2008 GMC Envoy Owner's Manual
2008 GMC Envoy Manual
2008 GMC Envoy manual content summary:
- 2008 GMC Envoy | Owner's Manual - Page 1
Climate Controls ...3-21 Warning Lights, Gages, and Indicators ...3-30 Driver Information Center (DIC) ...3-49 Audio System(s) ...3-65 M Driving Your Vehicle ...4-1 Your Driving, the Road, and Your Vehicle ...4-2 Towing ...4-40 Service and Appearance Care ...5-1 Service ...5-3 Fuel ...5-5 Checking - 2008 GMC Envoy | Owner's Manual - Page 2
Emblem and the names ENVOY, and DENALI are registered trademarks of General Motors Corporation. This manual includes the latest information at the time it was printed. We reserve the right to make changes after that time without further notice. For vehicles first sold in Canada, substitute the name - 2008 GMC Envoy | Owner's Manual - Page 3
Using this Manual Many people read the owner manual from beginning to end when they first receive their new vehicle to learn about the vehicle's features and controls. Pictures and words work together to explain things. {CAUTION: These mean there is something that could hurt you or other people. We - 2008 GMC Envoy | Owner's Manual - Page 4
not be covered by your vehicle's warranty, and it could be costly. The notice tells what to do to help avoid the damage. When you read other manuals, you might see CAUTION and NOTICE warnings in different colors or in different words. There are also warning labels on the vehicle which use the same - 2008 GMC Envoy | Owner's Manual - Page 5
61 Servicing Your Airbag-Equipped Vehicle ...1-66 Adding Equipment to Your Airbag-Equipped Vehicle ...1-66 Restraint System Check ...1-68 Checking the Restraint Systems ...1-68 Replacing Restraint System Parts After a Crash ...1-69 Front Seats ...1-2 Manual Seats ...1-2 Power Seats ...1-3 Manual - 2008 GMC Envoy | Owner's Manual - Page 6
Manual Seats {CAUTION: You can lose control of the vehicle if you try to adjust a manual driver's seat while the vehicle is moving. The sudden movement could startle and confuse you, or make you push a pedal when you do not want to. Adjust the driver's seat only when the vehicle is not moving. Lift - 2008 GMC Envoy | Owner's Manual - Page 7
Reclining Seatbacks on page 1-7. Manual Lumbar On vehicles with this feature, the knob is located on the outboard side of the driver's seat. To adjust the seat: • Move the seat forward or rearward using the horizontal control. • Raise or lower the front of the seat cushion using the front of the - 2008 GMC Envoy | Owner's Manual - Page 8
outboard side of the seat. Heated Seats Your vehicle may have heated front seats. The buttons used to control this feature are located on the front door armrests. The engine must be running for the heated seat feature to work. To increase or decrease support, hold the control forward or rearward - 2008 GMC Envoy | Owner's Manual - Page 9
adjustable pedals positions. 1-5 Memory Seat, Mirrors, and Pedals If your vehicle has this feature, the controls for the memory function are located on the driver's door. These buttons are used to program and recall memory settings for the driver's seating position, both outside mirror positions - 2008 GMC Envoy | Owner's Manual - Page 10
for the selected button 1 or 2. • Press the easy exit seat button on the memory control while the vehicle is in PARK (P). The seat will move to the stored exit position. • Or, if the easy exit seat feature is activated in the Driver Information Center (DIC), removing the key from the ignition will - 2008 GMC Envoy | Owner's Manual - Page 11
be sure it is locked. If the seats have manual reclining seatbacks, the lever used to operate them is located on the outboard side of the seat(s). {CAUTION: You can lose control of the vehicle if you try to adjust a manual driver's seat while the vehicle is moving. The sudden movement could startle - 2008 GMC Envoy | Owner's Manual - Page 12
seats have power reclining seatbacks, use the vertical power seat control located on the outboard side of the seat(s). To recline the seatback, do the following: 1. Lift seatback, press the control toward the rear of the vehicle. • To raise the seatback, press the control toward the front of the - 2008 GMC Envoy | Owner's Manual - Page 13
abdomen. The belt forces would be there, not at your pelvic bones. This could cause serious internal injuries. For proper protection when the vehicle is in motion, have the seatback upright. Then sit well back in the seat and wear your safety belt properly. Do not have a seatback reclined if your - 2008 GMC Envoy | Owner's Manual - Page 14
Head Restraints Pull the head restraint up to raise it. To lower the head restraint, press the button, located on the top of the seatback, and push the head restraint down. Adjust the head restraint so that the top of the restraint is at the same height as the top of the occupant's head. This - 2008 GMC Envoy | Owner's Manual - Page 15
Rear Seats Rear Seat Operation Your vehicle has flip and fold second row seats which provide additional cargo space. To flip and fold the seat(s), do the following: Notice: Folding a rear seat with the safety belts still fastened may cause damage to the seat or the safety belts. Always unbuckle the - 2008 GMC Envoy | Owner's Manual - Page 16
the seatback to be sure it is locked. 1. Lift the seatback until it locks into the upright position. Push and pull on the seatback to make sure it is locked. 2. Return the head restraints to the upright position by reaching behind the seat and pulling it forward until it locks into place - 2008 GMC Envoy | Owner's Manual - Page 17
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 should not do with safety belts. {CAUTION: It is extremely dangerous to ride in a cargo area, inside or outside of a vehicle. In a collision, people riding in these - 2008 GMC Envoy | Owner's Manual - Page 18
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 is just a seat on wheels. 1-14 - 2008 GMC Envoy | Owner's Manual - Page 19
Get it up to speed. Then stop the vehicle. The rider does not stop. The person keeps going until stopped by something. In a real vehicle, it could be the windshield... 1-15 - 2008 GMC Envoy | Owner's Manual - Page 20
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 is why safety belts make such good sense. 1-16 - 2008 GMC Envoy | Owner's Manual - Page 21
hurt. Being a good driver does not protect you from things beyond your control, such as bad drivers. Most accidents occur within 25 miles (40 km) down. Q: If my vehicle has airbags, why should I have to wear safety belts? A: Airbags are supplemental systems only; so they work with safety belts - - 2008 GMC Envoy | Owner's Manual - Page 22
rules for smaller children and babies. If a child will be riding in your vehicle, see Older Children on page 1-32 or Infants and Young Children on page 1- should go over the shoulder and across the chest. These parts of the body are best able to take belt restraining forces. The shoulder belt locks if - 2008 GMC Envoy | Owner's Manual - Page 23
your shoulder belt is too loose. In a crash, you would move forward too much, which could increase injury. The shoulder belt should fit snugly against your body. A: The shoulder belt is too loose. It will not give as much protection this way. 1-19 - 2008 GMC Envoy | Owner's Manual - Page 24
Q: What is wrong with this? {CAUTION: You can be seriously hurt if your lap belt is too loose. In a crash, you could slide under the lap belt and apply force on your abdomen. This could cause serious or even fatal injuries. The lap belt should be worn low and snug on the hips, just touching the - 2008 GMC Envoy | Owner's Manual - Page 25
Q: What is 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 on the pelvic bones. This could cause serious internal injuries. Always buckle your belt - 2008 GMC Envoy | Owner's Manual - Page 26
Q: What is 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 on the abdomen, not on the pelvic bones, and that could cause serious or - 2008 GMC Envoy | Owner's Manual - Page 27
Q: What is 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 - 2008 GMC Envoy | Owner's Manual - Page 28
wearing the lap-shoulder belt properly. In a crash, you would not be restrained by the shoulder belt. Your body could move too far forward increasing the chance of head and neck injury. You might also slide under the lap over the shoulder and across the chest. A: The belt is behind the body. 1-24 - 2008 GMC Envoy | Owner's Manual - Page 29
a crash, you would not 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/retailer to fix it. A: The belt is twisted across the body. 1-25 - 2008 GMC Envoy | Owner's Manual - Page 30
the child restraint locking feature. If this happens, just let the belt go back all the way and start again. Engaging the child restraint locking feature may affect the passenger sensing system. See Passenger Sensing System on page 1-61. 3. Push the latch plate into the buckle until it clicks - 2008 GMC Envoy | Owner's Manual - Page 31
the lap part tight, pull up on the shoulder belt. It may be necessary to pull stitching on the safety belt through the latch plate to fully tighten the lap belt on smaller occupants. To unlatch the belt, push the button on the buckle. The belt should go back out of the - 2008 GMC Envoy | Owner's Manual - Page 32
event. Pretensioners work only once. If they activate in a crash, you will need to get new ones, and probably other new parts for your safety belt system. See Replacing Restraint System Parts After a Crash on page 1-69. Rear Safety Belt Comfort Guides Rear shoulder belt comfort guides may provide - 2008 GMC Envoy | Owner's Manual - Page 33
2. Place the guide over the belt and insert the two edges of the belt into the slots of the guide. 3. Be sure that the belt is not twisted and it lies flat. The elastic cord must be under the belt and the guide on top. 1-29 - 2008 GMC Envoy | Owner's Manual - Page 34
belt should go over the shoulder and across the chest. These parts of the body are best able to take belt restraining forces. 4. Buckle, guide, squeeze the belt edges together so that you can take them out of the guide. Slide the guide back onto its storage clip located between the interior body - 2008 GMC Envoy | Owner's Manual - Page 35
If the vehicle's safety belt will fasten around you, you should use it. use it, and use it only for the seat it is made to fit. The extender has been designed for adults. Never use it for securing child seats. To wear it, attach it to the regular safety belt. For more information, see the instruction - 2008 GMC Envoy | Owner's Manual - Page 36
Child Restraints Older Children The manufacturer's instructions that come with the booster seat state the weight and height limitations for that booster. Use a booster seat with a lap-shoulder belt until the child passes the below fit test: • Sit all the way back on the seat. Do the knees bend at - 2008 GMC Envoy | Owner's Manual - Page 37
injuries in a crash. Also see "Rear Safety Belt Comfort Guides" under Lap-Shoulder Belt on page 1-26. According to accident seating positions. In a crash, children 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 - 2008 GMC Envoy | Owner's Manual - Page 38
{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 child. In a crash, the child would not be restrained by the shoulder belt. The child might slide under the lap belt. The - 2008 GMC Envoy | Owner's Manual - Page 39
and size of the traveler changes the need, for everyone, to use safety restraints. In fact, the law in every state in the United States and in every Canadian province says children up to some age must be restrained while in a vehicle. {CAUTION: People should never hold an infant in their arms - 2008 GMC Envoy | Owner's Manual - Page 40
are purchased by the vehicle's owner, are available in four basic types. Selection of a particular restraint should take into consideration not only the child's weight, height, and age but also whether or not the restraint will be compatible with the motor vehicle in which it will be used. 1-36 - 2008 GMC Envoy | Owner's Manual - Page 41
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 addition, there are many kinds of restraints available for children with special needs. {CAUTION: The body - 2008 GMC Envoy | Owner's Manual - Page 42
infant positioned in the restraint. A forward-facing child seat (B) provides restraint for the child's body with the harness. A booster seat (C-D) is a child restraint designed to improve the fit of the vehicle's safety belt system. A booster seat can also help a child to see out the window. 1-38 - 2008 GMC Envoy | Owner's Manual - Page 43
using the vehicle's safety belt or LATCH system, following the instructions that came with that restraint, and also the instructions in this manual. To help reduce the chance of injury, the child restraint must be secured in the vehicle. Child restraint systems must be secured in vehicle seats - 2008 GMC Envoy | Owner's Manual - Page 44
child restraint in a rear seat. See Passenger Sensing System on page 1-61 for additional information. When securing a child restraint in a rear seating position, study the instructions that came with your child restraint to make sure it is compatible with this vehicle. Wherever you install a child - 2008 GMC Envoy | Owner's Manual - Page 45
for use with the LATCH system. Make sure that a LATCH-compatible child restraint is properly installed using the anchors, 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. When installing - 2008 GMC Envoy | Owner's Manual - Page 46
are designed for use with or without the top tether being attached. Others require the top tether always to be attached. In Canada, the law requires that forward-facing child restraints have a top tether, and that the tether be attached. Be sure to read and follow the instructions for your child - 2008 GMC Envoy | Owner's Manual - Page 47
and out of the way. Lift the flap to expose the anchors and then lower the seat cushion. Be sure the cushion is locked into place. The top tether anchors for each rear seating position are located on the floor in the cargo area of your vehicle. Do not use the rear tie-down brackets near - 2008 GMC Envoy | Owner's Manual - Page 48
your vehicle, attach only one child restraint per anchor. Securing a Child Restraint Designed for the LATCH System { using the anchors, 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 - 2008 GMC Envoy | Owner's Manual - Page 49
restraint manufacturer instructions and the instructions in this manual. 1.1. Find the lower anchors for the desired seating position. 1.2. Pull the strap at the center of the seat where the seat cushion meets the seatback. This will allow you to fold the seat cushion up and out of the way. Lift the - 2008 GMC Envoy | Owner's Manual - Page 50
2.2. Route and tighten the top tether according to your child restraint instructions and the following instructions. If your vehicle has a cargo shade, route the top tether between the seatback and the cargo shade. If the position you are using does not have a headrest or head restraint and you are - 2008 GMC Envoy | Owner's Manual - Page 51
a rear seating position, study the instructions that came with your child restraint to make sure it is compatible with this vehicle. If your child restraint has the LATCH system, see Lower Anchors and Tethers for Children (LATCH) on page 1-41 for how to install your child restraint using LATCH. If - 2008 GMC Envoy | Owner's Manual - Page 52
3. Push the latch plate into the buckle until it clicks. Make sure the release button is positioned so you would be able to unbuckle the safety belt quickly if necessary. 4. Pull the rest of the shoulder belt all the way out of the retractor to set the lock. 1-48 - 2008 GMC Envoy | Owner's Manual - Page 53
top tether, follow the child restraint manufacturer's instructions regarding the use of the top tether. See Lower Anchors and vehicle's safety belt and let it go back all the way. If the top tether is attached to a top tether anchor, disconnect it. Securing a Child Restraint in the Center Rear Seat - 2008 GMC Envoy | Owner's Manual - Page 54
Securing a Child Restraint in the Right Front Seat Position Your vehicle has airbags. A rear seat is a safer place to secure a forward-facing child restraint. See Where to Put the Restraint on page 1-40. In addition, your vehicle has a passenger sensing system which is designed to turn off the right - 2008 GMC Envoy | Owner's Manual - Page 55
. You will be using the lap-shoulder belt to secure the child restraint in this position. Follow the instructions that came with the child restraint. 1. Move the seat as far back as it will go before securing the forward-facing child restraint. When the passenger sensing system has turned off the - 2008 GMC Envoy | Owner's Manual - Page 56
lap portion of the belt and feed the shoulder belt back into the retractor. If you are using a forward-facing child restraint, you may find it helpful to use your knee to push down on the child restraint as you airbag status indicator will come on and stay on when the vehicle is started. 1-52 - 2008 GMC Envoy | Owner's Manual - Page 57
additional material from the seat such as blankets, cushions, seat covers, seat heaters or seat massagers before reinstalling or securing the child restraint. If the on indicator is still lit, secure the child in the child restraint in a rear seat position in the vehicle and check with your dealer - 2008 GMC Envoy | Owner's Manual - Page 58
the most important things to know about the airbag system: {CAUTION: Frontal airbags are designed to deploy chance of hitting things inside the vehicle or being ejected from it. Airbags are "supplemental restraints" to the safety belts. All airbags are designed to work with safety belts, but do not - 2008 GMC Envoy | Owner's Manual - Page 59
wear your safety belt, even with airbags. The driver should sit as far back as possible while still maintaining control of the vehicle. Occupants should not lean on or sleep against the door or side windows in seating positions with roof-rail airbags. {CAUTION: Airbags plus lap-shoulder belts offer - 2008 GMC Envoy | Owner's Manual - Page 60
Where Are the Airbags? The right front passenger's frontal airbag is in the instrument panel on the passenger's side. The driver's frontal airbag is in the middle of the steering wheel. 1-56 - 2008 GMC Envoy | Owner's Manual - Page 61
do not attach or put anything on the steering wheel hub or on or near any other airbag covering. If your vehicle has roof-rail airbags, never secure anything to the roof of your vehicle by routing the rope or tie down through any door or window opening. If you do, the path of an - 2008 GMC Envoy | Owner's Manual - Page 62
