passenger side of the liftgate opening trim. Q (Lock): Remove the ignition key and press the lock symbol - 2004 Hummer H2 | Owner's Manual - Page 89
the following: 1. Press and hold the power door lock switch in the lock position. 2. Press unlock twice on the remote keyless entry transmitter. This feature will not operate if the key is in the ignition. You can also program this feature using the DIC. See "Delayed Locking" under DIC Operation and - 2004 Hummer H2 | Owner's Manual - Page 90
, with the key in LOCK, release the turn signal/multifunction lever. Once you do this, the doors will lock and unlock, the horn will chirp twice, and a 30-second timer will begin. You are now ready to program the automatic door lock feature. 3. Press the lock side of the power lock switch once. You - 2004 Hummer H2 | Owner's Manual - Page 91
instructions key in LOCK, release the turn signal/multifunction lever. Once you do this, the doors will lock and unlock, the horn will chirp twice, and a 30-second timer will begin. You are now ready to program the automatic door unlock feature. 3. Press the unlock side of the power lock switch - 2004 Hummer H2 | Owner's Manual - Page 92
: 1. Open one of the rear doors. 2. Turn the lock counterclockwise with your ignition key to engage the rear door security lock. The rear doors or your vehicle cannot be opened from the inside when this feature is in use. If you want to open the rear door while the security lock is - 2004 Hummer H2 | Owner's Manual - Page 93
liftgate, press the lock button on any of the power door lock switches or the remote keyless entry transmitter. {CAUTION: It can be dangerous select the control setting that will force outside air into your vehicle. See Automatic Climate Control System on page 3-19. • If you have air outlets on - 2004 Hummer H2 | Owner's Manual - Page 94
suffer permanent injuries or even death from heat stroke. Never leave a child, a helpless adult, or a pet alone in a vehicle, especially with the windows closed in warm or hot weather. 2-14 - 2004 Hummer H2 | Owner's Manual - Page 95
windows from their switches. A light in the lockout switch will come on to show that the switch has been activated. Press the lockout switch again to return to normal operation. The controls for the power windows are located on the armrest on each of the side doors. The switches operate the windows - 2004 Hummer H2 | Owner's Manual - Page 96
front and side windows. With this system, the security light Mirrors Pull the sunvisor down and lift the mirror cover to turn on the lamps. This light reminds you to activate the theft-deterrent system. Here's how to do it: 1. Open the door. 2. Lock the door with the power door lock switch Driver - 2004 Hummer H2 | Owner's Manual - Page 97
a key or use the manual door lock. It activates only if you use a power door lock switch with serviced by your dealer. • If you don't want to activate the theft-deterrent system, the vehicle should be locked with the door key after the doors are closed. • Always unlock a door with a key, or use - 2004 Hummer H2 | Owner's Manual - Page 98
flashing before trying to restart the engine. Remember to release the key from START as soon as the engine starts. If the engine does not start after three tries, the vehicle needs service. If the engine is running and the security light comes on, you will be able to restart the engine if you - 2004 Hummer H2 | Owner's Manual - Page 99
is it all the way in? Turn the key only with your hand. Using a tool to force it could break the key or the ignition switch. If none of these works, then your vehicle needs service. B (ACCESSORY): This position allows you to use things like the radio, power windows and the windshield wipers when the - 2004 Hummer H2 | Owner's Manual - Page 100
you're already moving, use NEUTRAL (N) only. Notice: Do not warm. Notice: Holding your key in START for longer than 15 seconds at a time will cause your battery to be drained much sooner. And the excessive heat can damage your starter motor you add electrical parts or accessories, you could - 2004 Hummer H2 | Owner's Manual - Page 101
coolant heater can help. You'll get easier starting and better fuel economy during engine warm-up. Usually, the coolant heater should be plugged in a minimum of four hours prior to starting your vehicle. At temperatures above 32°F (0°C), use of the coolant heater is not required. 3. Plug it into - 2004 Hummer H2 | Owner's Manual - Page 102
is equipped with an automatic transmission and features an electronic shift position indicator located within the instrument panel cluster. There are several different positions for your shift lever. PARK (P): This position locks your drive wheels. It's the best position to use when you start your - 2004 Hummer H2 | Owner's Manual - Page 103
of snow, ice or sand without damaging your transmission, see If You Are Stuck: In Sand, Mud, Ice or Snow on page 4-56. NEUTRAL (N): In this position, your engine doesn't connect with the drive wheels. To restart when you're already moving, use NEUTRAL (N) only. {CAUTION: Shifting into a drive gear - 2004 Hummer H2 | Owner's Manual - Page 104
(D) can be used when towing a trailer, carrying a heavy load, driving on steep fuel economy. You can use SECOND (2) on hills. It can help control your speed as you go down steep mountain roads, but then you would also want to use your brakes off and on. If you manually select SECOND (2), the transmission - 2004 Hummer H2 | Owner's Manual - Page 105
are located to the right of the instrument panel cluster. Use these switches to shift into and out of the different all-wheel drive modes. You can use this feature to assist when towing or hauling a heavy load. See "Tow/Haul Mode" under Towing a Trailer on page 4-75 for more information. You can - 2004 Hummer H2 | Owner's Manual - Page 106
extra torque to all four wheels and is used for extreme off-road conditions. You might choose 4LO Lock service. See "Service 4WD message" under Driver Information Center (DIC) on page 3-44. {CAUTION: Shifting the transfer case to NEUTRAL can cause your vehicle to roll even if the transmission - 2004 Hummer H2 | Owner's Manual - Page 107
is to have your vehicle moving 1 to 2 mph (1.6 to 3.2 km/h). Press and release the 4HI or 4HI Lock button. You must wait for the 4HI or 4HI Lock indicator light to stop flashing and remain illuminated before shifting your transmission into gear. It is typical for your vehicle to exhibit significant - 2004 Hummer H2 | Owner's Manual - Page 108
to the transfer case. Always wait until the indicator lights stops flashing before putting the transmission back in gear. 8. Turn the ignition to LOCK. 9. Place the transmission shift lever in PARK (P). 10. Release the parking brake prior to towing. Shifting Out of NEUTRAL To shift the transfer - 2004 Hummer H2 | Owner's Manual - Page 109
go off. Notice: Driving with the parking brake on can overheat the brake system and cause premature wear or damage to brake system parts. Verify that the parking brake is fully released and the brake warning light is off before driving. If you are towing a trailer and are parking on any hill, see - 2004 Hummer H2 | Owner's Manual - Page 110
others could be injured. To be sure your vehicle will not move, even when you are on fairly level ground, use the steps that follow. If you are pulling a trailer, see Towing a Trailer on page 4-75. 1. Hold the brake pedal down with your right foot and set the parking brake. 2. Move the - 2004 Hummer H2 | Owner's Manual - Page 111
from PARK (P) without first pulling it toward you. If you can, it means that the shift lever wasn't fully locked into PARK (P). 4. Turn the ignition key to LOCK. 5. Remove the key and take it with you. If you can leave your vehicle with the ignition - 2004 Hummer H2 | Owner's Manual - Page 112
you leave the driver's seat. To before you release the parking control system. You have to fully apply your regular brakes before you can shift from PARK (P) when the ignition is in RUN. See Automatic Transmission Operation on page 2-22. {CAUTION: Things that can burn could touch hot exhaust parts - 2004 Hummer H2 | Owner's Manual - Page 113
when driving over high points on the road or over road debris. • Repairs were not done correctly. • Your vehicle or exhaust system had been modified the windows down to blow out any CO; and • Have your vehicle fixed immediately. {CAUTION: Idling the engine with the climate control system off could - 2004 Hummer H2 | Owner's Manual - Page 114
are pulling a trailer, see Towing a Trailer on page 4-75. Mirrors Automatic Dimming Rearview Mirror with Compass and Temperature Display The automatic dimming mirror will automatically dim to the proper level to minimize glare from lights behind you after dark. The mirror also includes a display in - 2004 Hummer H2 | Owner's Manual - Page 115
and off. To alternate the temperature reading Press and release the TEMP antenna mount, magnetic note pad holder or a similar magnetic item. Automatic Dimming Mirror Operation Press and hold the TEMP button for about eight seconds to turn the automatic dimming feature on or off. The indicator light - 2004 Hummer H2 | Owner's Manual - Page 116
Press and hold the COMP button for five seconds until a zone number appears in the display. 3. Press the COMP button on the bottom of the mirror until the new zone number appears in the display. After you stop pressing the button, the display will show a compass direction within a few seconds. 2-36 - 2004 Hummer H2 | Owner's Manual - Page 117
Power Mirrors The controls are located on the driver's door armrest. Power Folding Mirrors To fold or unfold the mirrors, move the selector switch, located above the mirror control, to the middle position. The mirror control will illuminate. Press the right or left side of the mirror control to - 2004 Hummer H2 | Owner's Manual - Page 118
You will need to reset the power folding mirrors if: Outside Convex Mirror Your passenger's side mirror is convex. A convex mirror's surface is curved so you can see more from the driver's seat. • They are accidently manually folded/unfolded. • The mirrors will not stay in the unfolded position - 2004 Hummer H2 | Owner's Manual - Page 119
position when the vehicle is in REVERSE (R). This feature may be useful in allowing you to view the curb when you are parallel parking. Press this button to warm the heated driver's and passenger's outside rearview mirrors to help clear them of ice, snow and condensation. If your vehicle - 2004 Hummer H2 | Owner's Manual - Page 120
This feature can be enabled/disabled through the Driver Information Center. See Driver Information Center (DIC) on page 3-44 for more information. Calling and OnStar® Virtual Advisor use. Terms and conditions of the Subscription Service Agreement can be found at www.onstar.com. OnStar® System - 2004 Hummer H2 | Owner's Manual - Page 121
and reply to your e-mail through your vehicle's speakers. See the OnStar® user's guide for more information. OnStar® Steering Wheel Controls g: If your vehicle is equipped with the steering wheel control buttons you can use them to interact with the OnStar® system. OnStar® Personal Calling As an - 2004 Hummer H2 | Owner's Manual - Page 122
two conditions: (1) this device may not cause interference, and (2) this device must accept any interference, including interference that may cause undesired operation of the device. Changes and modifications to this system by other than an authorized service facility could void authorization to use - 2004 Hummer H2 | Owner's Manual - Page 123
for quicker and more accurate transmission of the radio frequency. Your vehicle's engine should be turned off while programming the transmitter. Follow these steps to program up to three channels: 1. Press and hold down the two outside buttons, releasing only when the indicator light begins to flash - 2004 Hummer H2 | Owner's Manual - Page 124
where the hanging antenna wire is attached to the motor-head unit. 7. Firmly press and release the "Learn" or "Smart" button. The name and color of the button Programming Canadian radio-frequency laws require transmitter signals to "time out" or quit after several seconds of transmission. This may - 2004 Hummer H2 | Owner's Manual - Page 125
open. Reprogramming a Single HomeLink® Button To program a device to HomeLink® using a HomeLink® button previously trained, follow these steps: 1. Press and hold the desired HomeLink® button. Do not release the button. 2. The indicator light will begin to flash after 20 seconds. While still holding - 2004 Hummer H2 | Owner's Manual - Page 126
sides of the vehicle may damage your vehicle. Load cargo only on top of the crossrails and tie the cargo down to the crossrail support cargo tie-down loops, making sure to fasten it securely. Don't exceed the maximum vehicle capacity transmitter buttons and the sunroof switch (if equipped). 2-46 - 2004 Hummer H2 | Owner's Manual - Page 127
the roof of your vehicle. Be sure you do not cover the roof marker lamps or the Center-High-Mounted Stoplamp (CHMSL) (If equipped) with the desired position, being sure to align the lines in the side rails with the arrows on the crossrail supports. 3. Tighten the lock knobs and then try to move the - 2004 Hummer H2 | Owner's Manual - Page 128
loading cargo too close to the OnStar antenna which will cause the OnStar and accessories are on your vehicle. See Cleaning the Outside of Your Vehicle on page 5-95 for more information. 1. Use the included key to unlock the crossrail end cap by turning it counterclockwise. If you ever loose a key - 2004 Hummer H2 | Owner's Manual - Page 129
into the crossrail channel and secure it as the accessory instructions direct. 5. Place the crossrail endcap back on and lock it with the key. You will not be using the rub strip when using crossrail accessories. When you remove any crossrail accessory, be sure to reinstall the rub strip. To do - 2004 Hummer H2 | Owner's Manual - Page 130
RAP needs to be active. See "Retained Accessory Power" under Ignition Positions on page 2-19. The switch used to operate the sunroof is located in the the rear side of the switch until the sunroof opens completely. • Closed: To close the sunroof, press and hold the front of the switch until the - 2004 Hummer H2 | Owner's Manual - Page 131
sunroof, it must be manually pulled closed after closing the sunroof. These buttons are used to program and recall memory settings for the driver's seat, both the driver's and passenger's outside mirror, the radio station presets, and the previously used climate control system settings. The settings - 2004 Hummer H2 | Owner's Manual - Page 132
the remote keyless entry transmitter to enter your vehicle, the preset driver's seat, mirror positions, radio station presets and the previously used climate control system settings will be recalled if programmed to do so through the Driver Information Center (DIC). See DIC Operation and Displays on - 2004 Hummer H2 | Owner's Manual - Page 133
Seat): This button is used to program and recall the desired driver's seat position when exiting/entering the vehicle. The seat position, can be personalized for both driver 1 and driver 2. To store the seat exit position for driver 1 or 2, do the following: 1. Press and release the 1 or 2 button - 2004 Hummer H2 | Owner's Manual - Page 134
✍ NOTES 2-54 - 2004 Hummer H2 | Owner's Manual - Page 135
41 Security Light ...3-42 Cruise Control Light ...3-42 Tow/Haul Mode Light ...3-42 Fuel Gage ...3-43 Low Fuel Warning Light ...3-43 Driver Information Center (DIC) ...3-44 DIC Operation and Displays ...3-44 DIC Warnings and Messages ...3-56 Audio System(s) ...3-62 Setting the Time ...3-62 Radio with - 2004 Hummer H2 | Owner's Manual - Page 136
Instrument Panel Overview 3-2 - 2004 Hummer H2 | Owner's Manual - Page 137
. See Locking Rear Axle on page 4-11 and All-Wheel Drive on page 2-25. F. Audio System. See Audio System(s) on page 3-62. G. Air Bag Switch. See Air Bag Off Switch on page 1-68. H. Glove Box. See Glove Box on page 2-45. I. Rear Wiper/Washer Control. See "Rear Window Washer/Wiper" under Turn Signal - 2004 Hummer H2 | Owner's Manual - Page 138
flashers work no matter what position your key is in, and even if the key isn't in. To turn off the flashers, press the button until the first click and release. Your hazard warning flashers let you warn others. They also let police know you have a problem. Your front and rear turn signal lamps will - 2004 Hummer H2 | Owner's Manual - Page 139
