Bumper-to-Bumper3-years/36,000 miles (60 000 km)Limited WarrantyEvery2000 Sonomaunder warranty isbacked with thefollowingservices:1-800-GMC-8782( For vehicles purchased in Canada,call 1-800-268-6800)that provides in an emergency:CourtesyTransportationDeluxe TripRoutingFree lockout assistanceFree dead-battery assistanceFree out-of-fuel assistanceFree flat-tire changeEmergency towing

2000 GMC SonomaOwner's ManualLitho in U.S.A.Part Number X2008 B First Edition Copyright General Motors Corporation 1999All Rights Reservedi

Table of ContentsSeats and Restraint SystemsSection 1Seats and Seat ControlsSafety BeltsAir Bag SystemsChild RestraintsFeatures and ControlsSection 2iiKeys and Door LocksRemote Keyless Entry (RKE) SystemTailgateAutomatic Transmission (If Equipped)Manual Transmission Operation (If Equipped)Four-Wheel Drive Operation (If Equipped)Parking BrakeWindowsTilt WheelTurn Signal/Multifunction LeverWindshield WipersCruise ControlInterior and Exterior LampsMirrorsStorage CompartmentsAccessory Power OutletsInstrument Panel, Warning Lights and Gages

Table of Contents (cont'd)Comfort Controls and Audio SystemsSection 3Heating and Air ConditioningSetting the Radio ClockRadio/Cassette Player/CD PlayerRadio Theft-Deterrent FeatureSteering Wheel Controls (If Equipped)Your Driving and the RoadSection 4Braking/Anti-lock Brakes (If Equipped)Traction Control SystemSteeringDriving Tips for Various Road ConditionsOff-Road DrivingRecreational Vehicle TowingLoading Your VehicleTowing a TrailerProblems on the RoadSection 5Hazard Warning FlashersJump StartingTowing Your VehicleEngine OverheatingChanging a Flat TireIf You're Stuckiii

Table of Contents (cont'd)Service and Appearance CareSection 6FuelChecking Fluids and LubricantsBulb ReplacementWindshield Wiper Blade ReplacementTires and WheelsAppearance CareElectrical System/Fuses and Circuit BreakersCapacities and SpecificationsNormal Maintenance Replacement PartsMaintenance ScheduleSection 7ivScheduled MaintenancePeriodic Maintenance InspectionsRecommended Fluids and LubricantsMaintenance Records

Table of Contents (cont'd)Customer Assistance InformationSection 8Customer Satisfaction ProceduresCustomer Assistance OfficesRoadside Assistance and Courtesy TransportationWarranty Information (See Warranty Manual)Reporting Safety Defects on page 8-10Service PublicationsIndexSection 9In the Index you will find an alphabetical listing of almost every subject in this manual.You can use it to quickly find something you want to read.Please refer to the last page of this manual for your Service Station Guidev

We support voluntarytechnician certification.GENERAL MOTORS, GM, the GM Emblem, GMC,the GMC Emblem and the name SONOMA areregistered trademarks of General Motors Corporation.This manual includes the latest information at the timeit was printed. We reserve the right to make changesin the product after that time without further notice.For vehicles first sold in Canada, substitute the name“General Motors of Canada Limited” for GMCwhenever it appears in this manual.Please keep this manual in your vehicle, so it will bethere if you ever need it when you’re on the road. If yousell the vehicle, please leave this manual in it so the newowner can use it.viFor Canadian Owners Who Prefer aFrench Language Manual:Aux propriétaires canadiens: Vous pouvez vousprocurer un exemplaire de ce guide en français chezvotre concessionaire ou au:DGN Marketing Services Ltd.1577 Meyerside Dr.Mississauga, Ontario L5T 1B9

How to Use this ManualSafety Warnings and SymbolsMany people read their owner’s manual from beginningto end when they first receive their new vehicle. If youdo this, it will help you learn about the features andcontrols for your vehicle. In this manual, you’ll findthat pictures and words work together to explainthings quickly.You will find a number of safety cautions in this book.We use a box and the word CAUTION to tell youabout things that could hurt you if you were to ignorethe warning.CAUTION:These mean there is something that could hurtyou or other people.In the caution area, we tell you what the hazard is. Thenwe tell you what to do to help avoid or reduce thehazard. Please read these cautions. If you don’t, you orothers could be hurt.vii

