1999 GMC Sonoma Owner's Manual
1999 GMC Sonoma Manual
1999 GMC Sonoma manual content summary:
- 1999 GMC Sonoma | Owner's Manual - Page 1
yellowblue The 1999 GMC Sonoma Owner's Manual 1-1 2-1 3-1 4-1 5-1 6-1 7-1 8-1 Seats and Restraint Systems This section tells you how to use your seats and safety belts properly. It also explains the air bag system. Features and Controls This section explains how to start and operate your vehicle. - 1999 GMC Sonoma | Owner's Manual - Page 2
yellowblue We support voluntary technician certification. GENERAL MOTORS, GM, the GM Emblem, GMC, the GMC Emblem and the name SONOMA 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 - 1999 GMC Sonoma | Owner's Manual - Page 3
help you learn about the features and controls for your vehicle. In this manual, you'll find that pictures and words work together to explain things quickly. for what you need is the Index in back of the manual. It's an alphabetical list of what's in the manual, and the page number where you'll find - 1999 GMC Sonoma | Owner's Manual - Page 4
that can damage your vehicle. Many times, this damage would not be covered by your warranty, and it could be costly. But the notice will tell help avoid the damage. When you read other manuals, you might see CAUTION and NOTICE warnings in different colors or in different words. You'll also see - 1999 GMC Sonoma | Owner's Manual - Page 5
WASHER BATTERY CHARGING SYSTEM FUSE DOOR LOCK UNLOCK TURN SIGNALS LIGHTER PARKING LAMPS FASTEN SEAT BELTS WINDSHIELD DEFROSTER HORN BRAKE HAZARD WARNING FLASHER POWER WINDOW DAYTIME RUNNING LAMPS REAR WINDOW DEFOGGER COOLANT SPEAKER ENGINE OIL PRESSURE VENTILATING FAN FUEL AIR BAG - 1999 GMC Sonoma | Owner's Manual - Page 6
yellowblue Model Reference This manual covers these models: Regular Cab Pickup Extended Cab Pickup vi - 1999 GMC Sonoma | Owner's Manual - Page 7
Right Front Passenger Position Air Bag System Center Passenger Position 1-33 1-34 1-37 1-49 1-52 1-52 1-52 Rear Seat Passengers (Extended Cab Jump Seats) Children Child Restraints Larger Children Safety Belt Extender Checking Your Restraint Systems Replacing Restraint System Parts After a Crash - 1999 GMC Sonoma | Owner's Manual - Page 8
't want to. Adjust the driver's seat only when the vehicle is not moving. Pull up on the lever under the front of the manual seat to unlock it. Slide the seat to where you want it. Then release the lever and try to move the seat with your body to make sure the seat is locked into place. 1-2 - 1999 GMC Sonoma | Owner's Manual - Page 9
yellowblue Manual Lumbar Support (If Equipped) If you have this feature, there will be a knob on the outside of the driver and passenger bucket seats. Reclining Seatbacks (Bucket Seats or 60/40 Bench) To adjust the front seatback, lift the lever on the outer side of the seat. Turn the knob toward - 1999 GMC Sonoma | Owner's Manual - Page 10
like this. The shoulder belt can't do its job because it won't be against your body. Instead, it will be in front of you. In a crash you could go into in motion, have the seatback upright. Then sit well back in the seat and wear your safety belt properly. But don't have a seatback reclined if your - 1999 GMC Sonoma | Owner's Manual - Page 11
-bench seat of your vehicle makes it easy to get in and out of the rear vehicle area. To fold the front seatback forward, turn the handle on the side of the seat rearward and pull the seatback forward. To return the seatback to the upright position, push the seatback all the way back - 1999 GMC Sonoma | Owner's Manual - Page 12
, the person sitting there could be injured. After you've used it, be sure to push rearward on an easy entry seat to be sure it is locked. Your extended cab pickup has a jump seat in the rear area. D Tilt the seatback completely forward again to get out. To fold the jump - 1999 GMC Sonoma | Owner's Manual - Page 13
yellowblue Safety Belts: They're 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. And it explains the air bag system. CAUTION: It is extremely dangerous to ride in a cargo area, inside or outside of - 1999 GMC Sonoma | Owner's Manual - Page 14
! Why Safety Belts Work When you ride in or on anything, you go as fast as it goes. Take the simplest vehicle. Suppose it's just a seat on wheels. 1-8 - 1999 GMC Sonoma | Owner's Manual - Page 15
yellowblue Put someone on it. Get it up to speed. Then stop the vehicle. The rider doesn't stop. 1-9 - 1999 GMC Sonoma | Owner's Manual - Page 16
yellowblue The person keeps going until stopped by something. In a real vehicle, it could be the windshield ... or the instrument panel ... 1-10 - 1999 GMC Sonoma | Owner's Manual - Page 17
out, is much greater if you are belted. If my vehicle has air bags, why should I have to wear safety belts? Air bags are in many vehicles today and will be in most of them in the future. But they are supplemental systems only; so they work with safety belts -- not instead of them. Every - 1999 GMC Sonoma | Owner's Manual - Page 18
start with the driver position. Driver Position This part describes the driver's restraint system. Lap-Shoulder Belt The driver has a lap-shoulder belt. Here's how to wear it properly. 1. Close and lock the door. 2. Adjust the seat (to see how, see "Seats" in the Index) so you can sit up straight - 1999 GMC Sonoma | Owner's Manual - Page 19
lock if you pull the belt across you very quickly. If this happens, let the belt go back slightly to unlock it. Then pull the belt across you more slowly. 5. To make the lap part tight, pull down on the buckle end of the belt as you pull up on the shoulder - 1999 GMC Sonoma | Owner's Manual - Page 20
you'd be less likely to slide under the lap belt. If you slid under it, the belt would apply force at your abdomen. This could cause serious or even fatal injuries. The shoulder belt should go over the shoulder and across the chest. These parts of the body are best able to take - 1999 GMC Sonoma | Owner's Manual - Page 21
your shoulder belt is too loose. In a crash, you would move forward too much, which could increase injury. The shoulder belt should fit against your body. A: The shoulder belt is too loose. It won't give nearly as much protection this way. 1-15 - 1999 GMC Sonoma | Owner's Manual - Page 22
yellowblue Q: What's wrong with this? CAUTION: You can be seriously injured if your belt is buckled in the wrong place like this. In a crash, the belt would go up over your abdomen. The belt forces would be there, not at the pelvic bones. This could cause serious internal injuries. Always buckle - 1999 GMC Sonoma | Owner's Manual - Page 23
yellowblue Q: What's wrong with this? CAUTION: You can be seriously injured if you wear the shoulder belt under your arm. In a crash, your body would move too far forward, which would increase the chance of head and neck injury. Also, the belt would apply too much force to the - 1999 GMC Sonoma | Owner's Manual - Page 24
. If a belt is twisted, make it straight so it can work properly, or ask your dealer to fix it. A: The belt is twisted across the body. 1-18 - 1999 GMC Sonoma | Owner's Manual - Page 25
to be seriously injured if they don't wear safety belts. To unlatch the belt, just push the button on the buckle. The belt should go back out of the way. Before you close the door, be sure the belt is out of the way. If you slam the door on it - 1999 GMC Sonoma | Owner's Manual - Page 26
Air Bag System This part explains the air bag system. Your vehicle has "Next Generation" frontal air bags -- one air bag for the driver and another air bag for the right front passenger. Next Generation frontal air bags . If this happens, just let the belt go back all the way and start again. 1-20 - 1999 GMC Sonoma | Owner's Manual - Page 27
of hitting things inside the vehicle or being ejected from it. Air bags are "supplemental restraints" to the safety belts. All air bags -- even Next Generation air bags -- are designed to work with safety belts, but don't replace them. Air bags are designed to work only in moderate to severe crashes - 1999 GMC Sonoma | Owner's Manual - Page 28
how, see the part of this manual called "Children" and see the caution labels on the sunvisors and the right front passenger's safety belt. The system checks the air bag electrical system for malfunctions. The light tells you if there is an electrical problem. See "Air Bag Readiness Light" in the - 1999 GMC Sonoma | Owner's Manual - Page 29
yellowblue How the Air Bag System Works The right front passenger's air bag is in the instrument panel on the passenger's side. Where are the air bags? The driver's air bag is in the middle of the steering wheel. 1-23 - 1999 GMC Sonoma | Owner's Manual - Page 30
The air bag system is designed to work properly under a wide range of conditions, including air bag covering. When should an air bag inflate? An air bag is designed to inflate in a moderate to severe frontal or near-frontal crash. The air bag will inflate only if the impact speed is above the system - 1999 GMC Sonoma | Owner's Manual - Page 31
need some new parts for your air bag system. If you don't get them, the air bag system won't be there to help protect you in another crash. A new system will include air bag modules and possibly other parts. The service manual for your vehicle covers the need to replace other parts. D Your vehicle - 1999 GMC Sonoma | Owner's Manual - Page 32
technicians work on your air bag system. Improper service can mean that your air bag system won't work properly. See your dealer for service. soaks the carpet, you can avoid needless repair costs by turning off the vehicle immediately and disconnecting the battery cables. Don't let anyone - 1999 GMC Sonoma | Owner's Manual - Page 33
to ride in the front seat so that the driver can constantly monitor the child's condition. D the child has a medical condition which, according Medical Condition. A passenger has a medical condition which, according to his or her physician: D causes the passenger air bag to pose a special risk - 1999 GMC Sonoma | Owner's Manual - Page 34
switch, push in, and move the switch to AIR BAG OFF. The AIR BAG OFF light will come on to let you know that the right front passenger's air bag is off. The right front passenger's air bag will remain off until you turn it back on again, and the AIR BAG OFF light will stay on to remind you that the - 1999 GMC Sonoma | Owner's Manual - Page 35
air bag readiness light ever comes on when you have turned off the air bag, it means that something may be wrong with the air bag system. The right front passenger's air bag vehicle) until you have your vehicle serviced. To turn the right front passenger's air bag on again, insert your ignition key - 1999 GMC Sonoma | Owner's Manual - Page 36
is turned off and the battery is disconnected, an air bag can still inflate during improper service. You can be injured if you are close to an air bag when it inflates. Avoid wires wrapped with yellow tape or yellow connectors. They are probably part of the air bag system. Be sure to follow proper - 1999 GMC Sonoma | Owner's Manual - Page 37
yellowblue Center Passenger Position Lap Belt If your vehicle has a bench seat, someone can sit in the center position. When you sit in a center seating position, you have a lap safety belt, which has no retractor. To make the belt longer, tilt the latch plate and pull it along the belt. 1-31 - 1999 GMC Sonoma | Owner's Manual - Page 38
the belt shorter, pull its free end as shown until the belt is snug. Buckle, position and release it the same way as the lap part of a lap-shoulder belt. If the belt isn't long enough, see "Safety Belt Extender" at the end of this section. Make sure the release button - 1999 GMC Sonoma | Owner's Manual - Page 39
belted can be thrown out of the vehicle in a crash. And they can strike others in the vehicle who are wearing safety belts. Each jump seat has a lap belt with no retractor. To make the belt longer, tilt the latch plate and pull it along the belt. 1-33 - 1999 GMC Sonoma | Owner's Manual - Page 40
nor its air bag system is designed for them. Young children and infants need the protection that a child restraint system can provide. Always secure children properly in your vehicle. To make it shorter, pull the belt as shown until it is snug. Buckle and position it the same way as the lap part of - 1999 GMC Sonoma | Owner's Manual - Page 41
support, including support for the head and neck. This is necessary because an infant's neck is weak and its head weighs so much compared with the rest of its body the crash forces can be distributed across the strongest part of the infant's body, the back and shoulders. A baby should be secured in - 1999 GMC Sonoma | Owner's Manual - Page 42
your arms. The baby would be almost impossible to hold. Secure the baby in an infant restraint, but be sure to turn off the passenger's air bag. See "Securing a Child Restraint in the Right Front Seat Position" in the Index for more on this, including important safety information. 1-36 - 1999 GMC Sonoma | Owner's Manual - Page 43
yellowblue Child Restraints Every time infants and young children ride in vehicles, they should have protection provided by appropriate restraints. Q: A: What are the different types of add-on child restraints? Add-on child restraints are available in four basic types. When selecting a child - 1999 GMC Sonoma | Owner's Manual - Page 44
to about 20 lbs. (9 kg) and about one year of age. This type of restraint faces the rear so that the infant's head, neck and body can have the support they need in a frontal crash. Some infant seats come in two parts -- the base stays secured in the vehicle and the seat part is removable. 1-38 - 1999 GMC Sonoma | Owner's Manual - Page 45
yellowblue 1-39 - 1999 GMC Sonoma | Owner's Manual - Page 46
. (9 to 18 kg) and about 26 to 40 inches (66 to 102 cm) in height, or up to around four years of age. One type, a convertible restraint, is designed to be used either as a rear-facing infant seat or a forward-facing child - 1999 GMC Sonoma | Owner's Manual - Page 47
is not available, obtain a replacement copy from the manufacturer. The child restraint must be secured properly in the right front passenger seat. If you want to secure a rear-facing child restraint in the right front passenger's seat, turn off the passenger's air bag. See "AIR BAG OFF Switch" and - 1999 GMC Sonoma | Owner's Manual - Page 48
your vehicle has Next Generation frontal air bags. This is because the back of the rear-facing child restraint would be very close to the inflating air bag. Be sure to turn off the air bag before using a rear-facing child restraint in the right front seat position. Keep in mind that an unsecured - 1999 GMC Sonoma | Owner's Manual - Page 49
be done for you free of charge. Or, you may install the anchor yourself using the instructions provided in the kit. Jump Seats (Extended Cab) Securing a Child Restraint in the Center Front Seat Position Don't use child restraints in these positions. The restraints won't work properly. Don't use - 1999 GMC Sonoma | Owner's Manual - Page 50
yellowblue Securing a Child Restraint in the Right Front Seat Position Your vehicle has a right front passenger air bag. There's a switch on the instrument panel that you can use to turn off the right front passenger's air bag when you want to secure a rear-facing child restraint at the right - 1999 GMC Sonoma | Owner's Manual - Page 51
your child, always move the passenger seat as far back as it will go. CAUTION: If the air bag readiness light ever comes on when you have turned off the air bag, it means that something may be wrong with the air bag system. The right front passenger's air bag could inflate even though the switch - 1999 GMC Sonoma | Owner's Manual - Page 52