legs more room when you enter and exit the vehicle. The tilt lever is located on the driver's side of the steering column under the turn signal lever. To tilt the wheel, hold the steering wheel and pull the lever. Move the steering wheel to a comfortable level, then release the lever to lock the - 2004 Hummer H2 | Owner's Manual - Page 140
by itself when you release it. The lever on the left side of the steering column includes the following: Turn and Lane Change Signals Headlamp High/Low-Beam Changer Flash-to-Pass Windshield Wipers Windshield Washer Cruise Control drivers won't see your turn signal. 3-6 - 2004 Hummer H2 | Owner's Manual - Page 141
on page 5-102. When the high beams are on, this indicator light on the instrument panel cluster will also be on. Turn Signal On driver in front of you that you want to pass. It works even if your headlamps are in the automatic position. To use it, pull the turn signal lever toward you, then release - 2004 Hummer H2 | Owner's Manual - Page 142
control the windshield wipers by turning the band with the wiper symbol on it. Be sure to clear ice and snow from the wiper blades before using wipes. This can be very useful in light rain or snow. Turn the band weather, do not use your washer until the windshield is warmed. Otherwise the washer - 2004 Hummer H2 | Owner's Manual - Page 143
knob is located on the instrument panel to the left of the steering wheel. Cruise Control 9(Off): This position turns the system off. To turn the rear the window, press the knob with this symbol. The rear window washer uses the same fluid bottle as the windshield washer. However, the rear window - 2004 Hummer H2 | Owner's Manual - Page 144
wheel spinning, and you could lose control. Do not use cruise control on slippery roads. {CAUTION: If you leave your cruise control on when you are not using and even lose control. Keep the cruise control switch off until you want to use cruise control. 1. Move the cruise control switch to on. 2. - 2004 Hummer H2 | Owner's Manual - Page 145
panel will illuminate when the cruise control is engaged. Increasing Speed While Using Cruise Control There are two ways to go to a higher speed: • Use the accelerator pedal to get to the higher speed. Press the set button at the end of the lever, then release the button and the accelerator pedal - 2004 Hummer H2 | Owner's Manual - Page 146
, move the cruise control switch to off, or shift the transmission to NEUTRAL (N). If road conditions cause the traction control system to activate, cruise control will turn off. longer, cruise control will turn off. Passing Another Vehicle While Using Cruise Control Use the accelerator pedal to - 2004 Hummer H2 | Owner's Manual - Page 147
DRL) will also be activated if it is light enough outside. ;(Parking Lamps): The control on the driver's side of your instrument panel operates the exterior lamps. The exterior lamp control has four positions: Turn the knob to this position and release it to turn off all exterior lamps including - 2004 Hummer H2 | Owner's Manual - Page 148
as the taillamps, sidemarker, parking lamps, roof marker lamps and the instrument panel lights. The radio lights will also be dim. To turn off the automatic headlamp system, turn the exterior lamps switch to the off position and then release. Your vehicle has a light sensor located on the top of the - 2004 Hummer H2 | Owner's Manual - Page 149
Daytime Running Lamps The DRL system will come on when the following conditions are met: The ignition is on, the exterior lamps control is in AUTO, the transmission is not in PARK (P), and the light sensor determines it is daytime. When the DRL are on, only your DRL lamps will be on. The - 2004 Hummer H2 | Owner's Manual - Page 150
pressed to turn them off. Interior Lamps Instrument Panel Brightness The thumbwheel for this feature is located next to the exterior lamps control. D (Instrument Panel Lights): Turn the thumbwheel up or down to brighten or dim the instrument panel lights and the radio display. This will only work - 2004 Hummer H2 | Owner's Manual - Page 151
dome lamps on by turning the thumbwheel, located next to the exterior lamp control, all the way up. In this position, the dome lamps will remain a door. Entry/Exit Lighting Your vehicle is equipped with an illuminated entry/exit feature. When a door is opened or the key is removed from the - 2004 Hummer H2 | Owner's Manual - Page 152
or adapter fuses. If you experience a problem, see your dealer for additional information on the accessory power plugs. Notice: Improper use of the power outlet can cause damage not covered by your warranty. Do not hang any type of accessory or accessory bracket from the plug because the power - 2004 Hummer H2 | Owner's Manual - Page 153
Climate Controls Automatic Climate Control System With this system, you can control the heating, cooling and ventilation in your vehicle. Driver's Side Temperature Knob The driver's side knob is used to adjust the temperature of the air coming through the system on the driver's side. The - 2004 Hummer H2 | Owner's Manual - Page 154
selected, the air conditioning operation and air inlet will be automatically controlled. The air conditioning compressor will run when the outside temperature is over about 40°F (4°C). The air inlet will normally be set to outside air. If it's hot outside, the air inlet may automatically switch to - 2004 Hummer H2 | Owner's Manual - Page 155
. The temperature can also be adjusted using either temperature knob. Press the up or down arrows on the fan switch, the defrost button, the AUTO button, or the air conditioning button to turn the system on when it is off. Manual Operation You may manually adjust the air delivery mode or fan speed - 2004 Hummer H2 | Owner's Manual - Page 156
off the entire climate control system. Outside air will still enter the vehicle, and will be directed to the floor. This direction can be changed by pressing the mode button. The temperature can also be adjusted using either temperature knob. Press the up or down arrows on the fan switch, the defrost - 2004 Hummer H2 | Owner's Manual - Page 157
system will run the air conditioning automatically to cool and dehumidify the air entering the vehicle. If you select A/C off while in front defrost, defog or recirculation, the A/C snowflake symbol will turn off, but the A/C compressor will still run to help prevent fogging. On hot days, open the - 2004 Hummer H2 | Owner's Manual - Page 158
and windshield outlets. 0 (Front Defrost): Press the front defrost button to defrost the windshield. The system will automatically control the fan speed if you select defrost from AUTO mode. If the outside temperature is 40°F (4°C) or warmer, your air conditioning compressor will automatically run - 2004 Hummer H2 | Owner's Manual - Page 159
close to increase or decrease airflow. Climate Controls Personalization You can store and recall the climate control settings for temperature, air delivery mode and fan speed for two different drivers. The personal choice settings recalled are determined by the transmitter used to enter the vehicle - 2004 Hummer H2 | Owner's Manual - Page 160
, Gages, and Indicators This part describes the warning lights and gages on your vehicle. The pictures will help you locate them. Warning lights and gages can signal that something is wrong before it becomes serious enough to cause an expensive repair or replacement. Paying attention to your warning - 2004 Hummer H2 | Owner's Manual - Page 161
cluster is designed to let you know at a glance how your vehicle is running. You'll know how fast you're going, about how much fuel you have and many other things you'll need to know to drive safely and economically. United States version shown, Canada similar 3-27 - 2004 Hummer H2 | Owner's Manual - Page 162
There is an air bag readiness light on the instrument panel, which shows the air bag symbol. The system checks the air bag's electrical system for malfunctions. The light tells you if there is an electrical problem. The system check includes the air bag sensors, the air bag modules, the wiring and - 2004 Hummer H2 | Owner's Manual - Page 163
key to RUN. If the light doesn't come on then, have it fixed so it will be ready to warn you if there is a problem. If the air bag readiness light stays on after you start the vehicle or comes on when you are driving, your air bag system may not work properly. Have your vehicle serviced right - 2004 Hummer H2 | Owner's Manual - Page 164
Air Bag Off Light When you turn the right front passenger's air bag off, this light will come on and stay on to remind you that the air bag has been turned off. This light will go off when you turn the air bag back on again. See Air Bag Off Switch on page 1-68. for more on this, including important - 2004 Hummer H2 | Owner's Manual - Page 165
important safety information. {CAUTION: If the air bag readiness light ever comes on when you have turned off the air bag, it means that something may be wrong with the air bag system. The right front passenger's air bag could inflate even though the switch is off. If this ever happens, don - 2004 Hummer H2 | Owner's Manual - Page 166
Messages on page 3-56. If you must drive a short distance with the light on, be certain to turn off all your accessories, such as the radio and air conditioner. When the engine is running, the gage shows the condition of the charging system. Readings between the low and high warning zones indicate - 2004 Hummer H2 | Owner's Manual - Page 167
must drive, turn off all unnecessary accessories. Readings in either warning zone indicate a possible problem in the electrical system. Have the vehicle serviced as soon as possible. Brake System Warning Light With the ignition on, the brake system warning light will flash when you set the parking - 2004 Hummer H2 | Owner's Manual - Page 168
after you have pulled off the road and stopped carefully, have the vehicle towed for service. That's normal. If the light doesn't come on then, have it fixed so it will be ready to warn you if there is a problem. If the light stays on, or comes on when you're driving, your vehicle needs - 2004 Hummer H2 | Owner's Manual - Page 169
Traction Off Light The traction off light will come on when a traction control system or anti-lock brake system problem has been detected. The vehicle may need service. Engine Coolant Temperature Gage When this light is on, the system will not limit wheel spin. Adjust your driving accordingly. See - 2004 Hummer H2 | Owner's Manual - Page 170
265°F (130°C), the DIC will display a TRANSMISSION HOT message and the transmission will enter a transmission protection mode. When the transmission enters the protection mode, you may notice a change in the transmission shifting patterns. The transmission will return to normal shifting patterns - 2004 Hummer H2 | Owner's Manual - Page 171
repairs that would not be covered by your warranty. Do not drive your vehicle while the transmission temperature gage reading is above normal. See your dealer for service. The following situations can cause the transmission to operate at higher temperatures: • Towing a trailer, • hot outside air - 2004 Hummer H2 | Owner's Manual - Page 172
with this light on, after a while, your emission controls may not work as well, your fuel economy may not be as good and your engine may not run as smoothly. This could lead to costly repairs that may not be covered by your warranty. Notice: Modifications made to the engine, transmission, exhaust - 2004 Hummer H2 | Owner's Manual - Page 173
be required. • Light On Steady - An emission control system malfunction has been detected on your vehicle. Diagnosis and service may be required. If the Light Is On Steady You may be able to correct the emission system malfunction by considering the following: Did you recently put fuel into your - 2004 Hummer H2 | Owner's Manual - Page 174
on acceleration or stumbling on acceleration. (These conditions may go away once the engine is warmed up.) This will be detected by the system and cause the light to turn on. If you experience one or more of these conditions, change the fuel brand you use. It will require at least one full tank - 2004 Hummer H2 | Owner's Manual - Page 175
hot that it catches fire. You or others could be burned. Check your oil as soon as possible and have your vehicle serviced. Notice: Lack of proper engine oil maintenance may damage the engine. The repairs oil level or some other problem causing low oil pressure. Check your oil as soon as possible. See - 2004 Hummer H2 | Owner's Manual - Page 176
on briefly when you turn the key toward START. The light will stay on until the engine starts. Cruise Control Light The cruise light comes on whenever you set your cruise control. See "Cruise Control" under Turn Signal/Multifunction Lever on page 3-6. If the light flashes, the Passlock® system has - 2004 Hummer H2 | Owner's Manual - Page 177
are some situations you may experience with your fuel gage. None of these indicate a problem with the fuel gage. • At the gas station, the fuel pump shuts off before the gage reads full. • It takes a little more or less fuel to fill up than the fuel gage indicated. For example, the gage may have - 2004 Hummer H2 | Owner's Manual - Page 178
Driver Information Center (DIC) The DIC display is located on the instrument panel cluster above the steering column. The DIC can display information such as the trip odometer, fuel economy and personalization features. C (Personalization): Press this button to change personal settings of various - 2004 Hummer H2 | Owner's Manual - Page 179
amount of fuel used for the personal trip. • BUSINESS: AVG MPH - This shows the vehicle's average speed for the business trip. • PERSONAL: XX.X MPG- This shows how many miles per gallon of fuel your vehicle is getting for the personal trip based on current and past driving conditions. • BUSINESS - 2004 Hummer H2 | Owner's Manual - Page 180
accumulated since it was last reset. To reset the annual log, press and hold the select button for two seconds. Timer The DIC can be used as a timer. Press the select button while TIMER is displayed to start the timer. The display will show the amount of time that has passed - 2004 Hummer H2 | Owner's Manual - Page 181
drive without refueling. It's based on fuel economy and the fuel remaining in the tank. The display will show LOW if the fuel level is low. The fuel economy data used to determine fuel range is an average of recent driving conditions. As your driving conditions change, this data is gradually updated - 2004 Hummer H2 | Owner's Manual - Page 182
conditions. Always reset the engine oil life after an oil change. To reset the Oil Life System use the fuel Schedule in this manual. Also, the oil change reminder will not detect dusty conditions or engine malfunctions that LIGHTING SEAT POSITION RECALL EASY EXIT DRIVER SEAT CURB VIEW ASSIST - 2004 Hummer H2 | Owner's Manual - Page 183
been changed from their default state since then. The driver's preferences can be recalled by pressing the unlock button on the remote keyless Pressing the select button will scroll through the following choices: LOCK DOORS MANUALLY: The doors will not be locked automatically. LOCK DOORS WITH SPEED - 2004 Hummer H2 | Owner's Manual - Page 184
with the power lock switch or the keyless entry delayed locking feature is in use. You can temporarily override KEY OUT: All of the doors will unlock when the key is taken out of the ignition. UNLOCK DOORS MANUALLY: The doors will not be unlocked automatically. UNLOCK DRIVER IN PARK: The driver - 2004 Hummer H2 | Owner's Manual - Page 185
doors will lock immediately when pressing the power lock switch or the lock button on the keyless entry transmitter RECALL AT KEY IN: The memory seat position you saved will be recalled when you put the key in the ignition. Perimeter Lighting Press the personalization button until PERIMETER LIGHTING - 2004 Hummer H2 | Owner's Manual - Page 186
PERIMETER LIGHTING OFF: The perimeter lights will not come on when you unlock the vehicle with the remote keyless entry transmitter. Choose one of the two options and press the personalization - 2004 Hummer H2 | Owner's Manual - Page 187
