1998 GMC Sonoma Owner's Manual
1998 GMC Sonoma Manual
1998 GMC Sonoma manual content summary:
- 1998 GMC Sonoma | Owner's Manual - Page 1
I 9 9 8 O W N E R ' S M A N U A L SONOMA 1 C O M F O R T A B L Y I N C O M M A N D ' " ' - 1998 GMC Sonoma | Owner's Manual - Page 2
I - 1998 GMC Sonoma | Owner's Manual - Page 3
f e I H *?L 0 . - 1998 GMC Sonoma | Owner's Manual - Page 4
'ourpassengeri can do. This section contains ve lbout safety bn'* US-~, air bags and child restra I - 1998 GMC Sonoma | Owner's Manual - Page 5
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- 1998 GMC Sonoma | Owner's Manual - Page 7
The 1998 GMC Sonoma Owner's Manual 1-1 2-1 Seats and Restraint Systems This section tells you how to use your seats and safety belts properly. explains the It also "SIR' system. Features and Controls This section explains how to start and operate your vehicle. Comfort Controls and Audio Systems This - 1998 GMC Sonoma | Owner's Manual - Page 8
VOLUNTARY TECHNICIAN CERTIFICATION THROUGH Q?l CERTIFIED 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 - 1998 GMC Sonoma | Owner's Manual - Page 9
the features and controls for your vehicle. In this manual, you'll find that pictures and words work together to explain things quickly. Safety Warnings and Symbols You will find a number of safety cautions in this book - 1998 GMC Sonoma | Owner's Manual - Page 10
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 you what to do tohelp avoid the damage. When you read other manuals, you might see CAUTION and NOTICE warnings in different colors or in different - 1998 GMC Sonoma | Owner's Manual - Page 11
indicator lights: Here are some other symbols you may see: DOOR LOCK UNLOCK TURN SIGNALS ee WINDSHIELD DEFROSTER #I C I COOLANT TEMP BATTERY CHARGING SYSTEM I-1 FUSE LIGHTER u FASTEN SEAT BELTS BRAKE ( ) 0 HORN )tr COOLANT DAYTIME RUNNING ' LAMPS . * * -. 0 WINDOW DEFOGGER ENGINE - 1998 GMC Sonoma | Owner's Manual - Page 12
Model Reference This manual covers these models: Regular Cab Pickup Extended Cab Pickup vi - 1998 GMC Sonoma | Owner's Manual - Page 13
Inflatable Restraint (SIR) System 1-27 1-28 1-30 1-33 1-45 1-48 1-48 1-49 Center Passenger Position 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 1-1 - 1998 GMC Sonoma | Owner's Manual - Page 14
Seats and Seat Controls This section tells you about the seats -- how to adjust them, and fold them up and down. Manual Front Seat . A CAUTION: I You can lose controlof the vehicleif you try to is adjust a manual driver's seat while the vehicle moving. The sudden movement could startle and - 1998 GMC Sonoma | Owner's Manual - Page 15
Supplement to the 1998 GMC Sonoma, GMC Jimmy, GMC Envoy and Oldsrnobile Bravada Owner's Manuals This information should included with the "Daytime be Running Lamps (DRL)" information located in Section 2 in your ownerS manual. This information shouldbe included with the "Engine Compartment Fuse - 1998 GMC Sonoma | Owner's Manual - Page 16
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Manual Lumbar Support (If Equipped) Reclining Seatbacks (Bucket Seats or 60/40 Bench) To adjust the front saatback, lift the leveron the outer side of the seat. Turn the knob to the left to increase lumbar support and to the right to decrease lumbar support. Release the leverto lock the seatback - 1998 GMC Sonoma | Owner's Manual - Page 18
up, your safety beltscan't do their job when you're reclined like this. The shoulder belt can't do its job because it won't beagainst your body. Instead, it will be in front of you. In a crash you could go into it, receiving neckor other injuries. The lap belt can't do its - 1998 GMC Sonoma | Owner's Manual - Page 19
back until the latch catches. If the seatback was reclined before being folded forward, it will return to the reclined position. Easy Entry Seat (Extended Cab) The right front bucket or split-bench seat of your vehicle makes it easy to get in and out of the rear vehicle area. Tilt - 1998 GMC Sonoma | Owner's Manual - Page 20
cab pickup has a jump seat in the rear area. 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 Supplemental Inflatable Restraint (SIR), or air bag system - 1998 GMC Sonoma | Owner's Manual - Page 21
states and Canadian provinces, the law says to wear safety belts. Here's why: They work. It is extremely dangerous to ride in a cargo area, inside or outside of crashes buckling up does matter ...a lot! Your vehicle has a light that comes on as a reminder to buckle up. (See "Safety Belt Reminder - 1998 GMC Sonoma | Owner's Manual - Page 22
Why Safety Belts Work When you ride in or on anything, you go as fast as it goes. Put someone on it. Take the simplest vehicle. Suppose it's just a seat on wheels. 1-8 - 1998 GMC Sonoma | Owner's Manual - Page 23
Get it up to speed. Then stop the vehicle. The rider doesn't stop. The person keeps going until stopped by something. In a real vehicle, it could be the windshield ... - 1998 GMC Sonoma | Owner's Manual - Page 24
or the instrument panel ... or the safety belts! With safety belts, you slow down as the vehicle does. You get more time to stop. You stop over more distance, and your strongest bones take the forces. That's why safety belts make such good sense. - 1998 GMC Sonoma | Owner's Manual - Page 25
hurt. Being a good driver doesn't protect you from things beyond your control, such as bad drivers. Most accidents occurwithin 25 miles (40 km) future. But they are supplemental systems only; so they work with safety belts -- not instead of them. Every air bag system ever offered for sale has - 1998 GMC Sonoma | Owner's Manual - Page 26
this vehicle, see the part of manual called "Children." Follow those rules everyone's protection. for First, you'll want to know which restraint systems your vehicle has. We' latch plate into the buckle until it clicks. 2. Adjust the seat (to see how, see "Seats" in the Index) so you can sit up - 1998 GMC Sonoma | Owner's Manual - Page 27
on the buckle end of the belt as you pull up on the shoulder belt. The lap part of the belt shouldbe worn low and snug on the hips,just touching the thighs.In a crash belt shouldgo over the shoulder and across the chest. These parts of the body are best able to take belt restraining forces. or The - 1998 GMC Sonoma | Owner's Manual - Page 28
What's wrong with this? /1\ CAUTIPV: You can be seriously hurt if your shoulder belt is too loose. In a crash, you would move forward too much, which could increase injury. The shoulder belt shouldfit against your bodv. A: The shoulder belt is too loose. It won't give nearly as much protection - 1998 GMC Sonoma | Owner's Manual - Page 29
&= What's wrong with this? I A CAUTIPY: You can be seriouslyinjured if your belt is buckled in the wrong place like this. a In crash, thebelt would go up over your abdomen. The belt forces would be there, not at the pelvic bones. This could causeserious internal injuries. Always buckle your belt - 1998 GMC Sonoma | Owner's Manual - Page 30
e.' What's wrong with this? '+A CAUT3N: You can be seriouslyinjured if you wear the shoulder belt under your arm. In a crash, your body would move too forward, which would far increase the chance of head and neck injury. Also, the belt would apply too muchforce to the ribs, - 1998 GMC Sonoma | Owner's Manual - Page 31
@ What's wrong with this? You can be seriou y injured by a twisted belt. In a crash, you wouldn'thave the full width of the belt to spread impact forces. a belt is twisted, If make it straightso it can work properly, or ask your dealerto fix it. A: The belt is twisted across the body. 1-17 - 1998 GMC Sonoma | Owner's Manual - Page 32
Safety Belt Use During Pregnancy Safety belts work for everyone,including pregnant women. Like all occupants, they are more likely to be seriously injured if they don't wear safety belts. To unlatch the - 1998 GMC Sonoma | Owner's Manual - Page 33
them properly. Supplemental Inflatable Restraint (SIR) System This part explains the Supplemental Inflatable Restraint (SIR) system or airbag system. Your vehicle has "Next Generation'' reduced-force frontal air bags -- one air bag for the driver and another air bag for the right front passenger - 1998 GMC Sonoma | Owner's Manual - Page 34
hitting things of inside the vehicleor being ejected from Air it. bags are "supplemental restraints" to the safety belts. All air bags even reduced-force air bags are designedto work with safety belts, but don't replace them. Air bags are designed to work only in moderate to severe crashes where the - 1998 GMC Sonoma | Owner's Manual - Page 35
part of this manual called "Children" and see the caution labels onthe sunvisors and the right front passenger's safety belt. I There is an air bag readiness light on the instrument panel, which shows the air bag symbol. The system checks the air bag electrical system for malfunctions. The light - 1998 GMC Sonoma | Owner's Manual - Page 36
How the Air Bag System Works The right front passenger's air bag is in the instrument panel on the passenger's side. Where arethe air bags? The driver's air bag is in the middle of the steering wheel. 1-22 - 1998 GMC Sonoma | Owner's Manual - Page 37
by the angle of the impact and how quickly the vehicle slows down in frontal or near-frontal impacts. The air bag system is designed to work properly under a wide range of conditions, including off-road usage. Observe safe driving speeds, especially rough terrain. on As always, wear your safety belt - 1998 GMC Sonoma | Owner's Manual - Page 38
ll 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 airbag modules and possibly other parts. The servicemanual for your vehicle covers the need to replace other parts. Your vehicle is - 1998 GMC Sonoma | Owner's Manual - Page 39
or the right front passenger's air bag, the bag may not work properly. You may have to replace the air wheel or both the air bag module in the steering bag module and the instrument panel for the right front passenger's bag. Do not open or air break the air bag coverings. If your vehicle ever gets - 1998 GMC Sonoma | Owner's Manual - Page 40
are parts of the air bag system in several places around your vehicle. You don't want the system to inflate while someone is working on your vehicle. Your dealer and the GM Service Manual have information about servicing your vehicle and the air bag system. To purchase a service manual, see "Service - 1998 GMC Sonoma | Owner's Manual - Page 41
Center Passenger Position Lap Belt If your vehicle has a bench seat, someonecan sit in the center position. When you sit in a center seating position, have a lap you safety belt,which has no retractor. To make the belt longer, tilt the latch plateand pull it along the belt. - 1998 GMC Sonoma | Owner's Manual - Page 42
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. These are reserve seating positions equipped with lap belts only. (If your extended cab pickup has the optional side access panel, there - 1998 GMC Sonoma | Owner's Manual - Page 43
shorter, pull the belt as shown until it is snug. Buckle and position it the sarne way as the lap part of the driver's safety belt (see "Driver Position" in the Index). Make sure the release button on the button on the buckle. Don't use child restraints on these seats. They won work properly. I 1-29 - 1998 GMC Sonoma | Owner's Manual - Page 44
and all children smaller than adult size.Neither the distance traveled nor the age and size of the traveler changes the need, air bags. bags plus Air lap-shoulder belts offer the best protection for young children and infants. adults, but not for Neither the vehicle's safety belt system nor its air - 1998 GMC Sonoma | Owner's Manual - Page 45
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. In a crash, an infant in a rear-facing restraint settles intothe restraint, so the crash forces can be distributed across the strongest part of - 1998 GMC Sonoma | Owner's Manual - Page 46
Never hold a baby inyour arms while riding in a vehicle. A baby doesn't weigh much until a crash. During a crash a baby will become so heavy youcan't hold it. For example, ina crash at only 25 mph (40 km/h), a 124b. (5.5 kg) baby will suddenly become a 240-lb. (110 kg) force on your arms. The baby - 1998 GMC Sonoma | Owner's Manual - Page 47
infant restraint, but be an sure to turnoff the passenger's air bag. See "Securing a Child Restraintin the Right Front Seat selecting a child restraint, take into consideration not only the child's weight and size, but alsowhether or not the restraint will be compatible with the motor vehicle in which - 1998 GMC Sonoma | Owner's Manual - Page 48
system designed to restrain or position a child on a continuous flatsurface. With an infant car bed, make sure that the infant's head rests toward the center infant's head, neck and body can have the support they need in a crash. Some infant seats come in two parts -- the base stays secured in the - 1998 GMC Sonoma | Owner's Manual - Page 49
1-35 - 1998 GMC Sonoma | Owner's Manual - Page 50
. (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 ora folward-facing child seat. 1-36 - 1998 GMC Sonoma | Owner's Manual - Page 51
system in your vehicle, but the child also has to be secured within the restraint to help reduce the chance of personal injury. The instructionsthat come with the infant or child restraint will show you how to do that. Both the owner's manual and the child restraint instructions passenger's air bag. - 1998 GMC Sonoma | Owner's Manual - Page 52
. This is because the back the rear-facing child of restraint would be very close to the inflatingair bag. Be sure to turn the air bag before using off a rear-facing child restraint in the right front seat position. Keep in mind that an unsecured child restraint can move around - 1998 GMC Sonoma | Owner's Manual - Page 53
Securing a Child Restraint in the Center Front Seat Position Jump Seats (Extended Cab) Don't use child restrail won't work nronerlv. in ;nos.' )n. The restraints Don't use child restraints in these positions. The restraints won't work properly. 1-39 - 1998 GMC Sonoma | Owner's Manual - Page 54
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. But use this switch only when you want to securea rear-facing child restraint at - 1998 GMC Sonoma | Owner's Manual - Page 55
your ignition key into the switch, push in. and moire 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 - 1998 GMC Sonoma | Owner's Manual - Page 56
air even though theswitch is off. If this ever happens, don't secure rear-facing child a restraint in your vehicle until you have your vehicle serviced. You'll be using the lap-shoulder belt. See the earlier part about the top strap if the child restraint has one. Be sure to follow the instructions - 1998 GMC Sonoma | Owner's Manual - Page 57
5. Pull the rest of the shoulder beltall 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-facingchild restraint, you may find it helpful to use your knee to push - 1998 GMC Sonoma | Owner's Manual - Page 58
