GMC Yukonyukon XL 2003 Owner's Manual

2003 GMC Yukon/Yukon XL M

Seats and Restraint Systems

Front Seats Rear Seats Safety Belts Child Restraints Air Bag Systems Restraint System Check

Features and Controls

Keys Doors and Locks Windows Theft-Deterrent Systems Starting and Operating Your Vehicle Mirrors

OnStar HomeLink Storage Areas Sunroof Vehicle Personalization

Instrument Panel

Instrument Panel Overview Climate Controls Warning Lights, Gages and Indicators Driver Information Center (DIC) Audio System(s)

............................................... 1-3

............................................... 1-8

............................................. 1-22

....................................... 1-44

...................................... 1-70

........................................................ 2-3

................................................. 2-14

.................................................... 2-40

System

Transmitter

.................................................. 2-57

....................................... 2-7

...................................... 2-48

......................................... 2-54

............................................. 3-1

...................................... 3-21

....................................... 3-71

........................... 1-1

............................ 1-86

..................................... 2-1

............................ 2-16

............................. 2-50

............................. 2-58

.......................... 3-4

........... 2-18

......... 3-37

.................. 3-53

Driving Your Vehicle

Your Driving, the Road, and Your Vehicle Towing

Service and Appearance Care

Service Fuel Checking Things Under the Hood All-Wheel Drive Rear Axle Four-Wheel Drive Front Axle Bulb Replacement Windshield Wiper Blade Replacement Tires Appearance Care Vehicle Identiﬁcation Electrical System Capacities and Speciﬁcations Normal Maintenance Replacement Parts

Maintenance Schedule

Customer Assistance Information

Customer Assistance Information Reporting Safety Defects

Index

................................................... 4-54

..................................................... 5-3

......................................................... 5-4

...................................................... 5-60

.................................................................1

....................................... 4-1

.......................... 5-1

............... 5-10

........................................ 5-49

............................................... 5-50

..................................... 5-51

............................................... 5-52

.................................... 5-52

..................................... 5-88

................................. 5-96

...................................... 5-96

................... 5-106

..................................... 6-1

................................ 6-2

.................... 7-1

.................. 7-2

............................ 7-9

..... 4-2

......... 5-59

.... 5-109

Canadian Owners

You can obtain a French copy of this manual from your dealer or from:

Helm, Incorporated P.O. Box 07130 Detroit, MI 48207

GENERAL MOTORS, GM, the GM Emblem, GMC, the GMC Truck Emblem and the name YUKON/YUKON XL are registered trademarks of General Motors Corporation.

This manual includes the latest information at the time it was printed. We reserve the right to make changes after that time without further notice. For vehicles ﬁrst sold in Canada, substitute the name “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.

Litho in U.S.A. Part No. X2316 B First Edition

How to Use This Manual

Many people read their owner’s manual from beginning to end when they ﬁrst receive their new vehicle. If you do this, it will help you learn about the features and controls for your vehicle. In this manual, you will ﬁnd that pictures and words work together to explain things.

Index

A good place to look for what you need is the Index in back of the manual. It is an alphabetical list of what is in the manual, and the page number where you will ﬁnd it.

Safety Warnings and Symbols

You will ﬁnd a number of safety cautions in this book. We use a box and the word CAUTION to tell you about things that could hurt you if you were to ignore the warning.

{CAUTION:

These mean there is something that could hurt you 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 reduce the hazard. Please read these cautions. If you don’t, you or others could be hurt.

You will also ﬁnd a circle with a slash through it in this book. This safety symbol means “Don’t,” “Don’t do this” or “Don’t let this happen.”

iii

Vehicle Damage Warnings

Vehicle Symbols

Also, in this book you will ﬁnd these notices:

Notice:

damage your vehicle.

A notice will tell you about something 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 to help avoid the damage.

When you read other manuals, you might see CAUTION and NOTICE warnings in different colors or in different words.

You’ll also see warning labels on your vehicle. They use the same words, CAUTION or NOTICE.

These mean there is something that could

Your vehicle has components and labels that use symbols instead of text. Symbols, used on your vehicle, are shown along with the text describing the operation or information relating to a speciﬁc component, control, message, gage or indicator.