in the display. To select your personalization for curb view assist, press the select button while CURB VIEW ASSIST is displayed on the DIC. Pressing the select button will scroll through the following choices: CURB VIEW: OFF (default): Neither outside mirror will be tilted down when the vehicle is - 2004 Hummer H2 | Owner's Manual - Page 188
VIEW: DRIVER: The driver's outside mirror will be tilted down when the vehicle is shifted into REVERSE (R). CURB VIEW: BOTH: The driver's and passenger's outside mirror No seat exit recall will occur. EASY EXIT SEAT: ON: The driver's seat will move to the exit position when the key is removed from - 2004 Hummer H2 | Owner's Manual - Page 189
When you see the language that you would like, release both buttons. The DIC will then display the information in English units. For example, distance in miles and fuel economy in miles per gallon. Choose one of the two Select Button The select button is used to reset certain functions and turn off - 2004 Hummer H2 | Owner's Manual - Page 190
driver that the status of the vehicle has changed and that some action may be needed by the driver to correct the condition warm up and cycle the ignition to be sure this message will clear. Once the problem engine oil needs to be changed and service is required for your vehicle. See Scheduled - 2004 Hummer H2 | Owner's Manual - Page 191
temperature gets too hot and the engine further enters the engine coolant protection mode. See Engine Overheating on page 5-27 for further information. You may also see this message when the vehicle determines a problem with the electronic throttle control. See your dealer for service. LOW COOLANT - 2004 Hummer H2 | Owner's Manual - Page 192
SERVICE AIR BAG If there is a problem with the air bag system, this message will be displayed on the DIC. Have a qualified technician inspect the system for problems. Pressing the select button will clear it from the DIC display. SERVICE AIR SUSPENSION If a problem occurs with the suspension system, - 2004 Hummer H2 | Owner's Manual - Page 193
fuel cap will allow fuel to evaporate into the atmosphere. A few driving trips with the cap properly installed should turn the light and message off. TRANSMISSION HOT If the transmission traction control system has detected that any of the vehicle's wheels are slipping, the traction control system - 2004 Hummer H2 | Owner's Manual - Page 194
reaches a safe level. Towing a trailer Hot outside air temperatures Hauling a large or heavy load Low transmission fluid level High transmission fluid level Restricted air flow to the radiator and the auxiliary transmission oil cooler (if equipped). DRIVER DOOR AJAR If the driver's door is not - 2004 Hummer H2 | Owner's Manual - Page 195
DIC display. LEFT REAR DOOR AJAR If the driver's side rear door is not fully closed and the vehicle liftgate lock malfunctions and/or the liftgate fuse blows. For more information on fuses, see Fuses after replacing the fuse, see you dealer for service. KEYFOB X BATTERY LOW If a remote keyless - 2004 Hummer H2 | Owner's Manual - Page 196
first. Figure out which radio you have in your vehicle, find out what your audio system can do and how to operate all of its controls to be sure you're getting the most out of the advanced engineering that went into it. Your vehicle has a feature called Retained Accessory Power (RAP). With - 2004 Hummer H2 | Owner's Manual - Page 197
display. DISPL (Display): Press this knob to switch the display between the radio station frequency and the time. Time display is available with the ignition turned off. For RDS, press the DISPL knob to change what appears on the display while using - 2004 Hummer H2 | Owner's Manual - Page 198
switch between FM1, FM2, AM. The display will show your selection. TUNE: Turn this knob to select radio stations. Press the right or the left arrow to go to the next or to the previous station and stay there. The radio of the pushbuttons to stop scanning. The radio will scan only to stations that are - 2004 Hummer H2 | Owner's Manual - Page 199
, push and release the AUDIO knob until FADE appears on the display. Turn the knob to move the sound toward the front or the rear speakers. To adjust the balance and fade to the middle position, push the AUDIO knob then push it again and hold it until the radio produces one beep - 2004 Hummer H2 | Owner's Manual - Page 200
System (RDS) Your audio system is equipped with a Radio Data System (RDS). RDS features are available for use only on FM stations that broadcast RDS information. With RDS, your radio can do the following: Finding a Program Type (PTY) Station To select and find a desired PTY perform the following - 2004 Hummer H2 | Owner's Manual - Page 201
will scan for stations with the selected PTY and traffic announcements. BAND (Alternate Frequency): Alternate frequency allows the radio to switch to a stronger station with the same program type. To turn alternate frequency on, press and hold BAND for two seconds. AF ON will appear on the display - 2004 Hummer H2 | Owner's Manual - Page 202
broadcast system. This feature is not supported by all RDS stations. INFO ( If the whole message is not displayed, parts of the message will appear every three seconds by pressing the INFO button. You can view an old message until a new message is comes on the tuned radio station you will hear - 2004 Hummer H2 | Owner's Manual - Page 203
THEFTLOCK® system has locked up. You must return to the dealer for service. If you want to insert a tape while the ignition is off, the tape is playing, use the VOL, AUDIO, and SEEK controls just as you do for the radio. TAPE will appear on the display and an arrow showing which side of the tape is - 2004 Hummer H2 | Owner's Manual - Page 204
again to return to playing speed. The radio will play while the tape advances. The station frequency and FWD will appear on the display. You may select stations during forward operation by using TUNE and SEEK. 5 SIDE: Press this pushbutton to play the other side of the tape. q SEEK r: The right - 2004 Hummer H2 | Owner's Manual - Page 205
contact your dealer. If your radio displays an error message, write it down and provide it to your dealer when reporting the problem. • The tape is tight your player is working properly. CD Adapter Kits It is possible to use a portable CD player with your cassette tape player after activating the - 2004 Hummer H2 | Owner's Manual - Page 206
side up. The player will pull it in and the CD should begin playing. The CD symbol will appear on the display. If you want to insert a CD with the ignition off, first press the eject button or the DISPL knob. If you turn off the ignition or radio these problems occur try Release the pushbutton to play the - 2004 Hummer H2 | Owner's Manual - Page 207
for more than two seconds to advance at 17 times the normal playing speed. Release the pushbutton to play the passage. ET and the elapsed time of the than two seconds until SCAN appears on the display and you hear a beep. The radio will go to the next track, play for 10 seconds, then go on to the - 2004 Hummer H2 | Owner's Manual - Page 208
it could be for one of the following reasons: Radio with Six-Disc CD • It is very hot. When the temperature returns to normal, the CD down. • The air is very humid. If so, wait about an hour and try again. • There may have been a problem while burning the CD. Playing the Radio PWR (Power): Push - 2004 Hummer H2 | Owner's Manual - Page 209
as vehicle speed increases. To turn automatic volume off, press this button until AVOL OFF appears on the display. RCL (Recall): Press this knob to switch the display between the radio station frequency and the time. Press this knob with the ignition off to display the time. To change the default on - 2004 Hummer H2 | Owner's Manual - Page 210
steps for each pushbutton. Setting the Tone (Bass/Treble) AUDIO: Push and release the AUDIO knob until BASS, MID, or TREB appears on the display. AUDIO knob. The radio will produce one beep and adjust the display level to the middle position. To adjust all tone and speaker controls to the middle - 2004 Hummer H2 | Owner's Manual - Page 211
the fade between the front and the rear speakers, push and release the AUDIO knob until FADE control is displayed. CENTERED will appear on the display and you will hear a beep. Radio Data System (RDS) Your audio system is equipped with a Radio Data System (RDS). RDS features are available for use - 2004 Hummer H2 | Owner's Manual - Page 212
and TRAF are on, the radio will search for stations with the selected PTY and traffic announcements. To use the PTY interrupt feature, press and the desired PTY is displayed, press and hold either SCAN arrow, and the radio will begin scanning the stations in the PTY. 4. Press either SCAN arrow to - 2004 Hummer H2 | Owner's Manual - Page 213
radio may switch to stronger stations. To turn alternate frequency off, press and hold BAND again for two seconds. AF OFF will appear on the display. The radio will not switch system. This feature is not supported by all RDS stations. INFO the INFO button. You can view an old message until a - 2004 Hummer H2 | Owner's Manual - Page 214
use the TUNE knob or the SEEK arrows to go to a station that supports traffic announcements. If no station is found, NO TRAFFIC will appear on the display. Your radio finding tracks, and/or difficulty in loading and ejecting. If these problems occur try a known good CD. Do not add paper labels to CDs - 2004 Hummer H2 | Owner's Manual - Page 215
: 1. Turn the ignition on. 2. Press and release the LOAD side of the LOAD CD button. 3. Wait for the light, located to the right of the slot, to turn loading CDs, with the radio on or off, press the LOAD side of the LOAD CD button to cancel the loading function. The radio will begin to play the - 2004 Hummer H2 | Owner's Manual - Page 216
side of this button to eject a single CD or multiple CDs. To eject the CD that is currently playing, press and release this button. To eject multiple CDs, press and hold this button for two seconds. You will hear a beep and the light have tried to push it in manually. The receivers 25-second eject - 2004 Hummer H2 | Owner's Manual - Page 217
repeat one track or an entire CD. To use repeat, do the following: • To repeat the track you are listening to, press and release the RPT button. RPT will appear on seconds until CD SCAN appears on the display and you hear a beep. The radio will go to the next track, play for 10 seconds, then go on - 2004 Hummer H2 | Owner's Manual - Page 218
RCL (Recall): Press this knob to see how long the current track has been be the default. BAND: Press this button to listen to the radio when a CD(s) is playing. 3. Select the desired CD by pressing the numbered pushbutton and then use the SEEK SCAN right arrow button to locate the track that you - 2004 Hummer H2 | Owner's Manual - Page 219
To delete tracks from the song list, perform the following steps: 1. Turn the CD player on. 2. Press the SONG LIST button to turn song list on. S-LIST will appear on the display. 3. Press either SEEK SCAN arrow to select the desired track to be deleted. 4. Press and hold the SONG LIST button for two - 2004 Hummer H2 | Owner's Manual - Page 220
Radio Service capabilities (48 contiguous US states, if equipped). The radio system can also communicate with your navigation system to broadcast announcements on traffic, weather, and emergency alert communications. For information on how to use this system, see the "Navigation System" manual - 2004 Hummer H2 | Owner's Manual - Page 221
headphones while the driver listens to the radio through the front speakers. The rear seat passengers have control of the volume for each set of headphones. The front seat audio controls always override the RSA controls. Rear Seat Audio Controls The following functions are controlled by the RSA - 2004 Hummer H2 | Owner's Manual - Page 222
, press this button to go to the other side of the tape. While listening to FM1, FM2, or AM, press the up or the down arrow to tune to the next or to the previous station and stay there. If the front radio is in use, you cannot seek through different stations. While listening - 2004 Hummer H2 | Owner's Manual - Page 223
Audio Steering Wheel Controls You can control certain radio functions using the buttons on your steering wheel. If a cassette tape is playing, press this button to play the other side of the tape. If a CD is playing in the CD changer, press this button to go to the next available CD. Q SOURCE R: - 2004 Hummer H2 | Owner's Manual - Page 224
properly or may cause failure of the tape player. Your tape player should be cleaned regularly after every 50 hours of use. Your radio may display CLEAN to indicate that you have used your tape player for 50 hours without resetting the tape clean timer. If this message appears on the display, your - 2004 Hummer H2 | Owner's Manual - Page 225
being ejected, use the following steps: 1. Turn the ignition on. 2. Turn the radio off. scrubbing action, wet-type cleaner which uses a cassette with a fabric belt as the scrubbing type cleaner. The use of a non-scrubbing action, dry reset the CLEAN indicator. The radio will display --- or CLEANED to - 2004 Hummer H2 | Owner's Manual - Page 226
side without writing when handling discs. Pick up discs by grasping the outer edges or the edge of the hole and the outer edge. Fixed Mast Antenna The fixed mast antenna controlled by the radio. To change the volume level, press and hold pushbutton 6 with the ignition on and the radio The use of CD - 2004 Hummer H2 | Owner's Manual - Page 227
Ice or Snow ...4-56 Towing ...4-65 Towing Your Vehicle ...4-65 Recreational Vehicle Towing ...4-65 Loading Your Vehicle ...4-67 Selectable Extended Rear Ride Height ...4-73 Electronically Controlled Air Suspension System ...4-74 Trailer Recommendations ...4-75 Towing a Trailer ...4-75 Your Driving - 2004 Hummer H2 | Owner's Manual - Page 228
the best defensive driving maneuver, in both city and rural driving. You never know when the vehicle in front of you is going to brake or turn suddenly. Defensive driving requires that a driver concentrate on the driving task. Anything that distracts from the driving task - such as concentrating on - 2004 Hummer H2 | Owner's Manual - Page 229
for these laws. The obvious way to eliminate the leading highway safety problem is for people never to drink alcohol and then drive. But what if . In recent years, more than 16,000 annual motor vehicle-related deaths have been associated with the use of alcohol, with more than 300,000 people injured - 2004 Hummer H2 | Owner's Manual - Page 230
even lower. For example, it is 0.05 percent in both France and Germany. The BAC limit for all commercial drivers in the United States is 0.04 percent. The BAC will be over 0.10 percent after three to six drinks (in one hour). Of course, as - 2004 Hummer H2 | Owner's Manual - Page 231
's system can make crash injuries worse, especially injuries to the brain, spinal cord or heart. This means that when anyone who has been drinking - driver or passenger - is in a crash, that person's chance of being killed or permanently disabled is higher than if the person had not been drinking - 2004 Hummer H2 | Owner's Manual - Page 232
of a second. But that is only an average. It might be less with one driver and as long as two or three seconds or more with another. Age, physical condition, alertness, coordination and eyesight all play a part. So do alcohol, drugs and frustration. But even in 3/4 of a second, a vehicle moving at - 2004 Hummer H2 | Owner's Manual - Page 233
pump your used up, it may take longer to stop and the brake pedal will be harder to push. Anti-lock Brake System (ABS) Your vehicle has anti-lock brakes. ABS motor or clicking noise while this test is going on. This is normal. If there is a problem with the anti-lock brake system, this warning light - 2004 Hummer H2 | Owner's Manual - Page 234
happens with ABS: A computer senses that wheels are slowing down. If one of the wheels is about to stop rolling, the computer will separately work the brakes at each front wheel and at both rear wheels. As you brake, your computer keeps receiving updates on wheel speed and controls braking pressure - 2004 Hummer H2 | Owner's Manual - Page 235