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 turn on the right front passenger's air bag when you remove the rear-facing child restraint from the vehicle. To turn the air bag on again, insert your ignition key - 1998 GMC Sonoma | Owner's Manual - Page 59
, the person sitting there won't have the extra protection of an airbag. In a crash, the air bag the wouldn't be able to inflate and help protect person sitting there. Make sure the air bag is turned on unless you are usinga rear-facing child restraint in the right front seat position. Children - 1998 GMC Sonoma | Owner's Manual - Page 60
very close to the child's face or neck? A: 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 - 1998 GMC Sonoma | Owner's Manual - Page 61
A CAUTION: Never do this. has Here a child issitting in a seat that 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 - 1998 GMC Sonoma | Owner's Manual - Page 62
it to theregular safety belt. Checking Your Restraint Systems Now and then, make sure the safety belt reminder light and all your belts, buckles, latch plates, retractors and anchorages are working properly. Look for any other loose ordamaged safety belt system parts. If you see anything that - 1998 GMC Sonoma | Owner's Manual - Page 63
, you'll need to replace airbag system parts. See the part on the air bag system earlier in this section. f IO nelp avoid personal injury, belt assembly must be replaced ifthis vehicle is in a collisionor if "Replace Belt" appears below. See Owner's Manual for more information. Replace Belt ILa - 1998 GMC Sonoma | Owner's Manual - Page 64
fi NOTES 1-50 - 1998 GMC Sonoma | Owner's Manual - Page 65
Keyless Entry System (If Equipped) Tailgate Theft Passlock@ New Vehicle "Break-In" Ignition Positions Starting Your Engine Engine Coolant Heater (If Equipped) Automatic Transmission Operation Manual Transmission Operation Parking Brake Shifting Into PARK (P) (Automatic Transmission Only) Shifting - 1998 GMC Sonoma | Owner's Manual - Page 66
the a ignition key is dangerous for many reasons. A child or others could be badly injured or even killed. They could operate power windows other or controls or even make the vehicle move. Don't leave the keys in vehicle with young children. a 2-2 - 1998 GMC Sonoma | Owner's Manual - Page 67
a pair of identical keys and a key codenumber. NOTICE: Your vehicle has a number of features that can help prevent theft. But you can have lot of a trouble gettinginto your vehicleif you ever lock your keys inside. You may even have to damage your vehicle to get in. be sure you So have - 1998 GMC Sonoma | Owner's Manual - Page 68
Door Locks There are several ways to lock and unlock your vehicle. You can use the Keyless Entry System, if you have this option. You can use your key to unlock your door from the outside. Unlocked doors can be dangerous. Passengers especially children - 1998 GMC Sonoma | Owner's Manual - Page 69
Side Access Panel (Extended Cab) (If Equipped) Power Door Locks (If Equipped) Your vehicle may be equipped witha side access panel for convenience in loading and unloading cargo. If your vehicle has power door locks, the switch is located on the armrest. Remove the ignition key and press LOCK to - 1998 GMC Sonoma | Owner's Manual - Page 70
Part 15 of the FCC Rules. Operation is subject to the following two conditions: system operates on a radio frequency subject to Federal Communications Commission (FCC) Rules and with Industry Canada. Check to determine if battery replacement or resynchronization is necessary. See the instructions - 1998 GMC Sonoma | Owner's Manual - Page 71
Check the location. Other vehicles or objects may be blocking the signal. Take a few steps to the left or right, hold the transmitter higher, and try again. If you're still having trouble, see your dealer or a qualified technician for service works, it's probably time to change the battery. - 1998 GMC Sonoma | Owner's Manual - Page 72
. 3. Align the covers and snap them together. 4. Resynchronize the transmitter. To replace the battery in the keyless entry transmitter: 5. Check the operation of the transmitter. Resynchronization Resynchronization may be necessary due to the security method used by this system. The transmitter - 1998 GMC Sonoma | Owner's Manual - Page 73
the tailgate slightly. 2. Remove both retaining cables. To remove each cable, turn it so the end faces the front. Then, push forward so the larger part of the hole is over the bolt. Pull the end over the bolt. I 3. With the tailgate halfway down, pull the tailgate toward you at the - 1998 GMC Sonoma | Owner's Manual - Page 74
theft-deterrent system. The system is armed once the key is removed from the ignition. Passlock enables fuel if the ignition lock cylinder is turned with a valid key. If a correct key is not used, fuel is disabled. During normal operation, the SECURITY light will go off after the engine is started - 1998 GMC Sonoma | Owner's Manual - Page 75
driving 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 atthis time. You may also want to check the fuse (see"Fuses - 1998 GMC Sonoma | Owner's Manual - Page 76
accessories in the ACCESSORY position could drain your battery and prevent you from starting your vehicle. LOCK (€3): This position locks your ignition, steering wheel and transmission E ACCESSORY (A):This position lets you use things like the radio and the windshield wipers when the engine is off - 1998 GMC Sonoma | Owner's Manual - Page 77
the key straight out. On automatic transmission vehicles, turn the key to LOCK and pull it straight out. Retained Accessory Power Your vehicle is equipped with a Retained Accessory Power (RAP) featurewhich will allow certain features of your vehicle to continue to work up to 20 minutes after the - 1998 GMC Sonoma | Owner's Manual - Page 78
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. Manual Transmission The gear selector should be in NEUTRAL (N) and the parking brake engaged. Hold the clutch pedal to the floor and start the engine. Your - 1998 GMC Sonoma | Owner's Manual - Page 79
down for five more seconds, unless it starts sooner. NOTICE: Your engine is designed to work with the electronics in yourvehicle. If you add electrical parts oraccessories, you could change the way the engine operates. Before adding electrical equipment, check with your dealer. If you don't, your - 1998 GMC Sonoma | Owner's Manual - Page 80
engine operates. Before adding electrical equipment, check withyour dealer. If you don't, your engine mightnot perform properly. If you ever haveto have your vehicle towed, see the part of this manual properly grounded three-prong 110-volt AC outlet. If the cord won't reach, use a heavy-duty three- - 1998 GMC Sonoma | Owner's Manual - Page 81
keep it away from moving engine parts. If you don't, itcould your engine because your vehicle can't move easily. Automatic Transmission Operation Your automatic is recommended thatyou disconnect thebattery cable from the battery prevent discharging your battery. to It is dangerous to get out - 1998 GMC Sonoma | Owner's Manual - Page 82
brake pedal, your vehicle could movevery or rapidly. You could lose control and hit people objects. Don't shift out PARK (P) or of NEUTRAL (N) while your engine : Damage to your transmission caused shifting by out of PARK (P) or NEUTRAL (N) with the engine racing isn't covered by your warranty. To - 1998 GMC Sonoma | Owner's Manual - Page 83
when operating the vehicle under any of these conditions. THIRD (3): This position is also used This could overheat and damage the transmission. Use your brakes or shift into PARK (P) to help control your speed as you go down steep mountain roads, but then you would also want to use your brakes off - 1998 GMC Sonoma | Owner's Manual - Page 84
and the brake pedal, and shift to NEUTRAL (N). Here's how to operate your transmission: FIRST (1): Press the clutch pedal and shift into FIRST (1). Then, slowly let up on the clut.ch pedal as you press the accelerator pedal. NEUTRAL (N): Use this position when you start or idle your engine. 2-20 - 1998 GMC Sonoma | Owner's Manual - Page 85
vehicle is moving could damage your transmission. Use REVERSE (Rj, along with the parking brake, for parking your vehicle. I Shift Light T you have a manual f transmission, you have a SHIFT light. If you skip more than one gear when you downshift, you could lose control of your vehicle. And you - 1998 GMC Sonoma | Owner's Manual - Page 86
system warning light will come on. To release the parking brake hold the regular brake pedal down. I NOTICE: Driving with the parking brake on cause can your rear brakesto overheat. You may haveto replace them, and you could damage other also parts of your vehicle. If you are towing a trailer and - 1998 GMC Sonoma | Owner's Manual - Page 87
PARK (P) (Automatic Transmission Only) 2. Move the shift lever into PARK (P) position like this: 1A CAUTION: I - It can be dangerous to get out of your vehicle if the shift lever is not fully inPARK (P) with the parking brakefirmly set. Your vehicle roll. can If you have leftthe engine running - 1998 GMC Sonoma | Owner's Manual - Page 88
the Engine Running (Automatic Transmission Only) Move the lever up as far as it will go. It canbe dangerous to leave your vehicle with the engine engine running unless have to. you If you have to leave your vehicle with the engine running, be sure your vehicle is in PARK (P) and your parking brake - 1998 GMC Sonoma | Owner's Manual - Page 89
brake. Shifting Out of PARK (P) (Automatic Transmission) Your vehicle has a Brake-Transmission Shift Interlock (BTSI). You have to fully apply your regular brake press the shift lever button if you have the console shift lever). If you ever hold the brake pedal down but still can't shift outof PARK - 1998 GMC Sonoma | Owner's Manual - Page 90
Models Only) Before you get out of your vehicle, turn off your engine, put your manual transmission in REVERSE (R) and firmly apply the parking brake. Parking Over Things That Burn If you are parking on a hill, or if your vehicle is pulling a trailer, see "Towing a Trailer" in the Index - 1998 GMC Sonoma | Owner's Manual - Page 91
your vehicle fixed immediately. Running Your Engine While You're Parked (Automatic Transmission) It's better not to park with the engine running. But if ever you have to, here are some things to know. A CAUTION: Idling the engine with the air system control off could allow dangerous exhaust into - 1998 GMC Sonoma | Owner's Manual - Page 92
when you're onfairly level ground, always set your parking brake and move the shift lever to PARK (P). If you have this feature, your locking rear axle can give you additional traction on snow, mud, ice, sand or gravel. It works like a standard axle most of the time, but when one of the rear - 1998 GMC Sonoma | Owner's Manual - Page 93
above the audio system controls. 4LO: This setting also engages your front axle to give you lights do not come on, you should take your vehicle in for service. An indicator light axle will unlock automatically. 2HI: This setting is for driving in most street and highway situations. Your front axle - 1998 GMC Sonoma | Owner's Manual - Page 94
Nj or the clutch pedal is engaged. On automatic transmission equipped vehicles, if your transfer case does not shift into 4L0, your transmission indicator switch may require adjustment. With your transmission in NEUTRAL (Nj, press and release the 4LO switch. While the 4LO indicator light is flashing - 1998 GMC Sonoma | Owner's Manual - Page 95
On automatic transmission equipped vehicles, if your transfer case does not shift into 4H1, your transmission indicator switch may require adjustment. With your transmission in NEUTRAL (N), press and release the 4HI switch. While the 4HI indicator light is flashing, shift your transmission into PARK - 1998 GMC Sonoma | Owner's Manual - Page 96
Swing-Out Windows (Extended Cab) Sliding Rear Window (If Equipped) When you close the window, be sure the latch catches. 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. Horn Press the steering wheel - 1998 GMC Sonoma | Owner's Manual - Page 97
If Equipped) If you have the tilt steering wheel, you should adjust the steering wheel before you drive. Turn SignaVMultifunction Lever You can Headlamp HighLow Beam Changer Windshield Wipers Windshield Washer Cruise Control (If Equipped) Do not adjust the steering wheel while driving. 2-33 - 1998 GMC Sonoma | Owner's Manual - Page 98
Check the front you to signal a turn or a lane change. and rear. turn signal lamps regularly to make sure they . are working. To signal a turn, move the lever all the way up or down. When theturn is finished, the lever will return automatically are on, this indicator light on the instrument panel - 1998 GMC Sonoma | Owner's Manual - Page 99
clear the window and then either stop or return to your preset speed. You control the windshield wipers by turning the band with the wiper symbol on it. For long orshort delay between wipes. This can be very useful in light rain or snow. Turn the band to choose the delay time. The closer to LOW - 1998 GMC Sonoma | Owner's Manual - Page 100
on long trips. Cruise control does not work at speeds below about 25 mph (40 km/h). A CAU I ION: 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 - 1998 GMC Sonoma | Owner's Manual - Page 101
stay there. 4. Take your foot off the accelerator pedal. Resuming a Set Speed Suppose you set your cruise control at a desired speed and then you apply the brake. This, of course, shuts off cruise control. But you don't need to reset it. Remember, if you hold the switch at R/A longer than a half - 1998 GMC Sonoma | Owner's Manual - Page 102
Using Cruise Control on Hills How well your cruise control will work on hills trouble and don't use cruise control on steep hills. Ending Cruise Control There are two ways to turn off the cruise control: Step lightly on the brake pedal or push the clutch pedal, if you have a manual transmission - 1998 GMC Sonoma | Owner's Manual - Page 103
Exterior Lamps 'A' I - Rotate the knob to the right to the parking lamps symbol to manually turn on: 0 Parking Lamps Sidemarker Lamps Taillamps License Plate Lamps Instrument Panel Lights \ / Rotate the knob to the right to the master lamps symbol to turn on all the lamps listed as well as the - 1998 GMC Sonoma | Owner's Manual - Page 104
bright overhead street lights does not affect the system. The DRL and automatic headlamp system will only be affected when the light sensor sees a change in lighting lasting longer than the delay. To idle your vehicle with the automatic headlamp system off, set the parking brake while the ignition - 1998 GMC Sonoma | Owner's Manual - Page 105
DRL will stay off until you release the parking brake. As with any vehicle, you should turn on the regular headlamp system when you need it. Interior Lamps Brightness Control Turn the switch next to the headlamp switch up to make your instrument panel lights brighter. Turn the switch all the way up - 1998 GMC Sonoma | Owner's Manual - Page 106