more severe frontal impacts, full deployment occurs. Your vehicle has seat position sensors which enables the sensing system to monitor the position of the driver's and right front passenger's seat. The sensors provide information that is used to determine if the airbags should deploy at a reduced - 2008 GMC Envoy | Owner's Manual - Page 63
the inflator fills the airbag causing the bag to break out of the cover and deploy. The inflator, the airbag, and related hardware are all part of the airbag module. Frontal airbag modules are located inside the steering wheel and instrument panel. For vehicles with roof-rail airbags, there are airbag - 2008 GMC Envoy | Owner's Manual - Page 64
history of asthma or other breathing trouble. To avoid this, everyone in the vehicle should get out as soon as it is safe to do so. If you have breathing problems but cannot get out of the vehicle after an airbag inflates, then get fresh air by opening a window or a door. If you experience breathing - 2008 GMC Envoy | Owner's Manual - Page 65
in another crash. A new system will include airbag modules and possibly other parts. The service manual for your vehicle covers the need to replace other parts. • Your vehicle has a crash sensing and diagnostic module which records information after a crash. See Vehicle Data Recording and Privacy - 2008 GMC Envoy | Owner's Manual - Page 66
not part of the passenger sensing system. The passenger sensing system works with sensors that are part of the right front passenger's seat. rear seat, even if the airbag is off. If you secure a forward-facing child restraint in the right front seat, always move the front passenger seat as far back - 2008 GMC Envoy | Owner's Manual - Page 67
additional material from the seat such as blankets, cushions, seat covers, seat heaters or seat massagers before reinstalling or securing the child restraint. If the on indicator is still lit, secure the child in the child restraint in a rear seat position in the vehicle, and check with your dealer - 2008 GMC Envoy | Owner's Manual - Page 68
enable the right front passenger's frontal airbag. Safety belts help keep the passenger in position on the seat during vehicle maneuvers and braking, which helps the passenger sensing system maintain the passenger airbag status. See "Safety Belts" and "Child Restraints" in the Index for additional - 2008 GMC Envoy | Owner's Manual - Page 69
or cushion, or aftermarket equipment such as seat covers, seat heaters, and seat massagers can affect how well the passenger sensing system operates. We recommend that you not use seat covers or other aftermarket equipment other than any that GM has approved for your specific vehicle. See Adding - 2008 GMC Envoy | Owner's Manual - Page 70
things that change your vehicle's frame, bumper system, height, front end or side sheet metal, they may keep the airbag system from working properly. Changing or moving any parts of the front seats, safety belts, the airbag sensing and diagnostic module, steering wheel, instrument panel, roof-rail - 2008 GMC Envoy | Owner's Manual - Page 71
airbag system? A: If you have questions, call Customer Assistance. The phone numbers and addresses for Customer Assistance are in Step Two of the Customer Satisfaction Procedure in this manual. See Customer Satisfaction Procedure on page 7-2. In addition, your dealer/retailer and the service manual - 2008 GMC Envoy | Owner's Manual - Page 72
Restraint System Check Checking the Restraint Systems Safety Belts Now and then, make sure the safety belt reminder light and all your belts, buckles, latch plates, retractors and anchorages are working properly. Look for any other loose or damaged safety belt system parts. If you see anything that - 2008 GMC Envoy | Owner's Manual - Page 73
was not being used at the time of the crash. If an airbag inflates, you will need to replace airbag system parts. See the part on the airbag system earlier in this section. Have your safety belt pretensioners checked if your vehicle has been in a crash, if your airbag readiness light stays on after - 2008 GMC Envoy | Owner's Manual - Page 74
✍ NOTES 1-70 - 2008 GMC Envoy | Owner's Manual - Page 75
2 Features and Controls Retained Accessory Power (RAP) ...2-22 Starting the Engine ...2-22 Adjustable Throttle and Brake Pedal ...2-24 Engine Coolant Heater ...2-24 Active Fuel Management™ ...2-25 Automatic Transmission Operation ...2-26 Four-Wheel Drive ...2-29 Parking Brake ...2-33 Shifting Into - 2008 GMC Envoy | Owner's Manual - Page 76
57 Overhead Console ...2-57 Center Console Storage ...2-57 Luggage Carrier ...2-58 Rear Floor Storage Lid ...2-59 Convenience Net ...2-59 Cargo Cover ...2-59 Cargo Tie Downs ...2-60 Sunroof ...2-60 Outside Manual Mirrors ...2-46 Outside Power Mirrors ...2-47 Outside Curb View Assist Mirror ...2-47 - 2008 GMC Envoy | Owner's Manual - Page 77
caught in the path of a closing window. Do not leave the keys in a vehicle with children. This vehicle has keys that can be used for the ignition and door lock that will fit with either side up. When a new vehicle is delivered, the dealer/retailer provides the owner with a pair of identical keys and - 2008 GMC Envoy | Owner's Manual - Page 78
stand closer to your vehicle for the transmitter to work, try this: Remote Keyless Entry (RKE) System Your Remote Keyless Entry (RKE) 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 - 2008 GMC Envoy | Owner's Manual - Page 79
feet (9 m) away using the RKE transmitter supplied with your vehicle. There are other conditions which can affect the performance of the transmitter. See Remote Keyless Entry (RKE) System on page 2-4. You can program different feedback settings through the Driver Information Center (DIC). For more - 2008 GMC Envoy | Owner's Manual - Page 80
, use care not to touch any of the circuitry. Static from your body transferred to these surfaces may damage the transmitter. To replace the battery in the RKE transmitter do the following: 1. Separate the halves of the transmitter with a flat, thin object inserted into the slot between the covers - 2008 GMC Envoy | Owner's Manual - Page 81
Doors and Locks Door Locks There are several ways to lock and unlock your vehicle. You can use the remote keyless entry system. You can use your key to unlock your door from the outside. {CAUTION: Unlocked doors can be dangerous. • Passengers, especially children, can easily open the doors and - 2008 GMC Envoy | Owner's Manual - Page 82
locking of the doors and the liftgate when using the power lock or the remote keyless entry system. The first press of the power door lock You can lock the doors immediately by using the power door lock switch or by pressing the lock button on the optional remote keyless entry transmitter a second - 2008 GMC Envoy | Owner's Manual - Page 83
instructions detail how to program your door locks differently than the factory setting. Choose one of the two programming options listed vehicle's power door locks. You can program this feature through the Driver Information Center (DIC), or by the following method. See DIC Vehicle Customization - 2008 GMC Envoy | Owner's Manual - Page 84
to unlock all doors once the transmission is shifted to PARK (P). The following instructions detail how to program your door locks differently than the factory setting. Choose one of the four programming options listed previously before entering the program mode. To enter the program mode you need - 2008 GMC Envoy | Owner's Manual - Page 85
down to engage the security lock. Move the lever up to disengage the security lock. The rear doors of your vehicle cannot be opened from the inside while this feature is in use. If you want to open the rear door while the security lock is on, unlock the door and open - 2008 GMC Envoy | Owner's Manual - Page 86
through the seal between the body and the liftgate or liftglass: • Make sure all other windows are shut. • Turn the fan on your climate control system to its highest speed and select the control setting that will force outside air into your vehicle. See "Climate Control System" in the Index. • If - 2008 GMC Envoy | Owner's Manual - Page 87
, helpless adults, or pets in a vehicle with the windows closed is dangerous. They can be overcome by the extreme heat and 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 - 2008 GMC Envoy | Owner's Manual - Page 88
in the rear seat use the window lockout button to prevent unintentional operation of the windows. The controls for the power windows are located on the armrest on each of the side doors. With power windows, the switches operate the windows when the ignition is in RUN, ACCESSORY or when Retained - 2008 GMC Envoy | Owner's Manual - Page 89
. Detach the sun visor from the center mount and swing it to the side to cover the side window. Visor Vanity Mirror Pull the sun visor down to expose the vanity mirror. You may have to lift a cover to expose the mirror. Lighted Visor Vanity Mirror Your vehicle may have this feature. Pull the - 2008 GMC Envoy | Owner's Manual - Page 90
will turn off to save the battery power. To avoid setting off the alarm by accident: Content Theft-Deterrent Your vehicle may have a content theft-deterrent alarm system. The security light is located on the instrument panel cluster. • Always lock the vehicle using the door key after the doors - 2008 GMC Envoy | Owner's Manual - Page 91
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 turn the engine off. However, your Passlock® system is not working properly and must be - 2008 GMC Envoy | Owner's Manual - Page 92
turned to ON/RUN. You do not have to manually arm or disarm the system. The security light will come on if there is a problem with arming or disarming the theft-deterrent system. The key uses a transponder that matches an immobilizer control unit in your vehicle. Only the correct key will start the - 2008 GMC Envoy | Owner's Manual - Page 93
When trying to start the vehicle, if the engine does not start and the security light comes on, there may be a problem with your theft-deterrent system. Turn the ignition off and try again. If the engine still does not start, and the key appears to be undamaged, try another ignition key. At this - 2008 GMC Envoy | Owner's Manual - Page 94
are to be programmed. If the security light comes on and stays on while driving, you will be able to restart the engine if you turn it off. The theft-deterrent system, however, is not working properly and must be serviced by your dealer/retailer. Your vehicle is not protected by the theft-deterrent - 2008 GMC Envoy | Owner's Manual - Page 95
LOCK/OFF. If the steering wheel is locked, move it from right to left and turn the key to ACC/ACCESSORY. If none of this works, then your vehicle needs service. B (ACC/ACCESSORY): This position lets you use things like the radio and the windshield wipers when the engine is off. Lengthy operation of - 2008 GMC Envoy | Owner's Manual - Page 96
. If you do, you could damage the transmission. Shift to PARK (P) only when your vehicle is stopped. Retained Accessory Power (RAP) These vehicle accessories can be used for up to 20 minutes after the engine is turned off: Audio System Power Windows Overhead Console Sunroof (if equipped) 2-22 - 2008 GMC Envoy | Owner's Manual - Page 97
in your vehicle. If you add electrical parts or accessories, you could change the way the engine operates. Before adding electrical equipment, check with your dealer/retailer. If you do not, your engine might not perform properly. Any resulting damage would not be covered by your vehicle's warranty - 2008 GMC Envoy | Owner's Manual - Page 98
operation at temperatures above 0°F (−18°C). To Use the Engine Coolant Heater 1. Turn off the engine. 2. Open the hood and unwrap the electrical cord. The cord is located on the driver's side of the engine compartment next to the battery box facing the engine. 3. Plug it into a normal, grounded 110 - 2008 GMC Envoy | Owner's Manual - Page 99
particular area. Your vehicle's V8 engine may have Active Fuel Management™. This system allows the engine to operate on either all or half of its cylinders, depending on your driving conditions. When less power is required, such as cruising at a constant vehicle speed, the system will operate in - 2008 GMC Envoy | Owner's Manual - Page 100
your parking brake and move the shift lever to PARK (P). See Shifting Into PARK (P) on page 2-34. If you are pulling a trailer, see Towing a Trailer on page 4-45. PARK (P): This position locks the rear wheels. It is the best position to use when you start the engine because your vehicle cannot move - 2008 GMC Envoy | Owner's Manual - Page 101
not in NEUTRAL. See Four-Wheel Drive on page 2-29. See Shifting Into PARK (P) on page 2-34. Make sure the shift lever is fully in PARK (P) before starting the engine. Your vehicle has an automatic transmission shift lock control system. You have to fully apply the regular brakes first and then press - 2008 GMC Envoy | Owner's Manual - Page 102
vehicle speed even more than THIRD (3) without using your brakes. You can use SECOND (2) on hills. It can help control covered by your warranty. If you are stuck, do not spin the tires. When stopping on a hill, use the brakes to hold the vehicle Control on page 4-12. DRIVE (D) can be used when towing - 2008 GMC Envoy | Owner's Manual - Page 103
If your vehicle has four-wheel drive, the engine's driving power can be sent to all four wheels for extra traction. To get the most satisfaction out of four-wheel drive, you must be familiar with its operation. Read the part that follows before using four-wheel drive. You should use Two-Wheel High - 2008 GMC Envoy | Owner's Manual - Page 104
placing the transfer case in NEUTRAL. See Parking Brake on page 2-33. NEUTRAL: Shift the vehicle's transfer case to NEUTRAL only when towing your vehicle. See Recreational Vehicle Towing on page 4-40 for more information. An indicator light in the knob will show you which position the transfer - 2008 GMC Envoy | Owner's Manual - Page 105
Wheel-High, Auto Four-Wheel Drive, or Two-Wheel High when your vehicle is in gear and/or moving, the Four-Wheel High, Auto Four-Wheel Drive, or Two-Wheel High indicator light -Wheel Low. Shifting Into Four-Wheel Low To shift to Four-Wheel Low, the vehicle's engine must be running and the vehicle - 2008 GMC Envoy | Owner's Manual - Page 106
brake. 2. Start the vehicle. 3. Put the transmission in NEUTRAL (N). 4. Shift the transfer case to Two-Wheel High. 5. Turn the transfer case knob all of the way past Four-Wheel Low and hold it there for a minimum of 10 seconds. The neutral indicator light will come on. 6. With the engine running - 2008 GMC Envoy | Owner's Manual - Page 107
on page 3-38. 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 you must park on a hill - 2008 GMC Envoy | Owner's Manual - Page 108
the parking brake firmly set. Your vehicle can roll. If you have left the engine running, the vehicle can move suddenly. You or 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. With four-wheel drive, your vehicle will - 2008 GMC Envoy | Owner's Manual - Page 109
vehicle with the engine running. Your vehicle could move suddenly if the shift lever is not fully in PARK (P) with the parking brake firmly set. If you have four-wheel drive, your vehicle shift your transmission into PARK (P) properly, the weight of the vehicle may put too much force on the parking - 2008 GMC Envoy | Owner's Manual - Page 110
lock release system. The shift lock release is designed to: If your vehicle has an uncharged battery or a battery with low voltage, try charging or jump starting the battery. See Jump Starting on page 5-42 for more information. To shift out of PARK (P) use the following: 1. Apply the brake pedal - 2008 GMC Envoy | Owner's Manual - Page 111
parts under your vehicle and ignite. Do not park over papers, leaves, dry grass, or other things that can burn. Engine Exhaust {CAUTION: Engine vehicle or the exhaust system has been modified improperly. If you ever suspect exhaust is coming into your vehicle: • Drive it only with all the windows - 2008 GMC Envoy | Owner's Manual - Page 112
you are on fairly level ground, always set the parking brake and move the shift lever to PARK (P). {CAUTION: Idling the engine with the climate control system off could allow dangerous exhaust into your vehicle. See the earlier caution under Engine Exhaust on page 2-37. Also, idling in a closed-in - 2008 GMC Envoy | Owner's Manual - Page 113
to OnStar®. See OnStar® System on page 2-48 for more information on the services OnStar® provides. Mirrors Manual Rearview Mirror When you are sitting in a comfortable driving position, adjust the mirror so you can see clearly behind your vehicle. Grip the mirror in the center to move it up or - 2008 GMC Envoy | Owner's Manual - Page 114
start. To turn the automatic dimming feature off or back on, press the on/off button. The indicator light on the mirror is lit when the automatic dimming . CAL will be displayed in the compass window on the mirror. The compass can be calibrated by driving the vehicle in circles at 5 mph (8 km/h) or - 2008 GMC Envoy | Owner's Manual - Page 115
. 3. Scroll through the zone numbers that appear in the window on the mirror by pressing the on/off button. Once you OnStar®, Compass and Temperature Display Your vehicle may have this feature. When on to the proper level to minimize glare from lights behind you after dark. The mirror also includes - 2008 GMC Envoy | Owner's Manual - Page 116
automatic dimming mirror, do the following: 1. Make sure the green indicator light, located to the left of the on/off button, is lit. If function by pressing and holding the on/off button until the green indicator light turns off. To adjust between Fahrenheit and Celsius, do the following: 1. - 2008 GMC Envoy | Owner's Manual - Page 117
In order to calibrate, CAL must be displayed in the mirror compass windows. If CAL is not displayed, press and hold the on/off button until CAL is displayed. The compass can be calibrated by driving the vehicle in circles at 5 mph (8 km/h) or less until the display reads a direction. - 2008 GMC Envoy | Owner's Manual - Page 118
vehicle has this feature, the mirror will display the word ON, or an airbag symbol in Canada, when the passenger airbag is enabled. For more information, see Passenger Sensing System light turns off. Cleaning the Mirror When cleaning the mirror, use and off. To alternate the temperature reading - 2008 GMC Envoy | Owner's Manual - Page 119
. In order to calibrate, CAL must be displayed in the mirror compass windows. If CAL is not displayed, press and hold the COMP button until CAL is displayed. The compass can be calibrated by driving the vehicle in circles at 5 mph (8 km/h) or less until the display reads a - 2008 GMC Envoy | Owner's Manual - Page 120