pumping sound. This is normal and doesn't mean there's a problem with your vehicle. Examples of these conditions include hard acceleration in a turn, an abrupt upshift or downshift of the transmission or driving on rough roads. If your vehicle is in cruise control when the TCS begins to limit wheel - 2004 Hummer H2 | Owner's Manual - Page 236
on briefly when you turn the ignition key to RUN; if it doesn't see your dealer for service. If you restart your engine, the system reverts to the standard TCS mode. The traction off light will come on when a Traction Control System or Anti-Lock Brake System problem has been detected and the vehicle - 2004 Hummer H2 | Owner's Manual - Page 237
used to turn this feature on or off is located above the transfer case buttons to the right of the steering wheel. You must wait for the light repairs would not be covered by your warranty. Do not use the locking rear axle on pavement. If you need four-wheel drive when traveling on pavement, use - 2004 Hummer H2 | Owner's Manual - Page 238
conditions. Under less favorable conditions you will want to go slower. If you need to reduce your speed as you approach a curve, do it before you enter the curve, while your front wheels the "driver lost control" accidents mentioned on the news happen on curves. Here is why: Experienced driver or - 2004 Hummer H2 | Owner's Manual - Page 239
child darts out from between parked cars and stops right in front of you. You can avoid these problems by braking - if you can stop in time. But sometimes requires close attention and a quick decision. If you are holding the steering wheel at the recommended 9 and 3 o'clock positions, you can turn it - 2004 Hummer H2 | Owner's Manual - Page 240
driver face to face with the worst of all traffic accidents - the head-on collision. So here are some tips for passing: • "Drive ahead." Look down the road, to the sides the steering wheel up to one-quarter turn until the right front tire contacts the pavement edge. Then turn your steering wheel to - 2004 Hummer H2 | Owner's Manual - Page 241
enough ahead of the passed vehicle to see its front in your inside mirror, activate your right lane change signal and move back into the right starting to turn. • If you are being passed, make it easy for the following driver to get ahead of you. Perhaps you can ease a little to the right. • - 2004 Hummer H2 | Owner's Manual - Page 242
: Any anti-lock brake system (ABS) helps avoid only the braking skid. Skidding In a skid, a driver can lose control of the vehicle. Defensive drivers avoid most skids by taking reasonable care suited to existing conditions, and by not "overdriving" those conditions. But skids are always possible - 2004 Hummer H2 | Owner's Manual - Page 243
it is very important that you read this guide. You will find many driving tips and , be sure to have all necessary maintenance and service work done. Check to make sure all underbody all the information about your four-wheel-drive vehicle in this manual. Is there enough fuel? Is the spare tire fully - 2004 Hummer H2 | Owner's Manual - Page 244
show how to install the optional "U" steps. If you want to remove them, just reverse the instructions: 1. Start with the side step brackets pointing up and away from you. Or just make sure the HUMMER logo faces up. 2. For the front step, use the first and third brackets on the vehicle from the - 2004 Hummer H2 | Owner's Manual - Page 245
on the side step brackets into the holes in the vehicle's rocker panel protector brackets. If you have difficulty doing this, it may help to have someone hold up the step while you guide the pins into the holes. You will be guiding three pins into the holes with the fourth hole in - 2004 Hummer H2 | Owner's Manual - Page 246
6. Once the knob is torqued, install the cotter pin through the hole (see arrow) in the end of the knob's threaded shaft. This will help prevent the knob from coming completely loose and falling out. 5. Hand-tighten the knob by turning it clockwise until it is seated against the rocker panel - 2004 Hummer H2 | Owner's Manual - Page 247
allow threads to dry. • Apply Threadlocker (GM Part No. 12345382, in Canada 10953489) or equivalent inner brackets first, but do not tighten them. 4. Using a level, make sure the step is level in nuts and bolts to 39 lb ft (50 Y). The driver's side of the vehicle is shown with the body removed for - 2004 Hummer H2 | Owner's Manual - Page 248
. You or your passengers could be injured. Keep cargo below the top of the seatbacks. CAUTION: (Continued) You will find other important information in this manual. See Loading Your Vehicle on page 4-67 and Tires on page 5-60. 4-22 - 2004 Hummer H2 | Owner's Manual - Page 249
the winch instructions. In a remote area, a winch can be handy if you get stuck. But you will want to know how to use it properly. • Always use established includes wheel-spinning, breaking down trees or unnecessary driving through streams or over soft ground). • Always carry a litter bag - make - 2004 Hummer H2 | Owner's Manual - Page 250
High Mobility Characteristics The HUMMER H2 has a 10 inch (25.4 cm) running groung clearance (A) and a 9 inch (22.8 cm) axle to ground clearance (B) while maintaining a low silhouette and a low center of gravity. 4-24 - 2004 Hummer H2 | Owner's Manual - Page 251
The HUMMER H2 has an approximate approach angle (A) of 42° and a departure angle (B) of 37°, depending on suspension packages. Design specifications required a minimum gradeability of 60% (31°) slope, with the vehicle fully loaded, on high friction surfaces at 6 mph (9.7 km/h). The vehicle - 2004 Hummer H2 | Owner's Manual - Page 252
Also, specifications required that the HUMMER H2 be able to traverse a 40% (22°) side slope at 6 mph (9.7 km/h) while fully loaded on high friction surfaces. The HUMMER H2 can climb a 16 inch (40.6 cm) vertical step. Step climbing is best done by approaching the step at an angle rather than straight - 2004 Hummer H2 | Owner's Manual - Page 253
that a new approach can be tried. 6. As the first wheel crosses the obstacle, be prepared to modulate the brake and throttle to maintain control and avoid tire drop-off from obstacles. Repeat the controlled process for the other wheels. For mounds, washouts, loose up-hill slopes, ditches, etc. 4-27 - 2004 Hummer H2 | Owner's Manual - Page 254
for more torque and lower speeds. Transmission FIRST (1) gear is generally recommended. 3. Apply slight pressure to the brake when the shaking or shuddering sensation is felt, keeping the vehicle moving in a controlled manner. 4. Be prepared to modulate the brake and throttle through the adverse - 2004 Hummer H2 | Owner's Manual - Page 255
, your wheels can leave the ground. If this happens, even with one or two wheels, you can not control the vehicle There are no road signs, posted speed limits or signal lights. You have to use your own good judgment about what is driver who has been drinking. See Drunken Driving on page 4-3. 4-29 - 2004 Hummer H2 | Owner's Manual - Page 256
Approach Angle - a Key to Mobility. If you encounter a large dip in the terrain, do not enter straight on; enter at an angle - 15° minimum approach (A), 75° maximum approach angle (B). For very large dips, ditches or small washes, coast in, using the engine as a brake (transmission and transfer case - 2004 Hummer H2 | Owner's Manual - Page 257
Using the proper technique, the HUMMER H2 will cross logs up to 10 inches (25.4 cm) in diameter. Approach the log at approximately a 15° angle (A) with the transmission in FIRST (1) and the transfer case in 4LO LOCK and "walk" the HUMMER H2 down them, you can not control your speed. If you drive - 2004 Hummer H2 | Owner's Manual - Page 258
need to take some special steps. • Use transmission and transfer case low gear and get a firm grip on the steering wheel. • Is there a constant incline, or ? • Let the traction system work to control any wheel slippage. TC2 is designed to allow moderate wheel spin with some capability to dig in and - 2004 Hummer H2 | Owner's Manual - Page 259
hopping. This can cause damage to the driveline or suspension components. Improper driving technique is not covered by your vehicle warranty • Sound the horn as you approach the top of the hill to let opposing traffic know you are there. • Use your headlamps even during the day. They make you - 2004 Hummer H2 | Owner's Manual - Page 260
control. Instead, apply the regular brake to stop the vehicle. Then apply the parking brake. Shift to REVERSE (R), release is still running, shift the transmission to REVERSE (R), release the parking brake, and slowly wheel at the 12 o'clock position. This way, you will be able to tell if your wheels - 2004 Hummer H2 | Owner's Manual - Page 261
control at all times. A: Set the parking brake, put your transmission in PARK (P) and turn off the engine. Leave the vehicle and go get some help. Exit on the uphill side control and a serious accident. Apply the brakes lightly when descending a hill and use a low gear to keep vehicle speed under - 2004 Hummer H2 | Owner's Manual - Page 262
them you could lose control and have a serious accident wheel base (the distance from the front wheels to the rear wheels wheels. This could cause a downhill slide or a rollover. • Never go downhill with the transmission in NEUTRAL (N). This is called "free-wheeling release the parking brake, and drive straight - 2004 Hummer H2 | Owner's Manual - Page 263
conditions can be a problem worse. If you drive across a rock with the uphill wheels, or if the downhill wheels drop into a rut or depression, your vehicle can tilt downhill. This should help straighten out the vehicle and prevent the side slipping. However, a much better way to prevent this is to - 2004 Hummer H2 | Owner's Manual - Page 264
walk down the slope, stay out of the path the vehicle will take if it does roll over. {CAUTION: Getting out on the downhill (low) side of a vehicle stopped across an incline is dangerous. If the vehicle rolls over, you could be crushed or killed. Always get out on the uphill - 2004 Hummer H2 | Owner's Manual - Page 265
your wheels will not get good traction. You can not accelerate as quickly, turning is more difficult, and you will need longer braking distances. It is best to use a the worst tire traction. On these surfaces, it is very easy to lose control. On wet ice, for example, the traction is so poor that you - 2004 Hummer H2 | Owner's Manual - Page 266
water is before you drive through it. If it is deep enough to cover your wheel hubs, axles or exhaust pipe, do not try it - you probably will not get through. Also, water that deep can damage your axle and other vehicle parts. Your vehicle is capable of depths up to 20 inches. Know how to judge - 2004 Hummer H2 | Owner's Manual - Page 267
to allow proper cooling. Check the body structure, steering, suspension, wheels, tires and exhaust system for damage. Also, check the fuel lines and cooling system for any leakage. Your vehicle will require more frequent service due to off-road use. Refer to the Maintenance Schedule for additional - 2004 Hummer H2 | Owner's Manual - Page 268
rearview mirror to driver may require at least twice as much light to see the same thing at night as a 20-year-old. What you do in the daytime can also affect your night vision. For example, if you spend the day in bright sunshine you are wise to wear sunglasses. Your eyes will have less trouble - 2004 Hummer H2 | Owner's Manual - Page 269
streaking or missing areas on the windshield, or when strips of rubber start to separate from the inserts. Rain and wet roads can mean driving trouble. On a wet road, you can not stop, accelerate or turn as well because your tire-to-road traction is not as good as on dry - 2004 Hummer H2 | Owner's Manual - Page 270
will not work as well in a quick stop and may cause pulling to one side. You could lose control of the vehicle. After driving through a large puddle of water or a car wash, apply your brake pedal lightly until your brakes work normally. Driving too fast through large water puddles or even going - 2004 Hummer H2 | Owner's Manual - Page 271
quickly through deep puddles or standing water, water can come in through your engine's air intake and badly damage your engine. Never drive through water that is slightly lower room ahead, and be prepared to have your view restricted by road spray. • Have good tires with proper tread depth. See Tires on - 2004 Hummer H2 | Owner's Manual - Page 272
and plan your trip into an unknown part of the city just as you would for a cross-country trip. • Try to use the freeways that rim and crisscross most red light. One of the biggest problems with city streets is the amount of traffic on them. You will want to watch out for what the other drivers are - 2004 Hummer H2 | Owner's Manual - Page 273
speed most of the other drivers are driving. Too-fast or If you have a clear view of the freeway as you Switch on your turn signal, check your mirrors limit or to the prevailing rate if it is slower. Stay in the right lane unless you want to pass. Before changing lanes, check your mirrors. Then use - 2004 Hummer H2 | Owner's Manual - Page 274
day's work - do not plan to make too many miles that first part of the journey. Wear comfortable clothing and shoes you can easily drive in. Is serviced and maintained, it is ready to go. If it needs service, have it done before starting out. Of course, you will find experienced and able service - 2004 Hummer H2 | Owner's Manual - Page 275
condition as "highway hypnosis"? Or is it just plain falling asleep at the wheel • Fuel, Engine safe, trouble-free interior. • Keep your eyes moving. Scan the road ahead and to the sides. Check your mirrors and your instruments frequently. • If you get sleepy, pull off the road into a rest, service - 2004 Hummer H2 | Owner's Manual - Page 276
all fluid levels and also the brakes, tires, cooling system and transmission. These parts can work hard on mountain roads. • Know how to go down hills hill. {CAUTION: If you do not shift down, your brakes could get so hot that they would not work well. You would then have poor braking or even none - 2004 Hummer H2 | Owner's Manual - Page 277
work of slowing down. They could get so hot that they would not work well. You would gear. The lower gears help cool your engine and transmission, and you can climb the hill better. • may see highway signs on mountains that warn of special problems. Examples are long grades, passing or no-passing - 2004 Hummer H2 | Owner's Manual - Page 278
ashlight, a red cloth and a couple of reflective warning triangles. And, if you will be driving under severe conditions, include a small bag of sand, a piece of old carpet or a couple of burlap bags to help provide traction. Be sure you properly secure these items in your vehicle. Driving on Snow or - 2004 Hummer H2 | Owner's Manual - Page 279
and adjust your driving to the road conditions. See Traction Control System (TCS) on page 4-9. Your on. But wet ice can be even more trouble because it may offer the least traction of sand crews can get there. Whatever the condition - smooth ice, packed, blowing or loose snow - drive with caution. - 2004 Hummer H2 | Owner's Manual - Page 280
insulators from newspapers, burlap bags, rags, floor mats - anything you can wrap around yourself or tuck under your clothing to keep warm. If you are stopped and keep yourself and your passengers safe: You can run the engine to keep warm, but be careful. • Turn on your hazard flashers. • Tie a red - 2004 Hummer H2 | Owner's Manual - Page 281
collect there. Open a window just a little on the side of the vehicle that is away from the wind. This will That is, push the accelerator slightly. This uses less fuel for the heat that you get and it little as possible. Preserve the fuel as long as you can. To help keep warm, you can get out of - 2004 Hummer H2 | Owner's Manual - Page 282
" can help you get out when you are stuck, but you must use caution. Rocking Your Vehicle To Get It Out First, turn your steering wheel left and right. That will clear the area around your front wheels. Your vehicle has a Traction Control System that will activate when the system senses that the - 2004 Hummer H2 | Owner's Manual - Page 283