help you see while exiting the vehicle. These lights will stay on for a short period of when the doors are open. To return the lamps to automatic operation, press the button again and return it to the or until the ignition key is turnedto RUN or ACCESSORY. The lamps will also stay on for approximately - 1998 GMC Sonoma | Owner's Manual - Page 107
20 minutes when the ignition is off. This will keep your battery from running down. Mirrors Electrochromic Day/Night Inside Rearview Mirror If the ignition key to RUN. 0 Your vehicle may have an automatic electrochromic dayhight rearview mirror. This mirror autornatically changes to reduce glare - 1998 GMC Sonoma | Owner's Manual - Page 108
the autonlatic feature. Thebutton has an indicator light to show it is on. Press the button again to turn the automatic feature off. Power Remote Control Mirror The control is located on the driver's door armrest. Time Delay The automatic mirror has a time delay feature which prevents unnecessary - 1998 GMC Sonoma | Owner's Manual - Page 109
you cut too sharply into the rightlane, you could hit a vehicle on yourright. Check your inside mirror or glance over your shoulder before changinglanes. Front Storage Area Storage may store compact discs insidethe console. Door Storage You will find a storage compartment on each door. ~ 2-45 - 1998 GMC Sonoma | Owner's Manual - Page 110
materials could them on fire set causing damage. To remove the front ashtray, pull the bin upward. I f your vehicle has the center armrest compartment, lift the cover to expose the storage areawhich includes slots for cassettes and a coinholder. To use the lighter, press it in all the way, and - 1998 GMC Sonoma | Owner's Manual - Page 111
out for additional glare protection and a strap for holding small items, such as maps. Visor Vanity Mirror Pull the sun visor down and lift the cover to expose the vanity mirror. Pull the sun visor down and lift the mirror - 1998 GMC Sonoma | Owner's Manual - Page 112
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 install. NOTICE: When using the accessory power outlets, 25 maximum - 1998 GMC Sonoma | Owner's Manual - Page 113
Instrument Panel A. Air Vents B. Instrument Cluster C. Electronic Transfer Case (If Equipped) D. Glove Box E. Audio System E Auxiliary Power Outlets (If Equipped) G . Comfort Controls H. Ashtray I. J. K. L. Air Bag Switch Brake Release Fog Lamps (If Equipped) Lamp Controls 2-49 - 1998 GMC Sonoma | Owner's Manual - Page 114
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. L . Standard Cluster 2-50 - 1998 GMC Sonoma | Owner's Manual - Page 115
Optional Cluster 2-51 - 1998 GMC Sonoma | Owner's Manual - Page 116
warning range tells you that your engine speed is reaching its upper limits. Don't drive very long with the tachometer in the red warning range. If you have a manual transmission, shift to a higher gear as soon as possible. If you have an automatic transmission, lift your foot off the accelerator - 1998 GMC Sonoma | Owner's Manual - Page 117
lights work together to let you know when there's a problem with your vehicle. When one of the warning lights comes on and stays on when you are driving, or when one of the gages shows there may be a problem, check the section that tells you what to do aboutit. Please follow this manual's advice - 1998 GMC Sonoma | Owner's Manual - Page 118
tells you if there is an electrical problem. The system check includes the air bag sensors, the air bag module, the wiring and the diagnostic module. For more information on the air bag system, see "Air Bag" i n the Index. The air bag readiness light should flash for a few+ seconds when you turn - 1998 GMC Sonoma | Owner's Manual - Page 119
you turn the right front passenger's air bag off, this light will come on and stay on to remind you that the air bag has been turned off. This light will go off when you turn the air bag back on again. See "Securing a Child Restraint in the Right Front Seat Position" in the Index - 1998 GMC Sonoma | Owner's Manual - Page 120
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 to show you it is working. (+I It should go olrt once the engine is running. If it stays on, or comes on while you are driving, you may have a problem with - 1998 GMC Sonoma | Owner's Manual - Page 121
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. This light comes on very briefly as a bulb check when you start the engine - 1998 GMC Sonoma | Owner's Manual - Page 122
is fully released, it means you have a brake problem. Your vehicle's hydraulic brake system is divided into two parts. If one part isn't working, the other part can still work and stop you. For good braking, though, you need both parts working well. If the light comes on while you are driving, pull - 1998 GMC Sonoma | Owner's Manual - Page 123
turn off the engine as soon as possible. The anti-lock brake system warning light should come on briefly when you turn the ignition key to RUN. I f the light doesn't come on then. have it fixed so it will be ready to warn you if there is a problem. In "Problems on the Road," this manual shows you - 1998 GMC Sonoma | Owner's Manual - Page 124
not be covered by your warranty. This light should come on, as a check to show you it is working, when the ignition is on and the engine is not running. If the light doesn't come on, have it repaired. This light will also come on during a malfunction in one of two ways: 0 SERVICE ENGINE SOON Your - 1998 GMC Sonoma | Owner's Manual - Page 125
On Steady" following. If the light is still flashing, follow the previous steps, and drive the vehicle to your dealer orqualified service center for service. If so, reinstall the fuel cap, making sure to fully install the cap. The diagnostic system can determine if the fuel cap has been left off or - 1998 GMC Sonoma | Owner's Manual - Page 126
that it so catches fire.You or others could be burned. Check youroil as soon as possible and have your vehicle serviced. NOTICE: Canadian vehicles indicate oil pressure in kPa (kilopascals). Damage to your engine from neglected oil problems can be costly and is not covered by your warranty. 2-62 - 1998 GMC Sonoma | Owner's Manual - Page 127
you turn the key toward START. The light will stay on until the engine starts. Service 4WD Light This light should come on briefly when you turn on the ignition, as a check to show you it is working. SECURITY SERVICE 4WD If the light flashes, the Passlock system has entered a tamper mode. If the - 1998 GMC Sonoma | Owner's Manual - Page 128
things that some owners ask about. None of these show a problem with your fuel gage: The CHECK GAGES light will come on briefly when you are starting the engine. At the gas station, the gas pump shuts off before the gage reads FULL (F). CHECK GAGES It takes a little more or less fuel to fill up - 1998 GMC Sonoma | Owner's Manual - Page 129
b NOTES - 1998 GMC Sonoma | Owner's Manual - Page 130
& NOTES 2-66 - 1998 GMC Sonoma | Owner's Manual - Page 131
Comfort Controls Standard Climate Control System Optional Climate Control System Air Conditioning (If Equipped) Heating Ventilation System Defogging and Defrosting Audio Systems Setting the Clock for Systems without Automatic Tone Control Setting the Clock for Systems with Automatic Tone Control AM - 1998 GMC Sonoma | Owner's Manual - Page 132
and ventilation in your vehicle. Mode Knob The right knob on the control panel allows you to choose the direction of air delivery. Standard Climate Control System OFF: This setting turns the system off. Some outside air will still enter the vehicle whenever the vehicle is moving forward. VENT - 1998 GMC Sonoma | Owner's Manual - Page 133
amount of work. MAX A/C recirculates much of the air inside your vehicle so it cools quickly. This setting directs most of the air through the instrument panel vents and a small amount through the floor vents. Fan Control The knob on the left side of the heating system control panel controls the fan - 1998 GMC Sonoma | Owner's Manual - Page 134
the "VORTEC 4300" engine, when the air conditioner is on, you may sometimes notice slight changes in your vehicle's engine speed and power. This is normal because the system is designed to cycle the compressor on and off to keep the desired temperature. Heating The heater works best if you keep - 1998 GMC Sonoma | Owner's Manual - Page 135
Keep the hood and front air inlet free of ice, snow or any other obstruction (such as leaves). The heater and defroster will work far better, reducing the or cold conditions. Turn the temperature knob to the right and move the fan control toward high. You will find air outlets in the center and on - 1998 GMC Sonoma | Owner's Manual - Page 136
, to be sure you're getting the most out of the advanced engineering that went into it. AM-FM Stereo Setting the Clock for Systems without Automatic Tone Control Press SET. Within five seconds,press and hold the SEEK right arrow until the correctminute appears on the display. Press and hold - 1998 GMC Sonoma | Owner's Manual - Page 137
SEEK buttons to listen to a few seconds of each radio station. SCAN will light up on the display. Press the right arrow to tune in the next higher is weak or noisy, you may want to decrease the treble. Adjusting the Speakers BAL: Turn the control behind the upper knob to move the sound to the left - 1998 GMC Sonoma | Owner's Manual - Page 138
and seven FM2). Just: 1. Turn the radio on. 2. Press AM-FM to select the band. 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 the knob to the right. Turn it to the left to decrease - 1998 GMC Sonoma | Owner's Manual - Page 139
to decrease the treble. Adjusting the Speakers BAL: Turn the control behind the upper knob to system will scan through and play each preset station stored on your pushbuttons for a few seconds. Press either SEEK button or RECALL to stop scanningthrough the preset stations. FADE: Turn the control - 1998 GMC Sonoma | Owner's Manual - Page 140
work well in this player. Once the tape playing, use the knobs VOLUME, BAL is for FADE, BASS and TFEB just as you do for the radio. AM-FM Stereo with Cassette Tape and Automatic Tone Control the Radio PWR-VOL: Press this knob to turn the system on and off. To increase volume, turn the knob to - 1998 GMC Sonoma | Owner's Manual - Page 141
system adjusts automatically tomake up for road and wind noise as you drive. Set the volume at the desired level. Move the control ringbehind the upper knob to the right to adjust the SCV. Then, as you drive, SCV automatically your selection. TUNE: Press this knob lightly so it extends. Turn it to - 1998 GMC Sonoma | Owner's Manual - Page 142
PUSHBUTTONS to program AUTO TONE. Ad,justing the Speakers BAL: Press lightly on this knob to release it from its stored position. Turn the control to the right to adjust sound to the right speakers and to the left to adjust sound to the left speakers. The middle position balances the sound between - 1998 GMC Sonoma | Owner's Manual - Page 143
than that are so thin they may not work well in this player, To load a the VOL, AUTO TONE, BAL, FADE, BASS and TREB controls just asyou do for the radio. The tape symbol and a play first. The player automatically senses if the cassette tape is metal or CrO2 and adjusts for best playback sound. - 1998 GMC Sonoma | Owner's Manual - Page 144
to RUN or ACCESSORY. 2. Turn the radio off. TAPE AUX: Press this button to return to the tape player when playing the radio. The lighted arrow will appear and cleaned. It will still play tapes, but you should clean it as soon as possible to prevent damage to the tapes and player. See "Care of - 1998 GMC Sonoma | Owner's Manual - Page 145
Automatic Tone Control (If Equipped) SCV: Your system has a feature called Speed-Compensated-Volume (SCV). With SCV, your audio system adjusts automatically 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 - 1998 GMC Sonoma | Owner's Manual - Page 146
tone you selected will be automatically selected forthat button. 6. Repeat the steps for each pushbutton. Setting the Tone BASS: Press lightly on this knob to bass BASS control is and to the left to decrease bass. When the rotated, the AUTO TONE display will go blank. TREB: Press lightly on this - 1998 GMC Sonoma | Owner's Manual - Page 147
manual mode, press and release this button until the AUTO TONE display goes blank. This will return the tone adjustment to the BASS and TREB controls. If a BASS or TREB control FADE: Press lightly on this knob to release it from its stored position. Turn the control to the right to adjust the sound - 1998 GMC Sonoma | Owner's Manual - Page 148
RDM (2): Press this button to play the tracks on the disc in random order. While in the RDM mode, RANDOM appears on the display. Press RDM again to return to normal play. NEXT (3): Press NEXT or the SEEK right arrow to search for the next selection. If you hold this button or press it more than once - 1998 GMC Sonoma | Owner's Manual - Page 149
muted in this mode. 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 floor console. Your tape player is built to work best with tapes that are 30 to 45 minutes long on each side. Tapes longer - 1998 GMC Sonoma | Owner's Manual - Page 150
works by using a secret code to disable all radio functions whenever battery power is removed. Your audio system indicate a locked condition anytime battery power has been inte.rrupted.If your battery loses power for the tape player, press CD AUX. The lighted arrow will appear next to the symbol and - 1998 GMC Sonoma | Owner's Manual - Page 151
instructions which follow explainhow to enter your secret code to activate the THEFTLOCK system indicator by the volume control will begin flashing when the any steps, the radio automatically reverts to time and you from the vehicle. 2. Turn the ignition to ACCESSORY or RUN. 3. Turn the radio off. - 1998 GMC Sonoma | Owner's Manual - Page 152
; pause no more than 15 seconds between steps: 1. Turn the ignition to ACCESSORY or RUN. 2. Turn the radio off. 2. Press MN and 000 will appear 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 - 1998 GMC Sonoma | Owner's Manual - Page 153
vehicle's engine, Delco Electronics radio or other systems, and even damage them. Your vehicle's systems may interfere with the operation of sound equipment that has been added improperly. So, before adding sound equipment, check with your dealer and sure to check Federal rules be covering mobile - 1998 GMC Sonoma | Owner's Manual - Page 154
cassette turn. The recommended cleaning cassette is available through your dealership (GM Part No. 12344789). When using a scrubbing action, non-abrasive cleaning cassette, with Cassette Tape Player and Automatic Tone Control: 1. Turn the ignition to RUN or ACCESSORY. 2. Turn the radio off. 3-24 - 1998 GMC Sonoma | Owner's Manual - Page 155
a mild, neutral detergent solution and clean it, wiping from the center to the edge. Be sure never to touch the signal surfxe the cassette tape is in good condition before you have your tape player serviced. Care of Your Compact Disc it. Check every once in a while to be sure the mast is - 1998 GMC Sonoma | Owner's Manual - Page 156