If you need help ﬁguring out a speciﬁc name of a component, gage or indicator, reference the following topics:

• Seats and Restraint Systems in Section 1

• Features and Controls in Section 2

• Instrument Panel Overview in Section 3

• Climate Controls in Section 3

• Warning Lights, Gages and Indicators in Section 3

• Audio System(s) in Section 3

• Engine Compartment Overview in Section 5

These are some examples of vehicle symbols you may ﬁnd on your vehicle:

Model Reference

This manual covers these models:

Yukon

Yukon XL

Section 1 Seats and Restraint Systems

Front Seats ......................................................1-3

Manual Seats ................................................1-3

Power Seats ..................................................1-4

Power Lumbar ...............................................1-5

Heated Seats .................................................1-5

Reclining Seatbacks ........................................1-6

Head Restraints .............................................1-8

Rear Seats .......................................................1-8

Rear Seat Operation .......................................1-8

60/40 Split Bench Seat ...................................1-9

50/50 Split Bench Seat ..................................1-11

Bench Seat ..................................................1-15

Bucket Seats ...............................................1-20

Safety Belts ...................................................1-22

Safety Belts: They Are for Everyone ................1-22

Questions and Answers About Safety Belts ......1-27

How to Wear Safety Belts Properly .................1-27

Driver Position ..............................................1-28

Safety Belt Use During Pregnancy ..................1-35

Right Front Passenger Position .......................1-36

Center Passenger Position .............................1-36

Rear Seat Passengers ..................................1-38

Rear Safety Belt Comfort Guides for

Children and Small Adults ..........................1-41

Safety Belt Extender .....................................1-43

Child Restraints .............................................1-44

Older Children ..............................................1-44

Infants and Young Children ............................1-46

Child Restraint Systems .................................1-50

Where to Put the Restraint .............................1-53

Top Strap ....................................................1-54

Top Strap Anchor Location .............................1-55

Lower Anchorages and Top Tethers for

Children (LATCH System) ...........................1-59

Securing a Child Restraint Designed for

the LATCH System ....................................1-61

Securing a Child Restraint in a Rear

Outside Seat Position ................................1-61

Securing a Child Restraint in a Center

Rear Seat Position ....................................1-64

Securing a Child Restraint in the Center

Front Seat Position ....................................1-66

Securing a Child Restraint in the Right

Front Seat Position ....................................1-66

Air Bag Systems ............................................1-70

Where Are the Air Bags? ...............................1-74

When Should an Air Bag Inﬂate? ....................1-76

What Makes an Air Bag Inﬂate? .....................1-78

How Does an Air Bag Restrain? .....................1-78

What Will You See After an

Air Bag Inﬂates? .......................................1-79

1-1

Section 1 Seats and Restraint Systems

Passenger Sensing System ............................1-81

Servicing Your Air Bag-Equipped Vehicle .........1-85

Adding Equipment to Your Air Bag-Equipped

Vehicle ....................................................1-86

1-2

Restraint System Check ..................................1-86

Checking Your Restraint Systems ...................1-86

Replacing Restraint System Parts

After a Crash ............................................1-87

Front Seats

Manual Seats

{CAUTION:

You can lose control of the vehicle if you try to adjust a manual driver’s seat while the vehicle is moving. The sudden movement could startle and confuse you, or make you push a pedal when you don’t want to. Adjust the driver’s seat only when the vehicle is not moving.

If your vehicle has a manual bucket or a split bench seat, you can adjust it with this lever located at the front of the seat.

Lift the lever to unlock the seat. Using your body, slide the seat to where you want it and release the lever. Try to move the seat with your body to make sure the seat is locked into place.

1-3

Power Seats

If your vehicle has a power seat, you can adjust it with these controls located on the outboard sides of the seats.

• Raise or lower the front of the seat cushion by

raising or lowering the forward edge of the horizontal control.

• Move the seat forward or rearward by moving the

whole horizontal control forward or rearward.

• Raise or lower the rear of the seat cushion by

raising or lowering the rear edge of the horizontal control.

• Moving the whole horizontal control up or down

raises or lowers the entire seat cushion.

If your vehicle has power reclining seats, you can use the vertical control to adjust the angle of the seatback. Move the reclining front seatback rearward or forward by moving the control toward the rear or the front of the vehicle. See

Reclining Seatbacks on page 1-6

1-4

Power Lumbar

Heated Seats

If your vehicle has this feature, the four-way control is located on the outboard side of the seat.

To increase or decrease support, press and hold the front or rear of the control. Let go of the control when the lower seatback reaches the desired level of support.

You can also reshape the side wing area of the lower seatback for more lateral support. To increase or decrease support, press and hold the top or bottom of the control. Let go of the control when the lower seatback reaches the desired level of support.

If your vehicle has this feature, the button used to control the driver’s heated seat is located on the driver’s door panel. The button used to control the passenger’s heated seat is located on the passenger’s door panel.

To heat the entire seat, press the horizontal button. Press the button to cycle through the temperature settings of high, medium, and low. The indicator light will glow to indicate the level of heat selected.