Using the Recovery Loops Your vehicle may be equipped with recovery loops at the front and rear of your vehicle. You may need to use them if you are stuck off-road and need to be pulled to some place where you can continue driving. Rear of Vehicle Front of Vehicle 4-57 - 2004 Hummer H2 | Owner's Manual - Page 284
away from the vicinity of the loops and any chains or cables during use. Always pull the vehicle straight out. Never pull on the loops at the chain or cable snapping back. Notice: Never use the recovery loops to tow the vehicle. Your vehicle could be damaged and it would not be covered by - 2004 Hummer H2 | Owner's Manual - Page 285
First Aid Kit and Tool Kit Your vehicle may have a first aid kit and/or a tool kit located in the storage bin behind the spare tire. They are held in place with a hook and loop fastener strap. If your vehicle has the tool kit, the kit includes a flashlight, a tire pressure gage and a multi-purpose - 2004 Hummer H2 | Owner's Manual - Page 286
Your vehicle is equipped with a front receiver. You can use the receiver with a power winch platform (described later in this section), receiver extension or with other accessories. Never use the front receiver to tow a trailer. You can use the front receiver to tow your vehicle behind another. See - 2004 Hummer H2 | Owner's Manual - Page 287
Receiver Extension (If Equipped) Use the receiver extension with the front receiver and various light-duty accessories such as bike racks. Notice: Do not attach accessories or cargo that weigh more than 240 lbs. (108 kg) to the receiver extension. You could damage the receiver extension and/or your - 2004 Hummer H2 | Owner's Manual - Page 288
can use the power winch platform with an aftermarket winch. Connect the winch to the platform and wiring to the vehicle following the winch manufacturer's guidelines. 1. Slide the winch platform into the front 2. Slide the pin down through the hole in the front bumper and into the receiver. 4-62 - 2004 Hummer H2 | Owner's Manual - Page 289
with the rest of the pin. Remove the pin and slide the winch platform out from the receiver. Notice: Do not use the winch platform to winch at a tension of more than 9,000 lbs. (4 082 kg). This would damage your under the receiver. The pin is now secure and you will be able to use the winch. 4-63 - 2004 Hummer H2 | Owner's Manual - Page 290
a solid anchor directly in front of your vehicle to achieve a straight line pull. • Put your transmission in NEUTRAL (N). • Use your regular brakes to hold your vehicle in place and block the wheels to keep the vehicle from moving. Notice: Using a power winch with the transmission in gear to pull - 2004 Hummer H2 | Owner's Manual - Page 291
towing service if you need to have your disabled vehicle towed. See Roadside Assistance Program on page 7-5. If you want to tow your vehicle towing: • What's the towing capacity of the towing vehicle? Be sure you read the tow vehicle manufacturer's recommendations. • How far will you tow? - 2004 Hummer H2 | Owner's Manual - Page 292
to select the NEUTRAL position for your vehicle. 6. Release the parking brake only after the vehicle being towed is firmly attached to the towing vehicle. You can use your vehicle's front mounted receiver with the proper accessories to tow it. See "Front Mounted Receiver" under If You Are Stuck: In - 2004 Hummer H2 | Owner's Manual - Page 293
the GVWR, or either the maximum front or rear GAWR. If you do, parts on your vehicle can break, and it can change the way your vehicle handles. These could cause you to lose control and crash. Also, overloading can shorten the life of your vehicle. A. Vehicle Capacity Weight The Tire and Loading - 2004 Hummer H2 | Owner's Manual - Page 294
vehicle. Consult this manual to determine how this reduces the available cargo and luggage load capacity of your vehicle. See Towing a Trailer on page 4-75 for important information on towing a trailer, towing safety rules and trailering tips. Steps for Determining Correct Load Limit 1. Locate the - 2004 Hummer H2 | Owner's Manual - Page 295
Occupant and Cargo Weight = Total 1,000 lbs. (453 kg) 300 lbs. (136 kg) 700 lbs. (317 kg) Item A B C Loading Your Vehicle Description Vehicle Capacity Weight for Example 2 = Subtract Occupant Weight 150 lbs. (68 kg) × 5 = Available Cargo Weight = Total 1,000 lbs. (453 kg) 750 lbs. (340 kg) 250 - 2004 Hummer H2 | Owner's Manual - Page 296
includes the weight of the vehicle, all occupants, fuel and cargo. Refer to your vehicle's tire and loading information label for specific information about your vehicle's capacity weight and seating positions. The combined weight of the driver, passengers and cargo should never exceed your vehicle - 2004 Hummer H2 | Owner's Manual - Page 297
front or rear axle. And, if you do have a heavy load, you should spread it out. CAUTION: (Continued) break, and it can change the way your vehicle handles. These could cause you to lose control and crash. Also, overloading can shorten the life of your vehicle. Your warranty does not cover parts - 2004 Hummer H2 | Owner's Manual - Page 298
Using heavier suspension important loading information for off-road driving in this manual. See "Loading Your Vehicle for Off-Road Driving removable items, you may need to put a limit on how many people you can carry inside Axle Weight Rating (GAWR) of the front or rear axle. See Loading Your Vehicle - 2004 Hummer H2 | Owner's Manual - Page 299
part of the electronically controlled air suspension system controls this feature is located on the instrument panel to the right of the steering wheel. To use this feature, ensure that the following conditions are met: • The engine must be running. • All doors must be fully closed. The suspension - 2004 Hummer H2 | Owner's Manual - Page 300
. You may also hear the release of air similar to a hissing sound during suspension operation. This is normal. Load leveling will not function normally with the inflator hose attached to the inflator outlet. Remove the inflater hose from the outlet when it is not in use. See Accessory Inflator on page - 2004 Hummer H2 | Owner's Manual - Page 301
damage your vehicle and result in costly repairs not covered by your warranty. To pull a trailer correctly, follow the advice in this part, and see your dealer for important information about towing a trailer with your vehicle. To identify the trailering capacity of your vehicle, you should read the - 2004 Hummer H2 | Owner's Manual - Page 302
vehicle by itself. Trailering means changes in handling, accelleration, braking, durability and fuel economy. Successful, safe trailering takes correct equipment, and it has to be used properly. That's the reason for this part. In it are many time-tested, important trailering tips and safety rules - 2004 Hummer H2 | Owner's Manual - Page 303
off tow/haul. The indicator light on the instrument panel will turn off. The vehicle will automatically turn off tow/haul every time it is started. Driving with tow/haul activated without a heavy load or with no trailer will cause reduced fuel economy and unpleasant engine and transmission driving - 2004 Hummer H2 | Owner's Manual - Page 304
Use one of the following charts to determine how much your vehicle can weigh, based upon your vehicle model and options. Maximum trailer weight is calculated assuming only the driver is in the tow and Owner Assistance Information Booklet. In Canada, write to: General Motors of Canada Limited Customer - 2004 Hummer H2 | Owner's Manual - Page 305
Certification label at the rear edge of the driver's door or see Loading Your Vehicle on page 4-67. Then be sure you don't go over the GVW limit for your vehicle, or the GAWR, including the weight of the trailer tongue. If you use a weight distributing hitch, make sure you don't go - 2004 Hummer H2 | Owner's Manual - Page 306
tow vehicle. If you ll be pulling a trailer that, when loaded, will weigh more than 4,000 lbs. (1 814 kg) be sure to use a properly mounted weight-distributing hitch and sway control use a sway control if your trailer will weigh more than these limits. You can ask a hitch dealer about sway controls. - 2004 Hummer H2 | Owner's Manual - Page 307
to read and follow the instructions for the trailer brakes so Driving with a Trailer Towing a trailer requires a certain parts and attachments, safety chains, electrical connector, lamps, tires and mirror parts can withstand 3,000 psi (20 650 kPa) of pressure. • The trailer's brake system will use - 2004 Hummer H2 | Owner's Manual - Page 308
. Always back up slowly and, if possible, have someone guide you. Turn Signals When Towing a Trailer The arrows on your instrument panel will flash trailer lamps will also flash, telling other drivers you're about to turn, change lanes or stop. When towing a trailer, the arrows on your instrument - 2004 Hummer H2 | Owner's Manual - Page 309
have to use your brakes so much that they would get hot and no longer work well. You can tow in DRIVE (D). You may want to shift the transmission to THIRD (3) or, if necessary, a lower gear selection if the transmission shifts too often (e.g., under heavy loads and/or hilly conditions). You may - 2004 Hummer H2 | Owner's Manual - Page 310
and • release the Towing Your vehicle will need service transmission fluid (don't overfill), engine oil, axle lubricant, belts, cooling system and brake system. Each of these is covered in this manual , and the Index will help you find them quickly. If you're trailering, it's a good idea to review - 2004 Hummer H2 | Owner's Manual - Page 311
(CHMSL) A jumper harness for an electric trailer brake controller and a trailer battery feed fuse may be included with this trailering package. See "Instrument Panel Jumper Wiring Harness" later in this section. If you need to tow a light-duty trailer with a standard four-way, round pin connector - 2004 Hummer H2 | Owner's Manual - Page 312
part of the heavy-duty trailer wiring package. {CAUTION: Be sure to use only the correct trailer brake harness, the one intended for use on your vehicle. If you use brake controller and includes a trailer battery feed fuse. It should be installed by your dealer or a qualified service center. 4-86 - 2004 Hummer H2 | Owner's Manual - Page 313
Four-Wire Harness Adapter This adapter may be included with your vehicle as part of the heavy-duty trailer wiring package. Use this adapter to connect a standard four-way round pin connector to the seven-wire harness on your vehicle. Connect the adapter with the tab pointing - 2004 Hummer H2 | Owner's Manual - Page 314
✍ NOTES 4-88 - 2004 Hummer H2 | Owner's Manual - Page 315
Countries ...5-7 Filling Your Tank ...5-7 Filling a Portable Fuel Container ...5-9 Checking Things Under the Hood ...5-10 Hood Release ...5-10 Engine Compartment Overview ...5-12 Engine Oil ...5-14 Engine Air Cleaner/Filter ...5-19 Automatic Transmission Fluid ...5-21 Engine Coolant ...5-24 Coolant - 2004 Hummer H2 | Owner's Manual - Page 316
...5-101 Vehicle Identification Number (VIN) ...5-101 Service Parts Identification Label ...5-101 Electrical System ...5-101 Add ...5-71 Uniform Tire Quality Grading ...5-72 Wheel Alignment and Tire Balance ...5-73 Wheel Replacement ...5-74 Tire Chains ...5-75 Accessory Inflator ...5-76 If a Tire Goes - 2004 Hummer H2 | Owner's Manual - Page 317
be happy with it. We hope you will go to your dealer for all your service needs. You will get genuine GM parts and GM-trained and supported service people. We hope you will want to keep your GM vehicle all GM. Genuine GM parts have one of these marks: California Proposition 65 Warning Most - 2004 Hummer H2 | Owner's Manual - Page 318
to use the proper service manual. It tells you much more about how to service your vehicle than this manual can. To order the proper service manual, see Service Publications Ordering Information on page 7-11. Your vehicle may have an air bag system. If it does, see Servicing Your Air Bag-Equipped - 2004 Hummer H2 | Owner's Manual - Page 319
affect the airflow control system performance compared to other gasoline. In Canada, look for the "Auto Makers' Choice" label on the pump. Fuel problem exists or that a higher-octane fuel is necessary. If you are using 87 octane or higher-octane fuel and hear heavy knocking, your engine needs service - 2004 Hummer H2 | Owner's Manual - Page 320
to your authorized GM dealer for diagnosis. If it is determined that the condition is caused by the type of fuel used, repairs may not be covered by your warranty. valves clean. If your vehicle experiences problems due to dirty injectors or valves, try a different brand of gasoline. Gasolines - 2004 Hummer H2 | Owner's Manual - Page 321
may be hard to find. Never use leaded gasoline or any other fuel not recommended in the previous text on fuel. Costly repairs caused by use of improper fuel would not be covered by your warranty. To check the fuel availability, ask an auto club, or contact a major oil company that does business in - 2004 Hummer H2 | Owner's Manual - Page 322
cap is located on the driver's side of the vehicle. Some vehicles may be equipped with a locking fuel cap. Use the fuel cap key to unlock the fuel cap. If you ever need a replacement key, your dealer can help you get one. Turn the fuel cap slowly to the left (counterclockwise) to remove it. While - 2004 Hummer H2 | Owner's Manual - Page 323
not fit properly. This may cause your malfunction indicator lamp to light and may damage your fuel tank and emissions system. See Malfunction Indicator Lamp on page 3-38. Filling a Portable Fuel Container {CAUTION: Never fill a portable fuel container while it is in your vehicle. Static electricity - 2004 Hummer H2 | Owner's Manual - Page 324
can get on hot engine parts and start a fire. These include liquids like fuel, oil, coolant, brake fluid, windshield washer and other fluids, and plastic or rubber. You or others could be burned. Be careful not to drop or spill things that will burn onto a hot engine. 1. Release both hood side latches - 2004 Hummer H2 | Owner's Manual - Page 325
to the lower left of the steering wheel. 3. Then go to the front of the vehicle and pull the assist handles toward you to lift the hood. 4. Pull the hood open until it is supported by the cables. Before closing the handles to be sure that the hood is latched. 3. Latch both hood side latches. 5-11 - 2004 Hummer H2 | Owner's Manual - Page 326
Engine Compartment Overview When you open the hood on the VORTEC™ 6000 V8 engine you will see the following: 5-12 - 2004 Hummer H2 | Owner's Manual - Page 327
/Filter. See Engine Air Cleaner/Filter on page 5-19. C. Windshield Washer Fluid Reservoir. See Windshield Washer Fluid on page 5-37. D. Engine Oil Fill. See Engine Oil on page 5-14. E. Engine Oil Dipstick. See Engine Oil on page 5-14. F. Automatic Transmission Dipstick. See Automatic Transmission - 2004 Hummer H2 | Owner's Manual - Page 328
again, keeping the tip down, and check the level. Checking Engine Oil It is a good idea to check your engine oil every time you get fuel. In order to get an accurate reading, the oil must be warm and the vehicle must be on level ground. 5-14 - 2004 Hummer H2 | Owner's Manual - Page 329
the dipstick, then you will need to add at least one quart of oil. But you must use the right kind. This section explains what kind of oil to use. For engine oil crankcase capacity, see Capacities and Specifications on page 5-111. Notice: Do not add too much oil. If your engine has - 2004 Hummer H2 | Owner's Manual - Page 330
5W-30 is not available, you may use SAE 10W-30. These numbers on an oil container show its viscosity, or thickness. Do not use other viscosity oils such as SAE 20W-50 for this information on the oil container, and use only those oils that are identified as meeting GM Standard GM6094M and have the - 2004 Hummer H2 | Owner's Manual - Page 331
within the next two times you stop for fuel. It is possible that, if you are driving under the best conditions, the oil life system may not indicate must be reset. Your dealer has GM-trained service people who will perform this work using genuine GM parts and reset the system. It is also important - 2004 Hummer H2 | Owner's Manual - Page 332
or do the following: 1. Turn the ignition key to RUN with the engine off. 2. Fully press and release the accelerator pedal slowly three times within five a place that collects used oil. If you have a problem properly disposing of your used oil, ask your dealer, a service station or a local recycling center for - 2004 Hummer H2 | Owner's Manual - Page 333