as the instructions say. 1. Your vehicle has a right front passenger's air bag. If you are using a rear-facing child restraint in this seat, make sure the air bag is turned off. (See "AIR BAG OFF Switch" in the Index.) If your child restraint is forward-facing, always move the seat as far back as it - 1999 GMC Sonoma | Owner's Manual - Page 53
the rest of the shoulder belt all the way out of the retractor to set the lock. 6. To tighten the belt, feed the shoulder belt back into the retractor while you push down on the child restraint. If you're using a forward-facing child restraint, you may find it helpful to - 1999 GMC Sonoma | Owner's Manual - Page 54
's safety belt and let it go back all the way. The safety belt will move freely again and be ready to work for an adult or larger child passenger. If you were using a rear-facing child restraint, turn on the right front passenger's air bag when you remove the rear-facing child restraint from - 1999 GMC Sonoma | Owner's Manual - Page 55
yellowblue Larger Children Children who have outgrown child restraints should wear the vehicle's safety belts. D Children who aren't buckled up can be thrown out in a crash. D Children who aren't buckled up can strike other people who are. 1-49 - 1999 GMC Sonoma | Owner's Manual - Page 56
very close to the child's face or neck? Move the child toward the center of the vehicle, but be sure that the shoulder belt still is on the child's shoulder, so that in a crash the child's upper body would have the restraint that belts provide. If the child is so small that - 1999 GMC Sonoma | Owner's Manual - Page 57
yellowblue 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. If the child wears the belt in this way, in a crash the child might slide under the belt. The belt's force would then be applied right on the child's abdomen - 1999 GMC Sonoma | Owner's Manual - Page 58
any opened or broken air bag covers, and have them repaired or replaced. (The air bag system does not need regular maintenance.) If belts are cut or damaged, replace them. Collision damage also may mean you will need to have safety belt or seat parts repaired or replaced. New parts and repairs may - 1999 GMC Sonoma | Owner's Manual - Page 59
Your Engine While You're Parked (Automatic Transmission) Locking Rear Axle Windows Tilt Wheel (If Equipped) Turn Signal/Multifunction Lever Exterior Lamps Interior Lamps Mirrors Storage Compartments Accessory Power Outlets (If Equipped) Instrument Panel Instrument Panel Cluster Warning Lights, Gages - 1999 GMC Sonoma | Owner's Manual - Page 60
in a vehicle with the ignition key is dangerous for many reasons. A child or others could be badly injured or even killed. They could operate power windows or other controls or even make the vehicle move. Don't leave the keys in a vehicle with children. 2-2 - 1999 GMC Sonoma | Owner's Manual - Page 61
that can help prevent theft. But you can have a lot of trouble getting into your vehicle if you ever lock your keys inside. You dealer provides the owner with a pair of identical keys and a key code number. The key code number tells your dealer or a qualified locksmith how to make extra keys - 1999 GMC Sonoma | Owner's Manual - Page 62
be far better off whenever you drive your vehicle. There are several ways to lock and unlock your vehicle. You can use the keyless entry system, if you have this feature. You can use your key to unlock your door from the outside. To lock your door from the inside - 1999 GMC Sonoma | Owner's Manual - Page 63
the door. Keyless Entry System (If Equipped) If your vehicle has power door locks, the switch is located on the armrest. Remove the ignition key and press with your vehicle. Your keyless entry system operates on a radio frequency subject to Federal Communications Commission (FCC) Rules and - 1999 GMC Sonoma | Owner's Manual - Page 64
. qualified technician for service. D Check the location. Other vehicles or objects may be D If you're still having trouble, see your dealer or a Operation UNLOCK: When you press UNLOCK, the driver's door will unlock automatically, the parking lamps will flash and the interior lights will go on - 1999 GMC Sonoma | Owner's Manual - Page 65
. Once your dealer has coded the new transmitter, the lost transmitter will not unlock your vehicle. Each vehicle can have only four transmitters matched to it. NOTICE: When replacing the battery, use care not to touch any of the circuitry. Static from your body transferred to these surfaces may - 1999 GMC Sonoma | Owner's Manual - Page 66
near the key ring hole. Remove the bottom by twisting the dime. 2. Remove and replace the battery with a three volt CR2032 or equivalent battery, positive (+) side up. 3. Align the covers and snap them together. 4. Resynchronize the transmitter. 5. Check the operation of the transmitter. Side - 1999 GMC Sonoma | Owner's Manual - Page 67
on the handle while pulling the tailgate down. When you put the tailgate back up, be sure it latches securely. Follow these steps if you want to remove the tailgate: 1. Raise the tailgate slightly. 2. Remove both retaining cables. To remove each cable, turn it so the end faces the front. Then, push - 1999 GMC Sonoma | Owner's Manual - Page 68
wheel will be locked, and so will your ignition. If you have an automatic transmission, taking your key out also locks your transmission. Also remember to lock the doors. D If your vehicle has a remote keyless entry system, take the transmitter with you. D Lock all the doors except the driver - 1999 GMC Sonoma | Owner's Manual - Page 69
in through the window, unlock the door with the manual door lock and open the door. This should set off the alarm. If the alarm does not sound when it should but the vehicle's headlamps flash, check to see if the horn works. The horn fuse may be blown. To replace the fuse, see - 1999 GMC Sonoma | Owner's Manual - Page 70
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 serviced by your dealer. Your vehicle is not protected by Passlock at this time. You may also want to check the - 1999 GMC Sonoma | Owner's Manual - Page 71
power windows or other controls or even make the vehicle move. Don't leave the keys in the vehicle with children. Use the key to turn the ignition switch to five different positions. ACCESSORY (A): This position lets you use things like the radio and the windshield wipers when the engine is - 1999 GMC Sonoma | Owner's Manual - Page 72
accessories in the ACCESSORY position could drain your battery and prevent you from starting your vehicle. LOCK (B): This position locks your ignition, steering wheel and transmission. It's a theft-deterrent feature. You will only be able to remove your engine. CAUTION: On manual transmission - 1999 GMC Sonoma | Owner's Manual - Page 73
and power windows will work when the ignition key is in RUN or ACCESSORY. Once the key is turned from RUN to OFF, these features will continue to work for up to 20 minutes or until a door is opened. Starting Your Engine Automatic Transmission To remove the key on manual transmission vehicles, turn - 1999 GMC Sonoma | Owner's Manual - Page 74
. If you add electrical parts or accessories, you could change the way the engine operates. Before adding electrical equipment, check with your dealer. If you don't, your engine might not perform properly. If you ever have to have your vehicle towed, see the part of this manual that tells how to do - 1999 GMC Sonoma | Owner's Manual - Page 75
parts or accessories, you could change the way the engine operates. Before adding electrical equipment, check with your dealer. If you don't, your engine might not perform properly. If you ever have to have your vehicle towed, see the part of this manual avoid draining your battery or damaging your - 1999 GMC Sonoma | Owner's Manual - Page 76
before to keep it away from moving engine parts. If you don't, it could be damaged. Your automatic transmission has a shift lever on the steering but not locked, there will be a small current drain on your battery which could discharge your battery over a period of time. If you need to leave your - 1999 GMC Sonoma | Owner's Manual - Page 77
the engine. Your vehicle has a Brake-Transmission Shift Interlock (BTSI). You have to fully apply your regular brakes before transmission. Shift to REVERSE (R) only after your vehicle is stopped. To rock your vehicle back and forth to get out of snow, ice or sand without damaging your transmission - 1999 GMC Sonoma | Owner's Manual - Page 78
but then you would also want to use your brakes off and on. You can also use SECOND (2) for starting your vehicle from a stop on slippery road surfaces. NOTICE: Damage to your transmission caused by shifting out of PARK (P) or NEUTRAL (N) with the engine racing isn't covered by your warranty. 2-20 - 1999 GMC Sonoma | Owner's Manual - Page 79
forward, the transmission won't shift into FIRST (1) until the vehicle is going slowly enough. Manual Transmission Operation 5-Speed transmission. Use your brakes or shift into PARK (P) to hold your vehicle in position on a hill. Here's how to operate your transmission: FIRST (1): Press the clutch - 1999 GMC Sonoma | Owner's Manual - Page 80
up on the accelerator pedal and press the brake pedal. Just before the vehicle stops, press the clutch pedal and the brake pedal, and shift to NEUTRAL. NEUTRAL: Use this position when you start or idle your engine. REVERSE (R): To back up, press the clutch pedal. After the vehicle stops, shift into - 1999 GMC Sonoma | Owner's Manual - Page 81
equipped with a manual transmission, disregard the SHIFT light when the transfer case is in 4LO. This light will show you when to shift to the next higher gear for best fuel economy. When this light comes on, you can shift to the next higher gear if weather, road and traffic conditions let you. For - 1999 GMC Sonoma | Owner's Manual - Page 82
come on briefly when you turn on the ignition and one will stay on. If the lights do not come on, you should take your vehicle in for service. An indicator light will flash while shifting. It will remain illuminated when the shift is completed. NOTICE: Driving in the 4HI or 4LO positions - 1999 GMC Sonoma | Owner's Manual - Page 83
with an automatic transmission or the clutch pedal engaged in vehicles equipped with a manual transmission. The preferred method for shifting into 4LO is to have your vehicle moving 1 to 2 mph (1.6 to 3.2 km/h). Press and release the 4LO switch. You must wait for the 4LO indicator light to stop - 1999 GMC Sonoma | Owner's Manual - Page 84
(P). Wait until the 4HI indicator light remains illuminated before shifting your transmission into gear. This will get you into 4HI, but you should take your vehicle in for service to restore normal operation. Parking Brake To set the parking brake, hold the regular brake pedal down with your right - 1999 GMC Sonoma | Owner's Manual - Page 85
yellowblue Shifting Into PARK (P) (Automatic Transmission Only) CAUTION: It can be dangerous to get out of your vehicle if the shift lever is not fully in PARK (P) with the parking brake firmly set. Your vehicle can roll. If you have left the engine running, the vehicle can move suddenly. You or - 1999 GMC Sonoma | Owner's Manual - Page 86
yellowblue Leaving Your Vehicle With the Engine Running (Automatic Transmission Only) CAUTION: It can be dangerous to leave your 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. And, if you leave the - 1999 GMC Sonoma | Owner's Manual - Page 87
shift lever wasn't fully locked into PARK (P). Shifting Out of PARK (P) (Automatic Transmission Only) CAUTION: Before shifting out of PARK (P) you must fully apply your regular brakes. Your vehicle can roll. If you have left the engine running, the vehicle can move suddenly. You or others could be - 1999 GMC Sonoma | Owner's Manual - Page 88
, turn off your engine, put your manual transmission in REVERSE (R) and firmly apply the parking brake. If you are parking on a hill, or if your vehicle is pulling a trailer, see "Towing a Trailer" in the Index. CAUTION: Things that can burn could touch hot exhaust parts under your vehicle and - 1999 GMC Sonoma | Owner's Manual - Page 89
vehicle or exhaust system had been modified improperly. If you ever suspect exhaust is coming into your vehicle: D Drive it only with all the windows down to blow out any CO; and D Have your vehicle fixed immediately. Running Your Engine While You're Parked (Automatic Transmission) It's better not - 1999 GMC Sonoma | Owner's Manual - Page 90
Manual Windows Turn the hand crank on each door to raise or lower your manual side door windows. Power Windows (If Equipped) If you have the optional power windows, the controls are on each of the side doors. With power windows, the switches control the windows when the ignition is on, in ACCESSORY - 1999 GMC Sonoma | Owner's Manual - Page 91
express-down feature that allows you to lower it without holding the window switch. Hold the driver's window switch down for more than a half a second to activate the express-down feature. Lightly tap the switch to open the window slightly. The express-down feature can be interrupted at any time by - 1999 GMC Sonoma | Owner's Manual - Page 92
have the tilt steering wheel, you should adjust the steering wheel before you drive. Squeeze the latch in the center of the window and slide the glass to open it. When you close the window, be sure the latch catches. You can raise it to the highest level to give your legs more room - 1999 GMC Sonoma | Owner's Manual - Page 93
the way up or down. When the turn is finished, the lever will return automatically. An arrow on the instrument panel will flash in the direction of the turn a bulb is burned out, replace it to help avoid an accident. If the arrows don't go on at all when you signal a turn, check the fuse (see "Fuses - 1999 GMC Sonoma | Owner's Manual - Page 94
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, but not so far that you hear it. When the high-beam headlamps are on, this indicator light on the instrument panel will also be on. 2-36 - 1999 GMC Sonoma | Owner's Manual - Page 95
washer fluid on the windshield, push the paddle. The wipers will clear the window and then either stop or return to your preset speed. You control the speed for a long or short delay between wipes. This can be very useful in light rain or snow. Turn the band to choose the delay time. The closer to LO - 1999 GMC Sonoma | Owner's Manual - Page 96
and you could lose control. Don't use cruise control on slippery roads. D If you have an automatic transmission and you apply your brakes, the cruise control will shut off. If you have a manual transmission and you apply your brakes or push the clutch pedal, the cruise control will shut off. 2-38 - 1999 GMC Sonoma | Owner's Manual - Page 97
SET button at the end of the lever and release it. You'll go right back up to your chosen speed and stay there. If you hold the switch at second, the vehicle will keep going faster until you release the switch or apply the brake. You could be startled and even lose control. So unless you want to go - 1999 GMC Sonoma | Owner's Manual - Page 98
brake or shift to a lower gear to keep your speed down. Of course, applying the brake takes you out of cruise control. Many drivers find this to be too much trouble Using Cruise Control D Step lightly on the brake pedal or push the clutch pedal, if you have a manual transmission. D Press in the - 1999 GMC Sonoma | Owner's Manual - Page 99
taillamps, sidemarker, parking lamps and the instrument panel lights. The radio lights will also dim. Your vehicle is equipped with a light sensor on the top of the instrument panel under the radio speaker grill. Be sure it is not covered or the system will be on whenever the ignition is on. Your - 1999 GMC Sonoma | Owner's Manual - Page 100