fi NOTES 3-26 - 1998 GMC Sonoma | Owner's Manual - Page 157
conditions. We've also included many other useful tips on driving. 4- 2 4-3 4-6 4-6 4-9 4-1 1 4-1 1 4-13 4-14 4-27 Defensive Driving Drunken Driving Control of a Vehicle Braking Steering Off-Road Recovery Passing Loss of Control Your Vehicle Pickup Conversion to Chassis Cab Towing a Trailer 4-1 - 1998 GMC Sonoma | Owner's Manual - Page 158
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 - 1998 GMC Sonoma | Owner's Manual - Page 159
on each person and situation, here is some general information on the problem. The Blood Alcohol Concentration (BAC) of someone who is drinking depends upon four things: 0 The amount of alcohol consumed The drinker's body weight The amount of food that is consumed before and during drinking The - 1998 GMC Sonoma | Owner's Manual - Page 160
this means that a woman 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 U.S. states sets the level. There is a gender difference, too. Women generally have a lower relative percentage of body water than men. 4-4 - 1998 GMC Sonoma | Owner's Manual - Page 161
The body takes about that many people don't know. Medica1research shows that alcohol in a person's system can make crash injuries worse, especially injuries to the brain, spinal cord has been drinking. Ride home a cab; or if in you're with a group, designate a driver who will not drink. -- -- 4-5 - 1998 GMC Sonoma | Owner's Manual - Page 162
two 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 forceapplied. Sometimes, as when you're driving on snow or ice, it's easy to ask more of those control systems - 1998 GMC Sonoma | Owner's Manual - Page 163
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 - 1998 GMC Sonoma | Owner's Manual - Page 164
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. You can steer around the obstacle while braking hard. As you brake, your computer keeps - 1998 GMC Sonoma | Owner's Manual - Page 165
. On vehicles with four-wheel drive, your anti-lock brakes work at all times -- whether you are in two-wheel drive or four-wheel drive. Steering Tips It's important to take curves at a reasonable speed. A lot of the "driver lost control" accidentsmentioned on the news happen on curves. Here's why - 1998 GMC Sonoma | Owner's Manual - Page 166
that you should adjust your speed. Of course, the posted speeds are based on good weather and road conditions. Under less favorable conditions you'll want these either hand. But you have to act fast, steer quickly, and problems by braking -- if you can stopin time. But sometimes you can't; there isn - 1998 GMC Sonoma | Owner's Manual - Page 167
steering wheel to go straight down the roadway. Watch for traffic signs, pavement markings and lines. If you can see a sign up ahead that might indicate a turn or an intersection, delay yourpass. A broken center line usually indicates it's right to pass all (providing the road ahead is clear). Never - 1998 GMC Sonoma | Owner's Manual - Page 168
back again and wait for another opportunity. Check your mirrors, glance over your shoulder and a slowly moving vehicle too rapidly. Even though the brake lamps are not flashing, it may be slowing down little to the right. 0 0 If other cars are lined up to pass a slow vehicle, wait your turn. - 1998 GMC Sonoma | Owner's Manual - Page 169
. Remember: Any anti-lock brake system (ABS) helps avoid only the braking skid. Skidding In a skid, a driver can lose control of the vehicle. Defensive drivers avoid most skids by taking reasonable care suited to existing conditions,and by not "overdriving" those conditions. But skids are always - 1998 GMC Sonoma | Owner's Manual - Page 170
guide is for vehicles that have four-wheel drive. Also, see "Anti-Lock Brakes American road system behind. Traffic 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 - 1998 GMC Sonoma | Owner's Manual - Page 171
the cargo properly. Heavy loads on the roof raise the vehicle's likely to center of gravity, making it more roll over. You can be seriouslyor fatally the heat of the vehicle's exhaust system. 0 You'll find other importantinformation in this manual. See "Vehicle Loading," "Luggage Carrier" and - 1998 GMC Sonoma | Owner's Manual - Page 172
eyes, for example, need to constantly sweep the terrain for unexpected obstacles. Your ears need to listen for unusual tire or engine sounds. With your arms, hands, feet and body, you'll need to respond to vibrations and vehicle bounce. + CAU ION: When you're driving off-road, bouncing and quick - 1998 GMC Sonoma | Owner's Manual - Page 173
are some things to consider. Surfnce Conditions. Off-roading can take you over with one or two wheels, you can't control the vehicle as well or at all. sudden acceleration, sudden turns or sudden braking. In a way, off-road driving signs, posted speed limits or signal lights. You have to use your own - 1998 GMC Sonoma | Owner's Manual - Page 174
places? 0 Many hills are simply too steep for any vehicle. If will you drive up them, you stall. If you drive down them, you can't control your speed.you If will roll over.You could be drive across them, you seriously injured-orkilled. If you have any doubt about the steepness - 1998 GMC Sonoma | Owner's Manual - Page 175
Driving Uphill Once you decide you can safely drive up the hill, you need to take some special steps. 0 0 Ease up on your speed as you approach the top of the hill. Attach a flag to the vehicle to make you more visible to approaching traffic on trails or hills. Sound the horn as you approach the - 1998 GMC Sonoma | Owner's Manual - Page 176
shifting into NEUTRAL (N) (or depressing the clutch, if you have a manual transmission) to "rev-up'' the engine and regain forward momentum. This won't work. Your vehicle will roll backwards very quickly and you could go outof control. Instead, apply the regular brake to stop the vehicle. Then apply - 1998 GMC Sonoma | Owner's Manual - Page 177
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 This way, engine drag can help your brakes and they won't have to do all the work. Descend slowly, keeping your vehicle under control at all - 1998 GMC Sonoma | Owner's Manual - Page 178
because if you ignore them you could lose control and have a serious accident. It's much more transmission in NEUTRAL (N), or with the clutch pedal depressed in a manual shift. This is called "free-wheeling." Your brakes will have to do all the work and could overheat and fade. 0 If the engine - 1998 GMC Sonoma | Owner's Manual - Page 179
, Also, driving across an incline puts more weight on the downhill wheels. This could cause a downhill slide or a rollover. a Surface conditionscan be a problem when you drive Driving acrossan incline that's toosteep will make your vehicle roll over.You could be seriously injuredor killed. If you - 1998 GMC Sonoma | Owner's Manual - Page 180
Stalling on an Incline If your vehicle stalls when you're crossingan incline, be sure you (and your passengers) get out on the uphill side, even if the door there is harder to open. If you get out on the downhill side and the vehicle starts to roll over, you'll be right in its path. If you have to - 1998 GMC Sonoma | Owner's Manual - Page 181
the sand. This has an effect on steering, acceleratingand braking. You may want to reduce the air pressure in your tires slightly when driving on sand. This if you do get moving, poor steering and difficult braking can cause you to slide out of control. I A CAUTION: Driving on frozen lakes, ponds - 1998 GMC Sonoma | Owner's Manual - Page 182
Driving in Water Light rain causes no special off-road driving problems, But heavy rain can mean flash flooding, and flood waters demand extreme caution. Find out how deep the water is before you drive through it. If it's deep enough to cover your wheel hubs, axles or exhaust pipe, don't try it -- - 1998 GMC Sonoma | Owner's Manual - Page 183
. 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 - 1998 GMC Sonoma | Owner's Manual - Page 184
Adjust can light up lights dazzle and flash more than lighted objects. Just as your headlamps should be checked regularly for proper aim, so should your eyes be examined regularly. Some drivers suffer from night blindness -- the inability to see in dim light as much light to see - 1998 GMC Sonoma | Owner's Manual - Page 185
Driving in Rain and on Roads Wet Rain and wet roads can mean driving trouble. On a wet road, you can't stop, accelerate or turn as well because your tire-to-road traction isn't as good as on dry roads. And, - 1998 GMC Sonoma | Owner's Manual - Page 186
can cause accidents. They won't work as well in a quickstop and may cause pulling to one side.You could lose control the vehicle. of After driving through a large puddle of water or a car wash, apply your brake pedal lightly until your brakeswork normally. Driving too f i s t through large water - 1998 GMC Sonoma | Owner's Manual - Page 187
DeepStanding Water I 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. Neverdrive through water that slightly is you lower than the underbody your vehicle. If of can't avoid deep puddles or - 1998 GMC Sonoma | Owner's Manual - Page 188
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 t o move, check both ways for vehicles that have not cleared the intersection or may be running the red light. 0 0 One of the biggest problems - 1998 GMC Sonoma | Owner's Manual - Page 189
to blend smoothly with the traffic flow. Once you are on the freeway, adjust your speed to the posted limit or to the prevailing rate if it'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, - 1998 GMC Sonoma | Owner's Manual - Page 190
clean inside and outside? Wiper Blades: Are they in good shape? Fuel, Engine Oil, Other Fluids: Have you checked all levels? Lamps: Are they all working? Are the lenses clean? Tires: They are vitally important to a safe, trouble-free trip. Is the tread good enough for long-distance driving? Are the - 1998 GMC Sonoma | Owner's Manual - Page 191
, with a comfortably cool interior. Keep your eyes moving. Scan the road ahead and to the sides. Check your mirrors and your instruments frequently. If you get sleepy, pull off the road into a rest, service or parking area and take a nap, get some exercise, or both. For safety, treat drowsiness on - 1998 GMC Sonoma | Owner's Manual - Page 192
going down a hl. You could crash, Always have your engine running and your vehicle in gear when you go downhill. 0 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. Know how to go down - 1998 GMC Sonoma | Owner's Manual - Page 193
clothing, a small shovel, a flashlight, a cloth and red reflective warning triangles. And, if you will be driving under severe conditions, include small bag of sand, a a piece of old carpet or acouple of burlap bags to help provide traction. Be sureyou properly secure these items in your vehicle - 1998 GMC Sonoma | Owner's Manual - Page 194
condition -- smooth ice, packed, blowing or loose snow -- drive with caution. Accelerate gently. Try not to break the fragile traction. If you accelerate too fast, the drive wheels will spin and polish the surface under the tires even more. Your anti-lock brakes an anti-lock braking system, you'll - 1998 GMC Sonoma | Owner's Manual - Page 195
you've been stopped by the snow. 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. A If you are - 1998 GMC Sonoma | Owner's Manual - Page 196
especially any of that is blocking your exhaust pipe. And check around again from time to time to be sure snow battery charged. You will need a well-charged battery to restart the vehicle, and possibly for signaling later on with your headlamps. Let the heater run for awhile. Then, shut the engine - 1998 GMC Sonoma | Owner's Manual - Page 197
driver'sdoor on edge, above the door latch. The label shows the size of your original tiresand the inflation pressures needed to obtain the gross weight capacity front and rear axles, calledGross Axle A CAUTION: - In the caseof a sudden stop or collision, things carried in the bed your truck could - 1998 GMC Sonoma | Owner's Manual - Page 198
GAWR. If you do, parts on your break, or it can change way your vehicle the handles. These could cause to lose control. you Also, overloading can driving in this manual. See "Loading Your Vehicle for Off-Road Driving" in the Index. NOTICE: Your warranty does not cover parts or components that - 1998 GMC Sonoma | Owner's Manual - Page 199
the rear axle. See "Loading Your Vehicle" in the Index. Payload The payload capacity is shown on the CertificatiodTire label. This is the maximum load capacity that your vehicle can carry. Be sure to include the weight of the occupants as part of your load. If you added any accessories orequipment - 1998 GMC Sonoma | Owner's Manual - Page 200
seating position. The total cargo load must not be more than your vehicle's CWR. The recommended location for the cargo center of gravity for the Cargo Weight Rating (C) is the point where the mass of a body is concentrated and, if suspended at that point, would balance the front and rear. 4-44 - 1998 GMC Sonoma | Owner's Manual - Page 201
load on your axles. The load on the front and rear axles shouldn't be more than either of the GAWRs. The total of the axle loads should in camper, check the manufacturer's instructions. If you want more information on curb weights, cargo weights, cargoweight rating and the correct center of gravity - 1998 GMC Sonoma | Owner's Manual - Page 202
Chassis Cab General Motors is aware that some vehicle owners may consider having the pickup box removed and a commercial or recreational body installed drive properly, you can lose control when you pull a trailer. For example,if the trailer is too heavy, the brakes may not work well or even at all. - 1998 GMC Sonoma | Owner's Manual - Page 203
in costly repairs not covered by your warranty. To pull a trailer correctly, follow the advice in this part, and see your ask ahitch dealer about sway controls. Don't tow a trailerat all during the first 500 miles (800 km) your new vehicle is driven. Your engine, axle or otherparts could be damaged - 1998 GMC Sonoma | Owner's Manual - Page 204
your trailer can weigh, based upon your vehicle model and options. Vehicle 2WD 2.2L Engine 2WD "VORTEC" 4300, Auto. Trans. 2WD "VORTEC" 4300, Man. Trans. 4WD "VORTEC" 4300 Auto. Trans. 4WD "VORTEC" 4300 Man. Trans. Axle Ratio 3.73 4.10 3.08 3.42 3.08 Max. Trailer Wt. 2,000 lbs. (908 kg) 2,000 lbs - 1998 GMC Sonoma | Owner's Manual - Page 205
Maximum trailer weight is calculated assuming the driver and one passenger are the tow vehicle and it in has all the required trailering equipment. The weight of additional optional equipment, passengers cargo in and the tow vehicle must be subtractedfrom the maximum trailer weight. Two-wheel-drive - 1998 GMC Sonoma | Owner's Manual - Page 206