on the mirror glass, just above the buttons. If the vehicle has this feature the mirror will display the word ON, or an airbag symbol in Canada, when the passenger airbag is enabled. For more information see Passenger Sensing System on page 1-61. Cleaning the Mirror When cleaning the mirror - 2008 GMC Envoy | Owner's Manual - Page 121
can go no further. To stop this action, back the mirror up by moving the knob in the opposite direction. The mirrors can be manually folded inward to prevent damage when going through an automatic car wash. To fold, push the mirror toward the vehicle. To return the mirror to its original position - 2008 GMC Envoy | Owner's Manual - Page 122
is curved so more can be seen from the driver seat. It also makes things, like other vehicles, look farther away than they really are. Outside Heated Mirrors Your vehicle may have this feature. When you operate the rear window defogger, the defogger also warms the heated driver's and passenger - 2008 GMC Envoy | Owner's Manual - Page 123
day, 7 days a week. Not all OnStar features are available on all vehicles. To check if your vehicle is equipped to provide the services described below, or for a full description of OnStar services and system limitations, see the OnStar Owner's Guide in your glove box or visit onstar.com. Available - 2008 GMC Envoy | Owner's Manual - Page 124
the OnStar Owner's Guide in the vehicle's glove box, visit www.onstar.com or www.onstar.ca, or speak with an OnStar advisor by pressing the OnStar button or calling 1-888-4-ONSTAR (1-888-466-7827). OnStar Steering Wheel Controls Your vehicle may have a Talk/Mute button that can be used to interact - 2008 GMC Envoy | Owner's Manual - Page 125
a working electrical system (including adequate battery power) for the OnStar equipment to operate. There are other problems OnStar cannot control that may prevent OnStar from providing OnStar service to you at any particular time or place. Some examples are damage to important parts of your vehicle - 2008 GMC Envoy | Owner's Manual - Page 126
(With One Triangular LED) If there is one triangular Light Emitting Diode (LED) indicator light above the Universal Home Remote buttons, follow the instructions below. This system provides a way to replace up to three remote control transmitters used to activate devices such as garage door openers - 2008 GMC Envoy | Owner's Manual - Page 127
Keep the original hand-held transmitter for use in other vehicles as well as for future Universal Home Remote programming. It is also recommended that upon the sale of the vehicle, the programmed Universal Home Remote buttons should be erased for security purposes. See "Erasing Universal Home Remote - 2008 GMC Envoy | Owner's Manual - Page 128
both the Universal Home Remote button that you would like to use to control the garage door and the hand-held transmitter button. Do not newly-trained Universal Home Remote button and observe the indicator light. If the indicator light stays on continuously, the programming is complete and your - 2008 GMC Envoy | Owner's Manual - Page 129
return to the vehicle. Firmly press and hold the Universal Home Remote button, chosen in Step 3 to control the garage door, 2 of "Programming the Universal Home Remote System." Do not repeat Step 1, as this receiver (motor-head unit). Locate the "Learn" or "Smart" button. The name and color of the - 2008 GMC Envoy | Owner's Manual - Page 130
help programming the Universal Home Remote System, call 1-800-355-3515 or live in Canada, or you are having difficulty programming a gate operator or garage door opener by using the "Programming Home Remote. The Universal Home Remote indicator light will flash slowly at first and then rapidly - 2008 GMC Envoy | Owner's Manual - Page 131
up. Use the key to lock and unlock. • Rear Seat Audio Controls • Rear Seat Accessory Power Outlets • Rear Climate Control To open the center armrest compartment, lift the cover by pulling up on the latch handle located under the front edge of the armrest. Overhead Console Your vehicle may have - 2008 GMC Envoy | Owner's Manual - Page 132
sure to fasten it securely. Do not exceed the maximum vehicle capacity when loading your vehicle. For more information on vehicle capacity and loading, see Loading Your Vehicle on page 4-34. To prevent damage or loss of cargo as you are driving, check now and then to make sure the luggage carrier is - 2008 GMC Envoy | Owner's Manual - Page 133
the latch until you hear it click. Cargo Cover If your vehicle has a cargo cover, you can use it to cover items in the cargo area of your vehicle. To install the cargo cover: 1. Align the endcap with the pocket in the trim panel located behind the rear seat. 2. Squeeze the opposite endcap, align it - 2008 GMC Envoy | Owner's Manual - Page 134
be active. See Retained Accessory Power (RAP) on page 2-22. Press and release the back of the control in the overhead console to open the sunroof. Press the front of the control to close the sunroof. {CAUTION: An improperly stored cargo cover could be thrown about the vehicle during a collision or - 2008 GMC Envoy | Owner's Manual - Page 135
-to-Pass ...3-8 Windshield Wipers ...3-9 Windshield Washer ...3-9 Rear Window Wiper/Washer ...3-10 Headlamp Washer ...3-11 Cruise Control ...3-11 Headlamps ...3-14 Headlamps on Reminder ...3-15 Daytime Running Lamps (DRL) ...3-15 Automatic Headlamp System ...3-15 Fog Lamps ...3-16 Instrument Panel - 2008 GMC Envoy | Owner's Manual - Page 136
46 Cruise Control Light ...3-46 Reduced Engine Power Light ...3-46 Highbeam On Light ...3-47 Service Four-Wheel Drive Warning Light ...3-47 Check Gages Warning Light ...3-47 Gate Ajar Light ...3-48 Fuel Gage ...3-48 Low Fuel Warning Light ...3-49 Check Gas Cap Light ...3-49 Driver Information Center - 2008 GMC Envoy | Owner's Manual - Page 137
✍ NOTES 3-3 - 2008 GMC Envoy | Owner's Manual - Page 138
Instrument Panel Overview 3-4 - 2008 GMC Envoy | Owner's Manual - Page 139
Outlets. See Accessory Power Outlet(s) on page 3-20. P. Parking Brake. See Parking Brake on page 2-33. Q. Rear Window Washer/Wiper. See "Rear Window Washer/Wiper" under Windshield Washer on page 3-9. R. Rear Window Defogger. See "Rear Window Defogger" under Dual Climate Control System on page 3-21 - 2008 GMC Envoy | Owner's Manual - Page 140
and even if the key is not in the ignition. When the hazard warning flashers are on, your vehicle's turn signals will not work. Do not adjust the steering wheel while driving. Hold the steering wheel and pull the lever toward you to change the position, then release the lever to lock. Other Warning - 2008 GMC Envoy | Owner's Manual - Page 141
Washer I Cruise Control To towing option with added wiring for the trailer lamps, a turn signal flasher is used. With this flasher installed, the signal indicator flashes even if a turn signal bulb is burned out. Check the front and rear turn signal lamps regularly to make sure they are working - 2008 GMC Envoy | Owner's Manual - Page 142
signal a 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 it. If it. When the high beams are on, this indicator light on the instrument panel cluster will also be on. 3-8 - 2008 GMC Envoy | Owner's Manual - Page 143
Move the band to off, to stop the wipers. Turn the band to control the Windshield Washer L (Windshield Washer): To spray washer fluid on the windshield, press the windshield washer paddle. The wipers will clear the window and then either stop or return to your preset speed. 9 (Off): N (Windshield - 2008 GMC Envoy | Owner's Manual - Page 144
center of the control. The rear window washer uses the fluid from the same reservoir as the windshield washer. However, the rear window washer runs out of fluid before the windshield washer. If you can wash your windshield but not your rear window, check the fluid level. The rear window/washer control - 2008 GMC Envoy | Owner's Manual - Page 145
. The button to operate this feature is located on the instrument panel and functions separately from your other washer systems. Cruise Control Your vehicle has cruise control. The controls are located on the end of the turn signal/multifunction lever. To wash your headlamps, press the headlamp - 2008 GMC Envoy | Owner's Manual - Page 146
can really help on long trips. Cruise control does not work at speeds below about 25 mph (40 km/h). If you apply the brakes, the cruise control shuts off. {CAUTION: If you leave your cruise control on when you are not using cruise, you might hit a button and go into cruise when you do not want to - 2008 GMC Envoy | Owner's Manual - Page 147
accelerator pedal to increase your speed. When you take your foot off the pedal, your vehicle will slow down to the cruise control speed set earlier. Using Cruise Control on Hills How well your cruise control works on hills depends upon your speed, load and the steepness of the hills. When going - 2008 GMC Envoy | Owner's Manual - Page 148
are three ways to turn off the cruise control: • Step lightly on the brake pedal. • Move the cruise switch to off, or • Shift the transmission to NEUTRAL (N). Erasing Speed Memory When you turn off the cruise control or the ignition, the cruise control set speed memory is erased. c (Off): Turn - 2008 GMC Envoy | Owner's Manual - Page 149
are manually turned system remains on during these conditions even if the vehicle is shifted back into PARK (P). The vehicle has a light sensor on the top of the instrument panel. Make sure it is not covered or the system required on all vehicles first sold in Canada. The DRL system makes the headlamps - 2008 GMC Envoy | Owner's Manual - Page 150
to change to DRL if it is light outside. During that delay, the instrument panel cluster might not be as bright as usual. Make sure the instrument panel brightness control is in the full bright position. If the vehicle is running and the automatic headlamp system is already on, it can be turned - 2008 GMC Envoy | Owner's Manual - Page 151
lights. Turn the knob all the way up to turn on the interior lamps. Press the knob back into its stored position when you are not using override the illuminated entry feature unless you use the Remote Keyless Entry (RKE) transmitter to unlock the vehicle. To return the lamps to automatic operation - 2008 GMC Envoy | Owner's Manual - Page 152
following loads are on: headlamps, high beams, fog lamps, rear window defogger, climate control fan at high speed, heated seats, engine cooling fans, trailer loads, and loads plugged into accessory power outlets. Exit Lighting With exit lighting, the interior lamps come on when you remove the key - 2008 GMC Envoy | Owner's Manual - Page 153
of corrective action, this action may be noticeable to the driver. If so, a Driver Information Center (DIC) message might be displayed, such as Battery Saver Active or Service Battery Charging System. If this message is displayed, it is recommended that the driver reduce the electrical loads as - 2008 GMC Envoy | Owner's Manual - Page 154
CB radio. Your vehicle has three accessory power outlets. There are two outlets located below the climate controls and one outlet is on the rear of the center floor console. Remove the cover from the outlet to use the outlet. Be sure to put the cover back on when not using the accessory power outlet - 2008 GMC Envoy | Owner's Manual - Page 155
the temperature knob. Turn the right knob clockwise or counterclockwise to direct the airflow inside of your vehicle. Recirculation mode is used to recirculate the air inside of your vehicle. When this button is pressed, an indicator light in the button will come on to let you know that it is active - 2008 GMC Envoy | Owner's Manual - Page 156
lower, use the engine coolant heater, if the vehicle has one, to provide warmer air, faster to your vehicle. Defogging and Defrosting Fog on the inside of windows is a result of high humidity (moisture) condensing on the cool window glass. This can be minimized if the climate control system is used - 2008 GMC Envoy | Owner's Manual - Page 157
Defogger If your vehicle has the rear window defogger a warming grid is used to remove fog on the rear window. Dual Automatic Climate Control System < (Rear): Press this button to turn the rear window defogger on or off. An indicator light in the button will come on to let you know that the - 2008 GMC Envoy | Owner's Manual - Page 158
off the entire climate control system. Outside air will still enter the vehicle, and will be directed to the floor. Press the AUTO button, the mode button, the fan arrows, or either temperature knob to turn the system on. C (Mode): Press this button to manually select the air delivery mode to the - 2008 GMC Envoy | Owner's Manual - Page 159
system will control the inside temperature, the air delivery mode, and the fan speed. Use the steps below to place the entire system in automatic mode: 1. Press the AUTO button. When AUTO is selected, the air conditioning operation and air manually change the direction of the airflow in your vehicle. - 2008 GMC Envoy | Owner's Manual - Page 160
using recirculation mode. If the windows do start to fog, select defog or defrost mode and increase fan speed. Recirculation mode, if selected, will be cleared when the engine is turned off. #A/C (Air Conditioning): @ (Recirculation): Press this button to manually turn the air conditioning system - 2008 GMC Envoy | Owner's Manual - Page 161
the climate control system is used properly. You can use either defog or front defrost to clear fog or frost from your windshield. Use this setting to clear the windows of fog or moisture. This setting will deliver air to the floor and windshield outlets. Rear Window Defogger If your vehicle has the - 2008 GMC Envoy | Owner's Manual - Page 162
by the front passenger temperature setting. Use the mode knob to change the direction of airflow (upper, bi-level or floor) to the rear seat area. PWR (Power): Press this button to turn the rear climate controls on or off. Rear Climate Control System Your vehicle has one of the following rear - 2008 GMC Envoy | Owner's Manual - Page 163
floor) to the rear seat area. The rear control only turns on if the front climate control system is on and not in defrost mode. If your vehicle has the rear seat audio system, the lower buttons are used to adjust the rear seat climate control system. The temperature of the air coming through the rear - 2008 GMC Envoy | Owner's Manual - Page 164
problem, check the section that tells you what to do about it. Please follow this manual's advice. Waiting to do repairs can be costly-and even dangerous. So please get to know your warning lights and gages. They're a big help. Your vehicle may also have a Driver Information Center (DIC) that works - 2008 GMC Envoy | Owner's Manual - Page 165
Instrument Panel Cluster Your instrument panel cluster is designed to let you know at a glance how your vehicle is running. You will know how fast you are going, about how much fuel you have used, and many other things you will need to know to drive safely and economically. United States Uplevel - 2008 GMC Envoy | Owner's Manual - Page 166
Information Center (DIC). You can set a Trip A and Trip B odometer. See "Trip Information" under DIC Operation and Displays on page 3-50. The odometer mileage can be checked without the vehicle running. Press the trip stem on the instrument panel cluster. Safety Belt Reminder Light When the engine - 2008 GMC Envoy | Owner's Manual - Page 167
is an electrical problem. The system check includes the airbag sensor, the pretensioners, the airbag modules, the wiring and the crash sensing and diagnostic module. For more information on the airbag system, see Airbag System on page 1-53. This light will come on when you start your vehicle, and it - 2008 GMC Envoy | Owner's Manual - Page 168
engine. If the light does not come on then, have it fixed immediately. If there is a problem with the airbag system, an airbag Driver Information Center (DIC) message may also come on. See DIC Warnings and Messages on page 3-53 for more information. United States Canada When you start the vehicle - 2008 GMC Envoy | Owner's Manual - Page 169
restraint installed in the right front passenger's seat, it means that the passenger sensing system has not turned off the passenger's back of the rear-facing child restraint would be very close to the inflating airbag. Do not use a rear-facing child restraint in the right front passenger's seat - 2008 GMC Envoy | Owner's Manual - Page 170
at all, there may be a problem with the lights or the passenger sensing system. See your dealer/retailer for service. Charging System Light This light will come on briefly when you turn on the ignition key, but the engine is not running, as a check to show you it is working. {CAUTION: If the airbag - 2008 GMC Envoy | Owner's Manual - Page 171
the reading in either warning zone. If you 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. When the engine is running, the gage shows the condition of the charging - 2008 GMC Envoy | Owner's Manual - Page 172
Your brake system may not be working properly if the brake system warning light is on. Driving with the brake system warning light on can lead to an accident. If the light is still on after you have pulled off the road and stopped carefully, have the vehicle towed for service. United States Canada - 2008 GMC Envoy | Owner's Manual - Page 173
, your vehicle needs service. If the regular brake system warning light is not on, your vehicle still has brakes, but not antilock brakes. If the regular brake system warning light is also on, your vehicle does not have antilock brakes and there is a problem with the regular brakes. See Brake System - 2008 GMC Envoy | Owner's Manual - Page 174
is actively controlling the stability and/or traction of the vehicle, this light will flash. This is normal. This light will come on if any portion of the system has been manually turned off or a problem is detected in the system. If your vehicle has a Driver Information Center, a message will appear - 2008 GMC Envoy | Owner's Manual - Page 175
, ignition, and emission control systems. It makes sure that emissions are at acceptable levels for the life of the vehicle, helping to produce a cleaner environment. The check engine light comes on to indicate that there is an OBD II problem and service is required. When the Light is Solid This - 2008 GMC Envoy | Owner's Manual - Page 176
any problem is apparent. This can prevent more serious damage to your vehicle. This system is also designed to assist your service technician in correctly diagnosing any malfunction. Notice: If you keep driving your vehicle with this light on, after a while, the emission controls might not work as - 2008 GMC Envoy | Owner's Manual - Page 177
light turn off, your dealer/retailer can check the vehicle. Your dealer/retailer has the proper test equipment and diagnostic tools to fix any mechanical or electrical problems that might have developed. Reduce vehicle speed. Avoid hard accelerations. Avoid steep uphill grades. If you are towing - 2008 GMC Envoy | Owner's Manual - Page 178