your headlamps or parking lamps are manually turned on and your ignition is in OFF, LOCK or ACCESSORY. To turn the chime off, headlamp switch is in automatic headlamp mode, the light sensor detects daytime light, an automatic transmission is not in PARK (P), and the parking brake is released. When - 1999 GMC Sonoma | Owner's Manual - Page 101
will turn off automatically. If you use your keyless entry transmitter to unlock the vehicle, the interior lights will come on for a short time whether or not the DOME OVERRIDE button is in the "out" position. Use your fog lamps for better vision in foggy or misty conditions - 1999 GMC Sonoma | Owner's Manual - Page 102
remove the key from the ignition to help you see while exiting the vehicle. These lights automatically come on for approximately 40 seconds when the doors are unlocked with the keyless entry transmitter (if equipped) or until the ignition key is turned to RUN or ACCESSORY vehicle. Battery Run-Down - 1999 GMC Sonoma | Owner's Manual - Page 103
Remote Control Mirror The control is located on the driver's door armrest. Pull the tab under the mirror toward you to reduce glare mirror, then press the arrows on the control pad to adjust the mirror. Outside Manual Adjust Mirror Adjust your outside mirrors so you can just see the side of your - 1999 GMC Sonoma | Owner's Manual - Page 104
is curved so you can see more from the driver's seat. Heated Outside Rearview Mirrors (If Equipped) Your vehicle may be equipped with heated outside rearview mirrors. When you operate the heated mirror button on your climate control system, the defogger will warm the mirrors to help clear them - 1999 GMC Sonoma | Owner's Manual - Page 105
a lift-out storage tray in the console. If your vehicle has the center armrest compartment, lift the cover to expose the storage area which includes slots for cassettes or compact discs and a coinholder. Some vehicles may have a storage pocket on the back of the bucket or 60/40 bench seats. 2-47 - 1999 GMC Sonoma | Owner's Manual - Page 106
while it is heating. If you do, it won't be able to back away from the heating element when it's ready. That can make it or other smoking materials could set them on fire, causing damage. To remove the front ashtray, pull the bin upward. To use the lighter, cover to expose the vanity mirror. 2-48 - 1999 GMC Sonoma | Owner's Manual - Page 107
, you can plug in auxiliary electrical equipment. The accessory power outlets are located near the center of the vehicle on the lower part of the instrument panel. Just remove the plug from the outlet and follow the proper installation instructions that are included with any electrical equipment you - 1999 GMC Sonoma | Owner's Manual - Page 108
yellowblue Instrument Panel 2-50 - 1999 GMC Sonoma | Owner's Manual - Page 109
Cluster C. Transfer Case (If Equipped) D. Glove Box E. Audio System F. Heated Outside Rearview Mirror Switch (If Equipped) G. Auxiliary Power Outlets (If Equipped) H. Comfort Controls I. Ashtray J. Passenger Air Bag Off Switch K. Brake Release L. Fog Lamps (If Equipped) M. Lamp Controls 2-51 - 1999 GMC Sonoma | Owner's Manual - Page 110
yellowblue Instrument Panel Cluster Your instrument cluster is designed to let you know at a glance how your vehicle is running. You'll know how fast you're going, about how much fuel you've used, and many other things you'll need to know to drive safely and economically. Standard Cluster, Canada - 1999 GMC Sonoma | Owner's Manual - Page 111
yellowblue Optional Cluster, Canada Similar 2-53 - 1999 GMC Sonoma | Owner's Manual - Page 112
in Canada). The odometer mileage can be checked without the vehicle running. Simply press the trip manual transmission, shift to a higher gear as soon as possible. If you have an automatic transmission, lift your foot off the accelerator pedal. The solid red danger range tells you that your engine - 1999 GMC Sonoma | Owner's Manual - Page 113
there may be a 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. NOTICE: Do not operate the engine with the tachometer - 1999 GMC Sonoma | Owner's Manual - Page 114
problem. The system check includes the air bag sensors, the air bag modules, the wiring, the passenger air bag suppression circuit and the crash sensing and diagnostic module. For more information on the air bag system, see "Air Bag" in the Index. This light will come on when you start your engine - 1999 GMC Sonoma | Owner's Manual - Page 115
person sitting there. Your vehicle has an energy-absorbing safety belt for the right front passenger. This belt is designed to work with the air bag to provide restraint in some collisions by partially "giving" or yielding after first restraining the occupant's motion. In a crash, if the right front - 1999 GMC Sonoma | Owner's Manual - Page 116
air bag risk group sit in the right front passenger's position (for example, don't secure a rear-facing child restraint in your vehicle) until you have your vehicle serviced. The charging system light will come on briefly when you turn on the ignition, but the engine is not running, as a check - 1999 GMC Sonoma | Owner's Manual - Page 117
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. Shift Light You have the shift light if you have a manual transmission. When the engine is running, the gage shows - 1999 GMC Sonoma | Owner's Manual - Page 118
off the road and stopped carefully, have the vehicle towed for service. Anti-Lock Brake System Warning Light With the anti-lock brake system, this light will come on when you start your engine and may stay on for several seconds. That's normal. If the light stays on, or comes on when you're driving - 1999 GMC Sonoma | Owner's Manual - Page 119
The anti-lock brake system warning light should come on briefly when you turn the ignition key to RUN. If the light doesn't come on then, have it fixed so it will be ready to warn you if there is a problem. Malfunction Indicator Lamp (Service Engine Soon Light) Engine Coolant Temperature Gage - 1999 GMC Sonoma | Owner's Manual - Page 120
on your vehicle. Dealer or qualified service center diagnosis and service may be required. D Light On Steady -- An emission control system NOTICE: Modifications made to the engine, transmission, exhaust or fuel system of your vehicle or the replacement of the original tires with other than - 1999 GMC Sonoma | Owner's Manual - Page 121
experience one or more of these conditions, change the fuel brand you use. It will require at least one full tank of the proper fuel to turn the light off. If none of the above steps have made the light turn off, have your dealer or qualified service center check the vehicle. Your dealer has the - 1999 GMC Sonoma | Owner's Manual - Page 122
other problems causing low oil pressure. CAUTION: Don't keep driving if the oil pressure is low. If you do, your engine can become so hot that it catches fire. You or others could be burned. Check your oil as soon as possible and have your vehicle serviced. Security Warning Light This light will - 1999 GMC Sonoma | Owner's Manual - Page 123
any problem is apparent, which may prevent serious damage to the vehicle. This system is also designed to assist your service technician in correctly diagnosing a malfunction. Check Gages Light If this light comes on and stays on while you are driving, check your coolant temperature and engine oil - 1999 GMC Sonoma | Owner's Manual - Page 124
on briefly when you start your engine. This light comes on when the fuel tank is low on fuel. Here are four things that some owners ask about. None of these show a problem with your fuel gage: To when you turn a corner or D The gage doesn't go back to E (Empty) when you turn off the ignition. 2-66 - 1999 GMC Sonoma | Owner's Manual - Page 125
Control (If Equipped) AM-FM Stereo with Compact Disc Player and Automatic Tone Control (If Equipped) Remote Cassette Tape Player (If Equipped) Theft-Deterrent Feature (If Equipped) Understanding Radio Reception Tips About Your Audio System Care of Your Cassette Tape Player Care of Your Compact Discs - 1999 GMC Sonoma | Owner's Manual - Page 126
yellowblue Comfort Controls With these systems, you can control the heating, cooling and ventilation in your vehicle. Mode Knob The right knob on the control panel allows you to choose the direction of air delivery. OFF: This setting turns the system off. Some outside air will still enter the - 1999 GMC Sonoma | Owner's Manual - Page 127
This setting cools the air entering your vehicle and directs it through the heater floor outlets as well as the instrument panel outlets. VENT: This setting directs most of the air through the instrument panel outlets and a small amount through the floor outlets. The air conditioning compressor is - 1999 GMC Sonoma | Owner's Manual - Page 128
compartment in cold weather. See "Engine Coolant Heater" in the Index. Air Conditioning (If Equipped) On hot days, open the windows long enough to let hot inside air escape. This reduces the time it takes for your vehicle to cool down. Then keep your windows closed for the air conditioner to work - 1999 GMC Sonoma | Owner's Manual - Page 129
yellowblue Defogging and Defrosting On cool, humid days, use BLEND to keep the windshield and side windows clear. Use DEFROST to remove fog or ice from the windshield quickly in extreme humid or cold conditions. Turn the temperature knob clockwise and turn the fan control toward high. If you have - 1999 GMC Sonoma | Owner's Manual - Page 130
advanced engineering that went into it. D When you enter a vehicle in cold weather, turn the fan control to high for a few moments before driving off. This helps clear the intake ducts of snow and moisture, and reduces the chance of fogging the inside of your windows. objects. This helps air to - 1999 GMC Sonoma | Owner's Manual - Page 131
Radio VOLUME: This knob turns the system on and off and controls the volume. To increase volume and turn the radio on, turn the knob clockwise. Turn it counterclockwise to decrease volume and turn the radio listen to a few seconds of each radio station. SCAN will light up on the display. Press the - 1999 GMC Sonoma | Owner's Manual - Page 132
each pair of pushbuttons. Setting the Tone BASS: Slide this lever up or down to increase or decrease bass. TREB: Slide this lever up or down to increase or decrease Playing the Radio VOLUME: This knob turns the system on and off and controls the volume. To increase volume and turn the radio on, turn - 1999 GMC Sonoma | Owner's Manual - Page 133
AM, seven FM1 and seven FM2). Just: 1. Turn the radio on. 2. Press AM-FM to select the band. 3. Tune the Tone BASS: Slide this lever up or down to increase or decrease bass. TREB: Slide this lever up scan through each of your preset stations. The system will scan through and play each preset station - 1999 GMC Sonoma | Owner's Manual - Page 134
knobs for VOLUME, BAL, FADE, BASS and TREB just as you do for the radio. REV: Press the SEEK left arrow to reverse the cassette tape. Press the SEEK to switch tape sides. EJECT: Press this button to remove the tape or stop the tape and play the radio. CLN: If this message appears on the display, the - 1999 GMC Sonoma | Owner's Manual - Page 135
Automatic Tone Control (If Equipped) SCV: Your system has a feature called Speed-Compensated Volume (SCV). With SCV, your audio system adjusts automatically selection. TUNE: Press this knob lightly so it extends. Turn it to choose radio stations. Push the knob back into its stored position when you - 1999 GMC Sonoma | Owner's Manual - Page 136
the tone you selected will be automatically selected for that button. 6. Repeat radio display will show the channel number (P1-P6) for several seconds before advancing to the next preset station. Setting the Tone BASS: Press lightly back into their stored positions when you're not using them. 3-12 - 1999 GMC Sonoma | Owner's Manual - Page 137
or JAZZ. To return to the manual mode, press and release this the Speakers BAL: Press lightly on this knob to Push these knobs back into their stored controls just as you do for the radio. The tape symbol and a direction for play first. The player automatically senses if the cassette tape is - 1999 GMC Sonoma | Owner's Manual - Page 138
AUX: Press this button to return to the tape player when playing the radio. The lighted arrow will appear and show the direction of play when a tape is in the active mode. EJECT: Press this button to remove the tape. The radio will now play. EJECT can be used with either the ignition or - 1999 GMC Sonoma | Owner's Manual - Page 139
, indicating the feature is active. 4. Insert the adapter. It will power up the radio and begin playing. This override routine will remain active until EJECT is pressed. Playing the Radio PWR-VOL: Press this knob to turn the system on and off. To increase volume, turn this knob clockwise. Turn it - 1999 GMC Sonoma | Owner's Manual - Page 140
this button to switch between AM, FM1 and FM2. The display will show your selection. TUNE: Press this knob lightly so it extends. Turn it to choose radio stations. Push the knob back into its stored position when you're not using it. SEEK: Press the right arrow to tune to the next - 1999 GMC Sonoma | Owner's Manual - Page 141
radio display will show the channel number (P1-P6) for several seconds before advancing to the next preset station. Setting the Tone BASS: Press lightly the treble. Push these knobs back into their stored positions when you or JAZZ. To return to the manual mode, press and release this button until - 1999 GMC Sonoma | Owner's Manual - Page 142
player will pull it in. Wait a few seconds and the disc should play. CD and a CD symbol will also appear on the display. Anytime you are playing a CD, the letters CD will be next to the CD symbol. If the disc comes back out and ERR appears on the display, it could be that: RDM (2): Press - 1999 GMC Sonoma | Owner's Manual - Page 143
The radio will continue playing. When the ignition is off, press this button to load a CD. Remote Cassette Tape Player (If Equipped) If you have an AM-FM Stereo Audio Compact Disc Automatic Tone Control System that includes a remote cassette player, the cassette player is located in the center of - 1999 GMC Sonoma | Owner's Manual - Page 144
yellowblue The player automatically senses if the cassette tape is metal CD AUX. The lighted arrow will appear next to the symbol and show the direction of play when a tape is active. EJECT: Press this button on the remote player to remove the tape. EJECT can be used with either the ignition or radio - 1999 GMC Sonoma | Owner's Manual - Page 145
is designed to discourage theft of your radio. It works by using a secret code to disable all radio functions whenever battery power is removed. The THEFTLOCK feature for the radio may be used or ignored. If ignored, the system plays normally and the radio is not protected by the feature. If - 1999 GMC Sonoma | Owner's Manual - Page 146
will show ---, indicating that the radio is no longer secured. If the code entered is incorrect, SEC will appear on the display. The radio will remain secured until the correct code is entered. When battery power is removed and later applied to a secured radio, the radio won't turn on and LOC will - 1999 GMC Sonoma | Owner's Manual - Page 147
of sound equipment that has been added improperly. So, before adding sound equipment, check with your dealer and be sure to check Federal rules covering mobile radio and telephone units. Tips About Your Audio System Hearing damage from loud noise is almost undetectable until it is too late. Your - 1999 GMC Sonoma | Owner's Manual - Page 148