(1 589 kg), be sure touse a properly mounted, weight-distributing hitch and sway control of the proper size. This equipment is very important for proper vehicle loading and good handling when you're driving. If your vehicle has the bumper delete option, donot bolt any type of hitch to the close-out - 1998 GMC Sonoma | Owner's Manual - Page 207
your vehicle's master cylinder. Otherwise, both braking systems won't work well. You could even lose your brakes. Trailer Brakes If your trailer weighs more than 1,000 lbs.(450 kg) loaded, then it needs its own brakes -- and they must be adequate. Be sure to read and follow the instructions for the - 1998 GMC Sonoma | Owner's Manual - Page 208
chains, electrical connector, lamps, tires and mirror adjustment. If the trailer has electric brakes, start your vehicle and trailer moving and then apply the trailer brake controller by hand to be sure the brakes are working. This lets you check your electrical connection at the same time. During - 1998 GMC Sonoma | Owner's Manual - Page 209
When you tow a trailer, your vehicle has to have extra wiring and a heavy-duty turn signal flasher (included in the optional your signal when they are not. It's important to check occasionally tobe sure the trailer bulbs are still working. NOTICE: Making very sharp turns while trailering could - 1998 GMC Sonoma | Owner's Manual - Page 210
you might have to use your brakes so much that they would get hot and no longer work well. On a long uphill grade, shift down and reduce your speed to around 45 mph (70 km/h) to reduce the possibility of engine and transmission overheating. If you have an automatic transmission, you should use DRIVE - 1998 GMC Sonoma | Owner's Manual - Page 211
for more on this. Things that are especially important trailer in operation are automatic transmission fluid (don't overfill), engine oil,axle lubricant, belt, cooling system and brake adjustment. Each of these is covered in this manual, and the Index will help you find them quickly. If you're - 1998 GMC Sonoma | Owner's Manual - Page 212
@% NOTES 4-56 - 1998 GMC Sonoma | Owner's Manual - Page 213
theRoad Here you'll find what to do about some problems that can occur on the road. 5-2 5-2 5-3 5-8 5-12 Hazard Warning Flashers Other Warning Devices Jump Starting Towing Your Vehicle Engine Overheating 5-2 1 5-2 1 5-22 5-33 5-34 Engine Fan Noise If a Tire GoesFlat Changing a Flat Tire Compact - 1998 GMC Sonoma | Owner's Manual - Page 214
warn others. They also let police know you have a problem. Your front and rear turn signal lamps will flash onand off. When the hazara warning flashers are on, your turn signals won't work. The flasherswill stop if you step on the brake. Other Warning Devices If you carry reflective triangles, you - 1998 GMC Sonoma | Owner's Manual - Page 215
be covered your warranty. Trying to start your verhicle pushing or by pulling it won't work,and it could damage your vehicle. l: Batteries can you. 1. Check the other vehicle. It must have a 12-volt battery with a negative ground system. I NOTICE: If the other system isn't a 12-volt system with a - 1998 GMC Sonoma | Owner's Manual - Page 216
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 - 1998 GMC Sonoma | Owner's Manual - Page 217
5 . Check that the jumper cables don't have loose or missing insulation. If they and negative (-) will go to a 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 (+) cable - 1998 GMC Sonoma | Owner's Manual - Page 218
connect the black negative (-) cable to the good battery's negative (-) terminal. 9. Attach the cable at least 18 inches (45 cm) away from the dead battery, but not near engine parts that move. The electrical connection is just as good there, but the chance of sparks getting back to the battery is - 1998 GMC Sonoma | Owner's Manual - Page 219
. Keep your hands away from moving parts once the engineis running. + I - B . 12. Remove the cables in reverse order to prevent electrical shorting. Take care that they don't touch each other orany other metal. i u - C + @ A. Heavy Metal Engine Part B. Good Battery C. Dead Battery 5-7 - 1998 GMC Sonoma | Owner's Manual - Page 220
the transfer case, if you have one. If there was an accident, what was damaged. 0 0 0 When the towing servic,earrives, let the tow operator know that this manual contains these towing instructions. The operator may want to see them. To help avoid injury to or others: you 0 Never let passengers - 1998 GMC Sonoma | Owner's Manual - Page 221
a clamping device designed for towing service. Do not use the vehicle's steering column lock for this. The transmission should be in NEUTRAL (N) and the transfer case, if you have one, should be in 2HI. The parking brake should be released - 1998 GMC Sonoma | Owner's Manual - Page 222
Front Towing Tow Limits -- 35 mph (55 kmdh), 50 miles (80 km) Vehicles witlz.four-whee1drive with the electronic transfer case option must use a towing dolly under the rear wheels when towing from the front. NOTICE: Do not tow with sling-type equipment or fascia/fog lamp damage will occur. Use - 1998 GMC Sonoma | Owner's Manual - Page 223
NOTICE: Do not tow with sling-type equipmentor rear bumper valance damagewill occur. Use wheel-lift or car-carrier equipment. Additional ramping may be required for car-carrier equipment. Use safety chains and wheel straps. - 1998 GMC Sonoma | Owner's Manual - Page 224
Overheating You will find a coolant temperature gage on your vehicle's instrument panel. See "Gages" in the Index. If Steam Is Coming From Your Engine ' Steam from an overheated engine can burn you badly, even if you just open the hood. Stay away from the engine you see or hear steam coming if - 1998 GMC Sonoma | Owner's Manual - Page 225
steam, try this for a minute or so: 1. If you have an air conditioner, turn it off. If there's still no sign of steam, push the accelerator until the engine speed is about twice as fast as normal idle speed. Bring the engine speed back to normal idle speed after two or three minutes. Now - 1998 GMC Sonoma | Owner's Manual - Page 226
Recovery Tank If it isn't, you may have a leak inthe radiator hoses, heater hoses, radiator, water pump or somewhere else in the cooling system. B. Radiator Pressure Cap C. Engine Fan If the coolant inside the coolant recovery tank is boiling, don't do anything else until it coolsdown. 5-14 - 1998 GMC Sonoma | Owner's Manual - Page 227
engine if there is a leak. If you run the engine, it could all coolant. That could lose cause an engine fire, and could be burned. you Get any leak fixed before drive the vehicle. you I f you haven't found a problem needs service. Turn off the engine. Adding only plain water to your cooling system - 1998 GMC Sonoma | Owner's Manual - Page 228
the proper coolant mixture. I ' A CAUTION: You can be burnedif you spill coolant on hot engine parts. Coolant contains ethylene glycol and it will burn if the engine parts are hot enough. Don't spill coolant on a hot engine. When the coolant in the coolant recovery tank is at the ADD mark, start - 1998 GMC Sonoma | Owner's Manual - Page 229
if are under pressure, and 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 - 1998 GMC Sonoma | Owner's Manual - Page 230
How to Add Coolant to the Radiator 2. Then keep turning the pressure cap, but now push down a s 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 - 1998 GMC Sonoma | Owner's Manual - Page 231
proper DEX-COOL@ 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 - 1998 GMC Sonoma | Owner's Manual - Page 232
you can feel the upper radiator hose getting hot. Watch out for the engine cooling fan. 7. By this time, the coolant level inside the radiator base of the filler neck. 8. Then replace the pressure cap. At any time during this procedure if coolant begins to flow out of the filler neck, - 1998 GMC Sonoma | Owner's Manual - Page 233
Fan Noise This vehicle has a clutched engine cooling fan.When the clutch is engaged, the fan spins fasterto provide more air to cool the engine. In most everyday driving conditions the clutch is not engaged. This improves fuel economy and reduces fan noise. Under heavy vehicle loading, trailer - 1998 GMC Sonoma | Owner's Manual - Page 234
parking brake firmly. 2. Put anautomatic transmission shift lever in PARK (P) or shift a manual transmission to FIRST (1) or REVERSE (R). 3. l h r n off the engine. the plastic jack cover which is behind the front seats, either on the center of the wall (extended cab) or onthe passenger's side of - 1998 GMC Sonoma | Owner's Manual - Page 235
the vehicle is supported by a jack. Always tighten the tire fully against the undersideof the vehicle when storing it. Insert the chisel end of the wheel wrench, on an angle, intothe hole in the rear bumper. This is the jack cover for the extended cab. Thecover for the regular cab is similar. To - 1998 GMC Sonoma | Owner's Manual - Page 236
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. 5-24 - 1998 GMC Sonoma | Owner's Manual - Page 237
won't fit these imitation nuts, so don't try to remove them with the socket endof the wheel wrench. If you have individual wheel nut caps that cover each nut, they must be removed in order to get tothe wheel nuts. Use the socketend of the wheel wrench to remove the wheel nut - 1998 GMC Sonoma | Owner's Manual - Page 238
Xemoving the Flat Tire and Installing the Spare Tire ..., . . A. Front Frame Hole B. Rear Frame Hole (ZR2j 1. Using the wheel wrench, loosen all the wheel nuts. Don't remove them yet. C. Spring Hanger Hole (Standard Pickups) 2. Turn the jack handle to the right slightly to raise the jack lift - 1998 GMC Sonoma | Owner's Manual - Page 239
itis jacked upis off dangerous. If the vehicle slips the jack,you could be badly injured or killed. Never get under a vehicle when it is supported only by a jack. I Raising your vehicle with the jack improperly I positioned can damage the vehicle and even make the vehicle fall. To help avoid - 1998 GMC Sonoma | Owner's Manual - Page 240
hand until the wheel is held against the hub. If a nut can't be turned by hand, use the wheel wrench and see your dealer as soon as possible. A CAUTl IN: L Rust or dirt on the wheel, or on the partsto which it is fastened, can make the wheel nuts become loose - 1998 GMC Sonoma | Owner's Manual - Page 241
10. Use the wrench to tighten the wheel nuts firmly in a crisscross sequence as shown. A CAUTION: 9. Lower the vehicle by turning the jack handle to the left. Lower the jack completely. Incorrect wheel nuts or improperly tightened wheel nuts can cause the wheel to become loose and even come off. - 1998 GMC Sonoma | Owner's Manual - Page 242
I NOTICE: Improperly tightenedwheel nuts can lead to To brake pulsation and rotor damage. avoid expensive brake repairs,evenly tighten thewheel nuts in the proper sequence and to the proper torque specification. an a aluminum wheel or itcould damage thewheel. Secure the tire in the pickup bed. 5-30 - 1998 GMC Sonoma | Owner's Manual - Page 243
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 to the right until the tire is raised against the underside of the vehicle. E ' c F. Valve Stem - 1998 GMC Sonoma | Owner's Manual - Page 244
place tag behind the bracket after the tools are installed.) D. Bolt Location (Standard) E. Bolt Location (ZR2) E Wheel Blocks A. Hub Cap Removal Tool (Some Models) B. Cover (Extended Cab) C. Cover (Standard Cab) G. H. I. J. Nut Rubber Band Jack Position (ZR2) Jack Position (Standard) D. Hub - 1998 GMC Sonoma | Owner's Manual - Page 245
air after a time. Check the inflation pressure regularly. It should be 60 psi (420 kPa). After installing the compact spare on your vehicle, you should stop as soon , don't take your vehicle through an car wash with guide rails. The compact spare can get caught the on rails. That can damage - 1998 GMC Sonoma | Owner's Manual - Page 246
parts your of vehicle as well as the tires.If you spin the wheels too fastwhile shiftingyour transmission back and forth, you can destroy your transmission. be injured. And, the transmission other partsof the or vehicle can overheat. That could cause an engine compartment fireor other damage. When - 1998 GMC Sonoma | Owner's Manual - Page 247
FIRST (1) or SECOND (2) and REVERSE (R)), spinning the wheels as little as possible. Release the accelerator pedal while you shift, and press lightly on the accelerator pedal when the transmission is in gear. If that doesn't get you out after a few tries, you may need to be towed out. Or, you can - 1998 GMC Sonoma | Owner's Manual - Page 248
NOTICE: Never use the recovery hooks tow the vehicle. to Your vehicle could be damaged and it would not be covered by warranty. A CAUTION: The recovery hooks, when used, are under a of lot force. Always pull the vehicle straight out. Never pull on the hooksat a sideways - 1998 GMC Sonoma | Owner's Manual - Page 249
fi NOTES 5-37 - 1998 GMC Sonoma | Owner's Manual - Page 250
fi NOTES 5-3s - 1998 GMC Sonoma | Owner's Manual - Page 251
Countries Filling Your Tank Filling a Portable Fuel Container Checking Things Under the Hood Engine Oil Air Cleaner Automatic Transmission Fluid Manual Transmission Fluid Hydraulic Clutch Rear Axle Four- Wheel Drive Engine Coolant Radiator Pressure Cap Thermostat Power Steering Fluid 6-29 6-30 6-34 - 1998 GMC Sonoma | Owner's Manual - Page 252
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 - 1998 GMC Sonoma | Owner's Manual - Page 253
try to do service work on a vehicle without knowing enough about it. 0 Be sure you have sufficient knowledge, experience, the proper replacement parts and tools before engine protection. Gasolines meeting the AAMA specification could provide improved driveability and emission control system - 1998 GMC Sonoma | Owner's Manual - Page 254
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 - 1998 GMC Sonoma | Owner's Manual - Page 255
repairs caused by use of improper fuel wouldn't be covered by your warranty. Filling Your Tank To check on fuel availability, ask an auto club, or contact a major oil company that does business Drive Oshawa, Ontario LlH 8P7 The fuel cap isbehind a hinged door on the driver's side of your vehicle. - 1998 GMC Sonoma | Owner's Manual - Page 256
full, and is more likely in hot weather. Open the fuel filler cap slowly and wait for any''hiss'' noise to stop. Then unscrew the cap all the way. Be careful not to spill gasoline. Clean gasoline from painted surfaces as soon as possible. See "Cleaning the Outside of Your Vehicle" in the Index - 1998 GMC Sonoma | Owner's Manual - Page 257
a Portable Fuel Container NOTICE: If you need a new cap, be sure to get the right type. Your dealer cause your malfunction indicator lamp to light and your fuel tank and emissions system may be damaged. See " a vehicle, in a vehicle's trunk, pickup bed or on any surface other than the ground. - 1998 GMC Sonoma | Owner's Manual - Page 258
Checking Things Under the Hood Then go to the front of the vehicle and release the secondary hood release. . Lift the hood, release the hood prop from its retainer and put the hood prop into the slot in the hood. You may have a lamp that comes on when you lift the hood. 6-8 - 1998 GMC Sonoma | Owner's Manual - Page 259