this inspection if the check engine light is on or not working properly. Your vehicle will not pass this inspection if the OBD (on-board diagnostic) system determines that critical emission control systems have not been completely diagnosed by the system. The vehicle would be considered not ready - 2008 GMC Envoy | Owner's Manual - Page 179
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 would not be covered by your warranty. Always follow the maintenance schedule in this manual for changing engine oil. Oil pressure - 2008 GMC Envoy | Owner's Manual - Page 180
security system, see Content Theft-Deterrent on page 2-16. Reduced Engine Power Light This light comes on when a noticeable reduction in the vehicle's performance occurs. Cruise Control Light If your vehicle has a Driver Information Center (DIC), this light will come on when the cruise control is - 2008 GMC Envoy | Owner's Manual - Page 181
headlamps are in use. The service four-wheel drive light comes on to indicate that there may be a problem with the drive system and service is required. Malfunctions can be indicated by the system before any problem is apparent, which may prevent serious damage to the vehicle. This system is also - 2008 GMC Envoy | Owner's Manual - Page 182
this light comes on, the liftgate or liftglass is not completely shut. When the ignition is on, the fuel gage tells you about how much fuel you have remaining. Here are four things that some owners ask about. None of these show a problem with your fuel gage: • At the gas station, the gas pump - 2008 GMC Envoy | Owner's Manual - Page 183
reset stem. See Speedometer and Odometer on page 3-32 for information on features for vehicles without DIC buttons. Check Gas Cap Light If your vehicle has this light, it will come on if your gas cap is not securely fastened. See Malfunction Indicator Lamp on page 3-41 for more information - 2008 GMC Envoy | Owner's Manual - Page 184
displayed before the engine was turned off. If a problem is detected, a warning message will appear on the display. Pressing the trip stem will acknowledge any warning or service messages. Pressing any of the DIC steering wheel buttons - trip information, fuel information, customization, or select - 2008 GMC Envoy | Owner's Manual - Page 185
This mode shows the total distance the vehicle has been driven in either miles or kilometers. rear passenger's side tire. Timer: The DIC can be used as a timer. Press the select button while TIMER is (99:59:59) after which the display will roll back to zero. To stop the counting of time, press the - 2008 GMC Envoy | Owner's Manual - Page 186
reset the engine oil life system after an oil change. To reset the engine oil life system, see Engine Oil Life System on page 5-19. In addition to the engine oil life system monitoring the oil life, additional maintenance is recommended in the Maintenance Schedule in this manual. See Engine Oil on - 2008 GMC Envoy | Owner's Manual - Page 187
DIC information will appear. CHANGE ENGINE OIL This message displays when the engine oil needs to be changed and service is required for your vehicle. See Scheduled Maintenance on page 6-4 and Engine Oil on page 5-16 for more information. Also see Engine Oil Life System on page 5-19 for information - 2008 GMC Envoy | Owner's Manual - Page 188
. CHECK WASHER FLUID This message displays if the washer fluid level is low. Adding washer fluid to the windshield washer fluid reservoir clears this message. See Windshield Washer Fluid on page 5-37. This message clears itself after 10 seconds, or you can manually clear it from the DIC display. CURB - 2008 GMC Envoy | Owner's Manual - Page 189
possible and do not operate it until the cause of the low oil pressure has been corrected. Check the oil as soon as possible and have your vehicle serviced by your dealer/retailer. See Engine Oil on page 5-16. KEY FOB # BATTERY LOW This message displays if a Remote Keyless Entry (RKE) transmitter - 2008 GMC Envoy | Owner's Manual - Page 190
the vehicle, check the door for obstructions, and close the door again. Check to see if the message still appears on the DIC. SERVICE AIR BAG This message displays if there is a problem with the airbag system. Have your dealer/retailer inspect the system for problems. See Airbag Readiness Light on - 2008 GMC Envoy | Owner's Manual - Page 191
message to appear. STABILITRAK ACTIVE This message displays anytime the StabiliTrak® system activates to maintain vehicle stability. Any combination of engine speed management, brake traction control, and stability control displays this message. STABILITRAK NOT READY This message may display if - 2008 GMC Envoy | Owner's Manual - Page 192
VEHICLE SETTINGS momentarily displays before going to a customization option. TRACTION CONTROL OFF This message displays when you momentarily press the StabiliTrak® button located on the transmission shift handle. In this mode, stability control and the brake-traction control are functional. Engine - 2008 GMC Envoy | Owner's Manual - Page 193
The doors will lock when the vehicle is shifted out of PARK (P). LOCK DOORS: WITH SPEED: The doors will lock when the vehicle speed is above 8 mph (13 DOORS: MANUALLY: The doors will not be unlocked automatically. To select a setting and move on to the next feature, press the customization button - 2008 GMC Envoy | Owner's Manual - Page 194
transmitter and the horn will chirp the second time you press the unlock button. UNLOCK FEEDBACK: OFF: There will be no feedback when unlocking the vehicle. To select a setting and move on to the next feature, press the customization button while the desired setting is displayed on the DIC. 3-60 - 2008 GMC Envoy | Owner's Manual - Page 195
with the Remote Keyless Entry (RKE) transmitter. PERIMETER LIGHTS: OFF: The perimeter lights will not come on when you unlock the vehicle with the RKE transmitter. To select a setting and move on to the next feature, press the customization button while the desired setting is displayed on the DIC - 2008 GMC Envoy | Owner's Manual - Page 196
, Mirrors, and Pedals on page 1-5 for more information. Seat Recall Press the customization button until SEAT RECALL: OFF appears in the display. To select your preference for recall of the driver's memory seat and adjustable pedals, if your vehicle has this feature, press the select button while - 2008 GMC Envoy | Owner's Manual - Page 197
When the vehicle is placed in PARK (P) or in any forward gear, the mirror will return to the normal driving position, following a short delay. To select a setting and move on to the next feature, press the customization button while the desired setting is displayed on the DIC. See Outside Curb View - 2008 GMC Envoy | Owner's Manual - Page 198
Units Press the customization button until UNITS: U.S. (ENGLISH) appears in the display. To select the units of measurement in which the DIC will display vehicle information, press the out of the customizable options, press the customization button while the desired setting is displayed on the DIC. - 2008 GMC Envoy | Owner's Manual - Page 199
wheel controls if the vehicle has them. Notice: Before adding any sound equipment to your vehicle, such as an audio system, CD player, CB radio, mobile telephone, or two-way radio, make sure that it can be added by checking with your dealer/retailer. Also, check federal rules covering mobile - 2008 GMC Envoy | Owner's Manual - Page 200
Your vehicle may have a feature called Retained Accessory Power (RAP). With RAP, the audio system can be played even after the ignition is turned off. See Retained Accessory Power (RAP) on page 2-22 for more information. Radio(s) Setting the Clock The radio may have a button marked with an H or HR - 2008 GMC Envoy | Owner's Manual - Page 201
Base MP3 Radio shown, Bose® similar Base Six-Disc CD Radio shown, Bose® similar Your vehicle has one of these radios as its audio system. If your vehicle has the Bose® audio system, your vehicle has six Bose® amplified speakers. 3-67 - 2008 GMC Envoy | Owner's Manual - Page 202
System (RDS) The audio system has a Radio Data System (RDS). RDS features are available for use only on FM stations that broadcast RDS information. With RDS, the radio can do the following: Playing the Radio PWR (Power): Push to turn the system displays while using RDS. The display options are work - 2008 GMC Envoy | Owner's Manual - Page 203
AUTO VOL (Automatic Volume): With automatic volume, the audio system adjusts automatically to make up for road and wind noise while driving by increasing the volume as vehicle speed increases. Set the volume at the desired level. Press this button to select LOW, MEDIUM, or HIGH. AVOL, or depending - 2008 GMC Envoy | Owner's Manual - Page 204
the AUDIO knob when no tone or speaker controls displays. ALL CENTERED displays and a beep is heard. AUTO EQ (Automatic Equalization): Press to select customized equalization settings designed for country/ western, jazz, talk, pop, rock, and classical. To return the bass and treble to the manual - 2008 GMC Envoy | Owner's Manual - Page 205
then push it again and hold it until one beep is heard. To adjust all tone and speaker controls to the middle position, push and hold the AUDIO knob when no tone or speaker controls display. ALL CENTERED displays and a beep is heard. Finding a Program Type (PTY) Station (RDS and XM™) For all Radios - 2008 GMC Envoy | Owner's Manual - Page 206
to stations with a stronger frequency. To turn alternate frequency off, press and hold BAND again for . This function does not apply for XM™ Satellite Radio Service. Finding a Program Type (PTY) Station (RDS and PTY times out and no longer displays, go back to Step 1. If both PTY and TRAF are - 2008 GMC Envoy | Owner's Manual - Page 207
ALERT! is not affected by tests of the emergency broadcast system. This feature is not supported by all RDS stations. TRAF (Traffic) (MP3 Radio broadcasts traffic announcements. This function does not apply to XM™ Satellite Radio Service. INFO (Information): If the current station has a message, the - 2008 GMC Envoy | Owner's Manual - Page 208
not displayed, parts of the message vehicle. A service fee is required to receive the XM service. For more information, contact XM at www.xmradio.com or call 1-800-929-2100 in the U.S. and www.xmradio.ca or call 1-877-438-9677 in Canada. Radio Messages CAL ERR (Calibration Error): The audio system - 2008 GMC Envoy | Owner's Manual - Page 209
where it stopped, if it was the last selected audio source. When a CD is inserted, the CD symbol clean it. Make sure the wiping process starts from the center to the edge. Care of Your CD and DVD Player top of the recorded CD with a marking pen. The use of CD lens cleaners for CDs is not advised, - 2008 GMC Envoy | Owner's Manual - Page 210
, do the following: 1. Turn the ignition on. 2. Press and release the LOAD button. 3. Wait for the indicator light, located to the right of the slot, to turn green. 4. Load a CD. Insert the CD part way into the slot, label side up. The player pulls the CD in. To insert multiple CDs, do - 2008 GMC Envoy | Owner's Manual - Page 211
to eject a CD after pushing it in manually. The player's 25-second eject timer resets at each press of eject, causing the player to not eject the CD until the 25-second time period has elapsed. 1 FLD x (Previous) (MP3 Radio): This pushbutton does not work while using a non-MP3 CD. { REV or 3 REV - 2008 GMC Envoy | Owner's Manual - Page 212
Repeat): With the repeat setting, one track or an entire CD can be repeated. To use repeat, do the following: RDM (Random): With the random setting, tracks can be rather than sequential, order, on one CD or on all of the CDs. To use random, do one of the following: • To play the tracks on the CD - 2008 GMC Envoy | Owner's Manual - Page 213
See "LOAD CD" listed previously in this section for more information. 2. Check to see that the CD changer is not in song list mode. 3. Select the desired CD by pressing the numbered pushbutton and then use the right SEEK or TYPE arrow to locate the track to be seat entertainment, if equipped). 3-79 - 2008 GMC Envoy | Owner's Manual - Page 214
to play in the order they were saved. Seek through the song list by using either SEEK or TYPE arrow. Seeking past the last saved track returns to LIST is removed from the display. Playing an MP3/WMA CD-R Disc Your vehicle's radio system may have the MP3/WMA feature. If it has this feature, it is - 2008 GMC Envoy | Owner's Manual - Page 215
of the following reasons: Listening to a DVD If your vehicle has the Rear Seat Entertainment (RSE) system and a DVD is playing, the DVD symbol displays or upside down. • The air is very humid. If so, wait about an hour and try again. • There could have been a problem while burning the CD. • The - 2008 GMC Envoy | Owner's Manual - Page 216
work. use more disc memory space than necessary. To conserve space on the disc, minimize the length of the file, folder, or playlist names. An MP3 CD that was recorded using no file folders can also be played. The system can support the root directory has compressed audio files, the directory displays - 2008 GMC Envoy | Owner's Manual - Page 217
information. The new track name displays. File System and Naming The song name that displays than 32 characters or four pages are shortened. Parts of words on the last page of text using the radio. These playlists are treated as special folders containing compressed audio song files. • If CD audio - 2008 GMC Envoy | Owner's Manual - Page 218
where it stopped, if it was the last selected audio source. As each new track starts to play, the tracks a current folder or playlist have played the system moves on to the next folder or playlist and and DISC RDM displays. This feature does not work with playlists. When in random, press and release - 2008 GMC Envoy | Owner's Manual - Page 219
o SEEK p: Press the left SEEK arrow to go to the start of the previous track. Press the right SEEK arrow to go to the start of the next track. Press either SEEK arrow for more than two seconds to search the previous or next tracks at two tracks per second. Release the button to stop searching and - 2008 GMC Envoy | Owner's Manual - Page 220
XM™ signal. When the vehicle is moved into an open area, the signal should return. Loading XM: The audio system is acquiring and processing audio and text data. No action is needed. This message should disappear shortly. CH Off Air: This channel is not currently in service. Tune to another channel - 2008 GMC Envoy | Owner's Manual - Page 221
the XM™ signal. When the vehicle is moved into an open area, the signal should return. Loading: The radio system is acquiring and processing audio and text data. No action is needed. This message should disappear shortly. Off Air: This channel is not currently in service. Tune to another channel. CH - 2008 GMC Envoy | Owner's Manual - Page 222
, or if Retained Accessory Power (RAP) is active. Headphones The RSE system includes two sets of wireless headphones. Each set of headphones has an ON/OFF control. An indicator light illuminates on the headphones when they are on. If the light does not illuminate, the batteries may need to be - 2008 GMC Envoy | Owner's Manual - Page 223
the door screw. If the headphones are to be stored for a long period of time, remove the batteries and keep them in a cool, dry place. To use the auxiliary inputs on the RSE system, connect an external auxiliary device to the color-coded RCA jacks and turn both the auxiliary device and the RSE - 2008 GMC Envoy | Owner's Manual - Page 224
screen is not in use, push it up into control. Notice: Avoid directly touching the video screen, as damage may occur. See "Cleaning the Video Screen" later in this section for more information. • Wireless Headphones • Vehicle Speakers • Vehicle wired headphone jacks on the Rear Seat Audio system - 2008 GMC Envoy | Owner's Manual - Page 225
not support DVD-RAM, DVD-ROM, and DVD Audio media. An error message displays if this type of media is inserted into the DVD player. When using the wired headphones, not included, if the front seat passengers play a CD in the Radio with Six-Disc CD (if equipped) or use XM™ Satellite Radio Service (if - 2008 GMC Envoy | Owner's Manual - Page 226
(Set-up Menu): Press to adjust the color, tint, brightness, contrast, display mode, and dynamic range compression. The dynamic range compression feature can be used to reduce loud audio and increase low audio produced by some DVDs. To change a feature back to the factory default setting, press this - 2008 GMC Envoy | Owner's Manual - Page 227
disc and the player automatically starts, if the vehicle is in ON/RUN, ACC/ACCESSORY, or when RAP is active. If a disc instructions. Ejecting a Disc (DVD Player without Sunroof) Press the c / X button on the DVD player faceplate to eject the disc. There is not an eject button on the remote control - 2008 GMC Envoy | Owner's Manual - Page 228
To use the remote control, aim it at the transmitter window below the video screen and press the desired button. Direct sunlight or very bright light can affect the ability of the RSE system to receive signals from the remote control. If the remote control does not seem to be working, the batteries - 2008 GMC Envoy | Owner's Manual - Page 229
z (Set-up Menu): Press to adjust the color, tint, brightness, contrast, display mode, and dynamic range compression. The dynamic range compression feature can be used to reduce loud audio and increase low audio produced by some DVDs. Press to display a menu that only appears while a DVD is being - 2008 GMC Envoy | Owner's Manual - Page 230
DVD or CD. To stop fast forwarding, press again. This button might not work while the DVD is playing the copyright information or the previews. Battery Replacement To change the remote control batteries, do the following: 1. Remove the battery compartment door located on the bottom of the remote - 2008 GMC Envoy | Owner's Manual - Page 231
format. The language in the audio Check the audio or or on the screen is wrong. language selection in the main DVD menu. The remote control does Check to make sure there not work. is no obstruction between the remote control and the transmitter window. Check the batteries to make sure they are not - 2008 GMC Envoy | Owner's Manual - Page 232
disc and DVD player. Problem Recommended Action Sometimes the wireless Check for obstructions, headphone audio cuts out low batteries, reception or buzzes. range, and interference from cellular telephone towers or by using your cellular telephone in the vehicle. Check that the headphones are facing - 2008 GMC Envoy | Owner's Manual - Page 233