cassette turn. The recommended cleaning cassette is available through your dealership (GM Part No. 12344789). When using a scrubbing action, non-abrasive cleaning cassette, it Cassette Tape Player and Automatic Tone Control: 1. Turn the ignition to RUN or ACCESSORY. 2. Turn the radio off. 3-24 - 1999 GMC Sonoma | Owner's Manual - Page 149
to reset the CLN indicator. The radio will display --- to show the indicator was reset. Cassettes are subject to wear and the sound quality may degrade over time. Always make sure the cassette tape is in good condition before you have your tape player serviced. Care of Your Compact Discs Handle - 1999 GMC Sonoma | Owner's Manual - Page 150
yellowblue NOTES 3-26 - 1999 GMC Sonoma | Owner's Manual - Page 151
information about driving on different kinds of roads and in varying weather conditions. We've also included many other useful tips on driving. 4-2 4-13 4-14 4-26 Defensive Driving Drunken Driving Control of a Vehicle Braking Steering Off-Road Recovery Passing Loss of Control Off-Road Driving with - 1999 GMC Sonoma | Owner's Manual - Page 152
the best defensive driving maneuver, in both city and rural driving. You never know when the vehicle in front of you is going to brake or turn suddenly. Defensive driving requires that a driver concentrate on the driving task. Anything that distracts from the driving task -- such as concentrating on - 1999 GMC Sonoma | Owner's Manual - Page 153
, here is some general information on the problem. The Blood Alcohol Concentration (BAC) of someone who is drinking depends upon four things: D D D D Judgment Muscular Coordination Vision Attentiveness. D The amount of alcohol consumed D The drinker's body weight D The amount of food that is - 1999 GMC Sonoma | Owner's Manual - Page 154
generally will reach a higher BAC level than a man of her same body weight when each has the same number of drinks. The law in many an hour, the person's BAC would be close to 0.12 percent. A person who consumes food just before or during drinking will have a somewhat lower BAC level. There is a - 1999 GMC Sonoma | Owner's Manual - Page 155
yellowblue The body takes about an hour to rid itself of the alcohol in one drink. No amount of coffee or number of cold showers will speed that up. people don't know. Medical research shows that alcohol in a person's system can make crash injuries worse, especially injuries to the brain, spinal cord - 1999 GMC Sonoma | Owner's Manual - Page 156
another. Age, physical condition, alertness, coordination and eyesight all play a part. So do alcohol, drugs condition of your brakes; the weight of the vehicle and the amount of brake force applied. Sometimes, as when you're driving on snow or ice, it's easy to ask more of those control systems - 1999 GMC Sonoma | Owner's Manual - Page 157
skid. When you start your engine and begin to drive away, your anti-lock brake system will check itself. You may hear a momentary motor or clicking noise while this test is going on. This is normal. If there's a problem with the anti-lock brake system, this warning light will stay on. See "Anti - 1999 GMC Sonoma | Owner's Manual - Page 158
to make the most of available tire and road conditions. Here's how anti-lock works. Let's say the road is wet. You're driving safely. Suddenly an animal jumps out in front of you. You slam on the brakes. Here's what happens with ABS. A computer senses that wheels are slowing down. If one of - 1999 GMC Sonoma | Owner's Manual - Page 159
in Emergencies With anti-lock, you can steer and brake at the same time. In many emergencies, steering can help you more than even the very best braking. Steering Power Steering If you lose power steering assist because the engine stops or the system is not functioning, you can steer but it will - 1999 GMC Sonoma | Owner's Manual - Page 160
posted speeds are based on good weather and road conditions. Under less favorable conditions you'll want to go slower. If you need brakes. (See "Braking in Emergencies" earlier in this section.) It is better to remove as much speed as you can from a possible collision. Then steer around the problem - 1999 GMC Sonoma | Owner's Manual - Page 161
right moment, accelerates, moves around the vehicle ahead, then goes back into the right lane again. A simple maneuver? Not necessarily! Passing that might indicate a turn or an intersection, delay your pass. A broken center line usually indicates it's all right to pass (providing the road ahead is - 1999 GMC Sonoma | Owner's Manual - Page 162
back again and wait for another opportunity. your turn. But take care that someone isn't trying to pass you as you pull out to pass the slow vehicle. Remember to glance over your shoulder and check the blind spot. D Check make it easy for the Even though the brake lamps are not flashing, it may be - 1999 GMC Sonoma | Owner's Manual - Page 163
If your vehicle starts to slide, ease your foot off the system (ABS) helps avoid only the braking skid. Skidding In a skid, a driver can lose control of the vehicle. Defensive drivers avoid most skids by taking reasonable care suited to existing conditions, and by not "overdriving" those conditions - 1999 GMC Sonoma | Owner's Manual - Page 164
example, be sure to have all necessary maintenance and service work done. Check to make sure all underbody shields (if so equipped) are properly attached. Be sure you read all the information about your four-wheel-drive vehicle in this manual. Is there enough fuel? Is the spare tire fully inflated - 1999 GMC Sonoma | Owner's Manual - Page 165
Heavy loads on the roof raise the vehicle's center of gravity, making it more likely to roll over Always carry a litter bag ...make sure all refuse is removed from any campsite before the vehicle's exhaust system. You'll find other important information in this manual. See "Vehicle Loading," - 1999 GMC Sonoma | Owner's Manual - Page 166
vehicle bounce when you drive over obstacles. D you'll need more distance for braking, especially since you're on an unpaved surface. Getting Familiar with Off-Road ears need to listen for unusual tire or engine sounds. With your arms, hands, feet and body, you'll need to respond to vibrations and - 1999 GMC Sonoma | Owner's Manual - Page 167
features. Here are some things to consider. Surface Conditions. Off-roading can take you over hard-packed slipping, sliding, wheel spinning, delayed acceleration, poor traction and longer braking distances. road signs, posted speed limits or signal lights. You have to use your own good judgment - 1999 GMC Sonoma | Owner's Manual - Page 168
, the incline may get steeper as you near the top, but you may not see this because the crest of the hill is hidden by bushes, grass or shrubs. Here are some other things to consider as you approach a hill. CAUTION: Many hills are simply too steep for any vehicle. If - 1999 GMC Sonoma | Owner's Manual - Page 169
than you need, because you don't want your wheels to start spinning or sliding. the path twists and turns, you might want to find another route. driving across steep hills can be dangerous. You could lose traction, slide sideways, and possibly roll over. You could be seriously injured or killed. When - 1999 GMC Sonoma | Owner's Manual - Page 170
REVERSE (R), release the parking brake, and slowly back straight down. restart it. With the brake pedal pressed and the parking brake still applied, shift the transmission to PARK (P) (or, shift to NEUTRAL (N) if your vehicle has a manual transmission) and restart the engine. Then, shift to REVERSE - 1999 GMC Sonoma | Owner's Manual - Page 171
yellowblue Q: A: Suppose, after stalling, I try to back down the hill and decide I just can't do it. What should I do? Set the parking brake, put your transmission in PARK (P) (or the manual transmission in FIRST (1)) and turn off the engine. Leave the vehicle and go get some help. Exit on the - 1999 GMC Sonoma | Owner's Manual - Page 172
lose control and have a serious accident. D Shift to PARK (P) (or to NEUTRAL (N) with the manual transmission) and, while still braking, restart the engine. and drive straight down. D Shift back to a low gear, release the parking brake, D If the engine won't start, get out and get help. 4-22 - 1999 GMC Sonoma | Owner's Manual - Page 173
incline puts more weight on the downhill wheels. This could cause a downhill slide or a rollover. across a hill. Loose gravel, muddy spots, or drive across it. Find another route instead. Q: A: D Surface conditions can be a problem when you drive What if I'm driving across an incline that's not - 1999 GMC Sonoma | Owner's Manual - Page 174
You can't accelerate as quickly, turning is more difficult, and you'll need longer braking distances. It's best to use a low gear when you're in mud -- the effect on steering, accelerating and braking. You may want to reduce the air pressure in your tires slightly when driving on sand. This - 1999 GMC Sonoma | Owner's Manual - Page 175
steering and difficult braking can cause you to slide out of control. through. Also, water that deep can damage your axle and other vehicle parts. If the water on driving through water. Driving in Water Light rain causes no special off-road driving problems. But heavy rain can mean flash flooding, - 1999 GMC Sonoma | Owner's Manual - Page 176
. These substances 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 - 1999 GMC Sonoma | Owner's Manual - Page 177
; that way, it's easier to pick out dimly lighted objects. Just as your headlamps should be checked regularly for proper aim, so should your eyes be bright sunshine you are wise to wear sunglasses. Your eyes will have less trouble adjusting to night. But if you're driving, don't wear sunglasses - 1999 GMC Sonoma | Owner's Manual - Page 178
and on Wet Roads Rain and wet roads can mean driving trouble. On a wet road, you can't stop, accelerate or turn equipment in good shape and keep your windshield washer tank filled with washer fluid. Replace your windshield wiper inserts when they show signs of streaking or missing areas on the - 1999 GMC Sonoma | Owner's Manual - Page 179
through a large puddle of water or a car wash, apply your brake pedal lightly until your brakes work normally. Driving too fast through large water puddles or even going through some car washes can cause problems, too. The water may affect your brakes. Try to avoid puddles. But if you can't, try to - 1999 GMC Sonoma | Owner's Manual - Page 180
Deep Standing Water NOTICE: If you drive too quickly through deep puddles or standing water, water can come in through your engine's air intake and badly damage your engine. Never drive through water that is slightly lower than the underbody of your vehicle. If you can't avoid deep puddles or - 1999 GMC Sonoma | Owner's Manual - Page 181
going. Get a city map and plan your trip into an unknown part of the city just as you would for a cross-country trip. light turns green, and just before you start to move, check both ways for vehicles that have not cleared the intersection or may be running the red light. One of the biggest problems - 1999 GMC Sonoma | Owner's Manual - Page 182
's slower. Stay in the right lane unless you want to pass. Before changing lanes, check your mirrors. Then use your turn signal. Just before you leave the lane, glance quickly do not, under any circumstances, stop and back up. Drive on to the next exit. The exit ramp can be curved, sometimes quite - 1999 GMC Sonoma | Owner's Manual - Page 183
if you need it. D Wiper Blades: Are they in good shape? D Fuel, Engine Oil, Other Fluids: Have you checked all levels? D Lamps: Are they all working? Are the lenses clean? D Tires: They are vitally important to a safe, trouble-free trip. Is the tread good enough for long-distance driving? Are the - 1999 GMC Sonoma | Owner's Manual - Page 184
the hum of the tires on the road, the drone of the engine, and the rush of the wind against the vehicle that can make well ventilated, with a comfortably cool interior. D Keep your eyes moving. Scan the road ahead and to the sides. Check your mirrors and your instruments frequently , service 4-34 - 1999 GMC Sonoma | Owner's Manual - Page 185
in gear when you go downhill. D Keep your vehicle in good shape. Check all fluid levels and also the brakes, tires, cooling system and transmission. These parts can work hard on mountain roads. thing to know is this: let your engine do some of the slowing down. Shift to a lower gear when you go - 1999 GMC Sonoma | Owner's Manual - Page 186
shovel, a flashlight, a red cloth and reflective warning triangles. And, if you will be driving under severe conditions, include a small bag of sand, a piece of old carpet or a couple of burlap bags to help provide traction. Be sure you properly secure these items in your vehicle. Driving on Snow - 1999 GMC Sonoma | Owner's Manual - Page 187
a hard stop on a slippery road. Even though you have an anti-lock braking system, you'll want to begin stopping sooner than you would on dry pavement. for this? "Wet ice." Very cold snow or ice can be slick and hard to drive on. But wet ice can be even more trouble because it may offer the least - 1999 GMC Sonoma | Owner's Manual - Page 188
stopped by the snow. D Put on extra clothing or wrap a blanket around you. If you have no blankets or extra clothing, make body insulators from newspapers, burlap bags, rags, floor mats -- anything you can wrap around yourself or tuck under your clothing to keep warm. If you are stopped by heavy - 1999 GMC Sonoma | Owner's Manual - Page 189
engine off and close the window almost all the way to preserve the heat. Start the engine again and repeat this only when you feel really uncomfortable from the cold. the propeller shaft removed following the applicable service manual removal/installation procedure. See "Service and Owner Publications" in - 1999 GMC Sonoma | Owner's Manual - Page 190
is not provided. Also, check the transmission fluid level before driving the vehicle. When towing your vehicle, turn the ignition to OFF. To prevent your battery from draining while towing, remove the RDO BATT fuse from the instrument panel fuse block. Be sure to replace the fuse when you reach - 1999 GMC Sonoma | Owner's Manual - Page 191
and come into the passenger area, injuring you and others. If you put things in the bed of your truck, you should make sure they are properly secured. NOTICE: Your warranty does not cover parts or components that fail because of overloading. If you put things inside your vehicle -- like suitcases - 1999 GMC Sonoma | Owner's Manual - Page 192
them are above the tops of the seats. D Don't leave an unsecured child restraint for off-road driving in this manual. See "Loading Your Vehicle for the occupants as part of your load. If you added any accessories or equipment prevent it from shifting. The load's center of gravity should be positioned in - 1999 GMC Sonoma | Owner's Manual - Page 193
CWR. Add-On Equipment When you carry removable items, you may need to put a limit on how many people you carry inside your vehicle. Be sure to weigh your vehicle before you buy and install the new equipment. NOTICE: Your warranty doesn't cover parts or components that fail because of overloading - 1999 GMC Sonoma | Owner's Manual - Page 194
body is concentrated and, if suspended at that point, would balance the front and rear. B. Recommended Center of Gravity Location Zone The camper's center of gravity should fall within the center of gravity zone for your vehicle's cargo load. Campers can only be installed in a long box pickup. Check - 1999 GMC Sonoma | Owner's Manual - Page 195
yellowblue You must weigh any accessories, trailer hitches or other equipment you add to your vehicle. Then, subtract this extra weight from the CWR. This extra weight may shorten the center of gravity zone for your vehicle. Your dealer can help you with this. If your slide-in camper and its load - 1999 GMC Sonoma | Owner's Manual - Page 196