When you lift the hood, you'll see these items on the 2.2L engine: A. Battery B. Coolant Recovery Tank C. Automatic Transmission Dipstick D. Engine Oil Fill Cap and Dipstick E. Power Steering Reservoir E Brake Master Cylinder G. Air Cleaner H. Fuse Block 1. Windshield Washer Fluid 6-9 - 1998 GMC Sonoma | Owner's Manual - Page 260
When you lift the hood, you'll see these items on the "VORTEC" 4300 engine: A. B. C. D. Battery Coolant Recovery Tank Engine Oil Dipstick Engine Oil Fill E. Transmission Dipstick E Power Steering Reservoir G. Brake Master Cylinder H. Air Cleaner I. Fuse Block J. Windshield Washer Fluid - 1998 GMC Sonoma | Owner's Manual - Page 261
. The oil dipstick on the 2.2L engine is under the fill cap. Turn off the engine and give the oil a few minutes to drain back into the oil pan. If you don't, the oil dipstick might not show the actual level. Engine Oil It's a good idea to check your engine oil every time you get fuel - 1998 GMC Sonoma | Owner's Manual - Page 262
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 what kind of oil to use. For - 1998 GMC Sonoma | Owner's Manual - Page 263
change your own oil, be sure you use oil that has the Starburst symbol on the front of the oil container. ~. RECOMMENDED SAE VlSCOSlTV GRADE ENGINE OILS SELECT THEiOWEST SA€ VISCOSITY GRADE OIL FOR THE EXPECTED TEMPERATURE RANGE... HOT WEATHER LOOK FOR MIS SYMBOL If you have your oil changed for - 1998 GMC Sonoma | Owner's Manual - Page 264
20W-50. Engine Oil Additives Don't to Change Engine Oil If Engines "Starburst" symbol. Failure to use the recommended oil can result inengine damage not covered for your engine at extremely service, police, taxi or other commercial application. Driving under these conditions causes engine - 1998 GMC Sonoma | Owner's Manual - Page 265
, 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 forhelp. Remote Oil Filter (Four-wheel Drive) The access - 1998 GMC Sonoma | Owner's Manual - Page 266
Air Cleaner 2.2L Engine "VORTEC" 4300 Engine To remove this air cleaner, remove the wing nuts that hold the cover on. Remove the cover andlift out the air filter. Insert a new air filter, then replace the air cleaner cover. Tighten the wing nuts to hold the cover in place. Refer to the Maintenance - 1998 GMC Sonoma | Owner's Manual - Page 267
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. Operating the engine with the cleaner off can - 1998 GMC Sonoma | Owner's Manual - Page 268
all the instructions here, or you could get a false reading on the dipstick. to 93°C). See "Checking Transmission Fluid Hot" i n the Index. I NOTICE: Too much or too little fluid can damage your transmission. Too much can mean that some of the fluid could come and fall onhot engine out parts or - 1998 GMC Sonoma | Owner's Manual - Page 269
Let the enginerun at idle for three minutes or more. Then, without shutting off the engine, follow these steps: 1. Flip the handle up and-then pull out the dipstickand wipe it with a clean rag orpaper towel. 3. Check both sides of the dipstick, and read the lower level. The fluid level must be - 1998 GMC Sonoma | Owner's Manual - Page 270
the instructions here, or you could get a false reading. I NOTICE: Too much or too little fluid can damage your transmission. Too much can mean that some of the fluid couldcome out and fall on hot engine a parts or exhaust system parts, starting fire. Be sure to get an accurate reading check your - 1998 GMC Sonoma | Owner's Manual - Page 271
the pedal is normal. It isn't a good idea to *'topoff' 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 - 1998 GMC Sonoma | Owner's Manual - Page 272
it. See "Scheduled Maintenance Services" in the Index. Refer to the Maintenance Schedule, Owner Checks and Services, to determine how often you should check the fluid level in your clutch master cylinder reservoir and for the proper fluid. See"Owner Checks and Services" and "Recommended Fluids and - 1998 GMC Sonoma | Owner's Manual - Page 273
Schedule to determine what kind of lubricant to use. See "Recommended Fluids and Lubricants" in the Index. Four- Wheel Drive Most lubricant checks in this section also apply to four-wheel-drive vehicles. However, they have two additional systemsthat need lubrication. Transfer Case When to - 1998 GMC Sonoma | Owner's Manual - Page 274
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 - 1998 GMC Sonoma | Owner's Manual - Page 275
engine temperature. Let the warning lights and gages work as they should. Engine Coolant The cooling s stem in your vehicle is filled with DEX-COOL J engine explainsyour cooling system and how to add coolant when it is low. I f you have a problem with engine overheating, see "Engine Overheating" i - 1998 GMC Sonoma | Owner's Manual - Page 276
damaged. The repair cost wouldn't be covered your by 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. I Adding only plain water to your - 1998 GMC Sonoma | Owner's Manual - Page 277
Checking Coolant Turning the radiator pressure cap when the engine and radiator are hot can allow steam and you badly. scalding liquids to blow out and burn With the coolant recovery tank, will almost you never have to add coolant at the radiator. Never turn the radiator pressure cap even a little - 1998 GMC Sonoma | Owner's Manual - Page 278
Radiator Pressure Cap Thermostat Engine coolant temperature 1s controlled by a thermostat i n the engine coolant system. The thermostat stops pressure-type cap and must be tightly installed to prevent coolant loss and possible engine damage on from overheating. Be sure the arrows the cap line up - 1998 GMC Sonoma | Owner's Manual - Page 279
protection against freezing. 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 - 1998 GMC Sonoma | Owner's Manual - Page 280
it is if completely full. 0 Don't use engine coolant (antifreeze) in your windshield washer. can damage It your washer system and paint. Your brake master cylinder reservoir is here. It is filled with DOT-3 brake fluid. There are only two reasons why the brake fluid level in the reservoir might go - 1998 GMC Sonoma | Owner's Manual - Page 281
sooner or later your brakes won't work well,or won't work at all. Checking Brake Fluid You can check the brake fluid without taking off the cap. So, it isn't a good idea to "top off' your brake fluid. Adding brake fluid won't correct a leak.If you add fluid when your linings are worn, then you - 1998 GMC Sonoma | Owner's Manual - Page 282
brakes may not work or they well, may noteven work a t all. This could cause a crash. Always use the proper brake fluid. Using the wrong fluid can badly damage brake system parts. For example, justfew a drops of mineral-based oil, such as engine oil, in your brake system can damage brake system - 1998 GMC Sonoma | Owner's Manual - Page 283
or changing. When you have the front brake pads replaced, have the rear brakes inspected, too. Brake linings shouldalways be replaced as complete axle sets. See "Brake System Inspection" in Section 7 of this manual under Part C "Periodic Maintenance Inspections." NOTICE: Continuing to drive - 1998 GMC Sonoma | Owner's Manual - Page 284
for 25 days or more, remove the black, negative (-) cable from the battery. This will help keep your battery from running down. Replacing BrakeSystem Parts The braking system on a modern vehicle is complex. Its many parts have to be of top quality and work well together if the vehicle is to have - 1998 GMC Sonoma | Owner's Manual - Page 285
, contactyour GM dealer's service department. Halogen Bulbs A CAUTION: Halogen bulbs have pressurized gas inside and can burst if you drop or scratch the bulb. You or others could be injured.Be sure to read and follow the instructions on the bulb package. 2. Remove the black retainer clips by - 1998 GMC Sonoma | Owner's Manual - Page 286
Two-Piece Composite Headlamp System 1. Open the hood. F 5. Turn the bulb assembly to the left to lens assembly back into the vehicle. Install the two retaining clips. 2. Remove the black retainer clips by lifting up. 3. Pull the headlamp lens assembly out. 4. Unplug the electrical connector. 6- - 1998 GMC Sonoma | Owner's Manual - Page 287
One-Piece Front lbrn Signal Lamp Assembly 1. Remove the headlamp assembly as shown under "One-Piece Composite Headlamp System" earlier in this section. 2. Twist the bulb socket to remove it from the headlamp assembly. 5. Turn the bulb assembly to the left to remove it. 6. - 1998 GMC Sonoma | Owner's Manual - Page 288
the headlamp assembly as shown under "Two-Piece Composite Headlamp System" earlier in this section. 2. Locate the locking tabs on of the assembly out while holding the tabs. The assembly will swing out. 4. Turn the harness bulb socket to the left to remove it. 5. Push the new bulb into the socket - 1998 GMC Sonoma | Owner's Manual - Page 289
'the lens retaining screws. 2. Remove the lens. If equipment such as a cap or camper is installed on your vehicle. a center high-mounted stoplanlp feed wire is provided along the driver's side rear frame. This wire should be used to install a center high-mounted stoplamp in the cap or camper. 6-39 - 1998 GMC Sonoma | Owner's Manual - Page 290
Open the tailgate. Windshield Wiper Blade Replacement 2. Remove the screws from the lamp assembly near the tailgate latch. See "Normal Maintenance Replacement Parts" in the Index for the proper type of replacement blade. I NOTICE: Use care when removing installing a blade or assembly. Accidental - 1998 GMC Sonoma | Owner's Manual - Page 291
end last, into the end with two blade claws (A). Slide the insert all the way through the blade claws at the opposite end (B). The plastic caps (C) will be forced off as the insert is fully inserted. - 1998 GMC Sonoma | Owner's Manual - Page 292
new vehicle comes with high-quality tires made by a leading tire manufacturer. If you ever have questions about your tire warranty and where to obtain service, see your GM Warranty booklet for details. C - 1998 GMC Sonoma | Owner's Manual - Page 293
of too much friction. You could have an air-out and a serious accident. See "Loading Your Vehicle'' in the Index. Underinflated tirespose the same danger as overloaded tires. The resulting accident all could cause serious injury. Check tires frequently to maintain the recommended pressure. Tire - 1998 GMC Sonoma | Owner's Manual - Page 294
wear, rotate your tires as soon as possible and check wheel alignment. Also check for damaged tires or wheels. See Services" in the Index for scheduled rotation intervals. If you have a compact spare tire, it should be at 60 psi (420 Wa). How to Check Use a good quality pocket-type gage to check - 1998 GMC Sonoma | Owner's Manual - Page 295
adjust the front and rear inflation pressures as shown on the Certification/Tire label. Make certain that all wheel nuts are properly tightened. See "Wheel Nut Torque" in the Index. I A CAUTION: Rust or dirt on wheel, or on the parts you sure to use a scraper or wire brush later, need to, to get - 1998 GMC Sonoma | Owner's Manual - Page 296
time for new tires is to check the treadwear indicators, which will appear rating, traction, ride and other things during normal service on your vehicle. If your tires have an all having a TPC Spec number, make sure they are the same size, load range, speed rating and construction type (bias, bias- - 1998 GMC Sonoma | Owner's Manual - Page 297
control while driving. If you mix tires of different sizes o r types (radial and bias-belted tires), the vehicle may not handle properly, andyou could have a crash. Using tires of different sizes Uniform Tire Quality Grading system does not apply to Motors passenger cars and light trucks may vary - 1998 GMC Sonoma | Owner's Manual - Page 298
habits, service practices and differences in road characteristics and climate. Temperature -- A, B, C The temperature grades are A (the highest),B, and C, representing the tire's resistance to the generation of heat and its ability to dissipate heat when tested under controlled conditions on - 1998 GMC Sonoma | Owner's Manual - Page 299
equipment parts. conditions exist. Your dealer will know the kind of wheel you need. A CAUTICY: Using the wrong replacement wheels, wheel bolts or wheel nutson your vehicle can be dangerous. It could affect the braking handling of your and vehicle, make your tires lose air and make you lose control - 1998 GMC Sonoma | Owner's Manual - Page 300
problems with bearing life, brake cooling, speedometer or odometer calibration, headlamp aim, bumper height, vehicleground clearance and tireor tire chain clearance to the body your vehicle and tire size combination and road conditions. Followthat manufacturer's instructions. To help avoiddamage to - 1998 GMC Sonoma | Owner's Manual - Page 301
or get them on a hot part of the vehicle. Some are size for your tires. Install them the drive axle on tires (four-wheel-drive vehicles can chains on use both axles) and tighten them as tightly as possible with the ends securely fastened. Drive slowly and follow the chain manufacturer's instructions - 1998 GMC Sonoma | Owner's Manual - Page 302
Fabric and carpet. They will clean normal spots and stains very well. You can get GM-approved cleaning products from your dealer. (See "Appearance Care and Materials" in the Index.) Here are some cleaning tips: Always read the instructions on the cleaner label. Clean up stains as soon as you - 1998 GMC Sonoma | Owner's Manual - Page 303
lines. Special Fabric Cleaning Problems Stains caused by such things as catsup, coffee (black), remains, follow the multi-purpose interior cleaner instructions described earlier. 3. I f an odor to 1 cup (250 ml) of lukewarm water. 5. As soon as you've cleaned the section, use a sponge to remove - 1998 GMC Sonoma | Owner's Manual - Page 304
you still need to clean your upholstery and carpet often to keep it looking new. Further leather should be cleaned immediately. If dirt is allowed to work into the finish, it can harm the leather. Rub through the windshield under certain conditions. Cleaning Interior Plastic Components Use - 1998 GMC Sonoma | Owner's Manual - Page 305
their performance. Clean the blade by wiping vigorously with a cloth soaked in full-strength windshield washer solvent. Then rinse the blade with water. Check the wiper blades and clean them as necessary; replace blades that look worn. Cleaning Glass Surfaces Glass should be cleaned often. GM Glass - 1998 GMC Sonoma | Owner's Manual - Page 306
See "Recommended Fluids and Lubricants" in the Tndex.) Cleaning the Outsideof Your Vehicle The paint finish on your vehicle provides beauty, depth of color, gloss retention and durability. detergent) soap toclean exterior lamps and lenses. Follow instructions under "Washing Your Vehicle." 6-56 - 1998 GMC Sonoma | Owner's Manual - Page 307
the paint finish looking new by keeping your vehicle garaged or covered whenever possible automatic car wash that has silicon carbide tire cleaning brushes. These brushes can also damage the surface of these wheels. I NOTICE: Machine compounding or aggressive polishing on a basecoatklearcoat paint - 1998 GMC Sonoma | Owner's Manual - Page 308