or remote control are pressed and no disc is present in the DVD player. DVD Distortion There can be an experience with audio distortion operating one of these devices in or near the vehicle. * Excludes the OnStar® System. Cleaning the Video Screen Use isopropyl or rubbing alcohol on a clean cloth - 2008 GMC Envoy | Owner's Manual - Page 234
the source for the main radio to a remote source, the RSA is not able to control the source. The rear seat audio can be operated while the main radio is off. P (Power): Press this button to turn the system on or off. The rear speakers are muted when the power is turned on. u (Volume - 2008 GMC Envoy | Owner's Manual - Page 235
function is inactive if the front seat passengers are listening to a CD. Audio Steering Wheel Controls Theft-Deterrent Feature THEFTLOCK® is designed to discourage theft of your vehicle's radio. The feature works automatically by learning a portion of the Vehicle Identification Number (VIN). If the - 2008 GMC Envoy | Owner's Manual - Page 236
. Radio Reception Frequency interference and static during normal radio reception can occur if items such as cellphone chargers, vehicle convenience accessories, and external electronic devices are plugged into the accessory power outlet. If there is interference or static, unplug the item from the - 2008 GMC Envoy | Owner's Manual - Page 237
is open. Loading items onto the roof of your vehicle can interfere with the performance of the XM™ system. Make sure the XM™ Satellite Radio antenna is not obstructed. Fixed Mast Antenna The fixed mast antenna can withstand most car washes without being damaged. If the mast should ever become - 2008 GMC Envoy | Owner's Manual - Page 238
✍ NOTES 3-104 - 2008 GMC Envoy | Owner's Manual - Page 239
Recreational Vehicle Towing ...4-40 Electronically Controlled Air Suspension System ...4-44 Towing a Trailer ...4-45 Your Driving, the Road, and Your Vehicle ...4-2 Defensive Driving ...4-2 Drunk Driving ...4-2 Control of a Vehicle ...4-3 Braking ...4-3 Antilock Brake System (ABS) ...4-4 Braking in - 2008 GMC Envoy | Owner's Manual - Page 240
deaths are the result of someone who was drinking and driving. In recent years, more than 17,000 annual motor vehicle-related deaths have been associated with the use of alcohol, with about 250,000 people injured. {CAUTION: Assume that other road users (pedestrians, bicyclists, and other drivers - 2008 GMC Envoy | Owner's Manual - Page 241
had not been drinking. Braking See Brake System Warning Light on page 3-38. Braking action involves perception time and brakes; the weight of the vehicle; and the amount of brake force applied. Control of a Vehicle The following three systems help to control your vehicle while driving - brakes - 2008 GMC Envoy | Owner's Manual - Page 242
engine and begin to drive away, ABS will check itself. You might hear a momentary motor or clicking noise while this test is going on. This is normal. If there is a problem with ABS, this warning light will stay on. See Antilock Brake System Warning Light on page 3-39. Along with ABS, your vehicle - 2008 GMC Envoy | Owner's Manual - Page 243
have time to apply the brakes if that vehicle suddenly slows or stops. Always leave enough room up ahead to stop, even though you have ABS. Using ABS Do not pump the brakes. Just hold the brake pedal down firmly and let antilock work for you. You might feel the brakes vibrate or notice some noise - 2008 GMC Envoy | Owner's Manual - Page 244
at any one of the vehicle's brakes to help guide the vehicle in the direction which you are steering. When you first start your vehicle and begin to drive away, the system performs several diagnostic checks to insure there are no problems. You may hear or feel the system working. This is normal and - 2008 GMC Envoy | Owner's Manual - Page 245
Your vehicle will still have brake-traction control, but will not be able to use the engine speed management system. You may still hear system noises as a result of the brake-traction control coming on. If the controller detects excessive wheel spin in this mode, the StabiliTrak® indicator light may - 2008 GMC Envoy | Owner's Manual - Page 246
actively controlling vehicle stability). Traction Control Off Mode StabiliTrak® Off Mode (StabiliTrak® indicator light will flash when system first enters this mode). StabiliTrak® system activates using engine speed management, brake traction control, and/or stability control. StabiliTrak® system is - 2008 GMC Envoy | Owner's Manual - Page 247
cruise control. See Cruise Control on page 3-11. StabiliTrak® will turn off automatically if a problem is detected in the system. The StabiliTrak® light will come on and SERVICE STABILITRAK will be displayed on the DIC. For vehicles without a DIC, the StabiliTrak® light and the StabiliTrak® service - 2008 GMC Envoy | Owner's Manual - Page 248
steering assist because the engine stops or the system is not functioning, you can steer but it will take much more effort. Suppose you are steering through a sharp curve. Then you suddenly accelerate. Both control systems - steering and acceleration - have to do their work where the tires meet - 2008 GMC Envoy | Owner's Manual - Page 249
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 you cannot; there is not room. That is the time for evasive action - steering around the problem. Your vehicle can perform very well in emergencies - 2008 GMC Envoy | Owner's Manual - Page 250
• Wait your turn to pass a slow vehicle. • When you are being passed, ease to the right. Loss of Control If the level of the shoulder is only steering wheel to go straight down the roadway. Let us review what driving experts say about what happens when the three control systems - brakes, steering - 2008 GMC Envoy | Owner's Manual - Page 251
Off-Road Driving This off-road guide is for vehicles that have four-wheel drive. Also, see Braking on page 4-3. If your vehicle does not have four-wheel drive, you should not drive off-road unless you are on a level, solid surface. The airbag system is designed to work properly under a wide range of - 2008 GMC Envoy | Owner's Manual - Page 252
objects. Secure the cargo properly. Heavy loads on the roof raise the vehicle's center of gravity, service work done. Check to make sure all underbody shields, if the vehicle has them, are properly attached. Be sure you read all the information about your four-wheel-drive vehicle in this manual - 2008 GMC Envoy | Owner's Manual - Page 253
your vehicle over dry grass or other combustible materials that could catch fire from the heat of the vehicle's exhaust system. Traveling vehicle have a winch? If so, be sure to read 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 - 2008 GMC Envoy | Owner's Manual - Page 254
sweep the terrain for unexpected obstacles. Your ears need to listen for unusual tire or engine sounds. With your arms, hands, feet, and body, you will need to respond to vibrations and vehicle bounce. Controlling your vehicle is the key to successful off-road driving. One of the best ways to - 2008 GMC Envoy | Owner's Manual - Page 255
lights. You have to use wheel. Ruts, troughs, or other surface features can jerk the wheel out of your hands if you are not prepared. When you drive over bumps, rocks, or other obstacles, the wheels can leave the ground. If this happens, even with one or two wheels, you cannot control the vehicle - 2008 GMC Envoy | Owner's Manual - Page 256
that simply cannot be driven, no matter how well built the vehicle. incline with only a small change in elevation where you can Many hills are simply too steep for any vehicle. If you drive up them, you will stall. If you drive down them, you cannot control your speed. If you drive across them - 2008 GMC Envoy | Owner's Manual - Page 257
Use a low gear and get a firm grip on the steering wheel. • Use your headlamps even during the day. They make your vehicle brake pedal to stop the vehicle and keep it from rolling backwards. Also, apply the parking brake. • Ease up on your speed as you approach the top of the hill. • If the engine - 2008 GMC Envoy | Owner's Manual - Page 258
, Four-Wheel High or Four-Wheel Low position. • Never attempt to prevent a stall by shifting into NEUTRAL (N) to rev-up the engine and regain forward momentum. This will not work. Your vehicle will roll backwards very quickly and you could go out of control. Instead, apply the regular brake to stop - 2008 GMC Envoy | Owner's Manual - Page 259
vehicle headed straight down, and use a low gear. This way, engine drag can help the brakes and they will not have to do all the work. Descend slowly, keeping your vehicle under control called "free-wheeling." The brakes will have to do all the work and could overheat and fade. Your vehicle is much - 2008 GMC Envoy | Owner's Manual - Page 260
are some things to consider: • Surface conditions can be a problem when you drive across a hill. Loose gravel, muddy spots, or even wet grass and right wheels - may not prevent the vehicle from tilting and rolling over. Also, driving across an incline puts more weight on the downhill wheels. This - 2008 GMC Envoy | Owner's Manual - Page 261
, get out on the uphill side, even if the door there is harder to open. If you get out on the downhill side and the vehicle starts to roll over, you will be right in its path. If you have to walk down the slope, stay out of the path the - 2008 GMC Envoy | Owner's Manual - Page 262
, Sand, Snow, or Ice When you drive in mud, snow, or sand, the wheels will not get good traction. You cannot accelerate as quickly, turning is more difficult, and you will need longer braking distances. It is best to use a low gear when you are in mud - the deeper the mud, the lower - 2008 GMC Envoy | Owner's Manual - Page 263
can cause glazing and uneven braking. 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 - 2008 GMC Envoy | Owner's Manual - Page 264
likely to be impaired - by alcohol or drugs, with night vision problems, or by fatigue. Night driving tips include: Watch for animals. light to see the same thing at night as a 20-year-old. • Slow down and keep more space between you and other vehicles because your headlamps can only light - 2008 GMC Envoy | Owner's Manual - Page 265
could lose control of the vehicle. After driving through a large puddle of water or a car/vehicle wash, lightly apply the brake pedal until the brakes work normally. windshield wiping equipment in good shape. Keep the windshield washer fluid reservoir filled. Have good tires with proper tread depth. See - 2008 GMC Envoy | Owner's Manual - Page 266
, find a safe place to park your vehicle and rest. Other driving tips include: • Windshield Washer Fluid: Reservoir full? Windows clean - inside and outside? Wiper Blades: In good shape? Fuel, Engine Oil, Other Fluids: All levels checked? Lamps: Do they all work and are lenses clean? Tires: Are - 2008 GMC Envoy | Owner's Manual - Page 267
they would not work well. You would then have poor braking or even none going down a hill. You could crash. Always have the engine running and your vehicle in gear when you go downhill. • Keep your vehicle serviced and in good shape. • Check all fluid levels and brakes, tires, cooling system, and - 2008 GMC Envoy | Owner's Manual - Page 268
your vehicle. Include an ice scraper, a small brush or broom, a supply of windshield washer 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 wet ice can be even more trouble because it can offer the least - 2008 GMC Envoy | Owner's Manual - Page 269
gently. Try not to break the fragile traction. If you accelerate too fast, the drive wheels will spin and polish the surface under the tires even more. The Antilock Brake System (ABS) improves your vehicle's stability when you make a hard stop on a slippery road. Even though you have ABS, begin - 2008 GMC Envoy | Owner's Manual - Page 270
is blocking the exhaust pipe. And check around again from time to time to be sure snow does not collect there. Open a window just a little on the side of the vehicle that is away from the wind. This will help keep CO out. You can run the engine to keep warm, but be careful - 2008 GMC Envoy | Owner's Manual - Page 271
to free the vehicle, turn the traction system off and use the rocking method. {CAUTION: If you let your vehicle's tires spin at high speed, they can explode, and you or others could be injured. The vehicle can overheat, causing an engine compartment fire or other damage. Spin the wheels as little as - 2008 GMC Envoy | Owner's Manual - Page 272
vehicle does need to be towed out, see Towing Your Vehicle on page 4-40. Loading Your Vehicle It is very important to know how much weight your vehicle can carry. This weight is called the vehicle capacity weight and includes the weight of all occupants, cargo, and all nonfactory-installed options - 2008 GMC Envoy | Owner's Manual - Page 273
is attached to the center pillar (B-pillar). With the driver's door open, you will find the label attached below the door lock post (striker). The Tire and Loading Information label shows the number of occupant seating positions (A), and the maximum vehicle capacity weight (B) in kilograms and pounds - 2008 GMC Envoy | Owner's Manual - Page 274
combined weight of luggage and cargo being loaded on the vehicle. That weight may not safely exceed the available cargo and luggage load capacity calculated in Step 4. 6. If your vehicle will be towing a trailer, the load from your trailer will be transferred to your vehicle. Consult this manual to - 2008 GMC Envoy | Owner's Manual - Page 275
200 lbs (91 kg) × 5 = Available Cargo Weight = Total 1,000 lbs (453 kg) 1,000 lbs (453 kg) 0 lbs (0 kg) 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 - 2008 GMC Envoy | Owner's Manual - Page 276
as you load and unload your vehicle. See Electronically Controlled Air Suspension System on page 4-44 for additional information. Certification/Tire Label This is called Gross Vehicle Weight Rating (GVWR). The GVWR includes the weight of the vehicle, all occupants, fuel, cargo, and trailer tongue - 2008 GMC Envoy | Owner's Manual - Page 277
or rear Gross Axle Weight Rating (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. Using heavier suspension components to get added durability - 2008 GMC Envoy | Owner's Manual - Page 278
equipment on your vehicle. Recreational Vehicle Towing Recreational vehicle towing means towing your vehicle behind another vehicle - such as behind a motorhome. The two most common types of recreational vehicle towing are known as "dinghy towing" (towing your vehicle with all four wheels on the - 2008 GMC Envoy | Owner's Manual - Page 279
being towed, so it is important that you follow all the steps listed in this manual to dinghy tow your four-wheel-drive vehicle. Use the following procedure to tow your vehicle: 1. Shift the transmission to PARK (P). 2. Turn the engine off, but leave the ignition on. 3. Firmly set the parking brake - 2008 GMC Envoy | Owner's Manual - Page 280
-wheel-drive vehicles can be dolly towed with the rear wheels on the ground. Use the following procedure to tow your vehicle: 1. Drive the vehicle onto the tow dolly. 2. Shift the automatic transmission to PARK (P). 3. Turn the engine off, but leave the ignition on. 4. Firmly set the parking brake - 2008 GMC Envoy | Owner's Manual - Page 281
of Neutral" under Four-Wheel Drive on page 2-29. Rear Towing (Rear Wheels Off the Ground) (Two-Wheel or Four-Wheel-Drive Vehicles) Use the following procedure to tow your vehicle from the rear: 1. Drive the vehicle onto the dolly. 2. Firmly set the parking brake. See Parking Brake on page 2-33 for - 2008 GMC Envoy | Owner's Manual - Page 282
. Electronically Controlled Air Suspension System Your vehicle may be equipped with an electronically controlled air suspension system that automatically keeps your vehicle level as you load and unload. The system includes a compressor, two height sensors and two air springs supporting the rear - 2008 GMC Envoy | Owner's Manual - Page 283
that would not be covered by your warranty. Always follow the instructions in this section and check with your dealer/retailer for more information about towing a trailer with your vehicle. To identify the trailering capacity of your vehicle, you should read the information in "Weight of the Trailer - 2008 GMC Envoy | Owner's Manual - Page 284
carry. See "Weight of the Trailer Tongue" later in this section for more information. • Consider using a sway control. See "Hitches" later in this section. • Don't tow a trailer at all during the first 500 miles (800 km) your new vehicle is driven. Your engine, axle or other parts could be damaged - 2008 GMC Envoy | Owner's Manual - Page 285
additional optional equipment, passengers and cargo in the tow vehicle must be subtracted from the maximum trailer weight. Vehicle 2WD Envoy (4.2 L L6 Engine) Axle Ratio 3.42 3.73 4.10 2WD Envoy (5.3 L V8 Engine) 3.42 3.73 3.42 4WD Envoy (4.2 L L6 Engine) 3.73 4.10 4WD Envoy (5.3 L V8 Engine) 3.42 - 2008 GMC Envoy | Owner's Manual - Page 286
affects the total or gross weight of your vehicle. The Gross Vehicle Weight (GVW) includes the curb weight of the vehicle, any cargo you may carry in it, and the people who will be riding in the vehicle. If you have a lot of options, equipment, passengers or cargo in your vehicle, it will reduce the - 2008 GMC Envoy | Owner's Manual - Page 287
equipped with some of the latest options and you have a front seat passenger and two rear seat passengers with some luggage and gear in the vehicle as well. You may add 300 lbs (136 kg) to the front axle weight and 400 lbs (181 kg) to the rear axle weight. Your vehicle now weighs: You can expect - 2008 GMC Envoy | Owner's Manual - Page 288
at the rear edge of the driver's door or see Loading Your Vehicle for more information. 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 over the rear axle limit - 2008 GMC Envoy | Owner's Manual - Page 289
drag on the ground. (A) Body to Ground Distance, (B) Front of Vehicle When using a weight-distributing hitch, the hitch must be adjusted so the distance (A) remains the same both before and after coupling the trailer to the tow vehicle. If you use a step-bumper hitch, the bumper could be damaged in - 2008 GMC Envoy | Owner's Manual - Page 290
the air inside your vehicle. See Dual Climate Control System on page 3-21. Towing a trailer requires a certain amount of experience. Before setting out for the open road, you'll want to get to know your rig. Acquaint yourself with the feel of handling and braking with the added weight of - 2008 GMC Envoy | Owner's Manual - Page 291
back up slowly and, if possible, have someone guide you. Driving On Grades Reduce speed and shift to a lower gear before you start down a long or steep downgrade. If you don't shift down, you might have to use your brakes so much that they would get hot and no longer work well. You can tow in - 2008 GMC Envoy | Owner's Manual - Page 292