when you pull a trailer. For example, if the trailer is too heavy, the brakes may not work well -- or even at all. You and your passengers could be and result in costly repairs not covered by your warranty. To pull a trailer correctly, follow the advice in this part, and see your dealer for important - 1999 GMC Sonoma | Owner's Manual - Page 197
and other parts of your vehicle wear in at the heavier loads. use THIRD (3) (or, as you need to, a lower gear) when towing a trailer. Operating your vehicle in THIRD (3) when towing a trailer will minimize heat buildup and extend the life of your transmission. If you have a manual transmission and - 1999 GMC Sonoma | Owner's Manual - Page 198
can weigh, based upon your vehicle model and options. Vehicle 2WD 2.2L L4 Engine* 2WD "VORTEC" 4300 V6 Auto. Trans.* 2WD "VORTEC" 4300 V6 Man nor intended to tow a trailer. For more information on RPO codes, see "Service Parts Identification Label" in the Index. [Maximum trailer weight reduced by - 1999 GMC Sonoma | Owner's Manual - Page 199
moving some items around in the trailer. Total Weight on Your Vehicle's Tires Be sure your vehicle's tires are inflated to the upper limit for cold tires. You'll find these numbers on the Certification/Tire label on the driver's door edge, above the door latch, or see "Tire Loading" in - 1999 GMC Sonoma | Owner's Manual - Page 200
adequate. Be sure to read and follow the instructions for the trailer brakes so you'll be able to install, adjust and maintain them properly. D If your vehicle has the bumper delete option, do not bolt any type of hitch to the close-out panel. The close-out panel will not support a hitch. 4-50 - 1999 GMC Sonoma | Owner's Manual - Page 201
at the same time. During your trip, check occasionally to be sure that the load is secure, and that the lamps and any trailer brakes are still working. D The trailer parts can withstand 3,000 psi (20 650 kPa) of pressure. D The trailer's brake system will use less than 0.02 cubic inch (0.3 cc - 1999 GMC Sonoma | Owner's Manual - Page 202
back up slowly and, if possible, have someone guide to check automatic transmission, you should use THIRD (3) when towing a trailer. Operating your vehicle in THIRD (3) when towing a trailer will minimize heat buildup and extend the life of your transmission. Or, if you have a manual transmission - 1999 GMC Sonoma | Owner's Manual - Page 203
run while parked (preferably on level ground) with the automatic transmission in PARK (P) (or the manual transmission out of gear and the parking brake applied) for a few minutes before turning the engine off. If you do get the overheat warning, see "Engine Overheating" in the Index. But if you ever - 1999 GMC Sonoma | Owner's Manual - Page 204
automatic transmission fluid (don't overfill), engine oil, axle lubricant, belt, 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 - 1999 GMC Sonoma | Owner's Manual - Page 205
Here you'll find what to do about some problems that can occur on the road. 5-2 5-2 5-3 5-7 5-9 5-11 Hazard Warning Flashers Other Warning Devices Jump Starting Towing Your Vehicle Engine Overheating Cooling System 5-19 5-19 5-19 5-31 5-32 Engine Fan Noise If a Tire Goes Flat Changing a Flat Tire - 1999 GMC Sonoma | Owner's Manual - Page 206
warning flashers let you warn others. They also let police know you have a problem. Your front and rear turn signal lamps will flash on and off. When turn signals won't work. The flashers will stop if you step on the brake. Other Warning Devices If you carry reflective triangles, you can set one up - 1999 GMC Sonoma | Owner's Manual - Page 207
or light yellow. Replace the battery when there is a clear or light yellow hydrometer and a cranking complaint. Trying to start your vehicle by pushing or pulling it won't work, and it could damage your vehicle. 1. Check the other vehicle. It must have a 12-volt battery with a negative ground system - 1999 GMC Sonoma | Owner's Manual - Page 208
vehicles rolling, set the parking brake firmly on both vehicles involved in the procedure. Put an automatic transmission vehicle in PARK (P) and a manual transmission vehicle in NEUTRAL (N). 3. Turn off the ignition on both vehicles. Unplug unnecessary accessories plugged into the cigarette lighter - 1999 GMC Sonoma | Owner's Manual - Page 209
yellowblue 5. Check that the jumper cables don't have loose or missing insulation. If negative (-) will go to an unpainted metal engine part. Don't connect positive (+) to negative (-) or you'll get a short that would damage the battery and maybe other parts too. 6. Connect the red positive (+) - 1999 GMC Sonoma | Owner's Manual - Page 210
the dead battery. If it won't start after a few tries, make sure all connections are good. If it still won't start, it probably needs service. CAUTION: Fans or other moving engine parts can injure you badly. Keep your hands away from moving parts once the engine is running. 12. Remove the cables - 1999 GMC Sonoma | Owner's Manual - Page 211
tow with damaged parts not fully secured. D Never get under your vehicle after it has been lifted by the tow truck. D Always secure the vehicle on each side with separate safety chains when towing it. D Use only the correct hooks. A. Heavy Metal Engine Part B. Good Battery C. Dead Battery 5-7 - 1999 GMC Sonoma | Owner's Manual - Page 212
proper towing equipment to avoid damage to the bumper, fascia or fog lamp areas of the vehicle with wheel lift or car carrier equipment. Vehicles equipped with a manual transmission must be placed on a towing dolly D Towing from the service if you need to have your vehicle towed. See " - 1999 GMC Sonoma | Owner's Manual - Page 213
it. Just turn it off and get everyone away from the vehicle until it cools down. Wait until there is no sign of steam or coolant before you open the hood. If you keep driving when your engine is overheated, the liquids in it can catch fire. You or others could be - 1999 GMC Sonoma | Owner's Manual - Page 214
would not be covered by your warranty. 2. Turn on your heater to full hot at the highest fan speed and open the window as necessary. 3. If you're in a traffic jam, shift to NEUTRAL (N); otherwise, shift to the highest gear while driving -- DRIVE (D) or THIRD (3) for automatic transmissions. If you - 1999 GMC Sonoma | Owner's Manual - Page 215
do anything else until it cools down. A. Coolant Recovery Tank B. Radiator Pressure Cap C. Engine Fan The coolant level should be at least up to the ADD mark. If it isn't, you may have a leak in the radiator hoses, heater hoses, radiator, water pump or somewhere else in the cooling system. 5-11 - 1999 GMC Sonoma | Owner's Manual - Page 216
leak, start the engine again. See if the engine cooling fan speed increases when idle speed is doubled by pushing the accelerator pedal down. If it doesn't, your vehicle needs service. Turn off the engine. NOTICE: Engine damage from running your engine without coolant isn't covered by your warranty - 1999 GMC Sonoma | Owner's Manual - Page 217
the Index for more information.) NOTICE: In cold weather, water can freeze and crack the engine, radiator, heater core and other parts. Use the recommended coolant and the proper coolant mixture. CAUTION: Adding only plain water to your cooling system can be dangerous. Plain water, or some other - 1999 GMC Sonoma | Owner's Manual - Page 218
coolant on a hot engine. When the coolant in the coolant recovery tank is at the ADD mark, start your vehicle. If the overheat warning continues, there's one more thing you can try. You can add the proper coolant mixture directly to the radiator, but be sure the cooling system is cool before you do - 1999 GMC Sonoma | Owner's Manual - Page 219
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 - 1999 GMC Sonoma | Owner's Manual - Page 220
How to Add Coolant to the Radiator 2. Then keep turning the pressure cap, but now push down as you turn it. Remove the pressure cap. 1. You can remove the radiator pressure cap when the cooling system, including the radiator pressure cap and upper radiator hose, is no longer hot. Turn the pressure - 1999 GMC Sonoma | Owner's Manual - Page 221
proper DEX-COOLR coolant mixture, up to the base of the filler neck. (See "Engine Coolant" in the Index for more information about the proper coolant mixture.) 4. Then fill the coolant recovery tank to the ADD mark. 5. Put the cap back on the coolant recovery tank, but leave the radiator pressure - 1999 GMC Sonoma | Owner's Manual - Page 222
the engine cooling fan. 7. By this time, the coolant level inside the radiator filler neck may be lower. If the level is lower, add more of the proper DEX-COOLR coolant mixture through the filler neck until the level reaches the base of the filler neck. 8. Then replace the pressure cap - 1999 GMC Sonoma | Owner's Manual - Page 223
should not be mistaken as the transmission slipping or making extra shifts. It is merely the cooling system functioning properly. The fan will slow down when additional cooling is not required and the clutch disengages. You may also hear this fan noise when you start the engine. It will go away as - 1999 GMC Sonoma | Owner's Manual - Page 224
change your tire. To help prevent the vehicle from moving: 1. Set the parking brake firmly. 2. Put an automatic transmission shift lever in PARK (P) or shift a manual transmission to FIRST (1) or REVERSE (R). 3. Turn off the engine. 4. Put the wheel blocks at the front and rear of the tire farthest - 1999 GMC Sonoma | Owner's Manual - Page 225
is supported by a jack. Always tighten the tire fully against the underside of the vehicle when storing it. Insert the chisel end of the wheel wrench, on an angle, into the hole in the rear bumper. This is the jack cover for the extended cab. The cover for the regular cab is similar. To remove - 1999 GMC Sonoma | Owner's Manual - Page 226
tire near the flat tire. The tools you'll be using include the jack (A) and wheel wrench (B). Your vehicle may also have an optional hub cap removal tool. 5-22 - 1999 GMC Sonoma | Owner's Manual - Page 227
you have individual wheel nut caps that cover each nut, they must be removed in order to get to the wheel nuts. Use the socket end of the wheel wrench to remove the wheel nut caps. Your wheel nut caps may attach your hub cap to the wheel. Remove these wheel nut caps before you take off the hub - 1999 GMC Sonoma | Owner's Manual - Page 228
Flat Tire and Installing the Spare Tire A. Front Frame Hole B. Rear Frame Hole (ZR2) 1. Using the wheel wrench, loosen all the wheel nuts. Don't remove them yet. 2. Turn the jack handle clockwise slightly to raise the jack lift head. 3. Fit the jack into the appropriate hole nearest the flat tire - 1999 GMC Sonoma | Owner's Manual - Page 229
off the jack, you could be badly injured 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 room for the spare tire to fit. 5. Remove all the wheel nuts and take off the flat tire. 5-25 - 1999 GMC Sonoma | Owner's Manual - Page 230
toward the wheel. CAUTION: Rust or dirt on the wheel, or on the parts to which it is fastened, can make the wheel nuts become loose after a . The wheel could come off and cause an accident. When you change a wheel, remove any rust or dirt from the places where the wheel attaches to the vehicle. In - 1999 GMC Sonoma | Owner's Manual - Page 231
yellowblue 10. Use the wrench to tighten the wheel nuts firmly in a crisscross sequence as shown. 9. Lower the vehicle by turning the jack handle counterclockwise. Lower the jack completely. 5-27 - 1999 GMC Sonoma | Owner's Manual - Page 232
accident. Be sure to use the correct wheel nuts. If you have to replace them, be sure to get new GM original equipment wheel nuts. Stop somewhere : Improperly tightened wheel nuts can lead to brake pulsation and rotor damage. To avoid expensive brake repairs, evenly tighten the wheel nuts in the - 1999 GMC Sonoma | Owner's Manual - Page 233
be separated to insert through the wheel opening. 3. Put the chisel end of the wheel wrench on an angle, through the hole in the rear bumper and into the hoist shaft. Turn the wheel wrench clockwise until the tire is raised against the underside of the vehicle. You will hear two - 1999 GMC Sonoma | Owner's Manual - Page 234
Instructions (Roll and place tag behind the bracket after the tools are installed.) D. Bolt Location (Standard) E. Bolt Location (ZR2) F. Wheel Blocks G. Nut H. Rubber Band I. Jack Position (ZR2) J. Jack Position (Standard) A. Hub Cap Removal Tool (Some Models) B. Cover (Extended Cab) C. Cover - 1999 GMC Sonoma | Owner's Manual - Page 235
vehicle was new, it can lose air after a time. Check the inflation pressure regularly. It should -size tire repaired or replaced where you want. Of course, it's best to replace your spare with a full take your vehicle through an automatic car wash with guide rails. The compact spare can get caught - 1999 GMC Sonoma | Owner's Manual - Page 236
parts of your vehicle as well as the tires. If you spin the wheels too fast while shifting your transmission back and forth, you can destroy your transmission be injured. And, the transmission or other parts of the vehicle can overheat. That could cause an engine compartment fire or other damage. - 1999 GMC Sonoma | Owner's Manual - Page 237
area around your front wheels. If you have a four-wheel drive vehicle, shift into 4HI. Then shift back and forth between REVERSE (R) and a forward gear (or with a manual transmission, between FIRST (1) or SECOND (2) and REVERSE (R)), spinning the wheels as little as possible. Release the accelerator - 1999 GMC Sonoma | Owner's Manual - Page 238
yellowblue NOTICE: Never use the recovery hooks to tow the vehicle. Your vehicle could be damaged and it would not be covered by warranty. CAUTION: The recovery hooks, when used, are under a lot of force. Always pull the vehicle straight out. Never pull on the hooks at a - 1999 GMC Sonoma | Owner's Manual - Page 239
Service Fuel Fuels in Foreign Countries Filling Your Tank Filling a Portable Fuel Container Checking Things Under the Hood Engine Oil Engine Air Cleaner/Filter Automatic Transmission Fluid Manual Transmission Fluid Hydraulic Clutch Rear Axle Four-Wheel Drive Radiator Pressure Cap Thermostat Engine - 1999 GMC Sonoma | Owner's Manual - Page 240
To order the proper service manual, see "Service and Owner Publications" in the Index. Your vehicle has an air bag system. Before attempting to do your own service work, see "Servicing Your Air Bag-Equipped Vehicle" in the Index. You should keep a record with all parts receipts and list the mileage - 1999 GMC Sonoma | Owner's Manual - Page 241
knocking, your engine needs service. But don't worry if you hear a little pinging noise when you're accelerating or driving up a hill. That's normal, and you don't have to buy a higher octane fuel to get rid of pinging. It's the heavy, constant knock that means you have a problem. Adding Equipment - 1999 GMC Sonoma | Owner's Manual - Page 242
to your authorized GM dealer for service. To provide cleaner air, all gasolines in the United States are now required to contain additives that will help prevent deposits from forming in your engine and fuel system, allowing your emission control system to function properly. Therefore, you should - 1999 GMC Sonoma | Owner's Manual - Page 243
previous text on fuel. Costly repairs caused by use of improper fuel wouldn't be covered by your warranty. To check on fuel availability, ask an auto club, or contact a major oil company that L1H 8P7 Filling Your Tank The fuel cap is behind a hinged door on the driver's side of your vehicle. 6-5 - 1999 GMC Sonoma | Owner's Manual - Page 244