metal repair or replacement, make sure the body repair shop applies anti-corrosion material to the parts repaired or replaced to restore corrosion protection. NOTICE from your dealer orother service outlets. Larger areas of finish damage can be corrected in your dealer's body and paint shop. 6-58 - 1998 GMC Sonoma | Owner's Manual - Page 309
control can collect on the underbody. If these are not removed, accelerated corrosion (rust) can occur on the underbody parts such as fuel lines, frame, floor pan and exhaust system sold by General Motors. Bodies, body conversions or equipment not made or sold by General Motors are not covered. 6-59 - 1998 GMC Sonoma | Owner's Manual - Page 310
on chrome, stainless steel, nickel, copperand brass 16 oz. (0.473 L) Removes soil and black marks from whitewalls 16 02. (0.473 L) White Sidewall Tire Cleaner Cleans vinyl tops, upholstery and convertible tops Vinyl Cleaner 32 oz. (0.946 L) Removes dirt, grime, smoke and fingerprints Glass Cleaner - 1998 GMC Sonoma | Owner's Manual - Page 311
the windshield from outside your vehicle. The VIN also appears on the Vehicle Certification and Service Parts labels and the certificates of title and registration. your VIN, the model designation, paint information and a list of all production options and special equipment. Be sure that this label - 1998 GMC Sonoma | Owner's Manual - Page 312
other power accessories. When the current load is too heavy, the circuit breaker opens and closes, protecting the circuit until the problem is fixed or goes away. Your vehicle has an air bag system. Before attempting to add anything electrical to your vehicle, see "Servicing Your Air Bag-Equipped - 1998 GMC Sonoma | Owner's Manual - Page 313
you replace a bad fuse with a new one of the identical size and rating. If you ever have a problem on the road and don't have a spare fuse, you Replace it as soon as you can. Instrument Panel Fuse Block The fuse block is atthe driver's end of the instrument panel. Remove the cover by turning the - 1998 GMC Sonoma | Owner's Manual - Page 314
Cruise Control, Body Controls TBC, Heated Seats, Cruise Module, Cruise Switch Gages, Body Controls TBC, Instrument Panel Cluster, Used Not Used Headlamp Switch, Body Controls TBC, Headlamp Relay HVAC Control Head Turn Signal Instrument Panel Cluster, Engine Controls Parking Lamps, Power Window - 1998 GMC Sonoma | Owner's Manual - Page 315
Auxiliary Power Power Locks 4WD Switch, Engine Control (VCM, PCM, Transmission) Supplemental Inflatable Restraint, SDM Module Front Wiper Not Used Radio Battery Not Used HVAC I, HVAC Control Head, HVAC Devices Anti-Lock Brakes Rear Wiper Radio, Ignition Engine Compartment FuseBlock 17 18 19 20 - 1998 GMC Sonoma | Owner's Manual - Page 316
Pump, Module, Oil Pressure Anti-Lock Brake System Engine ControlModule Injectors Horn Brake-Transmission Shift Interlock Name TRL TRN TRR TRN TRL B/U VEH B/U RT TURN Usage Trailer LeftTurn Trailer RightTurn Trailer Back-up Lamps Vehicle Back-up Lamps Right Turn Signal Front ECM B ABS ECM 1 HORN - 1998 GMC Sonoma | Owner's Manual - Page 317
Name BIU LP A/C RAP 0 2 Usage Back-up Lamps Air Conditioning Retained Accessory Power Oxygen Sensor Column Feed, IGN 2 , 3 , 4 Daytime Running Lamps Fog Lamps Starting and Charging IGN 1 Accessory Feeds, Electric Brake Parking Lamps Left Rear Parking Lamps Starter Solenoid,Fuel Pump, PRNDL Name - 1998 GMC Sonoma | Owner's Manual - Page 318
High-Beam Tail and Stoplamps Front Sidemarker Lamps Front Turn Signal Lamps Center High-Mounted Stoplamp Quantity 2 2 Number 9006 HB4 9005 HB3 3057 194 3 157NA 2 2 2 2 577 Capacities and Specifications Engine Type VIN Code Firing Order Horsepower (T Series) Horsepower (S Series) Thermostat - 1998 GMC Sonoma | Owner's Manual - Page 319
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 truck dealer. Engine Thermostat Oil Filter Air Cleaner Filter PCV Valve Automatic Transmission Filter Kit Spark Plugs Fuel - 1998 GMC Sonoma | Owner's Manual - Page 320
"VORTEC" 4300 "VORTEC" 4300 Crankcase Capacity* Engine 2.2L "VORTEC" 4300 Differential Fluid Quantity withFilter 4.5 quarts (4.3 L) 4.5 quarts (4.3 L) Axle Rear Front Quantity 4.0 pints (1.9 L) 2.6 pints (1.2 L) Automatic Transmission Capacity" VPe 4L60E Quantity (Drain and Refill) (4.7quarts - 1998 GMC Sonoma | Owner's Manual - Page 321
Air Conditioning Refrigerants Not all air conditioning refrigerants are same. the If the air conditioning system in your vehicle needs refrigerant, be sure the proper refrigerant is used. If you're not sure, ask y o ~ dealer. ~r Vehicle Dimensions* Wheelbase Front Tread S Series - 1998 GMC Sonoma | Owner's Manual - Page 322
b NOTES - 1998 GMC Sonoma | Owner's Manual - Page 323
Section 7 MaintenanceSchedule This section covers the maintenance required for your vehicle. Your vehicle needs these services to retain its safety, dependability and emission control performance. 7-2 7 -4 7-5 7-5 7-6 7-7 Introduction Part A: Scheduled Maintenance Services Short Trip/City Definition - 1998 GMC Sonoma | Owner's Manual - Page 324
vehicle maintenance not only helps to keep your vehicle in good working condition, but also helps the environment. All recommended maintenance procedures are important. Improper vehicle maintenance can even affect the quality of the air we breathe. Improper fluid levels or the wrong tire inflation - 1998 GMC Sonoma | Owner's Manual - Page 325
your dealer's servicedepartment or anotherqualified 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" explains - 1998 GMC Sonoma | Owner's Manual - Page 326
in good condition, seeyour dealer. This part tells you the maintenance services you should have done and when you should schedule them. If you go to your dealer foryour service needs, you'll know that GM-trained and supported service people will perform the work using genuine GM parts. The proper - 1998 GMC Sonoma | Owner's Manual - Page 327
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. Follow the Short Trip - 1998 GMC Sonoma | Owner's Manual - Page 328
Wire Inspection. Spark Plug Replacement. 4.3L Engine Only: Positive Crankcase Ventilation (PCV) Valve Inspection. Vvery 150,000 Miles (240 000 km): Cooling System Service these conditions. Driving a vehicle with a fully warmed engine under i highway conditions causesengine o l to break down slower. - 1998 GMC Sonoma | Owner's Manual - Page 329
Rotation. Every 15,000 Miles (25 000 km): Automatic Transmission Service (severe conditions only). Every 30,000 Miles (50 000 km): Fuel Filter Replacement. Air Cleaner FilterReplacement. Front Wheel Bearing Repack (2WD only) (or at each brake relining, whichever occurs first). Every 50,000 Miles - 1998 GMC Sonoma | Owner's Manual - Page 330
that all recommended maintenance services be performed at the indicated intervals and the maintenance be recorded. # Lubricate the front suspension, ball joints, steering 0 Locking Differential -- Drain fluid and refill at first engine oil change. At subsequent oil changes, check fluid level and - 1998 GMC Sonoma | Owner's Manual - Page 331
fluidlevel and add fluid as needed. Check constant velocity joints and axle seals for leaking. (See footnote **.) I 6,000 Miles (I 0 000 km) 0 Change engine oil and filter (or every3 months, whichever occurs first). An Emission Control Service. 0 Lubricate chassis components (or every 3 months - 1998 GMC Sonoma | Owner's Manual - Page 332
level and add fluid as needed. Check constant velocity joints and axle seals for leaking. (See footnote 'i'*.) I 12,000 Miles (20 000 km) I7 Change engine oil and filter (or every 3 months, whichever occurs first). An Emission Control Service. [7 Lubricate chassis components (or every 3 months - 1998 GMC Sonoma | Owner's Manual - Page 333
add fluid as needed. Check constant velocity joints and axle seals for leaking. (See footnote **.) 0 For Two-Wheel-Drive vehicles only: Clean and repack the front wheel bearings (or at each brake relining, whichever occurs first). 0 Change automatic transmission fluid and filter if the vehicle is - 1998 GMC Sonoma | Owner's Manual - Page 334
Change engine oil and filter (or every 3 months, whichever occurs first). An Emission Control Service. 0 Lubricate chassis components (or every 3 months, whichever occurs first). (See footnote #.) Check readfront axle fluidlevel and add fluid as needed. Check constant velocity joints and axle seals - 1998 GMC Sonoma | Owner's Manual - Page 335
0 Check readfront axle fluid level and add fluid as needed. Check constant velocity joints and axle seals forleaking. (See footnote **.) 30,000 Miles (50 000 km) 0 Change engine oil and filter (or every 3 months, whichever occurs first). An Emission Control Service. DATE ACTUAL MILEAGE I SERVICED - 1998 GMC Sonoma | Owner's Manual - Page 336
at each brake relining, whichever occurs first). Replace fuel filter. An EIn.ission Control Service. (See footnote?. j Replace air cleaner filter. An Emission Control Service. Change automatic transmission fluid and filter if the vehicle is mainly driven under one or more of these conditions: - In - 1998 GMC Sonoma | Owner's Manual - Page 337
add fluid as needed. Check constant velocity joints and axle seals for leaking. (See footnote **.) I ACTUAL MILEAGE I SERVICED B Y 36,000 Miles (60 000 km) 0 Change engine oil and filter (or every 3 months, whichever occurs first). An Emission Control Service. Lubricate chassis components (or - 1998 GMC Sonoma | Owner's Manual - Page 338
level and add fluid as needed. Check constant velocity joints and axle seals for leaking. (See footnotea*,) 42,000 Miles (70 000 km) 0 Change engine oil and filter (or every 3 months, whichever occurs first). An Emission Control Service. 0 Lubricate chassis components (or every 3 months, whichever - 1998 GMC Sonoma | Owner's Manual - Page 339
andfilter every 50,000 miles (83 000 kin). 0 Inspect air cleaner filterif you are driving in dusty conditions. Replace filter if necessary. An Emission Control Service. (See footnote-I.) 48,000 Miles (80 000 km) 0 Change engine oil and filter (or every 3 months, whichever occurs first). An Emission - 1998 GMC Sonoma | Owner's Manual - Page 340
severe service conditions 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 I ACTUAL MILEAGE I SERVICEDBY: I I I 51,000 Miles (85 000 km) Change engine oil and filter (or - 1998 GMC Sonoma | Owner's Manual - Page 341
fluid level and add fluid as needed. Check constant velocity joints and axle seals for leaking. (See footnote *4:.) 60,000 Miles (IO0 000 km) 0 Change engine oil and filter (or every 3 months, whichever occurs first). An Emission Control Service. 17 Lubricate chassis components (or every 3 months - 1998 GMC Sonoma | Owner's Manual - Page 342
Inspect engine accessory drive belt. An E~nissiorz Control Service. Replace fuel filter. An Emission Control Service. (See footnote?.) Replace air cleaner filter. An Emission Control Service. Inspect fuel tank, cap and lines for damage or leaks. Inspect fuel cap gasket for any damage. Replace parts - 1998 GMC Sonoma | Owner's Manual - Page 343
fluid level and add fluid as needed. Check constant velocity joints and axle seals for leaking. (See footnote**.) 66,000 Miles (110 000 km) 0 Change engine oil and filter (or every 3 months, whichever occurs first). AI?Emissior? Control Service. 0 Lubricate chassis compone.nts (or every 3 months - 1998 GMC Sonoma | Owner's Manual - Page 344
every 3 months, whichever occurs first). (See footnote #.) Check readfront axle fluid leveland add fluid as needed. Check constant velocity joints and axle seals for leaking. footnote **.) (See 72,000 Miles (120 000 km) 0 Change engine oil and filter (or every 3 months, whichever occurs first). An - 1998 GMC Sonoma | Owner's Manual - Page 345
in dusty conditions. Replace filter if necessary. An Emission Control Service. (See footnote?.) 0 Check readfront axle fluid level and add fluid as needed. Check constant velocity joints and axle seals forleaking. (See footnote **.) 78,000 Miles (130 000 knz) 0 Change engine oil and filter (or - 1998 GMC Sonoma | Owner's Manual - Page 346
. (See footnote +.) 0 Check rear/f.ront axle fluid level add fluid as needed. Check constant and 81,000 Miles (135 000 km) n Change engine oil and filter (or everymonths, whichever occurs first). 3 I DATE ACTUAL MILEAGE SERVICED B Y An Ewission Control Service. 0 Lubricate chassis components - 1998 GMC Sonoma | Owner's Manual - Page 347
and add fluid as needed. Check constant **.> velocity joints and axle seals for leaking. (See footnote DATE MILEAGE 1 90,000 Miles (I50 000 km) 0 Change engine oil and filter (or every3 months, whichever occurs first). An Emission Control Service. 0 Lubricate chassiscomponents (or every 3 months - 1998 GMC Sonoma | Owner's Manual - Page 348
Change engine oil and filter (or every 3 months, whichever occurs first). An Emission Control Service. 0 Lubricate chassis components (or every 3 months, whichever occurs first). (See footnote #.) Check readfront axle fluid level and add fluid as needed. Check constant velocity joints and axle seals - 1998 GMC Sonoma | Owner's Manual - Page 349
Change engine oil and filter (or every 3 months, whichever occurs first). An Emission Control Service. Lubricate chassis components (or every 3 months, whichever occurs first). (See footnote#.) 0 Check readfront axle fluid level and add fluid as needed. Check constant velocity joints and axle seals - 1998 GMC Sonoma | Owner's Manual - Page 350
plugs. An Emission Control Service. 0 If you haven't used your vehicle under severe service conditions listed 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 Engine Only: Inspect - 1998 GMC Sonoma | Owner's Manual - Page 351
guides,propshaft splines, universal joints and brake pedal springs. tocheck your brakes is during tire rotation. See "Brake System Inspection" under "Periodic Maintenance Inspections''in Part C of this schedule. + A good time Footnotes The U.S. Environmental Protection Agency or the California Air - 1998 GMC Sonoma | Owner's Manual - Page 352
first). (See footnote#.) 0 Check readfront axle fluid level and add fluid as needed. Check constant velocity joints and axle seals for leaking. (See footnote **.) 0 Change automatic transmission fluid and filter if the vehicle is mainly driven under one or more of these conditions: - In heavy city - 1998 GMC Sonoma | Owner's Manual - Page 353
engine oil and filter (or every 12 months, whichever occurs first). AIIEmission Contml Service. 0 Lubricate chassis components (or every 12 months, whichever occurs first). (See footnote #.) 0 Check readfront axle fluid level and add fluid as needed. Check constant velocity joints and axle seals - 1998 GMC Sonoma | Owner's Manual - Page 354
and add fluid as needed. Check constant velocity joints and axle seals for leaking. (Seefootnote *'+.) 0 For Two-Wheel-Drive vehicles only: Clean and repack the front wheel bearings (or at each brake relining, whichever occurs first). Change automatic transmission fluid and filter if the vehicle is - 1998 GMC Sonoma | Owner's Manual - Page 355