engine running, the vehicle can move suddenly. You or 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. Always put the shift lever fully in PARK (P) with the parking brake firmly set. If the transfer case on four-wheel - 2008 GMC Envoy | Owner's Manual - Page 293
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 these sections before you start your trip. Check periodically to see that all hitch nuts and bolts are tight. • start your engine - 2008 GMC Envoy | Owner's Manual - Page 294
: Back-up Lamps Red: Battery Feed Dark Blue: Electric Brakes If you need to tow a light-duty trailer with a standard four-way round pin connector, an adapter connector is available from your dealer. Your vehicle may be equipped with the seven-wire trailer towing harness. This harness has a seven - 2008 GMC Envoy | Owner's Manual - Page 295
Section 5 Service and Appearance Care Engine Fan Noise ...5-35 Power Steering Fluid ...5-36 Windshield Washer Fluid ...5-37 Brakes ...5-38 Battery ...5-41 Jump Starting ...5-42 Rear Axle ...5-46 Four-Wheel Drive ...5-47 Front Axle ...5-48 Headlamp Aiming ...5-49 Bulb Replacement ...5-49 Halogen - 2008 GMC Envoy | Owner's Manual - Page 296
...5-108 Vehicle Identification Number (VIN) ...5-108 Service Parts Identification Label ...5-108 Electrical System ...5-109 Add-On Electrical Equipment ...5-109 Headlamps ...5-109 Windshield Wiper Fuses ...5-109 Power Windows and Other Power Options ...5-109 Fuses and Circuit Breakers ...5-110 Engine - 2008 GMC Envoy | Owner's Manual - Page 297
antilock brakes, traction control and stability control. Some of these accessories could even cause malfunction or damage not covered by warranty. GM Accessories are designed to complement and function with other systems on your vehicle. Your GM dealer/retailer can accessorize your vehicle using - 2008 GMC Envoy | Owner's Manual - Page 298
. Engine exhaust, many parts and systems (including some inside the vehicle), many fluids, and some component wear by-products contain and/or emit these chemicals. Doing Your Own Service Work {CAUTION: You can be injured and your vehicle could be damaged if you try to do service work on a vehicle - 2008 GMC Envoy | Owner's Manual - Page 299
. To order the proper service manual, see Service Publications Ordering Information on page 7-16. Your vehicle has an airbag system. Before attempting to do your own service work, see Servicing Your Airbag-Equipped Vehicle on page 1-66. You should keep a record with all parts receipts and list the - 2008 GMC Envoy | Owner's Manual - Page 300
noise when you drive, commonly referred to as spark knock. If this occurs, use a gasoline rated at 87 octane or higher as soon as possible. If you are using gasoline rated at 87 octane or higher and you hear heavy knocking, the engine needs service. California Fuel If your vehicle is certified to - 2008 GMC Envoy | Owner's Manual - Page 301
the emission control system to work properly. In most cases, you should not have to add anything to the fuel. However, some gasolines contain only the minimum amount of additive required to meet U.S. Environmental Protection Agency regulations. To help keep fuel injectors and intake valves clean, or - 2008 GMC Envoy | Owner's Manual - Page 302
. To help avoid injuries to you and others, read and follow all the instructions on the pump island. Turn off your engine when you are refueling. Do not smoke if you are near fuel or refueling your vehicle. Do not use cellular phones. Keep sparks, flames, and smoking materials away from fuel. Do not - 2008 GMC Envoy | Owner's Manual - Page 303
panel to let you know if your gas cap is not properly installed. See Check Gas Cap Light on page 3-49 for more information. {CAUTION: If a fire starts while you are refueling, do not remove the nozzle. Shut off the flow of fuel by shutting off the pump or by notifying the station attendant. Leave - 2008 GMC Envoy | Owner's Manual - Page 304
filling is complete. • Do not smoke while pumping fuel. • Do not use a cellular phone while pumping fuel. {CAUTION: Things that burn 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 - 2008 GMC Envoy | Owner's Manual - Page 305
filler caps are on properly. Then lift the hood to relieve pressure on the prop rod. Remove the prop rod from its slot in the hood and return the prop to its retainer. Lower the hood 6 to 8 inches (15 to 20 cm) above the vehicle and release it to latch fully. Check to make - 2008 GMC Envoy | Owner's Manual - Page 306
Engine Compartment Overview When you open the hood on the 4.2L L6 engine, here is what you will see: 5-12 - 2008 GMC Envoy | Owner's Manual - Page 307
A. Engine Air Cleaner/Filter. See Engine Air Cleaner/Filter on page 5-21. B. Engine Coolant Recovery Tank. See Cooling System on page 5-30. C. Windshield Washer Fluid Reservoir. See "Adding Washer Fluid" under Windshield Washer Fluid on page 5-37. D. Power Steering Fluid Reservoir. See Power - 2008 GMC Envoy | Owner's Manual - Page 308
When you open the hood on the 5.3L V8 engine, here is what you will see: 5-14 - 2008 GMC Envoy | Owner's Manual - Page 309
Tank. See Cooling System on page 5-30. B. Engine Air Cleaner/Filter. See Engine Air Cleaner/Filter on page 5-21. C. Windshield Washer Fluid Reservoir. See "Adding Washer Fluid" under Windshield Washer Fluid on page 5-37. D. Engine Oil Dipstick. See "Checking Engine Oil" under Engine Oil on page - 2008 GMC Envoy | Owner's Manual - Page 310
Engine Oil Checking Engine Oil It is a good idea to check the 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. The engine oil dipstick handle is a yellow loop. See Engine Compartment Overview on page 5-12 for the - 2008 GMC Envoy | Owner's Manual - Page 311
or the cross-hatched area at the tip of the dipstick for the V8 engine, add at least one quart/liter of the recommended oil. This section explains what kind of oil to use. For engine oil crankcase capacity, see Capacities and Specifications on page 5-120. Notice: Do not add too much oil. If the - 2008 GMC Envoy | Owner's Manual - Page 312
What Kind of Engine Oil to Use Look for three things: • GM6094M Your vehicle's engine requires oil meeting GM Standard GM6094M. Look for and use only an oil that meets GM Standard GM6094M. • SAE 5W-30 As shown in the viscosity chart, SAE 5W-30 is best for your vehicle. These numbers on an oil - 2008 GMC Envoy | Owner's Manual - Page 313
life system to work properly, you must reset the system every time the oil is changed. When the system has calculated that oil life has been diminished, it will indicate that an oil change is necessary. A change engine oil light will come on, and, if your vehicle has a Driver Information Center (DIC - 2008 GMC Envoy | Owner's Manual - Page 314
for over a year. However, the engine oil and filter must be changed at least once a year and at this time the system must be reset. Your dealer/retailer has trained people who will perform this work using genuine parts and reset the system. It is also important to check the oil regularly and keep it - 2008 GMC Envoy | Owner's Manual - Page 315
into streams or bodies of water. Instead, recycle it by taking it to a place that collects used oil. If you have a problem properly disposing of used oil, ask your dealer/retailer, a service station, or a local recycling center for help. Engine Air Cleaner/Filter See Engine Compartment Overview on - 2008 GMC Envoy | Owner's Manual - Page 316
from the vehicle and lightly shake the filter to release loose dust and dirt. If the filter remains caked with dirt, a new filter is required. To inspect or replace the engine air cleaner/filter, do the following: 1. Remove the screws on the engine air cleaner/filter and lift off the cover. 2. Remove the - 2008 GMC Envoy | Owner's Manual - Page 317
temperature gage moves and then remains steady for 10 minutes. A cold fluid check can be made after the vehicle has been sitting for eight hours or more with the engine off, but this is used only as a reference. Let the engine run at idle for five minutes if outside temperatures are 50°F (10°C) or - 2008 GMC Envoy | Owner's Manual - Page 318
Checking the Fluid Level Prepare your vehicle as follows: 1. Park your vehicle on a level place. Keep the engine running. 2. With the parking brake applied, place the shift lever in PARK (P). 3. With your foot on the brake pedal, move the shift lever through each gear range, pausing for about three - 2008 GMC Envoy | Owner's Manual - Page 319
the incorrect automatic transmission fluid may damage your vehicle, and the damages may not be covered by your warranty. Always use the automatic transmission fluid listed in Recommended Fluids and Lubricants on page 6-12. 3. Check both sides of the dipstick, and read the lower level. The fluid level - 2008 GMC Envoy | Owner's Manual - Page 320
the proper engine temperature. Let the warning lights and gages work as they should. Notice: Using coolant other than DEX-COOL® may cause premature engine, heater core, or radiator corrosion. In addition, the engine coolant may require changing sooner, at the first maintenance service after each - 2008 GMC Envoy | Owner's Manual - Page 321
. Use only the proper mixture of the engine coolant listed in this manual for the cooling system. See Recommended Fluids and Lubricants on page 6-12 for more information. Checking Coolant The engine coolant recovery tank is in the engine compartment on the passenger's side of the vehicle. The cap - 2008 GMC Envoy | Owner's Manual - Page 322
information. If your vehicle has a Driver Information Center (DIC), the display will show an Engine Coolant Hot/Engine Overheated message. See DIC Warnings and Messages on page 3-53 for more information. {CAUTION: You can be burned if you spill coolant on hot engine parts. Coolant contains ethylene - 2008 GMC Envoy | Owner's Manual - Page 323
cool. Notice: If your engine catches fire because you keep driving with no coolant, your vehicle can be badly damaged. The costly repairs would not be covered by your warranty. Climb a long hill on a hot day. Stop after high-speed driving. Idle for long periods in traffic. Tow a trailer. If you - 2008 GMC Envoy | Owner's Manual - Page 324
the vehicle until it cools down. You may decide not to lift the hood but to get service help right away. Cooling System When you decide it is safe to lift the hood, here is what you will see: 5.3L V8 Engine shown, 4.2L L6 Engine similar A. Coolant Recovery Tank B. Radiator Pressure Cap C. Engine - 2008 GMC Envoy | Owner's Manual - Page 325
000 miles (50 000 km) or 24 months, whichever occurs first. Any repairs would not be covered by the warranty. Always use DEX-COOL® (silicate-free) coolant in the 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 - 2008 GMC Envoy | Owner's Manual - Page 326
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 the coolant in the coolant recovery tank is at the FULL COLD mark, start your vehicle. If the overheat warning continues, there - 2008 GMC Envoy | Owner's Manual - Page 327
under pressure, and if you turn the radiator pressure cap - even a little - they can come out at high speed. Never turn the cap when the cooling system, including the radiator pressure cap, is hot. Wait for the cooling system and radiator pressure cap to cool if you ever have to turn the pressure - 2008 GMC Envoy | Owner's Manual - Page 328
proper DEX-COOL® coolant mixture, up to the base of the filler neck. See Engine Coolant on page 5-26 for more information about the proper coolant mixture. 4. Then fill the coolant recovery tank to the FULL COLD mark. 5. Put the cap back on the coolant recovery tank, but leave the radiator pressure - 2008 GMC Envoy | Owner's Manual - Page 329
clutch is engaged, the fan spins faster to provide more air to cool the engine. In most everyday driving conditions the clutch is not engaged. This improves fuel economy and reduces fan noise. Under heavy vehicle loading, trailer towing, and/or high outside temperatures, the fan speed increases when - 2008 GMC Envoy | Owner's Manual - Page 330
system could indicate a problem. Have the system inspected and repaired. What to Use To determine what kind of fluid to use, see Recommended Fluids and Lubricants on page 6-12. Always use the proper fluid. Notice: Use of the incorrect fluid may damage your vehicle and the damages may not be covered - 2008 GMC Envoy | Owner's Manual - Page 331
-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 does not clean as well as washer fluid. Adding Washer Fluid Open the cap with the washer symbol on it. Add washer fluid until the tank is full. See Engine - 2008 GMC Envoy | Owner's Manual - Page 332
: 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 brake fluid only when work is done on the brake hydraulic system. See "Checking Brake Fluid" in this section. Refer - 2008 GMC Envoy | Owner's Manual - Page 333
not work well. This could cause a crash. Always use the proper brake fluid. Notice: • Using the wrong fluid can badly damage brake hydraulic system parts. For example, just a few drops of mineral-based oil, such as engine oil, in the brake hydraulic system can damage brake hydraulic system parts so - 2008 GMC Envoy | Owner's Manual - Page 334
in Capacities and Specifications on page 5-120. Brake linings should always be replaced as complete axle sets. {CAUTION: The brake wear warning sound means that soon the brakes will not work well. That could lead to an accident. When you hear the brake wear warning sound, have your vehicle serviced - 2008 GMC Envoy | Owner's Manual - Page 335
Replacing Brake System Parts The braking system on a vehicle is complex. Its many parts have to be of top quality and work well together if the vehicle is to have really good braking. Your vehicle was designed and tested with top-quality brake parts. When you replace parts of the braking system - - 2008 GMC Envoy | Owner's Manual - Page 336
jump start procedure. Put an automatic transmission in PARK (P) or a manual transmission in NEUTRAL before setting the parking brake. If you have a four-wheel-drive vehicle, be sure the transfer case is not in NEUTRAL. {CAUTION: Batteries can hurt you. They can be dangerous because: • They contain - 2008 GMC Envoy | Owner's Manual - Page 337
terminal. You should always use this remote terminal instead of the terminal on the battery. The remote negative (−) terminal is located on the front engine lift bracket on vehicles with the 4.2L L6 engine or the engine accessory drive bracket for vehicles with the 5.3L V8 engine, and is marked GND - 2008 GMC Envoy | Owner's Manual - Page 338
(−) terminal of the good battery. Use a remote negative (−) terminal if the vehicle has one. Do not let the other end touch anything until the next step. The other end of the negative (−) cable does not go to the dead battery. It goes to a heavy, unpainted metal engine part or to the remote negative - 2008 GMC Envoy | Owner's Manual - Page 339
11. Try to start the vehicle that had the dead battery. If it will not start after a few tries, it probably needs service. 4.2L L6 Engine 5.3L V8 Engine The remote negative (−) terminal is located on the front engine lift bracket for the 4.2L L6 engine, and on the accessory drive bracket for the - 2008 GMC Envoy | Owner's Manual - Page 340
other vehicle. Rear Axle When to Check Lubricant It is not necessary to regularly check rear 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. Jumper Cable Removal A. Heavy, Unpainted Metal Engine Part or - 2008 GMC Envoy | Owner's Manual - Page 341
Four-Wheel Drive Transfer Case When to Check Lubricant It is not necessary to regularly check 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. How to Check Lubricant To get an accurate reading, the vehicle - 2008 GMC Envoy | Owner's Manual - Page 342
Lubricant It is not necessary to regularly check 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. To get an accurate reading, the vehicle should be on a level surface. If the level is below the - 2008 GMC Envoy | Owner's Manual - Page 343
of lubricant to use, see Recommended and should need no further adjustment. However, if your vehicle is damaged in a crash, the headlamp aim may be re-aimed, it is recommended that you take the vehicle to your dealer/retailer for service. Halogen Bulbs {CAUTION: Halogen bulbs have pressurized gas - 2008 GMC Envoy | Owner's Manual - Page 344
the hood. Hood Release on page 5-11 for more information. 2. Lift the two headlamp retaining clips. 4. Remove the cover from the headlamp bulb. 5. Remove the bulb socket that needs to headlamp assembly. 3. Pull the headlamp assembly away from the vehicle to access the electrical connectors. 5-50 - 2008 GMC Envoy | Owner's Manual - Page 345
the liftgate. See Liftgate/Liftglass on page 2-12 for more information. 2. Remove the two screws from the taillamp assembly. 3. Pull the assembly away from the vehicle. 5-51 - 2008 GMC Envoy | Owner's Manual - Page 346
the three screws. 9. Reconnect the wiring harness. 10. Reinstall the taillamp assembly by lining up the locator pins with the retainers in the body of the vehicle. 11. Reinstall the two screws and tighten. 12. Close the liftgate. 4. Unclip the wiring harness (A) and remove the three socket retaining - 2008 GMC Envoy | Owner's Manual - Page 347
-Up Lamps The back-up lamps are located in the rear bumper. To replace a bulb: License Plate Lamp 1. Remove the two screws holding the license plate lamp lens. 1. Reach behind the rear bumper and locate the bulb socket. 2. Turn it counterclockwise to remove from the lamp assembly. 3. Holding the - 2008 GMC Envoy | Owner's Manual - Page 348
Headlamps Low-Beam Headlamps Bulb Number 3157 194 3457 W5W 9005 HB3 9006 HB4 be covered by your warranty. Do not allow the wiper blade arm to touch the windshield. 1. To remove the old wiper blades, lift the wiper arm until it locks into a vertical position. For replacement bulbs not listed here - 2008 GMC Envoy | Owner's Manual - Page 349
end last, into the end with two blade claws (A). Slide the insert all the way through the blade claws at the opposite end (B). The plastic caps (C) will be forced off as the insert is fully inserted. 5. Be sure that the notches are locked by the bottom claws. Make sure that all - 2008 GMC Envoy | Owner's Manual - Page 350
wiper arm in position and push the blade away from the wiper arm. 1. Lift the wiper blade assembly up and out of the park rest position. 2. Pull not lock in a vertical position, so care should be used when pulling it away from the vehicle. 4. Replace the wiper blade. 5. Return the wiper blade - 2008 GMC Envoy | Owner's Manual - Page 351
your tire warranty and where to obtain service, see your vehicle Warranty booklet for details. CAUTION: (Continued used tires are dangerous. • Overloading your tires can cause overheating as a result of too much flexing. You could have an air-out and a serious accident. See Loading Your Vehicle - 2008 GMC Envoy | Owner's Manual - Page 352