yellowblue To remove the cap, turn it slowly to the left (counterclockwise). The cap has a spring in it; if you let go of the cap too soon, it will spring back to the right. CAUTION: Gasoline vapor is highly flammable. It burns violently, and that can cause very bad injuries. Don't smoke if you're - 1999 GMC Sonoma | Owner's Manual - Page 245
cap back on, turn it to the right (clockwise) until you hear a clicking sound. Make sure you fully install the cap. The diagnostic system can determine if the fuel cap vehicle, in a vehicle's trunk, pickup bed or on any surface other than the NOTICE: If you need a new cap, be sure to get the right - 1999 GMC Sonoma | Owner's Manual - Page 246
yellowblue Checking Things Under the Hood CAUTION: Things that burn can get on hot engine parts and start a fire. These include liquids like gasoline, oil, coolant, brake fluid, windshield washer and other fluids, and plastic or rubber. You or others could be burned. Be careful not to drop or spill - 1999 GMC Sonoma | Owner's Manual - Page 247
see these items on the 2.2L L4 engine: A. Battery D. Engine Oil Fill Cap and Dipstick G. Engine Air Cleaner/Filter B. Coolant Recovery Tank E. Power Steering Reservoir H. Engine Compartment Fuse Block C. Automatic Transmission Dipstick F. Brake Master Cylinder I. Windshield Washer Fluid Reservoir - 1999 GMC Sonoma | Owner's Manual - Page 248
items on the "VORTEC" 4300 V6 engine: A. Battery B. Coolant Recovery Tank C. Engine Oil Dipstick D. Engine Oil Fill E. Automatic Transmission Dipstick F. Power Steering Reservoir G. H. I. J. Brake Master Cylinder Engine Air Cleaner/Filter Engine Compartment Fuse Block Windshield Washer Fluid - 1999 GMC Sonoma | Owner's Manual - Page 249
, be sure all the filler caps are on properly. Then lift the hood to relieve pressure on the hood prop. Remove the hood prop from the slot hood. The oil dipstick on the 2.2L L4 engine is under the fill cap. Engine Oil It's a good idea to check your engine oil every time you get fuel. In order to - 1999 GMC Sonoma | Owner's Manual - Page 250
push it back in all the way. Remove it again, keeping the tip down, and check the level. When to Add Engine Oil If the oil is at or below the ADD line, then you'll need to add at least one quart of oil. But you must use the right kind. This part explains - 1999 GMC Sonoma | Owner's Manual - Page 251
the Starburst symbol on the front of the oil container. If you have your oil changed for you, be sure the oil put into your engine is American Petroleum Institute certified for gasoline engines. You should also use the proper viscosity oil for your vehicle, as shown in the following chart: 6-13 - 1999 GMC Sonoma | Owner's Manual - Page 252
service, police, taxi or other commercial application. Driving under these conditions causes engine oil to break down sooner. If any one of these is true for your vehicle, then you need to change your oil and filter every 3,000 miles (5 000 km) or 3 months -- whichever occurs first. easier cold - 1999 GMC Sonoma | Owner's Manual - Page 253
it in the trash, pouring it on the ground, into sewers, or 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 your used oil, ask your dealer, a service station or a local recycling center for help. 6-15 - 1999 GMC Sonoma | Owner's Manual - Page 254
Engine Air Cleaner/Filter 2.2L L4 Engine "VORTEC" 4300 V6 Engine 1. To remove either air cleaner, remove the wing nuts that hold the cover on. 2. Remove the cover and lift out the air filter. 3. Insert a new air filter, then replace the air cleaner cover. 4. Tighten the wing nuts to hold the cover - 1999 GMC Sonoma | Owner's Manual - Page 255
to the Maintenance Schedule to determine when to replace the air filter. See "Scheduled Maintenance Services" in the Index. Automatic Transmission Fluid When to Check and Change A good time to check your automatic transmission fluid level is when the engine oil is changed. Change both the fluid and - 1999 GMC Sonoma | Owner's Manual - Page 256
engine parts or exhaust system parts, starting a fire. Be sure to get an accurate reading if you check your transmission fluid. Wait at least 30 minutes before checking the transmission on a level place. Keep the engine running. in PARK (P). D With the parking brake applied, place the shift lever - 1999 GMC Sonoma | Owner's Manual - Page 257
or more. Then, without shutting off the engine, follow these steps: 1. The transmission dipstick is located near the center of the engine compartment. Flip the handle up and then pull out the dipstick and wipe it with a clean rag or paper towel. 3. Check both sides of the dipstick, and read the - 1999 GMC Sonoma | Owner's Manual - Page 258
for your automatic transmission. Damage caused by fluid other than DEXRONR-III is not covered by your new vehicle warranty. NOTICE: Too much or too little fluid can damage your transmission. Too much can mean that some of the fluid could come out and fall on hot engine parts or exhaust system parts - 1999 GMC Sonoma | Owner's Manual - Page 259
in the pedal is normal. It isn't a good idea to "top off" your clutch fluid. Adding fluid won't correct a leak. A fluid loss in this system could indicate a problem. Have the system inspected and repaired. 1. Remove the filler plug. 2. Check that the lubricant level is up to the bottom of the filler - 1999 GMC Sonoma | Owner's Manual - Page 260
it's in place in the reservoir. See the instructions on the reservoir cap. Rear Axle When to Check and Change Lubricant Refer to the Maintenance Schedule to determine how often to check the lubricant and when to change it. See "Scheduled Maintenance Services" in the Index. Refer to the Maintenance - 1999 GMC Sonoma | Owner's Manual - Page 261
section also apply to four-wheel-drive vehicles. However, they have two additional systems that need lubrication. Transfer Case When to Check Lubricant Refer to the Maintenance Schedule to determine how often to check the lubricant. See "Periodic Maintenance Inspections" in the Index. If the level - 1999 GMC Sonoma | Owner's Manual - Page 262
and Change Lubricant Refer to the Maintenance Schedule to determine how often to check the lubricant and when to change it. See "Scheduled Maintenance Services" in the Index. How to Check Lubricant If the level is below the bottom of the filler plug hole, you'll need to add some lubricant. Add - 1999 GMC Sonoma | Owner's Manual - Page 263
yellowblue When the differential is cold, add enough lubricant to raise the level to 1/2 inch (12 Cap NOTICE: Your radiator cap is a 15 psi (105 kPa) pressure-type cap and must be tightly installed to prevent coolant loss and possible engine damage from overheating. Be sure the arrows on the cap - 1999 GMC Sonoma | Owner's Manual - Page 264
COOLR is not covered by your new vehicle warranty. Engine Coolant The cooling system in your vehicle is filled with DEX-COOLR engine coolant. This coolant explains your cooling system and how to add coolant when it is low. If you have a problem with engine overheating, see "Engine Overheating" in - 1999 GMC Sonoma | Owner's Manual - Page 265
damaged. The repair cost wouldn't be covered by your warranty. Too much water in the mixture can freeze and crack the engine, radiator, heater core and other parts. If you have to add coolant more than four times a year, have your dealer check your cooling system. CAUTION: Adding only plain water - 1999 GMC Sonoma | Owner's Manual - Page 266
coolant at the radiator. Never turn the radiator pressure cap -- even a little -- when the engine and radiator are hot. Add coolant mixture at the recovery tank, but be careful not to spill it. The vehicle must be on a level surface. When your engine is cold, the coolant level should be at ADD, or - 1999 GMC Sonoma | Owner's Manual - Page 267
yellowblue Power Steering Fluid How to Check Power Steering Fluid When the engine compartment is cool, wipe the cap and the top of the reservoir clean, then unscrew the cap and wipe the dipstick with a clean rag. Replace the cap and completely tighten it. Then remove the cap again and look at the - 1999 GMC Sonoma | Owner's Manual - Page 268
cap 's instructions for parts of the washer system. Also, water doesn't clean as well as washer fluid. Fill your washer fluid tank only three-quarters full when it's very cold. This allows for expansion if freezing occurs, which could damage the tank if it is completely full. Don't use engine - 1999 GMC Sonoma | Owner's Manual - Page 269
have too much fluid when you get new brake linings. You should add (or remove) brake fluid, as necessary, only when work is done on the brake hydraulic system. CAUTION: If you have too much brake fluid, it can spill on the engine. The fluid will burn if the engine is hot enough. You or others could - 1999 GMC Sonoma | Owner's Manual - Page 270
only. Always clean the brake fluid reservoir cap and the area around the cap before removing it. This will help keep dirt from entering the reservoir. CAUTION: Just look at the brake fluid reservoir. The fluid level should be above MIN. If it isn't, have your brake system checked to see if there - 1999 GMC Sonoma | Owner's Manual - Page 271
yellowblue NOTICE: D Using the wrong fluid can badly damage brake system parts. For example, just a few drops of mineral-based oil, such as engine oil, in your brake system can damage brake system parts so badly that they'll have to be replaced. Don't let someone put in the wrong kind of fluid. If - 1999 GMC Sonoma | Owner's Manual - Page 272
goes down farther than normal, your rear drum brakes may need adjustment. Adjust them by backing up and firmly applying the brakes a few times. 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 - 1999 GMC Sonoma | Owner's Manual - Page 273
engine isn't running. See "Replacement Bulbs" in the Index. For any bulb changing procedure not listed in this section, contact your GM dealer's service department. Vehicle Storage If you're not going to drive your vehicle for 25 days or more, remove the black, negative (-) cable from the battery - 1999 GMC Sonoma | Owner's Manual - Page 274
yellowblue Headlamps One-Piece Composite Headlamp System 1. Open the hood. 5. Turn the bulb assembly counterclockwise to remove it. 6. Put the new bulb assembly into the headlamp assembly and turn it clockwise until it is tight. 2. Remove the black retainer clips by lifting up. 3. Pull the - 1999 GMC Sonoma | Owner's Manual - Page 275
yellowblue Two-Piece Composite Headlamp System 1. Open the hood. 5. Turn the bulb assembly counterclockwise to remove it. 2. Remove the black retainer clips by lifting up. 3. Pull the headlamp lens assembly out. 4. Unplug the electrical connector. 6. Put the new bulb assembly into the headlamp - 1999 GMC Sonoma | Owner's Manual - Page 276
" earlier in this section. 2. Twist the bulb socket counterclockwise to remove it from the headlamp assembly. Two-Piece Front Turn Signal Lamp Assembly 1. Remove the headlamp assembly as shown under "Two-Piece Composite Headlamp System" earlier in this section. 2. Locate the locking tabs on the - 1999 GMC Sonoma | Owner's Manual - Page 277
yellowblue 8. Replace the headlamp assembly. Install the two retaining clips. Center High-Mounted Stoplamp 4. Turn the harness bulb socket counterclockwise to remove it. Pull the bulb straight out to remove it from the socket. 5. Push the new bulb into the socket until it snaps into place. 6. Put - 1999 GMC Sonoma | Owner's Manual - Page 278
the bulb. Taillamps 1. Open the tailgate. 2. Remove the screws from the lamp assembly near the tailgate latch. 4. Install a new bulb. 5. Replace the lens. Install and tighten the screws. If equipment such as a cap or camper is installed on your vehicle, a center high-mounted stoplamp feed wire is - 1999 GMC Sonoma | Owner's Manual - Page 279
cracking. See "Wiper Blade Check" in Section 7 in this manual under Part B "Owner Checks and Services" for more information. NOTICE: Use care when removing or installing a blade assembly. Accidental bumping can cause the arm to fall back and strike the windshield. 1. To remove the old wiper blades - 1999 GMC Sonoma | Owner's Manual - Page 280
blade assembly to release it from the wiper arm hook. 3. Remove the insert from the blade assembly. The insert has two notches slide the insert (D), notched 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 - 1999 GMC Sonoma | Owner's Manual - Page 281
overheating as a result of too much friction. You could have an air-out and a serious accident. See "Loading Your Vehicle" in the Index cause serious injury. Check all tires frequently to maintain the recommended pressure. Tire pressure should be checked when your tires are cold. D Overinflated - 1999 GMC Sonoma | Owner's Manual - Page 282
. "Cold" means your vehicle has been sitting for at least three hours or driven no more than 1 mile (1.6 km). NOTICE: (Continued) If your tires have too much air (overinflation), you can get the following: D Unusual wear D Bad handling D Rough ride D Needless damage from road hazards. When to Check - 1999 GMC Sonoma | Owner's Manual - Page 283
km). 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's Time for New Tires" and "Wheel Replacement" later in this section for more information. The purpose of regular rotation is to achieve more - 1999 GMC Sonoma | Owner's Manual - Page 284
parts to which it is fastened, can make wheel nuts become loose after a time. The wheel could come off and cause an accident. When you change a wheel, remove Index.) One way to tell when it's time for new tires is to check the treadwear indicators, which will appear when your tires have only 1/16 - 1999 GMC Sonoma | Owner's Manual - Page 285
endurance, handling, speed rating, traction, ride and other things during normal service on your vehicle. If your tires have an all-season tread design, the will be followed by an "MS" (for mud and snow). If you ever replace your tires with those not having a TPC Spec number, make sure they are - 1999 GMC Sonoma | Owner's Manual - Page 286
car tires. The Uniform Tire Quality Grading system does not apply to deep tread, winter- available on General Motors passenger cars and light trucks may vary with respect to these conditions of their use, however, and may depart significantly from the norm due to variations in driving habits, service - 1999 GMC Sonoma | Owner's Manual - Page 287
one it replaces. If you need to replace any of your wheels, wheel bolts or wheel nuts, replace them only with new GM original equipment parts. This replaced. If the wheel leaks air, replace it (except some aluminum wheels, which can sometimes be repaired). See your dealer if any of these conditions - 1999 GMC Sonoma | Owner's Manual - Page 288
can also 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" in the Index for more information. Used Replacement Wheels Tire - 1999 GMC Sonoma | Owner's Manual - Page 289
manufacturer's warnings and instructions. And always open your doors or windows when you're cleaning the inside. Never use these to clean your vehicle: D D D D D D D D D Gasoline Benzene Naphtha Carbon Tetrachloride Acetone Paint Thinner Turpentine Lacquer Thinner Nail Polish Remover They can all - 1999 GMC Sonoma | Owner's Manual - Page 290
manual says you can. In many uses, these will damage your vehicle: Here are some cleaning tips: D D D D Alcohol Laundry Soap Bleach Reducing Agents D D D D Always read the instructions Capture Non-Solvent Dry Spot and Soil Remover for cleaning fabric and carpet. They will clean normal spots and - 1999 GMC Sonoma | Owner's Manual - Page 291
removed as follows: 1. Carefully scrape off excess stain. 2. First, clean with cool water and allow to dry completely. 3. If a stain remains, follow instructions with this protection, you still need to clean your upholstery and carpet often to keep it looking new. Further information on cleaning is - 1999 GMC Sonoma | Owner's Manual - Page 292