first). (See footnote#.) Check readfront axle fluid level and add fluid as needed. Check constant x:4:.) velocity joints and axle seals for leaking. (See footnote 0 Change automatic transmissionfluid and filter if the vehicle is mainly driven under one or more of these conditions: - In heavy city - 1998 GMC Sonoma | Owner's Manual - Page 356
engine oil and filter (or every 12 months, whichever occurs first). An Emission Control Service. 0 Lubricate chassis components (or every 12 months, whichever occurs first). (See footnote#.) 0 Check readfront axle fluid level and add fluid as needed. Check constant velocity joints and axle seals - 1998 GMC Sonoma | Owner's Manual - Page 357
and add fluid as needed. Check constant velocity joints and axle seals for leaking. (See footnote :k*.) 0 For Two-Wheel-Drive vehicles only: Clean and repack the front wheel bearings (or at each brake relining, whichever occurs first). Change automatic transmission fluid and filter if the vehicle is - 1998 GMC Sonoma | Owner's Manual - Page 358
engine accessory drive belt. An Emission Control Service. 0 Replace fuel filter. An Emission Control Service. (See footnote?.) Replace air cleaner filter. An Emission Control Service. 0 Inspect fuel tank, cap and lines for damage or leaks. Inspect fuel cap gasket for any damage. Replace parts - 1998 GMC Sonoma | Owner's Manual - Page 359
first). (See footnote#.) Check rear/front axle fluid level and add fluid as needed. Check constant velocity joints and axle seals for leaking. (See footnote **:) 0 Change automatic transmission fluid and filterif the vehicle is mainly driven under one or more of these conditions: - In heavy city - 1998 GMC Sonoma | Owner's Manual - Page 360
engine oil and filter (or every 12 months, whichever occurs first). An Emission Control Service. 0 Lubricate chassis components (or every 12 months, whichever occurs first). (See footnote #.) 0 Check readfront axle fluidlevel and add fluid as needed. Check constant velocity joints and axle seals - 1998 GMC Sonoma | Owner's Manual - Page 361
ctse yo~lr' do vehicle ~rnder ofthese conditions, change the fluid crrzy clndjilter every 50,000 miles (83 000 kin).' 0 Replace fuel filter. An Ernission Control Service. (See footnote?.) Cl Replace air cleaner filter. An Ernissiorz Control Service. 0 Rotate tires. See "Tire Inspection and Rotation - 1998 GMC Sonoma | Owner's Manual - Page 362
plug wires. An Emission Control Service. 0 Replace spark plugs. An Emission Control Service. 0 If you haven't used your vehicle under severe service conditions listed previously and, therefore, haven't changed your automatic transmission fluid, change both the fluidand filter. Manual transmission - 1998 GMC Sonoma | Owner's Manual - Page 363
, flush 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 neck. Pressure test and the cooling system and pressure cap. An Emission Control Service. 7-41 - 1998 GMC Sonoma | Owner's Manual - Page 364
broken air bag coverings, and have them repaired or replaced. (The air bag system does not need regular maintenance.) Engine Oil Level Check Check the engine oil level and add theoil if necessary. proper See "Engine Oil" in the Index for further details. Engine Coolant Level Check Check the engine - 1998 GMC Sonoma | Owner's Manual - Page 365
the lubricant specified in Part D. Automatic Transmission Check Check the transmission fluid level; add needed. See if "Automatic Transmission"in the Index. A fluid loss may indicate a problem. Check the system and repairif needed. Body Lubrication Service Lubricate all body door and fuel door - 1998 GMC Sonoma | Owner's Manual - Page 366
On automatic transmission vehicles, try to start the engine in each gear. The startershould work only in PARK (P) orNEUTRAL (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 halfway - 1998 GMC Sonoma | Owner's Manual - Page 367
brake. 0 With an automatic transmission, thekey should turn to LOCK only when the shift lever is in PARK (P). With a manual transmission, the key should turn to LOCK only when theshift lever is in REVERSE (R). To check theparking brake's holding ability: With the engine runningand transmission - 1998 GMC Sonoma | Owner's Manual - Page 368
service manual. See "Service and Owner Publications" in the Index. ~ Exhaust System Inspection Inspect the complete exhaust system.Inspect the body near the exhaust system.Look for broken, damaged, missing or out-of-position parts as well as open seams, holes, loose connections or other conditions - 1998 GMC Sonoma | Owner's Manual - Page 369
pads for wear and rotors for surface condition.Also inspect drum brake linings for wear and cracks. Inspect other brake parts, including drums, wheel cylinders, calipers,parking brake, etc. Check parking brake adjustment. You may need to have your brakes inspected more often if your driving habits - 1998 GMC Sonoma | Owner's Manual - Page 370
viscosity for your vehicle's engine, see "Engine Oil" in the Index. Hydraulic Clutch Hydraulic Clutch Fluid (GM Part No. 12345347 or equivalent System DOT-3 Brake Fluid). Power Steering System Manual Transmission with V 6 Engine Manual Transmission with L4 Engine GM Power Steering Fluid (GM - 1998 GMC Sonoma | Owner's Manual - Page 371
meeting requirements of NLGI #2, Category LB or GC-LB. Chassis Lubricant (GM Part No. 12377985 or equivalent) or lubricant meeting requirements of NLGI ## 2, Category LB or GC-LB. ~~ Front Wheel Bearings Rear Driveline Center Spline and Universal Joints Differential, Front and Rear Axle 7-49 - 1998 GMC Sonoma | Owner's Manual - Page 372
(GM Part % No. 12346241 or equivalent). Clutch Pushrod to Clutch Fork Joint Fuel Filler Door Multi-purpose lubricant, Superlube@ (GM Part and Weatherstrip Conditioning Weatherstrip Squeaks Dielectric Silicone Grease (GM Part No. 12345579 or equivalent). Multi-Pu ose Lubricant, Superlube (GM Part - 1998 GMC Sonoma | Owner's Manual - Page 373
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 themaintenance interval. Any additional information from "Owner Checks and ~~ Services" or "Periodic Maintenance" can be added on the - 1998 GMC Sonoma | Owner's Manual - Page 374
Maintenance Record DATE ODOMETER READING SERVICED BY MAINTENANCE PERFORMED 7-52 - 1998 GMC Sonoma | Owner's Manual - Page 375
~~~~ ____ Maintenance Record DATE ODOMETER READING SERVICED BY MAINTENANCE PERFORMED 7-53 - 1998 GMC Sonoma | Owner's Manual - Page 376
Maintenance Record DATE ODOMETER READING SERVICED BY MAINTENANCE PERFORMED 7-54 - 1998 GMC Sonoma | Owner's Manual - Page 377
contact GMCif you need assistance. Thissection also tells you how to obtain service publications and how to report any safety defects. 8-2 8-4 8-5 8-7 Canadian Roadside Assistance Courtesy Transportation GM Participation in an Alternative Dispute Resolution Program 8-10 8- 10 Warranty Information - 1998 GMC Sonoma | Owner's Manual - Page 378
Customer Satisfaction Procedure GMC dealers have the facilities, trained technicians and up-to-date information to promptly resolved at that level. If the matter has already been reviewed with the sales, service orparts manager, contact the owner of the dealership or the general manager. 8-2 - 1998 GMC Sonoma | Owner's Manual - Page 379
a member of dealership management, it appears your concern cannot be resolved by the dealershipwithout further help, contactthe GMC Consumer RelationsManager by calling 1-800-GMC-8782 (1-800-462-8782, Customer Assistance prompt.) Canada, contact In GM of Canada Customer Communication Centre in - 1998 GMC Sonoma | Owner's Manual - Page 380
We encourage you to call us so we can give your inquiry prompt attention. However, if you wish to write GMC, address your inquiry to: Pontiac-GMC Customer Assistance Center P.O. Box 436008 Pontiac, MI 48343-6008 In Canada, write to: General Motors of Canada Limited Customer Communication Centre, 163 - 1998 GMC Sonoma | Owner's Manual - Page 381
into your vehicle. Delivery of the replacement key will be covered at no charge within 10 miles (16 km). Emergency Towing Service: Towing to the nearest GMC dealer for warranty related disablements will be covered. GMC's Roadside Assistance provides strandedowners with over-the-phone roadside - 1998 GMC Sonoma | Owner's Manual - Page 382
charge. Maps include points interest and list of GMC dealers along the route. Trip Routing also includes a national hotel discount book and a book (VIN). The Roadside Assistance services listed are available to retail and retail lease customers operating 1998 GMC light duty trucks for a period - 1998 GMC Sonoma | Owner's Manual - Page 383
problem Roadside Assistance is available 24 hours a day, 7 days a week, 365 days a year, including weekends and holidays. Should you have any questions about roadside assistance, callthe GMC Roadside Assistance Center brochure provided by the dealer or call 1-800-268-6800 for emergency services. 8-7 - 1998 GMC Sonoma | Owner's Manual - Page 384
Plus Courtesy Transportation Program is not part of the Bumper to Bumper Limited Warranty. GMC reserves the right to make $30 allowance for a rental vehicle, cab, bus or other transportation in lieu ofa loaner. (Bringing vehicles in late in the day, for service on the next day, does not constitute - 1998 GMC Sonoma | Owner's Manual - Page 385
an Alternative Dispute LINE is an out-of-court program administered by the Better Business Bureau system to settle automotive disputes. Thisprogram is available free of charge To assist in resolving these disagreements, GMC voluntarily participates in BBB AUTO LINE. To file a claim,you will be - 1998 GMC Sonoma | Owner's Manual - Page 386
resort to AUTO LINE, but you may BBB at 1-800-955-5 100 or the GMC Customer Assistance Center at 1-800-GMC-8782 (1-800-462-8782). REPORTING SAFETY DEFECTS and remedy campaign. However, NHTSA cannot become involved in individual problems between you, your dealer or General Motors. To contact NHTSA, - 1998 GMC Sonoma | Owner's Manual - Page 387
8P7 Ordering Serviceand Owner Publications in Canada Service manuals, owner's manuals and other service literature are available for purchase for all current Please call us at 1-800-GMC-8782 (1-800-462-8782) or write: Pontiac-GMC Customer Assistance Center P.O. Box 436008 Pontiac, MI 48343-6008 8- - 1998 GMC Sonoma | Owner's Manual - Page 388
it in with your check, money order, or credit card information to Helm, Incorporated (address below.) CURRENT PUBLICATIONS FOR 1998 GMC SERVICE MANUALS Service Manuals havethe diagnosis and repairinformation on engines, transmission, axle, suspension, brakes, electrical, steering, body, etc. RETAIL - 1998 GMC Sonoma | Owner's Manual - Page 389
Manual Repair Portfolio In Unit ITEM DESCRIPTION Service Car & Light Truck Transmission VEHICLE MODEL QTY' TOTAL PRICE EACH* I 1 1998 1998 1998 $40.00 $15.00 I Manual Owner's Owner's Manual are to make checks payable in U S . funds. To cover Canadian postage, add $11.50 plus - 1998 GMC Sonoma | Owner's Manual - Page 390
fi NOTES 8-14 - 1998 GMC Sonoma | Owner's Manual - Page 391
System Wdrning Light ...2-59. 4-7 4-7 Anti-Lock Brakes ...6-5 1 Appearance Care ...AppearanceCare Materials ...6-00 Arbitration Program ...8-9 Armrest . Storage ...2-46 Ashtrays ...Audio System Tips ...Audio Systems ...Check ...Fluid ...6.17. Operation ...Park Mechanism Check ...Shi~tin ...g Axle - 1998 GMC Sonoma | Owner's Manual - Page 392
Stoplamp Bulb Replacement ...6-39 Center Passenger Position ...1-27 Certification/Tire Label ...4-4 I Chains 4-51 Safety ...6-50 Tire ...Changing a Flat Tire ...5-22 Charging System Light ...2-56 Check Gages Light ...2-64 Checking Your Restraint Systems ...1-48 6-59 Chemical Paint Spotting ... Child - 1998 GMC Sonoma | Owner's Manual - Page 393
t r Seat ...y 1-5 Electrical Equipment. Adding ...3-23. 6-62 6-62 Electrical System ...Engine ...6-9. 6. 10 Capacltles ...6-70 5 - 15.6-25 Coolant ...Coolant Heater ...2-16 Coolant Level Check ...7-42 Coolant Temperature Gage ...2-59 Exhaust ...2-27 FanNoise ...5-21 Identification ...6-61 Oil Level - 1998 GMC Sonoma | Owner's Manual - Page 394
2-64 6-70 6-65 6-63 6-63 Gages Engine Coolant Temperature ...2-59 Engine Oil Pressure ...2-62 Fuel ...2-64 6-5 GasCap ...GAWR ...4-41 2-17 GearPositions ...GloveBox ...2-45 4-41 Gross Axle Weight Rating ...Gross Vehicle Weight Rating ...4-41 .. Guide en Franpis ...II GVWR ...4-41 Halo. UenBulbs - 1998 GMC Sonoma | Owner's Manual - Page 395
Reminder ...2-40 1-5 Latches, Seatback ...Leaving Your Vehicle ...2-6 Leaving Your Vehicle with the Engine Running ...2-24 Lighter ...2-46 Lights AirBagOff ...2-55 Air Bag Readiness ...1-2 1, 2-54 Anti-Lock Brake System Warning ...2-59, 4-7 Brake System Warning ...2-58 2-56 Charging System ... 9-5 - 1998 GMC Sonoma | Owner's Manual - Page 396
...2-63 Service Engine Soon ...2-60 Shift ...2-57 Loading, Truck-Camper ...4-44 4-4 Loading Your Vehicle ...1 Locking Rear Axle ...2-28 2-6 Lockout Prevention ...Locks 2-4 Door ...Ignition Transmission Check ...7-45 Key Lock Cylinder Service ...7-43 PowerDoor ...2-5 Loss of Control ...4- 13 - 1998 GMC Sonoma | Owner's Manual - Page 397
Control ...2-44 5- 12 Overheating Engine ...Owner Checks and Services ...7-42 8- 12 Owner Publications. Ordering ...P a i n t Spotting. Chemical ...6-59 Park Automatic Transmission ...2- 17 Shifting Into ...2-23 Shifting Out of ...2-25 Parking AtNight ...2-10 Brake ...2-22 7-45 Brake Mechanism Check - 1998 GMC Sonoma | Owner's Manual - Page 398
Systems ...1. 1 Second Gear Automatic Transmission ...2-19 2-20 Manual Transmission ...Security WarningLight ...2-63 Service 4WD Light ...2-63 Service and Appearance Care ...6-1 Service Engine Soon Light ...2-60 Service Parts Identification Label ...6-61 Service Publications ...8-12 6-2 Service Work - 1998 GMC Sonoma | Owner's Manual - Page 399
Automatic Transmission ...2- I9 Third Gear. Manual Transmission ...2-20 2-33 Tilt Steering Wheel ...Time. Setting ...3-6 6-50 Tire Chains ...6-41 Tires ...Alignment and Balance ...6-49 6-46 BuylngNew ...ChangingaFlat ...5-22 Cleaning ...Inflation ...Inflation Check ...Trailer Brakes ...Driving on - 1998 GMC Sonoma | Owner's Manual - Page 400
...Vehicle Break-In ...Control ...Damage Warnings ...Dimensions ...Identification Number ...Loading ...Storage ...Ventilation System ...Visors.Sun ...Voltmeter ...6-59 6-50 2-11 4-6 iv 6-71 6-6 1 4-41 6-34 3-5 2-47 2-57 w a r n i n g Devices ...5-2 Warning Lights. Gages and Indicators ...2-53 - 1998 GMC Sonoma | Owner's Manual - Page 401
- 1998 GMC Sonoma | Owner's Manual - Page 402
Q &&c inches ( 4rJ . . X -.- - 1998 GMC Sonoma | Owner's Manual - Page 403
c Ingine Cooling System 2.21 Auto. or Man. Transmlssia VORTEC 4308Auto. Transmissio VORTEC 4300 Man. Transmissior I* 5 gallons (70 1 - 1998 GMC Sonoma | Owner's Manual - Page 404
1 I 3 - 1998 GMC Sonoma | Owner's Manual - Page 405
c - 1998 GMC Sonoma | Owner's Manual - Page 406
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