You will also find a circlewith a slash through it inthis book. This safetysymbol means “Don’t,”“Don’t do this” or “Don’tlet this happen.”In the notice area, we tell you about something that candamage your vehicle. Many times, this damage wouldnot be covered by your warranty, and it could be costly.But the notice will tell you what to do to help avoidthe damage.When you read other manuals, you might seeCAUTION and NOTICE warnings in different colors orin different words.You’ll also see warning labels on your vehicle. They usethe same words, CAUTION or NOTICE.Vehicle Damage WarningsAlso, in this book you will find these notices:NOTICE:These mean there is something that coulddamage your vehicle.viii

Vehicle SymbolsThese are some of the symbols you may find on your vehicle.For example,these symbolsare used on anoriginal battery:CAUTIONPOSSIBLEINJURYPROTECTEYES BYSHIELDINGCAUSTICBATTERYACID COULDCAUSEBURNSAVOIDSPARKS ORFLAMESSPARK ORFLAMECOULDEXPLODEBATTERYThese symbolsare importantfor you andyour passengerswhenever yourvehicle isdriven:DOOR LOCKUNLOCKThese symbolshave to do withyour WINDOWAIR BAGThese symbolsare on some ofyour G INGFANThese symbolsare used onwarning andindicator lights:Here are someother symbolsyou may TERHORNBRAKECOOLANTSPEAKERENGINE OILPRESSUREFUELANTI-LOCKBRAKESix

Model ReferenceThis manual covers these models:x

Service Station GuideFora MoreDetailed Look atWhat's Under the HoodBatteryCooling SystemSee Section 6See Section 5Tire PressureSee Section 6Spare Tire PressureSee Sections 5, 6See Section 6Hood ReleaseSee Section 6Windshield WasherFluidSee Section 6Engine Oil DipstickSee Section 6Oil ViscosityEngine OilSee Section 6FuelUse unleaded gas only,87 Octane or higher.See Section 6

Section 1 Seats and Restraint SystemsHere you’ll find information about the seats in your vehicle and how to use your safety belts properly. You can alsolearn about some things you should not do with air bags and safety belts.1-21-71-111-121-121-191-201-20Seats and Seat ControlsSafety Belts: They’re for EveryoneHere Are Questions Many People Ask AboutSafety Belts -- and the AnswersHow to Wear Safety Belts ProperlyDriver PositionSafety Belt Use During PregnancyRight Front Passenger PositionAir Bag System1-301-321-331-361-481-501-501-50Center Passenger PositionRear Seat Passengers(Extended Cab Jump Seats)ChildrenChild RestraintsLarger ChildrenSafety Belt ExtenderChecking Your Restraint SystemsReplacing Restraint System PartsAfter a Crash1-1-1

Seats and Seat ControlsThis section tells you about the seats -- how to adjustthem, and fold them up and down.Manual Front SeatCAUTION:You can lose control of the vehicle if you try toadjust a manual driver’s seat while the vehicle ismoving. The sudden movement could startle andconfuse you, or make you push a pedal when youdon’t want to. Adjust the driver’s seat only whenthe vehicle is not moving.1-2Move the lever under the front of the manual seat up tounlock it. Slide the seat to where you want it. Thenrelease the lever and try to move the seat with your bodyto make sure the seat is locked into place.

Manual Lumbar Support (If Equipped)If you have this feature,there will be a knob on theoutside of the driver andpassenger bucket seats.Turn the knob toward the front of the vehicle to increaselumbar support and toward the rear of the vehicle todecrease lumbar support.Reclining Seatbacks(Bucket Seats or 60/40 Bench)To adjust the front seatback,lift the lever on the outerside of the seat.Release the lever to lock the seatback where youwant it. Pull up on the lever and the seat will go to anupright position.1-3

CAUTION:But don’t have a seatback reclined if your vehicleis moving.1-4Sitting in a reclined position when your vehicle isin motion can be dangerous. Even if you buckleup, your safety belts can’t do their job whenyou’re reclined like this.The shoulder belt can’t do its job because itwon’t be against your body. Instead, it will be infront of you. In a crash you could go into it,receiving neck or other injuries.The lap belt can’t do its job either. In a crash thebelt could go up over your abdomen. The beltforces would be there, not at your pelvic bones.This could cause serious internal injuries.For proper protection when the vehicle is inmotion, have the seatback upright. Then sit wellback in the seat and wear your safetybelt properly.