the windshield and even make it difficult to see through the windshield under certain conditions. Cleaning Glass Surfaces Glass should be cleaned often. GM Glass Cleaner or a liquid household glass cleaner will remove normal tobacco smoke and dust films on interior glass. (See "Appearance Care and - 1999 GMC Sonoma | Owner's Manual - Page 293
; replace blades that look worn. Cleaning the Outside of Your Vehicle The paint finish on your vehicle provides beauty, depth of color, gloss retention and durability. Washing Your Vehicle The best way to preserve your vehicle's finish is to keep it clean by washing it often with lukewarm or cold - 1999 GMC Sonoma | Owner's Manual - Page 294
Use lukewarm or cold water, a soft cloth and a car washing soap to clean exterior lamps and lenses. Follow instructions under "Washing Your the surface. Do not use chrome polish on any wheels other than chrome-plated wheels. Don't take your vehicle through an automatic car wash that has silicon - 1999 GMC Sonoma | Owner's Manual - Page 295
or replacement, make sure the body repair shop applies anti-corrosion material to the parts repaired or replaced to chips and scratches can be repaired with touch-up materials available from your dealer or other service outlets. Larger areas of finish damage can be corrected in your dealer's body - 1999 GMC Sonoma | Owner's Manual - Page 296
removed, accelerated corrosion (rust) can occur on the underbody parts such as fuel lines, frame, floor pan and exhaust system system can do this for you. Chemical Paint Spotting Some weather and atmospheric conditions of new vehicles damaged by this fallout condition within 12 months or 12,000 miles - 1999 GMC Sonoma | Owner's Manual - Page 297
Use on chrome, stainless steel, nickel, copper and brass Removes soil and black marks from whitewalls Cleans vinyl tops, upholstery and convertible tops Removes dirt, grime, smoke and fingerprints Protects leather, wood, acrylics, Plexiglas , plastic, rubber and vinyl Cleans carpets, seats, interior - 1999 GMC Sonoma | Owner's Manual - Page 298
VIN is the engine code. This code will help you identify your engine, specifications and replacement parts. X-06-0608-X Service Parts Identification Label your vehicle. The VIN also appears on the Vehicle Certification and Service Parts labels and the certificates of title and registration. D D D - 1999 GMC Sonoma | Owner's Manual - Page 299
vehicle unless you check with your dealer first. Some electrical equipment can damage your vehicle and the damage wouldn't be covered by your warranty. Some add-on electrical equipment can keep other components from working as they should. Your vehicle has an air bag system. Before attempting to - 1999 GMC Sonoma | Owner's Manual - Page 300
you can get along without -- like the radio or cigarette lighter -- and use its fuse, if it is the correct amperage. Replace it as soon as you can. Instrument Panel Fuse Block The instrument panel fuse block is at the driver's end of the instrument panel. Remove the cover by turning the fastener - 1999 GMC Sonoma | Owner's Manual - Page 301
Panel Cluster, B+ Power Parking Lamps, Power Window Switch, TBC, Ashtray Lamp Not Used Headlamp Switch, Body Controls TBC, Headlamp Relay Courtesy Lamps, Inadvertent Power Relay HVAC Control Head Turn Signal Instrument Panel Cluster, Engine Controls Interior Illumination 4 5 6 7 Fuse/Circuit - 1999 GMC Sonoma | Owner's Manual - Page 302
Engine Control (VCM, PCM, Transmission) Supplemental Inflatable Restraint Front Wiper Not Used Radio Battery Not Used HVAC I, HVAC Control Head, HVAC Devices Anti-Lock Brakes Rear Wiper Radio, Ignition The fuse block is under the hood on the driver's side of the engine compartment. Remove the cover - 1999 GMC Sonoma | Owner's Manual - Page 303
Right Rear Parking Lamps Not Used Left Headlamp Right Headlamp Front Parking Lamps I/P Fuse Block Feed Engine Sensors/Solenoids, MAF, CAM, PURGE, VENT Engine Control Module, Fuel Pump Module, Oil Pressure Anti-Lock Brake System Engine Control Module Injectors Brake-Transmission Shift Interlock 6-65 - 1999 GMC Sonoma | Owner's Manual - Page 304
Charging IGN 1 Accessory Feeds, Electric Brake Parking Lamps Left Rear Parking Lamps HTDSEAT HVAC TRCHMSL RRDFOG TBC CRANK HAZLP VECHMSL HTDMIR ATC STOPLP RR W/W Name IGN C Usage Starter Solenoid, Fuel Pump, PRNDL Not Used HVAC System Not Used Not Used Truck Body Computer Clutch Switch, NSBU Switch - 1999 GMC Sonoma | Owner's Manual - Page 305
Tail and Stoplamps Front Sidemarker Lamps Front Turn Signal Lamps Center High-Mounted Stoplamp Quantity 2 2 2 2 2 2 Number 9006 HB4 9005 HB3 3057 194 3157NA 577 Capacities and Specifications Engine Type VIN Code Firing Order Horsepower (T Series) Horsepower (S Series) Thermostat Specification Spark - 1999 GMC Sonoma | Owner's Manual - Page 306
Cooling System Capacity* Engine 2.2L L4 Auto./Manual "VORTEC" 4300 V6 Auto. "VORTEC" 4300 V6 Manual Crankcase Capacity* Engine Quantity with Filter 2.2L L4 4.5 quarts (4.3 L) "VORTEC" 4300 V6 4.5 quarts (4.3 L) Automatic Transmission 1.75 lbs (0.79kg) *After refill, the level must be checked. 6-68 - 1999 GMC Sonoma | Owner's Manual - Page 307
and are subject to change. If a part listed in this manual is not the same as the part used in your vehicle when it was built, or if you have any questions, please contact your GM dealer. Engine Thermostat Oil Filter Air Cleaner Filter PCV Valve Automatic Transmission Filter Kit Spark Plugs Fuel - 1999 GMC Sonoma | Owner's Manual - Page 308
yellowblue Vehicle Dimensions* Wheelbase Reg Cab Short Box ...108.3 inches (275.1 cm) Reg Cab Long Box ...117.9 inches (299.5 cm) Extended Cab ...122.9 inches (312.2 cm) Length Reg Cab Short Box ...189.0 inches (480.1 cm) Reg Cab Long Box ...204.9 inches (520.4 cm) Extended Cab ...203.6 inches (517 - 1999 GMC Sonoma | Owner's Manual - Page 309
7-29 Introduction Part A: Scheduled Maintenance Services Short Trip/City Scheduled Maintenance Long Trip/Highway Scheduled Maintenance 7-42 7-46 7-48 7-51 Part B: Owner Checks and Services Part C: Periodic Maintenance Inspections Part D: Recommended Fluids and Lubricants Part E: Maintenance Record - 1999 GMC Sonoma | Owner's Manual - Page 310
maintenance can even affect the quality of the air we breathe. Improper fluid levels or the wrong tire inflation can increase the level of emissions from your vehicle. To help protect our environment, and to keep your vehicle in good condition, please maintain your vehicle properly. Have you - 1999 GMC Sonoma | Owner's Manual - Page 311
let your dealer's service department or another qualified service center do these jobs. "Part B: Owner Checks and Services" tells you what should be checked and when. It also explains what you can easily do to help keep your vehicle in good condition. "Part C: Periodic Maintenance Inspections - 1999 GMC Sonoma | Owner's Manual - Page 312
needs vary. You may need more frequent checks and replacements. So please read the following and note how you drive. If you have any questions on how to keep your vehicle in good condition, see your dealer. This part tells you the maintenance services you should have done and when you should - 1999 GMC Sonoma | Owner's Manual - Page 313
Every 30,000 Miles (50 000 km): Air Cleaner Filter Replacement. Fuel Filter Replacement. Every 50,000 Miles (83 000 km): Automatic Transmission Service (normal conditions). Every 60,000 Miles (100 000 km): Engine Accessory Drive Belt Inspection. Fuel Tank, Cap and Lines Inspection. D Most trips are - 1999 GMC Sonoma | Owner's Manual - Page 314
,000 Miles (166 000 km): Spark Plug Wire Inspection. Spark Plug Replacement. 4.3L V6 Engine Only: Positive Crankcase Ventilation (PCV) Valve Inspection. Every 150,000 Miles (240 000 km): Cooling System Service (or every 60 months, whichever occurs first). These intervals only summarize maintenance - 1999 GMC Sonoma | Owner's Manual - Page 315
Replacement. Air Cleaner Filter Replacement. Front Wheel Bearing Repack (2WD only) (or at each brake relining, whichever occurs first). Every 50,000 Miles (83 000 km): Automatic Transmission Service (normal conditions). Long Trip/Highway Intervals Every 60,000 Miles (100 000 km): Engine Accessory - 1999 GMC Sonoma | Owner's Manual - Page 316
services be performed at the indicated intervals and the maintenance be recorded. # Lubricate the front suspension, ball joints, steering linkage, parking brake cable guides, propshaft splines, universal joints and brake pedal springs. D D engine oil change. At subsequent oil changes, check - 1999 GMC Sonoma | Owner's Manual - Page 317
occurs first). (See footnote #.) j Check rear/front axle fluid level and add fluid as needed. Check constant velocity joints and axle seals for leaking. (See footnote **.) 3,000 Miles (5 000 km) DATE ACTUAL MILEAGE SERVICED BY: j Change engine oil and filter (or every 3 months, whichever occurs - 1999 GMC Sonoma | Owner's Manual - Page 318
occurs first). (See footnote #.) j Check rear/front axle fluid level and add fluid as needed. Check constant velocity joints and axle seals for leaking. (See footnote **.) 9,000 Miles (15 000 km) DATE ACTUAL MILEAGE SERVICED BY: j Change engine oil and filter (or every 3 months, whichever occurs - 1999 GMC Sonoma | Owner's Manual - Page 319
add fluid as needed. Check constant velocity joints and axle seals for leaking. (See footnote **.) j For Two-Wheel-Drive vehicles only: Clean and repack the front wheel bearings (or at each brake relining, whichever occurs first). j Change automatic transmission fluid and filter if the vehicle is - 1999 GMC Sonoma | Owner's Manual - Page 320
add fluid as needed. Check constant velocity joints and axle seals for leaking. (See footnote **.) 21,000 Miles (35 000 km) DATE ACTUAL MILEAGE SERVICED BY: j Change engine oil and filter (or every 3 months, whichever occurs first). An Emission Control Service. j Lubricate chassis components (or - 1999 GMC Sonoma | Owner's Manual - Page 321
add fluid as needed. Check constant velocity joints and axle seals for leaking. (See footnote **.) 27,000 Miles (45 000 km) DATE ACTUAL MILEAGE SERVICED BY: j Change engine oil and filter (or every 3 months, whichever occurs first). An Emission Control Service. j Lubricate chassis components (or - 1999 GMC Sonoma | Owner's Manual - Page 322
at each brake relining, whichever occurs first). Replace fuel filter. An Emission Control Service. (See footnote[.) j Replace air cleaner filter. An Emission Control Service. j Change automatic transmission fluid and filter if the vehicle is mainly driven under one or more of these conditions: - In - 1999 GMC Sonoma | Owner's Manual - Page 323
level and add fluid as needed. Check constant velocity joints and axle seals for leaking. (See footnote **.) 36,000 Miles (60 000 km) DATE ACTUAL MILEAGE SERVICED BY: 39,000 Miles (65 000 km) An Emission Control Service. j Change engine oil and filter (or every 3 months, whichever occurs first - 1999 GMC Sonoma | Owner's Manual - Page 324
axle fluid level and add fluid as needed. Check constant velocity joints and axle seals for leaking. (See footnote **.) j j j Change engine oil and filter (or every 3 months, whichever occurs first). An Emission Control Service. j Lubricate chassis components (or every 3 months, whichever occurs - 1999 GMC Sonoma | Owner's Manual - Page 325
air cleaner filter if you are driving in dusty conditions. Replace filter if necessary. An Emission Control Service. (See footnote[.) j For Two-Wheel-Drive vehicles only: Clean and repack the front wheel bearings (or at each brake relining, whichever occurs first). j Change automatic transmission - 1999 GMC Sonoma | Owner's Manual - Page 326
km) (Continued) Check rear/front axle fluid level and add fluid as needed. Check constant velocity joints and axle seals automatic transmission fluid, change both the fluid and filter. Manual transmission fluid doesn't require change. DATE ACTUAL MILEAGE SERVICED BY: j Change engine oil and filter - 1999 GMC Sonoma | Owner's Manual - Page 327
add fluid as needed. Check constant velocity joints and axle seals for leaking. (See footnote **.) 57,000 Miles (95 000 km) DATE ACTUAL MILEAGE SERVICED BY: j Change engine oil and filter (or every 3 months, whichever occurs first). An Emission Control Service. j Lubricate chassis components (or - 1999 GMC Sonoma | Owner's Manual - Page 328
engine accessory drive belt. An Emission Control Service. j Replace fuel filter. An Emission Control Service. (See footnote[.) j Replace air cleaner filter. An Emission Control Service. j Inspect fuel tank, cap and lines for damage or leaks. Inspect fuel cap gasket for any damage. Replace parts - 1999 GMC Sonoma | Owner's Manual - Page 329
occurs first). (See footnote #.) j Check rear/front axle fluid level and add fluid as needed. Check constant velocity joints and axle seals for leaking. (See footnote **.) 63,000 Miles (105 000 km) DATE ACTUAL MILEAGE SERVICED BY: j Change engine oil and filter (or every 3 months, whichever - 1999 GMC Sonoma | Owner's Manual - Page 330
axle fluid level and add fluid as needed. Check constant velocity joints and axle seals for leaking. (See footnote **.) j j j Change engine oil and filter (or every 3 months, whichever occurs first). An Emission Control Service. j Lubricate chassis components (or every 3 months, whichever occurs - 1999 GMC Sonoma | Owner's Manual - Page 331
driving in dusty conditions. Replace filter if necessary. An Emission Control Service. (See footnote[.) j Check rear/front axle fluid level and add fluid as needed. Check constant velocity joints and axle seals for leaking. (See footnote **.) j Change automatic transmission fluid and filter if the - 1999 GMC Sonoma | Owner's Manual - Page 332
occurs first). (See footnote #.) j Check rear/front axle fluid level and add fluid as needed. Check constant velocity joints and axle seals for leaking. (See footnote **.) 81,000 Miles (135 000 km) DATE ACTUAL MILEAGE SERVICED BY: j Change engine oil and filter (or every 3 months, whichever - 1999 GMC Sonoma | Owner's Manual - Page 333
the front wheel bearings (or at each brake relining, whichever occurs first). j Change automatic transmission fluid and filter if the vehicle is mainly driven 90,000 Miles (150 000 km) DATE ACTUAL MILEAGE SERVICED BY: under one or more of these conditions: - In heavy city traffic where the - 1999 GMC Sonoma | Owner's Manual - Page 334
j Change engine oil and filter (or every 3 months, whichever occurs first). An Emission Control Service. j Lubricate chassis components (or every 3 months, whichever occurs first). (See footnote #.) j Check rear/front axle fluid level and add fluid as needed. Check constant velocity joints and axle - 1999 GMC Sonoma | Owner's Manual - Page 335
j Change engine oil and filter (or every 3 months, whichever occurs first). An Emission Control Service. j Lubricate chassis components (or every 3 months, whichever occurs first). (See footnote #.) j Check rear/front axle fluid level and add fluid as needed. Check constant velocity joints and axle - 1999 GMC Sonoma | Owner's Manual - Page 336
automatic transmission fluid, change both the fluid and filter. Manual transmission fluid doesn't require change. 4.3L V6 Engine Only: Inspect Positive Crankcase Ventilation (PCV) valve. An Emission Control Service. DATE ACTUAL MILEAGE 150,000 Miles (240 000 km) j Drain, flush and refill cooling - 1999 GMC Sonoma | Owner's Manual - Page 337
ball joints, steering linkage, parking brake cable guides, propshaft splines, universal joints and brake pedal springs. + A good time to check your brakes is during tire rotation. See "Brake System Inspection" under "Periodic Maintenance Inspections" in Part C of this schedule. ** Drive axle service - 1999 GMC Sonoma | Owner's Manual - Page 338
