2004 GMC Yukon/Yukon XL Owner ManualSeats and Restraint Systems . 1-1Front Seats . 1-3Rear Seats. 1-8Safety Belts . 1-23Child Restraints. 1-45Air Bag Systems. 1-71Restraint System Check. 1-87Features and Controls . 2-1Keys. 2-3Doors and Locks. 2-8Windows . 2-15Theft-Deterrent Systems . 2-17Starting and Operating Your Vehicle. 2-20Mirrors . 2-43OnStar System. 2-52HomeLink Transmitter. 2-54Storage Areas. 2-58Sunroof. 2-61Vehicle Personalization. 2-62Instrument Panel . 3-1Instrument Panel Overview . 3-4Climate Controls. 3-22Warning Lights, Gages, and Indicators. 3-39Driver Information Center (DIC). 3-56Audio System(s) . 3-77MDriving Your Vehicle . 4-1Your Driving, the Road, and Your Vehicle. 4-2Towing. 4-53Service and Appearance Care . 5-1Service . 5-3Fuel . 5-5Checking Things Under the Hood. 5-12All-Wheel Drive. 5-52Rear Axle. 5-53Four-Wheel Drive. 5-54Front Axle. 5-55Bulb Replacement. 5-56Windshield Wiper Blade Replacement. 5-63Tires. 5-64Appearance Care. 5-104Vehicle Identification. 5-113Electrical System. 5-114Capacities and Specifications. 5-124Maintenance Schedule . 6-1Maintenance Schedule . 6-2Customer Assistance and Information . 7-1Customer Assistance and Information. 7-2Reporting Safety Defects . 7-10Index .1

Canadian OwnersA French language copy of this manual can be obtainedfrom your dealer or from:Helm, IncorporatedP.O. Box 07130Detroit, MI 48207GENERAL MOTORS, GM, the GM Emblem, GMC, theGMC Truck Emblem and the name YUKON/YUKON XLare registered trademarks of General Motors Corporation.This manual includes the latest information at the time itwas printed. We reserve the right to make changesafter that time without further notice. For vehicles firstsold in Canada, substitute the name “General Motors ofCanada Limited” for GMC whenever it appears in thismanual.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 thenew owner can use it.Litho in U.S.A.Part No. X2416 B First EditioniiHow to Use This ManualMany people read the owner manual from beginning toend when they first receive their new vehicle. If thisis done, it can help you learn about the featuresand controls for the vehicle. Pictures and words worktogether in the owner manual to explain things.IndexA good place to quickly locate information about thevehicle is the Index in the back of the manual. It is analphabetical list of what is in the manual, and thepage number where it can be found. Copyright General Motors Corporation 12/10/03All Rights Reserved

Safety Warnings and SymbolsThere are a number of safety cautions in this book.We use a box and the word CAUTION to tell aboutthings that could hurt you if you were to ignorethe warning.You will also find a circlewith a slash through it inthis book. This safetysymbol means “Do Not,”“Do Not do this” or “Do Notlet this happen.”{CAUTION:These mean there is something that could hurtyou or other people.In the caution area, we tell you what the hazard is.Then we tell you what to do to help avoid or reducethe hazard. Please read these cautions. If you do not,you or others could be hurt.iii

Vehicle Damage WarningsVehicle SymbolsAlso, in this manual you will find these notices:The vehicle has components and labels that usesymbols instead of text. Symbols are shown along withthe text describing the operation or informationrelating to a specific component, control, message,gage, or indicator.Notice: These mean there is something that coulddamage your vehicle.A notice tells about something that can damage thevehicle. Many times, this damage would not be coveredby your vehicle’s warranty, and it could be costly.But the notice will tell what to do to help avoid thedamage.When you read other manuals, you might see CAUTIONand NOTICE warnings in different colorsor in different words.There are also warning labels on the vehicle.They use the same words, CAUTION or NOTICE.ivIf you need help figuring out a specific name of acomponent, gage, or indicator, reference the followingtopics: Seats and Restraint Systems in Section 1Features and Controls in Section 2Instrument Panel Overview in Section 3Climate Controls in Section 3Warning Lights, Gages, and Indicators in Section 3Audio System(s) in Section 3Engine Compartment Overview in Section 5

These are some examples of symbols that may be found on the vehicle:v

Model ReferenceThis manual covers these models:YukonviYukon XL (Extended Model)

Section 1Seats and Restraint SystemsFront Seats .1-3Manual Seats .1-3Power Seats .1-4Power Lumbar .1-4Heated Seats .1-5Reclining Seatbacks .1-6Head Restraints .1-7Rear Seats .1-8Rear Seat Operation .1-860/40 Split Bench Seat .1-850/50 Split Bench Seat .1-11Bench Seat .1-16Bucket Seats .1-21Safety Belts .1-23Safety Belts: They Are for Everyone .1-23Questions and Answers About Safety Belts .1-28How to Wear Safety Belts Properly .1-29Driver Position .1-29Safety Belt Use During Pregnancy .1-36Right Front Passenger Position .1-37Center Passenger Position .1-37Rear Seat Passengers .1-39Rear Safety Belt Comfort Guides forChildren and Small Adults .1-42Safety Belt Extender .1-44Child Restraints .1-45Older Children .1-45Infants and Young Children .1-48Child Restraint Systems .1-51Where to Put the Restraint .1-54Top Strap .1-55Top Strap Anchor Location .1-56Lower Anchorages and Top Tethers forChildren (LATCH System) .1-59Securing a Child Restraint Designed forthe LATCH System .1-61Securing a Child Restraint in aRear Outside Seat Position .1-62Securing a Child Restraint in a CenterRear Seat Position .1-64Securing a Child Restraint in the CenterFront Seat Position .1-67Securing a Child Restraint in the RightFront Seat Position .1-671-1