wheel assembly damage can occur when coming into contact with road hazards like, potholes, or sharp edged objects, or when sliding into a curb. Your vehicle warranty does not cover and numbers used to define a particular tire's width, height, aspect ratio, construction type, and service description. - 2008 GMC Envoy | Owner's Manual - Page 353
(B) TPC Spec (Tire Performance is in compliance with the U.S. Department of Transportation Motor Vehicle Safety Standards. (D) Tire Identification Number (TIN): can be carried and the maximum pressure needed to support that load. For information on recommended tire pressure see Inflation - Tire - 2008 GMC Envoy | Owner's Manual - Page 354
parts . (D) Construction Code: A letter code is used to indicate the type of ply construction in Diameter of the wheel in inches. (F) Service Description: The service description indicates the load system. The letter P as the first character in the tire size means a passenger vehicle tire engineered - 2008 GMC Envoy | Owner's Manual - Page 355
heat from driving. See Inflation - Tire Pressure on page 5-64. Curb Weight: The weight of a motor vehicle with standard and optional equipment including the maximum capacity of fuel, oil, and coolant, but without passengers and cargo. DOT Markings: A code molded into the sidewall of a tire signifying - 2008 GMC Envoy | Owner's Manual - Page 356
permissible inflation pressure for that tire. Maximum Loaded Vehicle Weight: The sum of curb weight, accessory weight, vehicle capacity weight, and production options weight. Normal Occupant Weight: The number of occupants a vehicle is designed to seat multiplied by 150 lbs (68 kg). See Loading Your - 2008 GMC Envoy | Owner's Manual - Page 357
than the same moldings on the other sidewall of the tire. Passenger (P-Metric) Tire: A tire used on passenger cars and some light duty trucks and multipurpose vehicles. Recommended Inflation Pressure: Vehicle manufacturer's recommended tire inflation pressure as shown on the tire placard. See Inflation - 2008 GMC Envoy | Owner's Manual - Page 358
77. Vehicle Capacity Weight: The number of designated seating positions multiplied by 150 lbs (68 kg) plus the rated cargo load. See Loading Your Vehicle on page 4-34. Vehicle Maximum Load on the Tire: Load on an individual tire due to curb weight, accessory weight, occupant weight, and cargo weight - 2008 GMC Envoy | Owner's Manual - Page 359
cold tire inflation pressure, shown on the label, is the minimum amount of air pressure needed to support your vehicle's maximum load carrying capacity. For additional information regarding how much weight your vehicle can carry, and an example of the Tire and Loading Information label, see Loading - 2008 GMC Envoy | Owner's Manual - Page 360
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 speed operation. When speed limits and road conditions are such that a vehicle can be driven at high speeds, make sure the tires are rated - 2008 GMC Envoy | Owner's Manual - Page 361
. See your warranty booklet for more information. Tire Pressure Monitor System The Tire Pressure Monitor System (TPMS) uses radio and sensor technology to check tire pressure levels. The TPMS sensors monitor the air pressure in your vehicle's tires and transmit tire pressure readings to a receiver - 2008 GMC Envoy | Owner's Manual - Page 362
installation of replacement or alternate tires or wheels on the vehicle that prevent the TPMS from functioning properly. Always check the TPMS malfunction telltale after replacing one or more tires or wheels on your vehicle to ensure that the replacement or alternate tires and wheels allow the TPMS - 2008 GMC Envoy | Owner's Manual - Page 363
The TPMS is designed to alert the driver if a low tire pressure condition exists. If your vehicle has the Driver Information Center (DIC) steering wheel control buttons, tire pressure levels may also be checked through the DIC. See "Tire Pressures" under DIC Operation and Displays on page 3-50. When - 2008 GMC Envoy | Owner's Manual - Page 364
. The DIC message and the TPMS malfunction light should go off when the TPMS sensors are installed and the sensor matching process is performed successfully. See your dealer/retailer for service. vehicle's original equipment tires or wheels. Tires and wheels other than those recommended for your - 2008 GMC Envoy | Owner's Manual - Page 365
the maximum inflation pressure indicated on the tire's sidewall. To decrease air-pressure out of a tire you can use the pointed end of the valve cap, a pencil-style air pressure gage, or a key. You have two minutes to match the first tire/wheel position, and five minutes overall to match all four tire - 2008 GMC Envoy | Owner's Manual - Page 366
tires to the recommended air pressure level as indicated on the Tire and Loading Information label. 11. Put the valve caps back on the valve stems Any time you notice unusual wear, rotate your tires as soon as possible and check wheel alignment. Also check for damaged tires or wheels. See When It - 2008 GMC Envoy | Owner's Manual - Page 367
Rust or dirt on a wheel, or on the parts to which it is fastened, can make wheel nuts become loose after 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 - 2008 GMC Envoy | Owner's Manual - Page 368
same performance and vehicle safety, during normal use, as the original tires. GM's exclusive TPC Spec system considers over a dozen critical specifications that impact the overall performance of your vehicle, including brake system performance, ride and handling, traction control, and tire pressure - 2008 GMC Envoy | Owner's Manual - Page 369
could develop cracks after many miles of driving. A tire and/or wheel could fail suddenly, causing a crash. Use only radial-ply tires with the wheels on your vehicle. If you must replace your vehicle's tires with those that do not have a TPC Spec number, make sure they are the same size, load range - 2008 GMC Envoy | Owner's Manual - Page 370
that you will crash and suffer serious injury. Only use GM specific wheel and tire systems developed for your vehicle, and have them properly installed by a GM certified technician. See Buying New Tires on page 5-74 and Accessories and Modifications on page 5-3 for additional information. Different - 2008 GMC Envoy | Owner's Manual - Page 371
(UTQG) system does not apply to deep tread, winter-type 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 - 2008 GMC Envoy | Owner's Manual - Page 372
to dissipate heat when tested under controlled conditions on a specified indoor laboratory test wheel. Sustained high temperature can cause car tires must meet under the Federal Motor Vehicle Safety Standard No. 109. Grades B and A represent higher levels of performance on the laboratory test wheel - 2008 GMC Envoy | Owner's Manual - Page 373
cause problems with bearing life, brake cooling, speedometer or odometer calibration, headlamp aim, bumper height, vehicle ground clearance, and tire or tire chain clearance to the body and chassis. See Changing a Flat Tire on page 5-82 for more information. Used Replacement Wheels {CAUTION: Using - 2008 GMC Envoy | Owner's Manual - Page 374
tire chains. There is not enough clearance. Tire chains used on a vehicle without the proper amount of clearance can cause damage to the brakes, suspension, or other vehicle parts. The area damaged by the tire chains could cause you to lose control of your vehicle and you or others may be injured in - 2008 GMC Envoy | Owner's Manual - Page 375
44 for more information. To reinstall the cover, line up the tabs at the back of the cover, put it in place and latch the tabs. A continuous flashing indicator light may also indicate a malfunction in the air suspension system. See Electronically Controlled Air Suspension System on page 4-44 for more - 2008 GMC Envoy | Owner's Manual - Page 376
require the same correction you would use in a skid. In any rear blowout remove your foot from the accelerator pedal. Get the vehicle under control by steering the way you want the vehicle to go. It may be very bumpy and noisy, but you can still steer. Gently brake to a stop, well off the road - 2008 GMC Envoy | Owner's Manual - Page 377
(Continued) When your vehicle has a flat tire, use this as a guide to assist you in the placement of wheel blocks. 3. If you have a four-wheel-drive vehicle, be sure the transfer case is in a drive gear - not in NEUTRAL. 4. Turn off the engine and do not restart while the vehicle is raised. 5. Do - 2008 GMC Envoy | Owner's Manual - Page 378
Removing the Spare Tire and Tools The tools you will be using include the wheel wrench (A), wheel blocks (B), extension(s) (socket end) (C), handle (jack end) (D), and jack (E). To remove the underbody-mounted spare from your vehicle: The jacking equipment needed to remove the spare tire is stored - 2008 GMC Envoy | Owner's Manual - Page 379
hole. 1. Open the liftgate. See Liftgate/Liftglass on page 2-12 for more information. 2. Attach the wheel wrench (A) to the extension (C). It is exposed when the rear gate is open and is just above the rear bumper. Be sure the socket end of the extension (C) connects to the hoist shaft. 5-85 - 2008 GMC Envoy | Owner's Manual - Page 380
tire has been completely lowered, and pull it through the wheel opening. 6. Pull the tire out from under the vehicle. Notice: If you drive away before the spare tire or secondary latch system cable has been reinstalled, you could damage your vehicle. Always reinstall this cable before driving your - 2008 GMC Envoy | Owner's Manual - Page 381
Flat Tire and Installing the Spare Tire 1. Do a safety check before proceeding. See Changing a Flat Tire on page 5-82 for more information. 2. Use the flat end of the wheel wrench to carefully pry off the center cap. 3. Using the wheel wrench, loosen all the wheel nuts by turning the nuts one turn - 2008 GMC Envoy | Owner's Manual - Page 382
or killed. Never get under a vehicle when it is supported only by a jack. {CAUTION: Raising your vehicle with the jack improperly positioned can damage the vehicle and even make the vehicle fall. To help avoid personal injury and vehicle damage, be sure to fit the jack lift head into the proper - 2008 GMC Envoy | Owner's Manual - Page 383
; but be sure to use a scraper or wire brush later, if needed, to get all the rust or dirt off. See Changing a Flat Tire on page 5-82. 9. Remove any rust or dirt from the wheel bolts, mounting surfaces and spare wheel. {CAUTION: Rust or dirt on a wheel, or on the parts to which it is - 2008 GMC Envoy | Owner's Manual - Page 384
. Make sure the cone shaped end is toward the wheel. 12. Tighten each nut by hand until the wheel is held against the hub. If a nut cannot be turned by hand, use the wheel wrench and see your dealer as soon as possible. 13. Lower the vehicle by turning the jack handle counterclockwise. Lower the - 2008 GMC Envoy | Owner's Manual - Page 385
nuts can lead to brake pulsation 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 on page 5-120 for the wheel nut torque specification. 14. Use the wrench to tighten the - 2008 GMC Envoy | Owner's Manual - Page 386
system. It is designed to stop the spare tire from suddenly falling off your vehicle if the cable holding the spare tire is damaged. For the secondary latch to work, the tire must be stored with the valve stem pointing up. See Storing a Flat or Spare Tire and Tools on page 5-96 for instructions - 2008 GMC Envoy | Owner's Manual - Page 387
cannot overtighten the cable. 3. Loosen the cable by turning the wheel wrench counterclockwise three or four turns. 4. Repeat this procedure at wheel wrench to the jack and place it under the vehicle towards the front of the rear bumper. Position the center lift point of the jack under the center - 2008 GMC Envoy | Owner's Manual - Page 388
raise the jack until it lifts the end fitting. 8. Continue raising the jack until the spare tire stops moving upward and is held firmly in place. The secondary latch has released and the spare tire is balancing on the jack. 9. Lower the jack by turning the wheel wrench counterclockwise. Keep lowering - 2008 GMC Envoy | Owner's Manual - Page 389
the spare tire or secondary latch system cable has been reinstalled, you could damage your vehicle. Always reinstall this cable before driving your vehicle. 14. Turn the wheel wrench clockwise to raise the cable back up if the cable is hanging under the vehicle. Have the hoist assembly inspected as - 2008 GMC Envoy | Owner's Manual - Page 390
needs to be stored with the valve stem pointing up. If the spare tire is stored with the valve stem pointing downward, its secondary latch will not work properly and the spare tire could loosen and suddenly fall from your vehicle. If this happened when your vehicle was being driven, the tire might - 2008 GMC Envoy | Owner's Manual - Page 391
the extension (C) through the hole just above the rear bumper at a 45 degree angle downward. Connect the socket end of the extension to the hoist shaft (B). 6. Raise the tire fully against the underside of the vehicle. Continue turning the wheel wrench (A) clockwise until you hear two clicks or feel - 2008 GMC Envoy | Owner's Manual - Page 392
try to turn (B) the tire. If the tire moves, use the wheel wrench and socket end of the extension to tighten the cable. 8. Return the equipment to the proper location in the vehicle as shown next. A. Handle B. Wheel Wrench C. Instruction Label D. Extension(s) E. Knob F. Wheel Blocks and Jack 5-98 - 2008 GMC Envoy | Owner's Manual - Page 393
flated spare tire. A spare tire may lose air over time, so check its inflation pressure regularly. See Inflation - Tire Pressure on page 5-64 and Loading Your Vehicle on page 4-34 for information regarding proper tire inflation and loading your vehicle. For instruction on how to remove, install or store - 2008 GMC Envoy | Owner's Manual - Page 394
solvents that may become concentrated in your vehicle's breathing space. Before using cleaners, read and adhere to all safety instructions on the label. While cleaning your vehicle's interior, maintain adequate ventilation by opening your vehicle's doors and windows. Dust may be removed from small - 2008 GMC Envoy | Owner's Manual - Page 395
and attracts dirt. For liquid cleaners, about 20 drops per gallon (3.78 L) of water is a good guide. • For solid dry soils: remove as much as possible and then vacuum. To clean, use the following instructions: 1. Saturate a lint-free, clean white cloth with water or club soda. 2. Wring the cloth to - 2008 GMC Envoy | Owner's Manual - Page 396
has been completed, a paper towel can be used to blot excess moisture from the fabric or carpet. Instrument Panel, Vinyl, and Other Plastic Surfaces not recommended. Do not use silicone or wax-based products, or those containing organic solvents to clean your vehicle's interior because they can - 2008 GMC Envoy | Owner's Manual - Page 397
emblems or nameplates on your vehicle. Check the cleaning product label. If it states that it should not be used on plastic parts, do not use it on your vehicle or damage may occur and it would not be covered by the warranty. Do not wash the vehicle in direct sunlight. Use a car washing soap. Do not - 2008 GMC Envoy | Owner's Manual - Page 398
paint finish looking new by keeping your vehicle garaged or covered whenever possible. Cleaning Exterior Lamps/Lenses Use only lukewarm or cold water, a soft cloth and a car washing soap to clean exterior lamps and lenses. Follow instructions under Washing Your Vehicle on page 5-103. Finish Care - 2008 GMC Envoy | Owner's Manual - Page 399
the aluminum or chrome-plated wheels. The repairs would not be covered by your warranty. Never drive a vehicle equipped with aluminum or chrome-plated wheels through an automatic car wash that uses silicone carbide tire cleaning brushes. Aluminum Wheels Notice: If you use strong soaps, chemicals - 2008 GMC Envoy | Owner's Manual - Page 400
. Your dealer/retailer or an underbody car washing system can do this for you. Sheet Metal Damage If the vehicle is damaged and requires sheet metal repair or replacement, make sure the body repair shop applies anti-corrosion material to parts repaired or replaced to restore corrosion protection - 2008 GMC Envoy | Owner's Manual - Page 401
Polish White Sidewall Tire Cleaner Vinyl Cleaner Glass Cleaner Chrome 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 and raised white lettering. Cleans vinyl - 2008 GMC Envoy | Owner's Manual - Page 402
Identification The eighth character in the VIN is the engine code. This code helps you identify your vehicle's engine, specifications, and replacement parts. See Capacities and Specifications on page 5-120 for your vehicle's engine code. Service Parts Identification Label This label is on the inside of - 2008 GMC Envoy | Owner's Manual - Page 403
and the damage would not be covered by your warranty. Some add-on electrical equipment can keep other components from working as they should. Add-on equipment can drain your vehicle's battery, even if your vehicle is not operating. Your vehicle has an airbag system. Before attempting to add anything - 2008 GMC Envoy | Owner's Manual - Page 404
under the hood in the engine compartment on the driver side of the vehicle. See Engine Compartment Overview on page 5-12 for more information on location. Remove the primary cover by pressing the two locking tabs. Remove the secondary cover by snapping off while lifting. To reinstall the fuse panel - 2008 GMC Envoy | Owner's Manual - Page 405
L6 Engine Fuses 1 2 Usage Electrically-Controlled Air Suspension Passenger Side High-Beam Headlamp Fuses 3 4 Usage Passenger Side Low-Beam Headlamp Back-Up Trailer Lamps 5-111 - 2008 GMC Envoy | Owner's Manual - Page 406
Panel Cluster, Driver Information Center Automatic Shift Lock Control System Transmission Control Module Canister Backup Powertrain Control Module 1 Oxygen Sensor Air Conditioning Truck Body Controller 1 Trailer Antilock Brakes (ABS) Ignition A Blower Motor Blower Passenger Side Trailer Turn - 2008 GMC Envoy | Owner's Manual - Page 407
Usage Driver Side Trailer Turn Hazard Flashers Headlamp Driver Module Air Injection Reactor (AIR) Solenoid Air Injection Reactor (AIR) Pump Vehicle Stability Enhancement System (StabiliTrak®) Regulated Voltage Control Usage Headlamp Wiper Rear Window Wiper/Washer Fog Lamps Horn Relays 41 42 43 44 - 2008 GMC Envoy | Owner's Manual - Page 408
V8 Engine Fuses 1 2 Usage Electrically-Controlled Air Suspension Passenger Side High-Beam Headlamp Fuses 3 4 Usage Passenger Side Low-Beam Headlamp Back-Up Trailer Lamps 5-114 - 2008 GMC Envoy | Owner's Manual - Page 409