/front axle fluid level and add fluid as needed. Check constant velocity joints and axle seals for leaking. (See footnote **.) j Change automatic transmission fluid and filter if the vehicle is mainly driven under one or more of these conditions: - In heavy city traffic where the outside temperature - 1999 GMC Sonoma | Owner's Manual - Page 339
Change engine oil and filter (or every 12 months, whichever occurs first). An Emission Control Service. j Lubricate chassis components (or every 12 months, whichever occurs first). (See footnote #.) j Check rear/front axle fluid level and add fluid as needed. Check constant velocity joints and axle - 1999 GMC Sonoma | Owner's Manual - Page 340
add fluid as needed. Check constant velocity joints and axle seals for leaking. (See footnote **.) j For Two-Wheel-Drive vehicles only: Clean and repack the front wheel bearings (or at each brake relining, whichever occurs first). j Change automatic transmission fluid and filter if the vehicle is - 1999 GMC Sonoma | Owner's Manual - Page 341
and add fluid as needed. Check constant velocity joints and axle seals for leaking. (See footnote **.) j Change automatic transmission fluid and filter if the vehicle is mainly driven 45,000 Miles (75 000 km) DATE ACTUAL MILEAGE SERVICED BY: under one or more of these conditions: - In heavy city - 1999 GMC Sonoma | Owner's Manual - Page 342
listed previously and, therefore, haven't changed your automatic transmission fluid, change both the fluid and filter. Manual transmission fluid doesn't require change. DATE ACTUAL MILEAGE SERVICED BY: j Change engine oil and filter (or every 12 months, whichever occurs first). An Emission - 1999 GMC Sonoma | Owner's Manual - Page 343
add fluid as needed. Check constant velocity joints and axle seals for leaking. (See footnote **.) j For Two-Wheel-Drive vehicles only: Clean and repack the front wheel bearings (or at each brake relining, whichever occurs first). j Change automatic transmission fluid and filter if the vehicle is - 1999 GMC Sonoma | Owner's Manual - Page 344
engine accessory drive belt. An Emission Control Service. Replace fuel filter. An Emission Control Service. (See footnote[.) j Replace air cleaner filter. An Emission Control Service. j Inspect fuel tank, cap and lines for damage or leaks. Inspect fuel cap gasket for any damage. Replace parts - 1999 GMC Sonoma | Owner's Manual - Page 345
footnote #.) j Check rear/front axle fluid level and add fluid as needed. Check constant velocity joints and axle seals for leaking. (See footnote **.) j Change automatic transmission fluid and filter if the vehicle is mainly driven 75,000 Miles (125 000 km) DATE ACTUAL MILEAGE SERVICED BY: 7-37 - 1999 GMC Sonoma | Owner's Manual - Page 346
Change engine oil and filter (or every 12 months, whichever occurs first). An Emission Control Service. j Lubricate chassis components (or every 12 months, whichever occurs first). (See footnote #.) j Check rear/front axle fluid level and add fluid as needed. Check constant velocity joints and axle - 1999 GMC Sonoma | Owner's Manual - Page 347
An Emission Control Service. (See footnote[.) j Replace air cleaner filter. An Emission Control Service. j Rotate tires. See "Tire Inspection and Rotation" in the Index for proper rotation pattern and additional information. (See footnote +.) j Change automatic transmission fluid and filter if the - 1999 GMC Sonoma | Owner's Manual - Page 348
your vehicle under severe service conditions listed j DATE ACTUAL MILEAGE SERVICED BY: previously and, therefore, haven't changed your automatic transmission fluid, change both the fluid and filter. Manual transmission fluid doesn't require change. 4.3L V6 Engine Only: Inspect Positive Crankcase - 1999 GMC Sonoma | Owner's Manual - Page 349
and refill cooling system (or every 60 months since last service, whichever occurs first). See "Engine Coolant" in the Index for what to use. Inspect hoses. Clean radiator, condenser, pressure cap and neck. Pressure test the cooling system and pressure cap. An Emission Control Service. DATE ACTUAL - 1999 GMC Sonoma | Owner's Manual - Page 350
damaged safety belt system parts. If you see anything that might keep a safety belt system from doing its job, have it repaired. Have any torn or frayed safety belts replaced. Also look for any opened or broken air bag coverings, and have them repaired or replaced. (The air bag system does not need - 1999 GMC Sonoma | Owner's Manual - Page 351
inspected and repaired if needed. Automatic Transmission Check Check the transmission fluid level; add if needed. See "Automatic Transmission Fluid" in the Index. A fluid loss may indicate a problem. Check the system and repair if needed. Hydraulic Clutch System Check Check the fluid level in the - 1999 GMC Sonoma | Owner's Manual - Page 352
. 3. On automatic transmission vehicles, try to start the engine in each gear. The starter should work only in PARK (P) or NEUTRAL (N). If the starter works in any other position, your vehicle needs service. On manual transmission vehicles, put the shift lever in NEUTRAL (N), push the clutch down - 1999 GMC Sonoma | Owner's Manual - Page 353
only. With the engine running, shift to PARK (P). Then release all brakes. On all vehicles, the key should come out only in LOCK. Parking Brake and Automatic Transmission PARK (P) Mechanism Check D To check the PARK (P) mechanism's holding ability: Underbody Flushing Service CAUTION: When you - 1999 GMC Sonoma | Owner's Manual - Page 354
swollen or deteriorated. Inspect all pipes, fittings and clamps; replace as needed. Clean the outside of the radiator and air conditioning condenser. To help ensure proper operation, a pressure test of the cooling system and pressure cap is recommended at least once a year. Steering, Suspension and - 1999 GMC Sonoma | Owner's Manual - Page 355
calipers, parking brake, etc. Check parking brake adjustment. You may need to have your brakes inspected more often if your driving habits or conditions result in frequent braking. Drive Axle Service Check rear/front axle fluid level and add as needed. Check constant velocity joints and axle seals - 1999 GMC Sonoma | Owner's Manual - Page 356
Washer Solvent (GM Part No. 1051515) or equivalent. Hydraulic Clutch Hydraulic Clutch Fluid (GM Part System No. 12345347 or equivalent DOT-3 Brake Fluid). Power Steering System Manual Transmission with V6 Engine Manual Transmission with L4 Engine Automatic Transmission Key Lock Cylinders GM - 1999 GMC Sonoma | Owner's Manual - Page 357
80W-90 Axle Lubricant; use only GM Part No. 1052271. Do not add friction modifier. Automatic Transfer Case Fluid (GM Part No. 12378396). USAGE Rear Driveline Center Spline and Universal Joints Constant Velocity Universal Joint FLUID/LUBRICANT Chassis Lubricant (GM Part No. 12377985 or equivalent) or - 1999 GMC Sonoma | Owner's Manual - Page 358
Conditioning Weatherstrip Squeaks Dielectric Silicone Grease (GM Part No. 12345579 or equivalent). Synthetic Grease with Teflon, SuperlubeR (GM Part No. 12371287 or equivalent). Fuel Filler Door Multi-Purpose Lubricant, and Rear Folding SuperlubeR (GM Part No. 12346241 or equivalent). Seat - 1999 GMC Sonoma | Owner's Manual - Page 359
yellowblue Part E: Maintenance Record After the scheduled services are performed, record the date, odometer reading and who performed the service in the boxes provided after the maintenance interval. Any additional information from "Owner Checks and Services" or "Periodic Maintenance" can be added - 1999 GMC Sonoma | Owner's Manual - Page 360
yellowblue Maintenance Record DATE ODOMETER READING SERVICED BY MAINTENANCE PERFORMED 7-52 - 1999 GMC Sonoma | Owner's Manual - Page 361
yellowblue Section 8 Customer Assistance Information Here you will find out how to contact GMC if you need assistance. This section also tells you how to obtain service publications and how to report any safety defects. 8-2 8-4 8-4 8-5 8-6 8-7 8-8 Customer Satisfaction Procedure Customer Assistance - 1999 GMC Sonoma | Owner's Manual - Page 362
and to GMC. Normally, any concerns with the sales transaction or the operation of your vehicle will be resolved by your dealer's sales or service departments. matter has already been reviewed with the sales, service or parts manager, contact the owner of the dealership or the general manager. 8-2 - 1999 GMC Sonoma | Owner's Manual - Page 363
dealership without further help, contact the GMC Consumer Relations Manager by calling 1-800-GMC-8782 (1-800-462-8782, Customer Assistance information available to give the Customer Assistance Representative: When contacting GMC, please remember that your concern will likely be resolved at - 1999 GMC Sonoma | Owner's Manual - Page 364
-free number for assistance. If a U.S. customer wishes to write to GMC, the letter should be addressed to GMC's Customer Assistance Center. United States Pontiac-GMC Customer Assistance Center P.O. Box 436008 Pontiac, MI 48343-6008 1-800-GMC-8782 (1-800-462-8782) 1-800-462-8583 (For Text Telephone - 1999 GMC Sonoma | Owner's Manual - Page 365
devices (TTYs)) Roadside Assistance: 1-800-268-6800 If toll free service is not available in the Caribbean, call Puerto Rico 1-787-763-1315 purchase/lease. See your dealer for more details or call the GM Mobility Assistance Center at 1-800-323-9935. Text telephone (TTY) users, call 1-800-833-9935 - 1999 GMC Sonoma | Owner's Manual - Page 366
service station (up to $4.00) will be covered. Jump Start: No-start situations which require a battery jump start will be covered at no charge. Lock Out: Replacement keys or locksmith service will be covered through Roadside Assistance by calling 1-800-GMC-8782. Please be prepared to provide - 1999 GMC Sonoma | Owner's Manual - Page 367
services listed are available to retail and retail lease customers operating 1999 GMC light duty trucks for a period of 3 years/36,000 miles (60 000 km). All services must be pre-arranged by GMC number and color of your GMC truck D Mileage of vehicle and description of problem Roadside Assistance - 1999 GMC Sonoma | Owner's Manual - Page 368
support program for new vehicles. The Courtesy Transportation program is offered to retail purchase/lease customers in conjunction with the Bumper to Bumper actual costs and be supported by original receipts. Plan Ahead When Possible When your vehicle requires warranty service, you should contact - 1999 GMC Sonoma | Owner's Manual - Page 369
a maximum of $30.00 per day supported by receipts. This requires that you sign and such as shuttle service, may not be Limited Warranty, alternative transportation may be pursuant to the terms and conditions described herein at its Bumper-to-Bumper warranty coverage period, but it is not part - 1999 GMC Sonoma | Owner's Manual - Page 370
it finds that a safety defect exists in a group of vehicles, it may order a recall and remedy campaign. However, NHTSA cannot become involved in individual problems between you, your dealer or General Motors. To contact NHTSA, you may either call the Auto Safety Hotline toll-free at 1-800-424-9393 - 1999 GMC Sonoma | Owner's Manual - Page 371
-GMC Customer Assistance Center P.O. Box 436008 Pontiac, MI 48343-6008 In Canada, please call us at 1-800-263-3777 (English) or 1-800-263-7854 (French). Or, write: General Motors of Canada Limited Customer Communication Centre, 163-005 1908 Colonel Sam Drive Oshawa, Ontario L1H 8P7 Ordering Service - 1999 GMC Sonoma | Owner's Manual - Page 372
in with your check, money order, or credit card information to Helm, Incorporated (address below.) CURRENT PUBLICATIONS FOR 1999 GMC SERVICE MANUALS Service Manuals have the diagnosis and repair information on engines, transmission, axle, suspension, brakes, electrical, steering, body, etc. RETAIL - 1999 GMC Sonoma | Owner's Manual - Page 373
MODEL NAME YEAR 1999 1999 1999 1999 QTY. PRICE EACH* $90.00 $50.00 $20.00 $15.00 TOTAL PRICE 1 9 9 9 G M S H I P T O PUBLICATION FORM NUMBER ITEM DESCRIPTION Service Manual Car & Light Truck Transmission Unit Repair Owner's Manual In Portfolio Owner's Manual Without Portfolio NOTE: Dealers - 1999 GMC Sonoma | Owner's Manual - Page 374
yellowblue NOTES 8-14 - 1999 GMC Sonoma | Owner's Manual - Page 375
Warning Light ...2-60, 4-7 Anti-Lock Brakes ...4-7 Appearance Care ...6-51 Appearance Care and Materials ...6-59 A Arbitration Program ...8-4 Armrest, Storage ...2-47 Ashtrays ...2-48 Audio System Tips ...3-23 Audio Systems ...3-6 Automatic Headlamp System ...2-41 Automatic Transmission Check - 1999 GMC Sonoma | Owner's Manual - Page 376
Adjustment ...6-34 Anti-Lock ...4-7 Master Cylinder ...6-31 Pedal Travel ...6-34 Replacing System Parts ...6-34 Trailer ...4-50 Wear ...6-33 Brake-Transmission Shift Interlock Check ...7-44 Braking ...4-6 Braking in Emergencies ...4-9 Break-In, New Vehicle ...2-12 Brightness Control ...2-43 BTSI - 1999 GMC Sonoma | Owner's Manual - Page 377
a Trailer ...4-52 Drunken Driving ...4-3 asy Entry Seat ...1-5 Electrical Equipment, Adding ...3-23, 6-61 Electrical System ...6-61 Engine ...6-9, 6-10 Capacities ...6-68 Coolant ...5-11, 6-26, 6-68 Coolant Heater ...2-17 Coolant Level Check ...7-42 Coolant Temperature Gage ...2-61 Exhaust ...2-31 - 1999 GMC Sonoma | Owner's Manual - Page 378
yellowblue Exhaust, Engine ...2-31, 4-39 Exit Lighting ...2-44 Express-Down Window ...2-33 Extender, Safety Belt ...1-52 abric Cleaning ...6-52 Fifth Gear, Manual Transmission ...2-22 Filling a Portable Fuel Container ...6-7 Filling Your Tank ...6-5 Filter Air ...6-16, 6-70 Remote Oil ...6-15 Finish - 1999 GMC Sonoma | Owner's Manual - Page 379
Lighter ...2-48 Key in the Ignition ...2-10 Positions ...Transmission Lock Check ...Illuminated Entry ...Inflation, Tire ...Inside Day/Night Rearview Mirror ...Inspections Brake System ...Drive Axle ...Engine Cooling System ...Exhaust Systems ...Front Drive Axle Boot Seal ...Steering ...Suspension - 1999 GMC Sonoma | Owner's Manual - Page 380
Lights Air Bag Off ...1-28, 2-56 Air Bag Readiness ...1-22, 2-56 Anti-Lock Brake System Warning ...2-60, 4-7 Brake System Warning ...2-60 Charging System ...2-58 Check Gages ...2-65 Low Fuel ...2-66 Safety Belt Reminder ...1-7, 2-55 Security Warning ...2-64 Service 4WD ...2-65 Service Engine - 1999 GMC Sonoma | Owner's Manual - Page 381
Heated ...2-46 Manual Adjust ...2-45 Power Remote Control ...2-45 Overheating Engine ...5-9 Owner Checks and Services ...7-42 Owner Publications, Ordering ...8-12, 8-13 Park Automatic Transmission ...Shifting Into ...Shifting Out of ...Parking At Night ...Brake ...Brake Mechanism Check ...Lots ...On - 1999 GMC Sonoma | Owner's Manual - Page 382
Seats ...1-2 Seats and Restraint Systems ...1-1 Second Gear Automatic Transmission ...2-20 Manual Transmission ...2-22 Security Warning Light ...2-64 Service 4WD Light ...2-65 Service and Appearance Care ...6-1 Service Engine Soon Light ...2-61 Service Parts Identification Label ...6-60 Service - 1999 GMC Sonoma | Owner's Manual - Page 383
Gear Automatic Transmission ...2-20 Manual Transmission ...2-22 Tilt Steering Wheel ...2-34 Time, Setting ...3-6 Tire Chains ...6-50 Tire Loading ...4-40 Tires 6-41 Alignment and Balance ...6-49 Buying New ...6-47 Changing a Flat ...5-19 Cleaning ...6-57 Inflation ...6-44 Inflation Check ...7-42 - 1999 GMC Sonoma | Owner's Manual - Page 384
24 Transmission Fluid Automatic ...6-17, 6-68, 7-48 Manual Replacement ...6-49 Windows ...2-32 Express-Down ...2-33 Manual ...2-32 Sliding Rear ...2-34 Swing-Out ...2-33 Windshield Washer ...2-37 Fluid ...6-30 Fluid Level Check ...7-42 Windshield Wipers ...2-37 Blade Check ...7-43 Blade Replacement