Section 1Seats and Restraint SystemsAir Bag Systems .1-71Where Are the Air Bags? .1-74When Should an Air Bag Inflate? .1-77What Makes an Air Bag Inflate? .1-78How Does an Air Bag Restrain? .1-78What Will You See After anAir Bag Inflates? .1-79Passenger Sensing System .1-811-2Servicing Your Air Bag-Equipped Vehicle .1-86Adding Equipment to YourAir Bag-Equipped Vehicle .1-86Restraint System Check .1-87Checking Your Restraint Systems .1-87Replacing Restraint System Parts After aCrash .1-88

Front SeatsManual Seats{CAUTION:You can lose control of the vehicle if you try toadjust a manual driver’s seat while the vehicleis moving. The sudden movement could startleand confuse you, or make you push a pedalwhen you do not want to. Adjust the driver’sseat only when the vehicle is not moving.If your vehicle has a manual bucket or a split benchseat, you can adjust it with this lever located at the frontof the seat.Lift the lever to unlock the seat. Using your body, slidethe seat to where you want it and release the lever.Try to move the seat with your body to make sure theseat is locked into place.1-3

Power SeatsIf your vehicle has power reclining seats, you can usethe vertical control to adjust the angle of the seatback.Move the reclining front seatback rearward or forwardby moving the control toward the rear or the front of thevehicle. See Reclining Seatbacks on page 1-6.Power LumbarYour vehicle’s seats may be equipped with power lumbar.You can increase ordecrease lumbar supportin an area of the lowerseatback with this control,located on the outboardsides of the front seat(s).If your vehicle has a power seat, you can adjust it withthese controls located on the outboard sides of the seats. Raise or lower the front of the seat cushion by raisingor lowering the forward edge of the horizontal control. Move the seat forward or rearward by moving thewhole horizontal control forward or rearward. Raise or lower the rear of the seat cushion by raisingor lowering the rear edge of the horizontal control. Moving the whole horizontal control up or downraises or lowers the entire seat cushion.1-4To increase support, press and hold the front of thecontrol. To decrease support, press and hold the rear ofthe control. Let go of the control when the lowerseatback reaches the desired level of support.You can also reshape the side wing area of the lowerseatback for more lateral support.

To increase support, press and hold the top of thecontrol. To decrease support, press and hold the bottomof the control. Let go of the control when the lowerseatback reaches the desired level of support.To heat the entire seat, press the horizontal button.Press the button to cycle through the temperaturesettings of high, medium, and low. The indicator lightwill glow to indicate the level of heat selected.Your vehicle may have a memory function which allowsseat settings to be saved and recalled. See MemorySeat on page 2-62 for more information.To heat only the seatback, press the vertical button withthe heated seatback symbol. An indicator light on thebutton will glow to designate that only the seatbackis being heated.Heated SeatsThe engine must be running for them to operate.If your vehicle has thisfeature, the button used tocontrol the driver’sheated seat is located onthe driver’s door panel.The button used to controlthe passenger’s heatedseat is located on thepassenger’s door panel.The heated front seats will be canceled after the ignitionis turned off. If you still want to use the heated frontseat feature after you restart your vehicle, you will needto press the heated seat button again.1-5

Reclining SeatbacksTo adjust the front seatback, lift the manual lever locatedon the outboard side of the seat. Release the lever to lockthe seatback where you want it. Lift the lever againwithout pushing on the seatback and the seatback will goto an upright position.If your vehicle has power seats with a power recliner,see Power Seats on page 1-4 for further information onhow to operate the reclining seatback feature.1-6But don’t have a seatback reclined if your vehicle ismoving.

Head Restraints{CAUTION:Sitting in a reclined position when your vehicleis in motion can be dangerous. Even if youbuckle up, your safety belts can’t do their jobwhen you’re reclined like this.The shoulder belt can’t do its job. In a crash,you could go into it, receiving neck or otherinjuries.The lap belt can’t do its job either. In a crashthe belt could go up over your abdomen. Thebelt forces would be there, not at your pelvicbones. This could cause serious internalinjuries.For proper protection when the vehicle is inmotion, have the seatback upright. Then sitwell back in the seat and wear your safety beltproperly.Adjust your head restraint so that the top of the restraintis closest to the top of your head. This position reducesthe chance of a neck injury in a crash.To r

Vehicle Damage Warnings Also, in this manual you will find these notices: Notice: These mean there is something that could damage your vehicle. A notice tells about something that can damage the