Seatback LatchesThe front seatback foldsforward to let people getinto the back seat or toaccess the storage areabehind the seat.CAUTION:If the seatback isn’t locked, it could moveforward in a sudden stop or crash. That couldcause injury to the person sitting there. Alwayspress rearward on the seatback to be sure itis locked.Easy Entry Seat (Extended Cab Models)The right front bucket or split-bench seat of your vehiclemakes it easy to get in and out of the rear vehicle area.To fold the front seatback forward, turn the handle on theside of the seat rearward and pull the seatback forward.D Tilt the right front seatback completely forward andTo return the seatback to the upright position, push theseatback all the way back until the latch catches. If theseatback was reclined before being folded forward, itwill return to the reclined position.D Move the seatback to its original position afterthe whole seat will slide forward.someone gets into the rear seat area. Then move theseat rearward until it locks.1-5

Jump Seat (Extended Cab Models)CAUTION:If an easy entry right front seat isn’t locked, itcan move. In a sudden stop or crash, the personsitting there could be injured. After you’ve usedit, be sure to push rearward on an easy entry seatto be sure it is locked.Your extended cab pickuphas a jump seat in therear area.D Tilt the seatback completely forward againto get out.To fold the jump seat down, pull down on the pull tab onthe bottom of the seat until the seat is in place, thenmove the seatback to a vertical position. To store theseat, fold the seatback down on the cushion, then pushthe entire seat up until it is flush with the trim panel.Don’t let the safety belts be damaged by the hinges orthe latches. Safety belts should be folded and storedbetween the seat cushion and seatback.1-6

Safety Belts: They’re for EveryoneThis part of the manual tells you how to use safety beltsproperly. It also tells you some things you should not dowith safety belts.And it explains the air bag system.CAUTION:Don’t let anyone ride where he or she can’t weara safety belt properly. If you are in a crash andyou’re not wearing a safety belt, your injuriescan be much worse. You can hit things inside thevehicle or be ejected from it. You can be seriouslyinjured or killed. In the same crash, you mightnot be if you are buckled up. Always fasten yoursafety belt, and check that your passengers’ beltsare fastened properly too.CAUTION:It is extremely dangerous to ride in a cargo area,inside or outside of a vehicle. In a collision,people riding in these areas are more likely to beseriously injured or killed. Do not allow people toride in any area of your vehicle that is notequipped with seats and safety belts. Be sureeveryone in your vehicle is in a seat and using asafety belt properly.Your vehicle has a light thatcomes on as a reminder tobuckle up. (See “Safety BeltReminder Light” inthe Index.)1-7

In most states and Canadian provinces, the law says towear safety belts. Here’s why: They work.You never know if you’ll be in a crash. If you do have acrash, you don’t know if it will be a bad one.Why Safety Belts WorkWhen you ride in or on anything, you go as fastas it goes.A few crashes are mild, and some crashes can be soserious that even buckled up a person wouldn’t survive.But most crashes are in between. In many of them,people who buckle up can survive and sometimes walkaway. Without belts they could have been badly hurtor killed.After more than 30 years of safety belts in vehicles,the facts are clear. In most crashes buckling up doesmatter . a lot!Take the simplest vehicle. Suppose it’s just a seaton wheels.1-8

Put someone on it.Get it up to speed. Then stop the vehicle. The riderdoesn’t stop.1-9

The person keeps going until stopped by something.In a real vehicle, it could be the windshield .1-10or the instrument panel .

Here Are Questions Many People AskAbout Safety Belts -- and the AnswersQ: Won’t I be trapped in the vehicle after anaccident if I’m wearing a safety belt?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 whysafety belts make such good sense.A:You could be -- whether you’re wearing a safetybelt or not. But you can unbuckle a safety belt,even if you’re upside down. And your chance ofbeing conscious during and after an accident, soyou can unbuckle and get out, is much greater ifyou are belted.Q:If my vehicle has air bags, why should I have towear safety belts?A:Air bags are in many vehicles today and willbe in most of them in the future. But they aresupplemental systems only; so they work withsafety belts -- not instead of them. Every air bagsystem ever offered for sale has required the use ofsafety belts. Even if you’re in a vehicle that has airbags, you still have to buckle up to get the mostprotection. That’s true not only in frontal collisions,but especially in side and other collisions.1-11

Q:If I’m a good driver, and I never driv

2000 Sonoma under warranty is backed with the . “General Motors of Canada Limited” for GMC whenever it appears in this manual. Please keep this manual in your vehicle, so it will be there if you ever need it when you’re on the road. If you sell the vehicle, please leave this manual in it so the new owner can use it. We support voluntary technician certification. For Canadian Owners Who .File Size: 2MBPage Count: 381