, inspect the filter at each engine oil change and replace it earlier as required. How to Inspect To inspect the air cleaner/filter, remove it from the vehicle and lightly shake the it to release loose dust and dirt. If the air cleaner/filter remains caked with dirt, a new one is required. 5-19 - 2004 Hummer H2 | Owner's Manual - Page 334
Maintenance Schedule to determine when to replace the engine air cleaner/filter. See Owner Checks and Services on page 6-9. {CAUTION: Operating the engine with the air cleaner/filter off can cause you or others to be burned. The air cleaner not only cleans the air, it helps to stop flame if the engine - 2004 Hummer H2 | Owner's Manual - Page 335
dealership service department. If you do it yourself, be sure to follow all the instructions here, or you could get a false reading on the dipstick. Notice: Too much or too little fluid can damage your transmission. Too much can mean that some of the fluid could come out and fall on hot engine part or - 2004 Hummer H2 | Owner's Manual - Page 336
warmed more with the engine off, but this is used only as a reference. Let the engine run you must check the fluid hot before adding fluid. Checking the fluid hot will give you a more transmission dipstick handle with the graphic is located at the rear of the engine compartment, on the passenger's side - 2004 Hummer H2 | Owner's Manual - Page 337
the transmission fluid while it is hot. (A cold check is used only as a reference.) If the fluid level is low, add only enough of the proper fluid to bring the level up to the HOT area for a hot check. It doesn't take much fluid, generally less than one pint (0.5 L). Don't overfill. 3. Check both sides - 2004 Hummer H2 | Owner's Manual - Page 338
problem with engine overheating, see Engine Overheating on page 5-27. A 50/50 mixture of clean, drinkable water and DEX-COOL® coolant will: Notice: Using repairs would not be covered by your warranty. Always use DEX-COOL®(silicate-free) coolant in your vehicle. What to Use Use parts. If you use - 2004 Hummer H2 | Owner's Manual - Page 339
DEX-COOL® coolant. Notice: If you use an improper coolant mixture, your engine could overheat and be badly damaged. The repair cost would not be covered by your warranty. Too much water in the mixture can freeze and crack the engine, radiator, heater core and other parts. If you have to add coolant - 2004 Hummer H2 | Owner's Manual - Page 340
The coolant surge tank is located in the engine compartment on the passenger's side of the vehicle. {CAUTION: Turning the surge tank pressure cap when the engine and radiator are hot can allow steam and scalding liquids to blow out and burn you badly. Never turn the surge tank pressure cap - even - 2004 Hummer H2 | Owner's Manual - Page 341
and tightly secured. {CAUTION: You can be burned if you spill coolant on hot engine parts. Coolant contains ethylene glycol, and it will burn if the engine parts are hot enough. Do not spill coolant on a hot engine. When replacing the pressure cap, make sure it is hand-tight. Engine Overheating - 2004 Hummer H2 | Owner's Manual - Page 342
Overheated Engine Protection Operating Mode If an overheated engine condition exists and the REDUCED ENGINE POWER message is displayed, an overheat protection mode which alternates firing groups of cylinders helps prevent engine damage. In this mode, you will notice a loss in power and engine - 2004 Hummer H2 | Owner's Manual - Page 343
condition, can indicate a serious problem. If you get an engine overheat, but see or hear no steam, the problem may not be too serious. Sometimes the engine can get a little too hot when you: Climb a long hill on a hot day. Stop after high-speed driving. Idle for long periods in traffic. Tow - 2004 Hummer H2 | Owner's Manual - Page 344
, try this for a minute or so: 1. Turn on your heater to full hot at the highest fan speed and open the window as necessary. 2. If you're previously in this section. You may decide not to lift the hood but to get service help right away. Cooling System When you decide it's safe to lift the hood, - 2004 Hummer H2 | Owner's Manual - Page 345
miles (50 000 km) or 24 months, whichever occurs first. Any repairs would not be covered by your warranty. Always use DEX-COOL®(silicate-free) coolant in your vehicle. {CAUTION: Heater and radiator hoses, and other engine parts, can be very hot. Do not touch them. If you do, you can be burned. Do - 2004 Hummer H2 | Owner's Manual - Page 346
to the Coolant Surge Tank If you haven't found a problem yet, check to see if coolant is visible in you ever have to turn the pressure cap. {CAUTION: Steam and scalding liquids from a hot cooling system can blow out and burn you badly. They are under pressure, and if you turn the radiator pressure - 2004 Hummer H2 | Owner's Manual - Page 347
. Notice: In cold weather, water can freeze and crack the engine, radiator, heater core and other parts. Use the recommended coolant and the proper coolant mixture. {CAUTION: You can be burned if you spill coolant on hot engine parts. Coolant contains ethylene glycol and it will burn if the engine - 2004 Hummer H2 | Owner's Manual - Page 348
3. Then keep turning the pressure cap slowly, and remove it. 4. Then fill the coolant surge tank with the proper mixture, to the FULL COLD mark. 5-34 - 2004 Hummer H2 | Owner's Manual - Page 349
, the fan spins faster to provide more air to cool the engine. In most everyday driving conditions, the fan is spinning slower and the clutch is not fully engaged. This improves fuel economy and reduces fan noise. Under heavy vehicle loading, trailer towing and/or high outside temperatures, the fan - 2004 Hummer H2 | Owner's Manual - Page 350
Fluid How to Check Power Steering Fluid Turn the key off, let the engine compartment cool down, Locate the suspect there is a leak in the system or you hear an unusual noise. A fluid loss in this system could indicate a problem. Have the system inspected and repaired. See Engine Compartment Overview - 2004 Hummer H2 | Owner's Manual - Page 351
in the engine compartment on the passenger's side of the vehicle. See Engine Compartment Overview on page 5-12 for reservoir location. Windshield Washer Fluid What to Use When you need windshield washer fluid, be sure to read the manufacturer's instructions before use. If you will be operating your - 2004 Hummer H2 | Owner's Manual - Page 352
the location of the reservoir. • When using concentrated washer fluid, follow the manufacturer's instructions for adding water. • Do not mix water with ready-to-use washer fluid. Water can cause the solution to freeze and damage your washer fluid tank and other parts of the washer system. Also, water - 2004 Hummer H2 | Owner's Manual - Page 353
If it is not, have your brake system checked to see if there is a leak. {CAUTION: If you have too much brake fluid, it can spill on the engine. The fluid will burn if the engine is hot enough. You or others could be burned, and your vehicle could be damaged. Add - 2004 Hummer H2 | Owner's Manual - Page 354
fluid reservoir cap and the area around the cap before removing it. This will help keep dirt from entering the reservoir. Notice: • Using the wrong fluid can badly damage brake system parts. For example, just a few drops of mineral-based oil, such as engine oil, in your brake system can damage brake - 2004 Hummer H2 | Owner's Manual - Page 355
brake repair. Some driving conditions or climates may cause a brake squeal when the brakes are first applied or lightly applied. This does not mean something is wrong with your brakes. Properly torqued wheel nuts accident. When you hear the brake wear warning sound, have your vehicle serviced. 5-41 - 2004 Hummer H2 | Owner's Manual - Page 356
Battery posts, terminals and related accessories contain lead and lead compounds, chemicals are wrong for your vehicle, the balance between your front and rear brakes can change - for the worse. parts. Vehicle Storage If you are not going to drive your vehicle for 25 days or more, remove the black, - 2004 Hummer H2 | Owner's Manual - Page 357
with a negative ground system. Notice: If the other vehicle's system is not a 12-volt system with a negative ground, both vehicles can be damaged. Only use vehicles with 12-volt systems with negative grounds to jump start your vehicle. Jump Starting If your battery has run down, you may want to - 2004 Hummer H2 | Owner's Manual - Page 358
automatic transmission in PARK (P) or a manual transmission in NEUTRAL before setting the parking brake. Notice: If you leave your radio or other accessories on use these remote terminals instead of the terminals on the battery. The remote positive (+) terminal is located near the engine accessory - 2004 Hummer H2 | Owner's Manual - Page 359
(−) terminal is located on the engine accessory drive bracket and is marked GND. {CAUTION: Using a match near a battery can cause battery gas to explode. People have been hurt doing this, and some have been blinded. Use a flashlight if you need more light. Be sure the battery has enough water - 2004 Hummer H2 | Owner's Manual - Page 360
positive (+) to negative (−) or you'll get a short that would damage the battery and maybe other parts too. 6. Connect the red positive (+) cable to the positive (+) terminal of the dead battery. Use a remote positive (+) terminal if the vehicle has one. {CAUTION: Fans or other moving engine - 2004 Hummer H2 | Owner's Manual - Page 361
of the good battery. Use a remote negative (−) terminal if the vehicle has one. Your vehicle's remote negative (−) terminal is marked GND. 9. Connect the other end of the negative (−) cable at least 18 inches (45 cm) away from the dead battery, but not near engine parts that move. Don't let - 2004 Hummer H2 | Owner's Manual - Page 362
cover to its original position. All-Wheel Drive Transfer Case It is not necessary to regularly check transfer case fluid unless you suspect there is a leak or you hear an unusual noise. A fluid loss could indicate a problem. Have it inspected and repaired. Refer to the Maintenance Schedule to - 2004 Hummer H2 | Owner's Manual - Page 363
should be on a level surface. 2. Add fluid if necessary. Refer to the Maintenance Schedule to determine what kind of lubricant to use. See Recommended Fluids and Lubricants on page 6-12. 3. Reinstall the filler plug. Use care not to overtighten the filler plug. A. Filler Plug B. Drain Plug 5-49 - 2004 Hummer H2 | Owner's Manual - Page 364
suspect there is a leak or you hear an unusual noise. A fluid loss could indicate a problem. Have it inspected and repaired. To get an to reach the proper level. What to Use Refer to the Maintenance Schedule to determine what kind of lubricant to use. See Recommended Fluids and Lubricants on page - 2004 Hummer H2 | Owner's Manual - Page 365
front axle fluid unless you suspect there is a leak or you hear an unusual noise. A fluid loss could indicate a problem. Have it inspected and repaired filler plug hole. What to Use Refer to the Maintenance Schedule to determine what kind of lubricant to use. See Recommended Fluids and Lubricants on - 2004 Hummer H2 | Owner's Manual - Page 366
on page 5-58 for the proper type of bulbs to use. For any bulb changing procedure not listed in this section follow the instructions on the bulb package. Headlamps 1. Open the hood as described earlier under Hood Release on page 5-10 and locate the affected headlamp on the inner front portion of - 2004 Hummer H2 | Owner's Manual - Page 367
under Hood Release on page 5-10 and locate the affected lamp. 2. Turn the bulb socket counterclockwise and remove it from the lamp housing. 5. Push the new bulb/socket into the headlamp assembly making sure to align the splines on the bulb/socket with the splines in the headlamp housing. Use care - 2004 Hummer H2 | Owner's Manual - Page 368
counterclockwise and remove it from the lamp housing. Daytime Running Lamps 1. Locate the lamp assembly behind the front bumper. It is easiest to come in from the side of the vehicle through the wheel opening. 3. Remove the bulb from the bulb socket. 4. Put the new bulb into the bulb socket. 5. Put - 2004 Hummer H2 | Owner's Manual - Page 369
Lamps Corner Roof Marker Lamps 2. Turn the socket counterclockwise to remove it and remove the old bulb. 3. Put a new bulb into the socket. 1. Remove the screw and lift off the lens. 4. Reinstall the socket into the lens and turn it clockwise to lock it into place. 5. Hook the side of the lens - 2004 Hummer H2 | Owner's Manual - Page 370
Center Roof Marker Lamps 1. Push in on the notch with a flat tool and pull the lamp out. 2. Turn the bulb socket counterclockwise . 4. Put the new bulb into the bulb socket. 5. Place the hook end of the lamp in place on one side and push the other end of the lamp down until it locks in place. 5-56 - 2004 Hummer H2 | Owner's Manual - Page 371
Center High-Mounted Stoplamp (CHMSL) If your vehicle has this component and it needs replacement, it is recommended that it be replaced as a unit by your dealer. 2. Remove the two screws from the rear lamp assembly and remove the rear lamp assembly. Taillamps A. Stoplamp B. Turn Signal Lamp C. - 2004 Hummer H2 | Owner's Manual - Page 372
the socket. Replacement Bulbs Exterior Lamp Low-Beam and High-Beam Headlamps Daytime Running Lamps (DRL) Front Turn Signal and Parking Lamps Rear Taillamp and Stoplamp Rear Turn Lamp Back-up Lamp Roof Marker Lamps Bulb Number 9007 4114K 4157K or 3157KX 3157 3157 4157 or 3157 168 5. Press a new - 2004 Hummer H2 | Owner's Manual - Page 373
Normal Maintenance Replacement Parts on page 6-14. To replace the windshield wiper blade assembly do the following: 1. Lift the wiper arm and turn the blade until it is facing away from the windshield. 2. Push the release lever and slide the wiper assembly toward the driver's side of the vehicle - 2004 Hummer H2 | Owner's Manual - Page 374
service, see your GM Warranty booklet for details. For additional information refer to the tire manufacturer's booklet included with your vehicle's Owner's Manual an air-out and a serious accident. See "Loading Your Vehicle" in the Index. CAUTION: (Continued) • • Tire Sidewall Labeling Useful - 2004 Hummer H2 | Owner's Manual - Page 375
used to define a particular tire's width, height, aspect ratio, construction type and service description. See the "Tire Size Code" illustration later in this section for more detail. (B) Tire Performance Criteria Specification (TPC Spec onto both sides of the tire, although only one side may - 2004 Hummer H2 | Owner's Manual - Page 376
resistance. For more information, see Uniform Tire Quality Grading on page 5-72. (G) Maximum Cold Inflation Load Limit: Maximum load that can be carried and the maximum pressure needed to support that load. For information on recommended tire pressure see Inflation - Tire Pressure on page 5-68 and - 2004 Hummer H2 | Owner's Manual - Page 377
, although only one side may have the date of manufacture. (F) Tire Ply Material: The type of cord and number of plies in the sidewall and under the tread. (G) Single Tire Maximum Load: Maximum load that can be carried and the maximum pressure needed to support that load when used as a single. For - 2004 Hummer H2 | Owner's Manual - Page 378
show the different parts of a tire as it is wide. (D) Construction Code: A letter code is used to indicate the type of ply construction in the tire. The letter (E) Rim Diameter: Diameter of the wheel in inches. (F) Service Description: The service description indicates the load range and speed - 2004 Hummer H2 | Owner's Manual - Page 379
. Air pressure is expressed in pounds per square inch (psi) or kilopascal (kPa). Accessory Weight: This means the combined weight of optional accessories. Some examples of optional accessories are, automatic transmission, power steering, power brakes, power windows, power seats, and air conditioning - 2004 Hummer H2 | Owner's Manual - Page 380
page 4-67. Intended Outboard Sidewall: The side of an asymmetrical tire, that must always face outward when mounted on a vehicle. Kilopascal (kPa): The metric unit for air pressure. There are 6.9 kPa's to one psi. Light Truck (LT-Metric) Tire: A tire used on light duty trucks and some multipurpose - 2004 Hummer H2 | Owner's Manual - Page 381