55 Usage Instrument Panel Cluster, Driver Information Center Automatic Shift Lock Control System Engine 1 Backup Powertrain Control Module 1 Powertrain Control Module Air Conditioning Injector Bank A Trailer Antilock Brakes (ABS) Ignition A Blower Motor Ignition B Passenger Side Trailer Turn Driver - 2008 GMC Envoy | Owner's Manual - Page 410
Pedal Vehicle Stability Enhancement System (StabiliTrak®) Regulated Voltage Control Relays 47 49 60 Miscellaneous 48 Starter Usage Electric Adjustable Pedal Powertrain Usage Instrument Panel Battery Rear Underseat Fuse Block Usage Headlamp Wiper Rear Window Wiper/Washer Fog Lamps Horn Fuel Pump - 2008 GMC Envoy | Owner's Manual - Page 411
Fuses 01 02 03 04 Usage Passenger Door Control Module Driver Door Control Module Liftgate Module 2 Truck Body Controller 3 Fuses 05 06 07 08 Blank Usage Rear Fog Lamps Truck Body Controller 2 Power Seats 5-117 - 2008 GMC Envoy | Owner's Manual - Page 412
Lamps Locks Liftgate Module/Driver Seat Module Blank Fuses 21 23 24 25 26 27 28 29 30 31 32 33 34 Lock Blank Unlock Blank Blank Usage OnStar® Overhead Battery/OnStar® System Sunroof Not Used Parking Lamps Truck Body Controller Accessory Truck Body Controller 5 Front Wipers Vehicle Stop 5-118 - 2008 GMC Envoy | Owner's Manual - Page 413
Air Conditioning 1 Truck Body Controller 4 Radio Trailer Park Fuses 43 44 45 46 47 48 49 50 51 52 Usage Passenger Side Turn Signal Heat Ventilation Air Conditioning Rear Fog Lamps Auxiliary Power 1 Ignition 0 Four-Wheel Drive Blank Truck Body Controller Ignition Brakes Truck Body Controller - 2008 GMC Envoy | Owner's Manual - Page 414
and Lubricants on page 6-12 for more information. Application Capacities English Metric Air Conditioning Refrigerant R134a Cooling System 4.2L L6 5.3L V8 Engine Oil with Filter 4.2L L6 5.3L V8 For the air conditioning system refrigerant charge amount, see the refrigerant caution label located - 2008 GMC Envoy | Owner's Manual - Page 415
100 lb ft Metric 83.3 L 1.8 L 4.7 L 140 Y All capacities are approximate. When adding, be sure to fill to the appropriate level, as recommended in this manual. Recheck the fluid level after filling. Engine Specifications Engine 4.2L L6 5.3L V8 VIN Code S M Transmission Automatic Automatic Spark Plug - 2008 GMC Envoy | Owner's Manual - Page 416
✍ NOTES 5-122 - 2008 GMC Envoy | Owner's Manual - Page 417
Section 6 Maintenance Schedule Owner Checks and Services ...6-9 At Each Fuel Fill ...6-9 At Least Once a Month ...6-9 At Least Once a Year ...6-10 Recommended Fluids and Lubricants ...6-12 Maintenance Replacement Parts ...6-14 Engine Drive Belt Routing ...6-15 Maintenance Record ...6-16 - 2008 GMC Envoy | Owner's Manual - Page 418
Notice: Maintenance intervals, checks, inspections, replacement parts, and recommended fluids and lubricants as prescribed in this manual are necessary to keep your vehicle in good working condition. Any damage caused by failure to follow scheduled maintenance might not be covered by warranty. Your - 2008 GMC Envoy | Owner's Manual - Page 419
very hot, dusty weather. You might use your vehicle in making deliveries. Or you might drive it to work, to do errands, or in many other ways. Because of all the different ways people use their vehicles, maintenance needs vary. You might need more frequent checks and replacements. So please read the - 2008 GMC Envoy | Owner's Manual - Page 420
know that trained and supported service technicians will perform the work using genuine parts. If you want to purchase service information, see Service Publications Ordering Information on page 7-16. Owner Checks and Services on page 6-9 tells you what should be checked, when to check it, and what - 2008 GMC Envoy | Owner's Manual - Page 421
Least Once a Month on page 6-9. Inspect brake system. See footnote (a). Check engine coolant and windshield washer fluid levels and add fluid as needed. Perform any needed additional services. See "Additional Required Services" in this section. Inspect suspension and steering components. See footnote - 2008 GMC Envoy | Owner's Manual - Page 422
Services Service and Miles (Kilometers) Inspect fuel system for damage or leaks. Inspect exhaust system for loose or damaged components. Replace engine air cleaner filter. See Engine Air Cleaner/Filter Emission Control Service. V8 engine only: Inspect spark plug wires. An Emission Control Service. 6-6 - 2008 GMC Envoy | Owner's Manual - Page 423
Additional Required Services (cont'd) Service and Miles (Kilometers) Engine cooling system service (or every five years, whichever occurs first). An Emission Control Service. See footnote (i). Inspect engine accessory drive belt. An Emission Control Service. See footnote (l). 25,000 (40 000) 50,000 ( - 2008 GMC Envoy | Owner's Manual - Page 424
/retailer perform this service. See Engine Coolant on page 5-26 for what to use. Inspect hoses. Clean radiator, condenser, pressure cap, and filler neck. Pressure test the cooling system and pressure cap. (j) A fluid loss in any vehicle system could indicate a problem. Have the system inspected and - 2008 GMC Envoy | Owner's Manual - Page 425
Owner Checks and Services These owner checks and services should be performed at the intervals specified to help ensure the safety, dependability, and emission control performance of your vehicle. Your dealer/retailer can assist you with these checks and services. Be sure any necessary repairs are - 2008 GMC Envoy | Owner's Manual - Page 426
Brake on page 2-33. Do not use the accelerator pedal, and be ready to turn off the engine immediately if it starts. 3. Try to start the engine in each gear. The vehicle should start only in PARK (P) or NEUTRAL (N). If the vehicle starts in any other position, contact your dealer/retailer for service - 2008 GMC Envoy | Owner's Manual - Page 427
: With the engine running, shift to PARK (P). Then release the parking brake followed by the regular brake. Contact your dealer/retailer if service is required. Parking Brake and Automatic Transmission Park (P) Mechanism Check {CAUTION: When you are doing this check, your vehicle could begin to - 2008 GMC Envoy | Owner's Manual - Page 428
vehicle's engine, see Engine Oil on page 5-16. 50/50 mixture of clean, drinkable ® Engine Coolant water and use only DEX-COOL Coolant. See Engine Coolant on page 5-26. Hydraulic Brake Delco® Supreme 11 Brake Fluid or System equivalent DOT-3 brake fluid. Windshield Optikleen® Washer Solvent. Washer - 2008 GMC Envoy | Owner's Manual - Page 429
Hood and Door Hinges, Body Door Hinge Pins, Liftgate Hinge and Linkage, Folding Seats, and Fuel Door Hinge Outer Tailgate Handle Pivot Points and Hinges Weatherstrip Conditioning Fluid/Lubricant Multi-Purpose Lubricant, Superlube (GM Part No. U.S. 12346241, in Canada 10953474). Multi-Purpose - 2008 GMC Envoy | Owner's Manual - Page 430
, or specification can be obtained from your dealer/retailer. Part Automatic Transmission Filter Kit Engine Air Cleaner/Filter Engine Oil Filter 4.2L L6 Engine 5.3L V8 Engine Spark Plugs 4.2L L6 Engine 5.3L V8 Engine Wiper Blades Front - 22 inches (56 cm) Rear - 16 inches (41 cm) 15214346 15160740 - 2008 GMC Envoy | Owner's Manual - Page 431
Engine Drive Belt Routing 5.3L V8 Engine 4.2L V6 Engine 6-15 - 2008 GMC Envoy | Owner's Manual - Page 432
are performed, record the date, odometer reading, who performed the service, and the type of services performed in the boxes provided. See Maintenance Requirements on page 6-2. Any additional information from Owner Checks and Services on page 6-9 can be added on the following record pages. You - 2008 GMC Envoy | Owner's Manual - Page 433
Maintenance Record (cont'd) Date Odometer Reading Serviced By Maintenance I or Maintenance II Services Performed 6-17 - 2008 GMC Envoy | Owner's Manual - Page 434
Maintenance Record (cont'd) Date Odometer Reading Serviced By Maintenance I or Maintenance II Services Performed 6-18 - 2008 GMC Envoy | Owner's Manual - Page 435
...7-16 Vehicle Data Recording and Privacy ...7-18 Event Data Recorders ...7-18 OnStar® ...7-19 Navigation System ...7-19 Radio Frequency Identification (RFID) ...7-19 Customer Assistance and Information ...7-2 Customer Satisfaction Procedure ...7-2 Online Owner Center ...7-5 Customer Assistance - 2008 GMC Envoy | Owner's Manual - Page 436
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 - 2008 GMC Envoy | Owner's Manual - Page 437
THREE - U.S. Owners: Both General Motors and your dealer are committed to making sure you are completely satisfied with your new vehicle. However, if for relief available to you. You may contact the BBB Auto Line Program using the toll-free telephone number or write them at the following address: BBB - 2008 GMC Envoy | Owner's Manual - Page 438
Motors of Canada Limited has committed to binding arbitration of owner disputes involving factory-related vehicle service claims. The program provides for the review Motor Vehicle Arbitration Plan (CAMVAP), call toll-free 1-800-207-0685. Alternatively, you can call the General Motors Customer - 2008 GMC Envoy | Owner's Manual - Page 439
Online Owner Center allows you to: My GM Canada (Canada only) My GM Canada is a password-protected section of gmcanada.com where you can save information on GM vehicles, get personalized offers, and use handy tools and forms with greater ease. Here are a few of the valuable tools and services you - 2008 GMC Envoy | Owner's Manual - Page 440
are deaf, hard of hearing, or speech-impaired and who use the Text Telephones (TTYs), GMC has TTY equipment available at its Customer Assistance Center. Any TTY user can communicate with GMC by dialing: 1-800-GMC-8583 (462-8583). (TTY users in Canada can dial 1-800-263-3830.) From Puerto Rico 1-800 - 2008 GMC Envoy | Owner's Manual - Page 441
eligible aftermarket adaptive equipment required for your vehicle, such as hand controls or a wheelchair/scooter lift. The vehicle's eligibility, visit gmmobility.com or call the GM Mobility Assistance Center at 1-800-323-9935. Text telephone (TTY) users, call 1-800-833-9935. General Motors of Canada - 2008 GMC Envoy | Owner's Manual - Page 442
a maximum coverage of $100. • Jump Start: A battery jump start is covered at no charge if the vehicle does not start. • Fuel Delivery: Delivery of enough fuel for the vehicle to get to the nearest service station (approximately $5 in Canada). In Canada, service to provide diesel may be restricted - 2008 GMC Envoy | Owner's Manual - Page 443
, mechanical failures may be covered. However, when other services are utilized, our Roadside Assistance Representatives will explain any payment obligations you might incur. GMC and General Motors of Canada Limited reserve the right to limit services or reimbursement to an owner or driver when, in - 2008 GMC Envoy | Owner's Manual - Page 444
are urged to do so as early in the work day as possible to allow for the same day repair. • Odometer reading, Vehicle Identification Number (VIN), and delivery date of the vehicle • Description of the problem Towing and Road Service Exclusions Specifically excluded from Roadside Assistance coverage - 2008 GMC Envoy | Owner's Manual - Page 445
are proud to offer Courtesy Transportation, a customer support program for vehicles with the Bumper to Bumper (Base Warranty Coverage period in Canada) and extended powertrain warranty in both the U.S. and Canada. Several courtesy transportation options are available to assist in reducing your - 2008 GMC Envoy | Owner's Manual - Page 446
performance, however, the history of these parts is not known. Such parts are not covered by your GM New Vehicle Limited Warranty, and any related failures are not covered by that warranty. Additional Program Information All program options, such as shuttle service, may not be available at every - 2008 GMC Envoy | Owner's Manual - Page 447
may fit poorly, exhibit premature durability/corrosion problems, and may not perform properly in subsequent collisions. Aftermarket parts are not covered by your GM New Vehicle Limited Warranty, and any vehicle failure related to such parts are not covered by that warranty. When purchasing insurance - 2008 GMC Envoy | Owner's Manual - Page 448
vehicle cannot be driven, know where the towing service will be taking it. Get a card from the tow truck operator or write down the driver's name, the service to feel comfortable with their work for a long time. • Remove any valuables from your vehicle before it is towed away. Make sure this - 2008 GMC Envoy | Owner's Manual - Page 449
original GM parts. Remember, recycled parts will not be covered by your GM vehicle warranty. Insurance pays the bill for the repair, but you must live with the repair. Depending on your policy limits, your insurance company may initially value the repair using aftermarket parts. Discuss this - 2008 GMC Envoy | Owner's Manual - Page 450
Canada Limited Customer Communication Centre, CA1-163-005 1908 Colonel Sam Drive Oshawa, Ontario L1H 8P7 Service Publications Ordering Information Service Manuals Service Manuals have the diagnosis and repair information on engines, transmission, axle suspension, brakes, electrical, steering, body - 2008 GMC Envoy | Owner's Manual - Page 451
for delivery. Note to Canadian Customers: All listed prices are quoted in U.S. funds. Canadian residents are to make checks payable in U.S. funds. Current and Past Model Order Forms Technical Service Bulletins and Manuals are available for current and past model GM vehicles. To request an order - 2008 GMC Envoy | Owner's Manual - Page 452
braking to help the driver control the vehicle. These modules may store data to help your dealer/retailer technician service your vehicle. Some modules may also store data about how you operate the vehicle, such as rate of fuel consumption or average speed. These modules may also retain the owner - 2008 GMC Envoy | Owner's Manual - Page 453
owner. Navigation System If your vehicle has a navigation system, use of the system may result in the storage of destinations, addresses, telephone numbers, and other trip information. Refer to the navigation system operating manual for information on stored data and for deletion instructions - 2008 GMC Envoy | Owner's Manual - Page 454
✍ NOTES 7-20 - 2008 GMC Envoy | Owner's Manual - Page 455
System ...1-61 Servicing Your Airbag-Equipped Vehicle ...1-66 What Makes an Airbag Inflate? ...1-59 Antenna, Fixed Mast ...3-103 Antenna, XM™ Satellite Radio Antenna System ...3-103 Antilock Brake System (ABS) ...4-4 Antilock Brake, System Warning Light ...3-39 Appearance Care Aluminum Wheels - 2008 GMC Envoy | Owner's Manual - Page 456
Canadian Owners ...ii Capacities and Specifications ...5-120 Carbon Monoxide ...2-12, 2-37, 4-30, 4-45 Care of Safety Belts ...5-103 Cargo Cover ...2-59 Cargo Tie Downs ...2-60 CD, MP3 ...3-82 Center Console Storage Area ...2-57 Chains, Tire ...5-80 Charging System Light ...3-36 B Battery ...5-41 - 2008 GMC Envoy | Owner's Manual - Page 457
39, 2-41, 2-44 Content Theft-Deterrent ...2-16 Control of a Vehicle ...4-3 Convenience Net ...2-59 Coolant Engine Temperature Gage ...3-40 Heater, Engine ...2-24 Cooling System ...5-30 Cruise Control ...3-11 Cruise Control Light ...3-46 Customer Assistance Information Courtesy Transportation ...7-11 - 2008 GMC Envoy | Owner's Manual - Page 458
82 Doing Your Own Service Work ...5-4 Dome Lamp Override Center (DIC) ...3-49 DIC Operation and Displays ...3-50 DIC Vehicle Customization Vehicle to Get it Out ...4-34 Winter ...4-30 Dual Automatic Climate Control System ...3-23 Dual Climate Control System ...3-21 DVD Rear Seat Entertainment System - 2008 GMC Envoy | Owner's Manual - Page 459
...5-109 Power Windows and Other Power Options ...5-109 Rear Underseat Fuse Block ...5-116 Windshield Wiper Fuses ...5-109 Electronically Controlled Air Suspension System ...4-44 Engine Air Cleaner/Filter ...5-21 Change Engine Oil Light ...3-45 Check and Service Engine Soon Light ...3-41 Coolant - 2008 GMC Envoy | Owner's Manual - Page 460
Changer ...3-8 On Reminder ...3-15 Washer ...3-11 Heated Seats ...1-4 Heater ...3-21 Heater ...3-23 Highbeam On Light ...3-47 High-Speed Operation, Tires to Wear Safety Belts Properly ...1-18 G Gage Check Gages Warning Light ...3-47 Engine Coolant Temperature ...3-40 Fuel ...3-48 Oil Pressure - 2008 GMC Envoy | Owner's Manual - Page 461
Engine Oil ...Charging System ...Check Gages Warning ...Check Gas Cap ...Cruise Control ...Gate Ajar ...Highbeam On ...Low Fuel Warning ...Malfunction Indicator ...Passenger Airbag Status Indicator ...Reduced Engine Power ...Safety Belt Reminders ...Security ...Service Four-Wheel-Drive Warning Light - 2008 GMC Envoy | Owner's Manual - Page 462
Parts ...6-14 Maintenance Requirements ...6-2 Owner Checks and Services ...6-9 Recommended Fluids and Lubricants ...6-12 Scheduled Maintenance ...6-4 Using ...6-3 Your Vehicle and the Environment ...6-2 Malfunction Indicator Light ...3-41 Manual Lumbar Controls ...1-3 Manual Seats ...1-2 Manual - 2008 GMC Envoy | Owner's Manual - Page 463
Light ...3-45 Engine ...5-16 Pressure Gage ...3-44 Oil, Engine Oil Life System ...5-19 Older Children, Restraints ...1-32 Online Owner Center ...7-5 OnStar, Privacy ...7-19 OnStar® System, see OnStar® Manual ...2-48 Operation, Universal Home Remote System ...2-52 P Paint, Damage ...5-106 Park Brake - 2008 GMC Envoy | Owner's Manual - Page 464
Perchlorate Materials Requirements, California ...5-4 Power Door Locks ...2-8 Electrical System ...5-109 Lumbar Controls ...1-4 Reduced Engine Light ...3-46 Retained Accessory (RAP) ...2-22 Seat ...1-3 Steering Fluid ...5-36 Windows ...2-14 Privacy ...7-18 Event Data Recorders ...7-18 Navigation - 2008 GMC Envoy | Owner's Manual - Page 465
Secondary Latch System ...5-92 Securing a Child Restraint Center Rear Seat Position ...1-49 Rear Outside Seat Position ...1-47 Right Front Seat Position ...1-50 Security Light ...3-46 Service ...5-3 Accessories and Modifications ...5-3 Adding Equipment to the Outside of Your Vehicle ...5-5 California - 2008 GMC Envoy | Owner's Manual - Page 466
...3-32 StabiliTrak® System ...4-6 StabiliTrak® Indicator Light ...3-40 StabiliTrak® Service Light ...3-39 Starting the Engine ...2-22 Steering ...4-10 Steering Wheel Controls, Audio ...3-101 Steering Wheel, Tilt Wheel ...3-6 Storage Areas Center Console Storage Area ...2-57 Convenience Net ...2-59 - 2008 GMC Envoy | Owner's Manual - Page 467
Uniform Tire Quality Grading ...5-77 Wheel Alignment and Tire Balance ...5-78 Wheel Replacement ...5-78 When It Is Time for New Tires ...5-73 Towing Recreational Vehicle ...4-40 Towing a Trailer ...4-45 Your Vehicle ...4-40 Traction StabiliTrak® System ...4-6 Transmission Fluid, Automatic ...5-23 - 2008 GMC Envoy | Owner's Manual - Page 468
Loading ...4-34 Symbols ...iv Vehicle Customization, DIC ...3-58 Vehicle Data Recording and Privacy ...7-18 Vehicle Identification Number (VIN) ...5-108 Service Parts Identification Label ...5-108 Ventilation Adjustment ...3-28 Visors ...2-15 Voltmeter Gage ...3-37 Wheels Alignment and Tire Balance