side of the tire that contains a whitewall, bears white lettering or bears manufacturer, brand and or model name molding that is higher or deeper than the same moldings on the other sidewall of the tire. Passenger (P-Metric) Tire: A tire used on passenger cars and some light A metal support for a - 2004 Hummer H2 | Owner's Manual - Page 382
or overinflation is all right. It's not. If your tires don't have enough air (underinflation), you can get the following: Too much flexing Too much heat Tire overloading Bad wear Bad handling Bad fuel economy Inflation - Tire Pressure The Certification/Tire label or Tire and Loading Information - 2004 Hummer H2 | Owner's Manual - Page 383
tire, release air by pushing on the metal stem in the center of the tire valve. Recheck the tire pressure with the tire gage. Be sure to put the valve caps back on the valve stems. They help prevent leaks by keeping out dirt and moisture. When rotating your tires, always use the correct - 2004 Hummer H2 | Owner's Manual - Page 384
or dirt on a wheel, or on the parts to which it is fastened, can make wheel nuts become loose after a time. The wheel could come off and cause an accident. When you change a wheel, remove any rust or dirt from places where the wheel attaches to the vehicle. In an emergency, you can use a cloth or - 2004 Hummer H2 | Owner's Manual - Page 385
damage that can't be repaired well because of the size or location of the damage. {CAUTION: Mixing tires could cause you to lose control while driving. If you . Using tires of different sizes may also cause damage to your vehicle. Be sure to use the same size and type tires on all wheels. Buying - 2004 Hummer H2 | Owner's Manual - Page 386
radial-ply tires with the wheels on your vehicle. snow tires, space-saver or temporary use spare tires, tires with nominal rim diameters of 10 to 12 inches (25 to 30 cm), or to some limited-production tires. While the tires available on General Motors passenger cars and light trucks may vary with - 2004 Hummer H2 | Owner's Manual - Page 387
to dissipate heat when tested under controlled conditions on a specified indoor laboratory test wheel. Sustained high temperature can cause the the Federal Motor Vehicle Safety Standard No. 109. Grades B and A represent higher levels of performance on the laboratory test wheel than the minimum - 2004 Hummer H2 | Owner's Manual - Page 388
be replaced. If the wheel leaks air, replace it (except some aluminum wheels, which can sometimes be repaired). See your dealer if any of these conditions exist. Your dealer will know the kind of wheel you need. Each new wheel should have the same load-carrying capacity, diameter, width, offset and - 2004 Hummer H2 | Owner's Manual - Page 389
the chain manufacturer's instructions. If you can hear the chains contacting your vehicle, stop and retighten them. If the contact continues, slow down until it stops. Driving too fast or spinning the wheels with chains on will damage your vehicle. {CAUTION: Putting a used wheel on your vehicle is - 2004 Hummer H2 | Owner's Manual - Page 390
flator kit is located in the spare tire cover pocket. The kit includes a hose and three nozzle adapters. To use the accessory inflator, attach the appropriate nozzle adapter to the end of the hose if required. Then attach that end of the hose to the object - 2004 Hummer H2 | Owner's Manual - Page 391
also has a built-in air pressure gage. As soon as you start to inflate an object it will automatically read the current pressure. Press and release the switch to turn the accessory inflator on. The indicator light will remain on while the inflator is running. Press and release the switch to turn the in - 2004 Hummer H2 | Owner's Manual - Page 392
likely to leak out slowly. But if you should ever have a "blowout," here are a few tips about what to expect and what to do: If a front tire fails, the flat tire will create a drag that pulls the vehicle toward that side. Take your foot off the accelerator pedal and grip the steering wheel firmly - 2004 Hummer H2 | Owner's Manual - Page 393
. CAUTION: (Continued) 4. Do not allow passengers to remain in the vehicle. 5. Put the wheel blocks at the front and rear of the tire farthest away from the one being changed. That would be the tire on the other side, at the opposite end of the vehicle. {CAUTION: Changing a tire can be dangerous - 2004 Hummer H2 | Owner's Manual - Page 394
jack and change a tire. Open the tool bag and you will find the following tools which you will use to remove the spare tire and flat tire: Removing the Spare Tire and Tools The equipment you'll need is behind and to the side of the driver's side second row seat. To remove the equipment - 2004 Hummer H2 | Owner's Manual - Page 395
Follow the instructions to remove the wheel blocks and spare tire: 1. Remove the wheel blocks used for tire changing procedure. See "Receiver Extension" under If You Are Stuck: In Sand, Mud, Ice or Snow on page 4-56. C. Tire Retainer Plate D. Nut E. Wheel Blocks 2. Place the flat end of the wheel - 2004 Hummer H2 | Owner's Manual - Page 396
loosen the nut holding the tire to the carrier. 4. Pull off the tire retainer plate and set it aside. Remove the spare tire from the wheel carrier. 5. Put the spare tire near the flat tire. Use the art and text following to finish changing a flat tire. The tools you'll be - 2004 Hummer H2 | Owner's Manual - Page 397
DOWN mark facing you. 3. Turn the ratchet counterclockwise to loosen the wheel nuts. Don't remove them yet. You will now need to jack the vehicle up using the instructions following. 4. Assemble the jack and tools as follows: Front Flat Tire: Attach the jack handle (E) with the hook end connected - 2004 Hummer H2 | Owner's Manual - Page 398
Front Flat Tire: Position the jack under the vehicle on the frame behind the flat tire where the frame sections overlap. See the graphic onto the jack handle extension (D) with the UP mark facing you. 5. Turn the ratchet (F) clockwise to raise the jack head to the lifting point. Front Position 5-84 - 2004 Hummer H2 | Owner's Manual - Page 399
jacked up is dangerous. If the vehicle slips off the jack you could be badly injured or killed. Never get under a vehicle when it is supported only by a jack. 5-85 - 2004 Hummer H2 | Owner's Manual - Page 400
help avoid personal injury and vehicle damage, be sure to fit the jack lift head into the proper location before raising the vehicle. 7. Remove all the wheel nuts and take off the flat tire. 6. Turn the ratchet clockwise to raise the vehicle. Raise the vehicle far enough off the ground so there - 2004 Hummer H2 | Owner's Manual - Page 401
on the wheel, or on the parts to which it is fastened, can make the wheel nuts become loose after a time. The wheel could come off and cause an accident. When you change a wheel, remove any rust or dirt from the places where the wheel attaches to the vehicle. In an emergency, you can use a cloth or - 2004 Hummer H2 | Owner's Manual - Page 402
end of the nuts toward the wheel. Tighten each wheel nut by hand. Then use the ratchet/wheel wrench to tighten the nuts, with the UP mark facing you, clockwise until the wheel is held against the hub. You will not be tightening the nuts fully yet. Front Position Rear Position 10. Lower the - 2004 Hummer H2 | Owner's Manual - Page 403
and rotor damage. To avoid expensive brake repairs, evenly tighten the wheel nuts in the proper sequence and to the proper torque specification. See "Capacities and Specifications" in the index for the wheel nut torque specification. 12. When you install the wheel and tire, you must also reinstall the - 2004 Hummer H2 | Owner's Manual - Page 404
Storing a Flat or Spare Tire and Tools Use the art and text following to help you Slide the flat or spare tire (A) onto the tire carrier. 2. Slide the tire retainer plate (C) into the wheel opening. Be sure that the stud attached to the tire carrier passes through the hole in the tire retainer plate - 2004 Hummer H2 | Owner's Manual - Page 405
cover onto the spare or flat tire. Follow these instructions to store the jack and tools: 1. Lower the jack completely. 2. Place the jack in the mounting bracket. 4. Place the tools in the bag. 5. Slide the securing clip over the bag and secure the bag to the floor by tightening the wingnut (B) to - 2004 Hummer H2 | Owner's Manual - Page 406
if you strike a match or get them on a hot part of the vehicle. Some are dangerous if you breathe their fumes in a closed space. When you use anything from a container to clean your vehicle, be sure to follow the manufacturer's warnings and instructions. And always open your doors or windows when - 2004 Hummer H2 | Owner's Manual - Page 407
Cleaning Vinyl Use warm water and a clean cloth. Cleaning the Inside of Your Vehicle Use a use heat to dry. • For stubborn stains, use a leather cleaner. • Never use oils, varnishes, solvent-based or abrasive cleaners, furniture polish or shoe polish on leather. • Always read the instructions - 2004 Hummer H2 | Owner's Manual - Page 408
the glass and/or cause damage to the rear window defogger and the integrated radio antenna. When cleaning the glass on your vehicle, use only a soft cloth and glass cleaner. Cleaning Interior Plastic Components Use on a mild soap and water solution on a soft cloth or sponge. Commercial cleaners may - 2004 Hummer H2 | Owner's Manual - Page 409
of Your Vehicle The paint finish on your vehicle provides beauty, depth of color, gloss retention and durability. {CAUTION: Do not bleach or dye safety belts. wash your vehicle in the direct rays of the sun. Use a car washing soap. Don't use strong soaps or chemical detergents. Be sure to rinse the - 2004 Hummer H2 | Owner's Manual - Page 410
HUMMER H2 are similar to current General Motors' full-size light duty trucks. This means a HUMMER H2 should fit in a standard car wash. But, if your vehicle has added accessories The clearcoat gives more depth and gloss to the colored basecoat. Always use waxes and polishes that are non-abrasive and - 2004 Hummer H2 | Owner's Manual - Page 411
Bright metal parts should be cleaned regularly to keep their luster. Washing with water is all that is usually needed. However, you may use chrome polish on chrome or stainless steel trim, if necessary. Use special care with aluminum trim. To avoid damaging protective trim, never use auto or chrome - 2004 Hummer H2 | Owner's Manual - Page 412
or abrasive cleaning brushes on them because you could damage the surface. Do not use chrome polish on aluminum wheels. Use chrome polish only on chrome-plated wheels but avoid any painted surface of the wheel, and buff off immediately after application. Do not take your vehicle through an automatic - 2004 Hummer H2 | Owner's Manual - Page 413
causes this, GM will repair, at no charge to the owner, the surfaces of new vehicles damaged by this fallout condition within 12 months or 12,000 miles (20 000 km) of purchase, whichever occurs first. Underbody Maintenance Chemicals used for ice and snow removal and dust control can collect on the - 2004 Hummer H2 | Owner's Manual - Page 414
Tire Cleaner Vinyl Cleaner Glass Cleaner Chrome and Wire Wheel Cleaner Finish Enhancer Usage Interior and exterior polishing cloth. Removes tar, road oil and asphalt. Use on chrome or stainless steel. Removes soil and black marks from whitewalls. Cleans vinyl tops, upholstery and convertible - 2004 Hummer H2 | Owner's Manual - Page 415
your vehicle. It appears on a plate in the front corner of the instrument panel, on the driver's side. You can see it if you look through the windshield from outside your vehicle. The VIN also appears on the Vehicle Certification and Service Parts labels and the certificates of title and registration - 2004 Hummer H2 | Owner's Manual - Page 416
res caused by electrical problems. Look at the silver-colored band inside the fuse radio or cigarette lighter - and use its fuse, if it is the correct amperage. Replace it as soon as you can. Power Windows and Other Power Options Circuit breakers protect the power windows and other power accessories - 2004 Hummer H2 | Owner's Manual - Page 417
, make sure it is of the correct amperage. Fuses RR Wiper SEO ACCY WS WPR TBC ACCY IGN 3 4WD Usage Rear Window Wiper Switch Special Equipment Option Accessory Windshield Wipers Truck Body Controller Accessory Rear Heated Seats Module Four-Wheel Drive Switch, Air Suspension Switch/Module 5-103 - 2004 Hummer H2 | Owner's Manual - Page 418
Mirror, Climate Control System Driver's Door Harness Connection Cruise Control Power Door Lock Relay (Unlock Function) Not Used Brake Switch Power Door Lock Relay (Driver's Door Unlock Function) Brake Transmission Shift Interlock, Powertrain Control Module, Transmission Truck Body Controller - 2004 Hummer H2 | Owner's Manual - Page 419
/Off-road Lamps Harness Connector Trailer Brake Wiring Upfitter (Not Used) Ride Control (Not Used) Headliner Wiring Connector 2 Body Wiring Connector Rear Defogger Relay Headliner Wiring Connector 1 Not Used Driver and Passenger Seat Module Circuit Breaker Rear Right Power Window, Passenger Door - 2004 Hummer H2 | Owner's Manual - Page 420
Underhood Fuse Block The underhood fuse block in the engine compartment is located on the driver's side of the vehicle near the battery. Lift the cover for access to the fuse/relay block. To remove fuses if you don't have a fuse extractor, - 2004 Hummer H2 | Owner's Manual - Page 421
5-107 - 2004 Hummer H2 | Owner's Manual - Page 422
Front Seats, Right Doors Front Climate Control Fan Left Bussed Electrical Center, Door Modules, Door Locks, Auxiliary Power Outlet-Rear Cargo Area and Instrument Panel Accessory Power/Trailer Wiring Brake Feed Anti-Lock Brakes Electronically Controlled Air Suspension Ignition Switch Ignition Switch - 2004 Hummer H2 | Owner's Manual - Page 423
, Air Conditioning Relay, Turn Signal/Hazard Switch, Starter Relay, Electronic Brake Controller TC2 Mode Switch Electronic Brake Controller Battery Feed Backup Lamps Trailer Wiring Powertrain Control Module, Fuel Pump Fuel Pump (Relay) Oxygen Sensors Back-up Lamps, Automatic Transmission Shift - 2004 Hummer H2 | Owner's Manual - Page 424
Compressor Relay Air Conditioning Compressor Rear Wiper/Washer Audio System Mid Bussed Electrical Center, HomeLink, Rear Heated Seats Headlamp Low Beam-Left Brake Transmission Shift Interlock System Starting System Headlamp Low Beam-Right Fuses FOG LP FOG LP HORN W/S WASH W/S WASH INFO RADIO - 2004 Hummer H2 | Owner's Manual - Page 425
0.040 inches (1.01 mm) Capacities and Specifications Capacities Application Cooling System Engine Oil with Filter English 13.0 quarts 6.0 quarts on page 5-14. Fuel Tank Air Conditioning Refrigerant R-134a 32.0 gallons 1.6 lbs. 121.0 L 0.7 kg Wheels and Tires Application Wheel Nuts Tire Pressure - 2004 Hummer H2 | Owner's Manual - Page 426
✍ NOTES 5-112 - 2004 Hummer H2 | Owner's Manual - Page 427
Section 6 Maintenance Schedule Owner Checks and Services ...6-9 At Each Fuel Fill ...6-9 At Least Once a Month ...6-10 At Least Once a Year ...6-10 Recommended Fluids and Lubricants ...6-12 Normal Maintenance Replacement Parts ...6-14 Engine Drive Belt Routing ...6-15 Maintenance Record ...6-16 - 2004 Hummer H2 | Owner's Manual - Page 428
parts and recommended fluids and lubricants as prescribed in this manual are necessary to keep your vehicle in good working condition working condition, but also helps the environment. All recommended maintenance is important. Improper vehicle maintenance can even affect the quality of the air we - 2004 Hummer H2 | Owner's Manual - Page 429
condition, see your GM Goodwrench dealer. This schedule is for vehicles that: • are driven off-road in the recommended manner. See Off-Road Driving on page 4-17. • use the recommended fuel. See Gasoline Octane on page 5-5. The services within recommended limits. You will find these limits on the - 2004 Hummer H2 | Owner's Manual - Page 430
. When your vehicle is serviced, make sure these are used. All parts should be replaced and all necessary repairs done before you or anyone else drives the vehicle. We recommend the use of genuine GM parts. Scheduled Maintenance When the CHANGE ENGINE OIL light in the Driver Information Center (DIC - 2004 Hummer H2 | Owner's Manual - Page 431
. Lubricate chassis components. See footnote #. Visually check for any leaks or damage. See footnote (j). Inspect engine air cleaner filter. If necessary, replace filter. See Engine Air Cleaner/Filter on page 5-19. An Emission Control Service. See footnote †. Rotate tires and check inflation pressures - 2004 Hummer H2 | Owner's Manual - Page 432
(kilometers) shown for each item. Additional Required Services Service and Miles (Kilometers) Inspect fuel system for damage or leaks. Inspect exhaust system for loose or damaged components. Change automatic transmission fluid and filter (severe service). See footnote (h). 25,000 (41 500) • • 50 - 2004 Hummer H2 | Owner's Manual - Page 433
Engine Air Cleaner/Filter on page 5-19. An Emission Control Service. Replace spark plugs and inspect spark plug wires. An Emission Control Service. Engine cooling system service (or every 5 years, whichever occurs first). An Emission Control Service. See footnote (i). Inspect engine accessory drive - 2004 Hummer H2 | Owner's Manual - Page 434
or limit recall liability prior to the completion of the vehicle's useful life. We, however, urge that all recommended maintenance services be performed at the indicated intervals and the maintenance be recorded. # Lubricate the front suspension, ball joints, steering linkage, transmission shift - 2004 Hummer H2 | Owner's Manual - Page 435
system and pressure cap. (j) A fluid loss in any vehicle system could indicate a problem. Have the system inspected and repaired and the fluid level checked. Add fluid if needed. Owner Checks and Services These owner checks and services should be performed at the intervals specified to help ensure the - 2004 Hummer H2 | Owner's Manual - Page 436
details. At Least Once a Year Starter Switch Check Windshield Washer Fluid Level Check Check Parking Brake on page 2-29 if necessary. Do not use the accelerator pedal, and be ready to turn off any other position, contact your GM Goodwrench dealer for service. At Least Once a Month Tire Inflation - 2004 Hummer H2 | Owner's Manual - Page 437
Transmission Shift Lock Control System Check Ignition Transmission Lock Check While parked, and with the parking brake set, try to turn the ignition key The key should come out only in LOCK. Contact your GM Goodwrench dealer if service is required. Parking Brake and Automatic Transmission Park (P) - 2004 Hummer H2 | Owner's Manual - Page 438
holding ability: With the engine running, shift to PARK (P). Then release the parking brake followed by the regular brake. Contact your GM Goodwrench dealer if service is required. Underbody Flushing Service At least every spring, use plain water to flush any corrosive materials from the underbody - 2004 Hummer H2 | Owner's Manual - Page 439
III Automatic Transfer Case Transmission Fluid. ® Usage Automatic Transmission Usage Front Axle Propshaft Spline Hood Hinges Outer Tailgate Handle Pivot Points Weatherstrip Conditioning Weatherstrip Squeaks Fluid/Lubricant Spline Lubricant, Special Lubricant (GM Part No. U.S. 12345879, in Canada - 2004 Hummer H2 | Owner's Manual - Page 440
fication can be obtained from your dealer. Part Engine Oil Filter Engine Air Cleaner/Filter Spark Plugs Fuel Filter Windsheield Wiper Blades 17.0 inches (43.0 cm) Rear Wiper Blades 11.0 inches (28.0 cm) ACDelco® Part No. PF44 - 41-985 GF626 - - GM Part No. 25010633 88944151 12571164 25121792 15706394 - 2004 Hummer H2 | Owner's Manual - Page 441
Engine Drive Belt Routing (A) Air Conditioning Compressor 6-15 - 2004 Hummer H2 | Owner's Manual - Page 442
performed in the boxes provided. See Maintenance Requirements on page 6-2 in this section. Any additional information from Owner Checks and Services on page 6-9 can be added on the following record pages. Also, you should retain all maintenance receipts. Maintenance Record Date Odometer Reading - 2004 Hummer H2 | Owner's Manual - Page 443
Maintenance Record (cont'd) Date Odometer Reading Serviced By Maintenance I or Maintenance II Services Performed 6-17 - 2004 Hummer H2 | Owner's Manual - Page 444
Maintenance Record (cont'd) Date Odometer Reading Serviced By Maintenance I or Maintenance II Services Performed 6-18 - 2004 Hummer H2 | Owner's Manual - Page 445
to the Canadian Government ...7-10 Reporting Safety Defects to General Motors ...7-10 Service Publications Ordering Information ...7-11 Customer Assistance and Information ...7-2 Customer Satisfaction Procedure ...7-2 Online Owner Center ...7-3 Customer Assistance for Text Telephone (TTY) Users - 2004 Hummer H2 | Owner's Manual - Page 446
member of dealership management. Normally, concerns can be quickly resolved at that level. If the matter has already been reviewed with the sales, service or parts manager, contact the owner of the dealership or the general manager. STEP TWO: If after contacting a member of dealership management, it - 2004 Hummer H2 | Owner's Manual - Page 447
specific vehicle, including tips and videos and an electronic version of this owner's manual. (United States only) • Keep track of your vehicle's service history and maintenance schedule. • Find GM dealers for service nationwide. • Receive special promotions and privileges only available to members - 2004 Hummer H2 | Owner's Manual - Page 448
Center. Any TTY user can communicate with HUMMER by dialing: 1-800-833-6537. (TTY users in Canada can dial 1-800-263-3830.) From U.S. Virgin Islands: 1-800-496-9994 Fax Number: 313-381-0022 Canada - Customer Assistance General Motors of Canada Limited Customer Communication Centre, 163-005 1908 - 2004 Hummer H2 | Owner's Manual - Page 449
your vehicle (hand controls, wheelchair/ scooter lifts, etc.). Roadside Assistance Program Security While You Travel 1-866-HUMMER6 (486-6376) As the proud owner of a new HUMMER vehicle, you are automatically enrolled in the HUMMER Roadside Assistance program. This value-added service is intended to - 2004 Hummer H2 | Owner's Manual - Page 450
text telephone (TTY) users, call 1-888-889-2438. HUMMER reserves the right to limit services or reimbursement to an owner or driver when, in HUMMER's judgement, the claims become excessive in frequency or type of occurrence. Roadside Assistance is not part of or included in the coverage provided by - 2004 Hummer H2 | Owner's Manual - Page 451
, and ask for instructions. If the dealer requests that you simply drop the vehicle off for service, you are urged to do so as early in the work day as possible to allow for same day repair. Courtesy Transportation HUMMER has always exemplified quality and value in its offering of motor vehicles. To - 2004 Hummer H2 | Owner's Manual - Page 452
and be supported by original receipts. Additional Program Information Courtesy Transportation is available during the Bumper-to-Bumper warranty coverage period, but it is not part of the New Vehicle Limited Warranty. A separate booklet entitled Warranty and Owner Assistance Information furnished - 2004 Hummer H2 | Owner's Manual - Page 453
modern motor vehicles, has a number of sophisticated computer systems that monitor and control several aspects of the vehicle's performance. Your vehicle uses on-board vehicle computers to monitor emission control components to optimize fuel economy, to monitor conditions for air bag deployment - 2004 Hummer H2 | Owner's Manual - Page 454
and if it finds that a safety defect exists in a group of vehicles, it may order a recall and remedy campaign. However, NHTSA cannot become involved in individual problems between you, your dealer or General Motors. To contact NHTSA, you may either call the Auto Safety Hotline toll-free at 1-800-424 - 2004 Hummer H2 | Owner's Manual - Page 455
, Transaxle, Transfer Case Unit Repair Manual This manual provides information on unit repair service procedures, adjustments, and specifications for GM transmissions, transaxles, and transfer cases. RETAIL SELL PRICE: $50.00 Owner's Information Owner publications are written specifically for - 2004 Hummer H2 | Owner's Manual - Page 456
Current and Past Model Order Forms Service Publications are available for current and past model GM vehicles. To request an order form, please specify year and model name of the vehicle. Or - 2004 Hummer H2 | Owner's Manual - Page 457
Are the Air Bags? ...1-63 Air Cleaner/Filter, Engine ...5-19 Air Conditioning ...3-23 Air Suspension ...4-74 Airbag Sensing and Diagnostic Module (SDM) ...7-9 All-Wheel Drive ...5-48 All-Wheel Drive (AWD) System ...2-25 AM ...3-90 Antenna, Fixed Mast ...3-92 Anti-lock Brake System (ABS) ...4-7 Anti - 2004 Hummer H2 | Owner's Manual - Page 458
Audio System(s) (cont.) Theft-Deterrent Feature ...Understanding Radio Reception ...Automatic Climate Control System ...Automatic Dimming Mirror Operation ...Automatic Headlamp System ...Automatic Transmission Fluid ...Operation ... 3-88 3-90 3-19 2-35 3-14 5-21 2-22 B Backing Up ...4-82 Battery - 2004 Hummer H2 | Owner's Manual - Page 459
Marker Lamps ...5-56 Chains, Tire ...5-75 CHANGE ENGINE OIL ...3-56 Charging System Light ...3-32 Check Engine Light Front Wheels ...Cleaning Exterior Lamps/Lenses ...Cleaning Fabric/Carpet ...Cleaning Glass Surfaces ...Cleaning Interior Plastic Components ...Cleaning Leather ...Cleaning the Mirror - 2004 Hummer H2 | Owner's Manual - Page 460
Panels ...5-94 Climate Control System Automatic ...3-19 Climate Controls Personalization ...3-25 Roof Marker Lamps ...5-55 Crossing Obstacles ...4-30 Cruise Control ...3-9 Cruise Control Light ...3-42 Locking ...2-9 Dinghy Towing ...4-66 Doing Your Own Service Work ...5-4 Dolly Towing ...4-66 Dome - 2004 Hummer H2 | Owner's Manual - Page 461
Position, Safety Belt ...1-22 DRIVER DOOR AJAR ...3-60 Driver Information Center (DIC) ...3-44 DIC Operation and Controlled Air Suspension System ...4-74 Emissions Inspection and Maintenance Programs ...3-40 Engine Air Cleaner/Filter ...5-19 Battery ...5-42 Check and Service Engine Soon Light - 2004 Hummer H2 | Owner's Manual - Page 462
, Safety Belt ...1-37 Exterior Lamps ...3-13 F Filter Engine Air Cleaner ...5-19 Finding a Program Type (PTY) Station ...3-66, 3-78 Finding a Station ...3-64, 3-75 Finish Care ...5-96 Finish Damage ...5-99 First Aid Kit and Tool Kit ...4-59 Fixed Mast Antenna ...3-92 Flash-to-Pass ...3-7 Flat Tire - 2004 Hummer H2 | Owner's Manual - Page 463
54 Front Turn Signal and Parking Lamps ...5-53 Halogen Bulbs ...5-52 Roof Marker Lamps Use This Manual ...ii How to Wear Safety Belts Properly ...1-21 Hydroplaning ...4-45 I If No Steam Is Coming From Your Engine ...If Steam Is Coming From Your Engine ...If the Light is Flashing ...If the Light - 2004 Hummer H2 | Owner's Manual - Page 464
Liftgate ...2-13 Light Air Bag Off ...3-30 Air Bag Readiness ...3-28 Anti-Lock Brake System Warning ...3-34 Brake System Warning ...3-33 Charging System ...3-32 Cruise Control ...3-42 Low Fuel Warning ...3-43 Malfunction Indicator ...3-38 Safety Belt Reminder ...3-28 Security ...3-42 Tow/Haul Mode - 2004 Hummer H2 | Owner's Manual - Page 465
Maintenance Replacement Parts ...6-14 Owner Checks and Services ...6-9 Recommended Fluids and Lubricants ...6-12 Scheduled Maintenance ...6-4 Using Your ...6-3 Your Vehicle and the Environment ...6-2 Maintenance When Trailer Towing ...4-84 Making Turns ...4-82 Malfunction Indicator Light ...3-38 - 2004 Hummer H2 | Owner's Manual - Page 466
Owner Center ...7-3 OnStar® Personal Calling ...2-41 OnStar® Services ...2-40 OnStar® Steering Wheel Controls ...2-41 OnStar® System ...2-40 Other Warning Devices ...3-5 Outlet Adjustment ...3-25 Outside Automatic Dimming Mirror with Curb View Assist ...2-39 Convex Mirror ...2-38 Heated Mirrors - 2004 Hummer H2 | Owner's Manual - Page 467
Safety Belts ...1-21 R Radio Data System (RDS) ...3-66, Radio Messages ...Radios ...Care of Your ...1-8 Rear Safety Belt Comfort Guides ...1-34 Rear Seat Armrest ...2-49 Rear Seat Audio Controls ...3-87 Rear Seat Audio Lubricants ...6-12 Recreational Vehicle Towing ...4-65 REDUCED ENGINE POWER - 2004 Hummer H2 | Owner's Manual - Page 468
95 Driver Position ...1-22 How to Wear Safety Belts Properly ...1-21 Questions and Answers About Safety Belts ...1-21 Rear Safety Belt Comfort Guides for Children and Small Adults ...1-34 Rear Seat Passengers ...1-30 Right Front Passenger Position ...1-30 Safety Belt Extender ...1-37 Safety Belt Use - 2004 Hummer H2 | Owner's Manual - Page 469
Own Work ...5-4 Engine Soon Light ...3-38 Publications Ordering Information ...7-11 SERVICE 4WD ...3-58 SERVICE AIR BAG ...3-58 SERVICE AIR SUSPENSION ...3-58 SERVICE BRAKE SYSTEM ...3-58 Service Bulletins ...7-11 Service Manuals ...7-11 Servicing Your Air Bag-Equipped Vehicle ...1-72 Setting Preset - 2004 Hummer H2 | Owner's Manual - Page 470
...2-25 Tow/Haul Mode Light ...3-42 Towing Recreational Vehicle ...4-65 Towing a Trailer ...4-75 Your Vehicle ...4-65 Traction Control System (TCS) ...4-9 Off Light ...3-35 TRACTION ACTIVE ...3-59 Trailer Recommendations ...4-75 Trailer Brakes ...4-81 Trailer Wiring Harness ...4-84 TRANS HOT IDLE - 2004 Hummer H2 | Owner's Manual - Page 471
...7-4 Used Replacement Wheels ...5-75 Using HomeLink® ...2-44 Using Song List Mode ...3-84 Using the Recovery Loops ...4-57 Vehicle (cont.) Loading ...4-67 Symbols ...iv Vehicle Data Collection and Event Data Records ...7-9 Vehicle Identification Number (VIN) ...5-101 Service Parts Identi - 2004 Hummer H2 | Owner's Manual - Page 472
Wheels Alignment and Tire Balance ...Replacement ...When to Add Engine Oil ...When to Change Engine Oil (GM Oil Life System) ...When to Check Lubricant ...When to
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Seats and Restraint Systems
...........................
1-1
Front Seats
...............................................
1-2
Rear Seats
...............................................
1-7
Safety Belts
.............................................
1-16
Child Restraints
.......................................
1-38
Air Bag System
.......................................
1-61
Restraint System Check
............................
1-73
Features and Controls
.....................................
2-1
Keys
........................................................
2-2
Doors and Locks
.......................................
2-7
Windows
.................................................
2-14
Theft-Deterrent Systems
............................
2-16
Starting and Operating Your Vehicle
...........
2-18
Mirrors
....................................................
2-34
OnStar
®
System
......................................
2-40
HomeLink
®
Transmitter
.............................
2-42
Storage Areas
.........................................
2-45
Sunroof
..................................................
2-50
Vehicle Personalization
.............................
2-51
Instrument Panel
.............................................
3-1
Instrument Panel Overview
..........................
3-2
Climate Controls
......................................
3-19
Warning Lights, Gages, and Indicators
........
3-26
Driver Information Center (DIC)
..................
3-44
Audio System(s)
.......................................
3-62
Driving Your Vehicle
.......................................
4-1
Your Driving, the Road, and Your Vehicle
.....
4-2
Towing
...................................................
4-65
Service and Appearance Care
..........................
5-1
Service
.....................................................
5-3
Fuel
.........................................................
5-5
Checking Things Under the Hood
...............
5-10
All-Wheel Drive
........................................
5-48
Rear Axle
...............................................
5-50
Front Axle
...............................................
5-51
Bulb Replacement
....................................
5-52
Windshield Wiper Blade Replacement
.........
5-59
Tires
......................................................
5-60
Appearance Care
.....................................
5-92
Vehicle Identification
...............................
5-101
Electrical System
....................................
5-101
Capacities and Specifications
...................
5-111
Maintenance Schedule
.....................................
6-1
Maintenance Schedule
................................
6-2
Customer Assistance and Information
..............
7-1
Customer Assistance and Information
...........
7-2
Reporting Safety Defects
...........................
7-10
Index
................................................................
1
2004 HUMMER H2 Owner Manual
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