To heat only the seatback, press the vertical button with the heated seatback symbol. An indicator light on the button will glow to designate that only the seatback is being heated.

The engine must be running for them to operate. The heated front seats will be canceled after the ignition

is turned off. If you still want to use the heated front seat feature after you restart your vehicle, you will need to press the heated seat button again.

1-5

Reclining Seatbacks

To adjust the front seatback, lift the manual lever located on the outboard side of the seat. Release the lever to lock the seatback where you want it. Lift the lever again without pushing on the seatback and the seatback will go to an upright position.

If your vehicle has power seats with a power recliner, see

Power Seats on page 1-4

how to operate the reclining seatback feature.

for further information on

1-6

But don’t have a seatback reclined if your vehicle is moving.

{CAUTION:

Sitting in a reclined position when your vehicle is in motion can be dangerous. Even if you buckle up, your safety belts can’t do their job when you’re reclined like this.

The shoulder belt can’t do its job. 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 the belt could go up over your abdomen. The belt forces would be there, not at your pelvic bones. This could cause serious internal injuries.

For proper protection when the vehicle is in motion, have the seatback upright. Then sit well back in the seat and wear your safety belt properly.

1-7

Head Restraints

Adjust your head restraint so that the top of the restraint is closest to the top of your head. This position reduces the chance of a neck injury in a crash.

To raise the head restraint pull up on the head restraint. On some models the head restraints tilt forward and

rearward also.

The rear seat head restraints in your vehicle may be adjustable. They work the same as the front seat head restraints, except they do not tilt forward and rearward.

Rear Seats

Rear Seat Operation

Entering or Exiting the Third Row Seats

{CAUTION:

If the seatback isn’t locked, it could move forward in a sudden stop or crash. That could cause injury to the person sitting there. Always press rearward on the seatback to be sure it is locked.

1-8

Extended models: The passenger’s side of the second row 60/40 or rear bucket seats has an easy entry feature. This makes it easy to get in and out of the third seat, if your vehicle has one.

To operate the easy entry seat turn the release lever, located on the back of the seat upward.

Tilt the seatback toward the front of the vehicle by pulling the top of the seat forward. When you do the seat bottom will release. Pull the seat forward until it stops.

Be sure to return the seat to the passenger position when ﬁnished. Push and pull on the seat to make sure it is locked in place.

60/40 Split Bench Seat

Regular models: The rear seat may have a 60/40 split

seat which may be folded down to give you more cargo space.

Extended models: The second row rear seat of Suburban/Yukon XL models may have a 60/40 split seat. Either side of the rear seat my be folded down to provide more cargo space.

Folding the Seatbacks

{CAUTION:

If the seatback isn’t locked, it could move forward in a sudden stop or crash. That could cause injury to the person sitting there. Always press rearward on the seatback to be sure it is locked.

Make sure that nothing is under or in front of the seat and that the head restraints are completely lowered.

On regular models the rear seatbacks may be equipped with rearward folding head restraints. When the seatback is being folded down, the head restraint will automatically fold rearward to allow a ﬂat load ﬂoor for cargo or entry to the third row seat (if equipped).

1-9

To fold, pull up on the strap loop at the rear of the seat cushion. Then, pull the seat cushion up and fold it forward.

After folding the seat cushion fully forward, pull the seatback forward and fold the seatback down until it is ﬂat. If the seatback cannot fold ﬂat because it interferes with the cushion, try moving the seat forward and/or bring the front seatback more upright. On the passenger side of the extended models, the lever at the base of the seat must be turned rearward to release the seatback.

To create a load ﬂoor release the panels from the seatback by pushing forward on the latch. Then fold the panels back to cover the rear seat footwell area.

To return the seat to the passenger position on a extended model do the following:

1. Lift the ﬂoor load panels and latch them into the seatback.

2. Lift the seatback up and push rearward all the way.

3. Lower the seat cushion until it latches into position.

4. Pull forward on the seatback and up on the seat cushion to make sure the seat is securely in place.

1-10

Make sure that the buckles on the driver’s side seatback are accessible to the outboard and center occupant and are not under the seat cushions.

On regular models make sure the head restraints are returned to the upright position.

50/50 Split Bench Seat

If your vehicle has a 50/50 split bench, the seatback(s) can be folded and the entire seat(s) tilted or removed from the vehicles.

Folding the Seatbacks

{CAUTION:

If the seatback isn’t locked, it could move forward in a sudden stop or crash. That could cause injury to the person sitting there. Always press rearward on the seatback to be sure it is locked.

To fold the seatbacks do the following:

• Pull up on the release lever, labeled 1, located on

the rear of the seatback, and push the seatback forward.

• To return the seat to the passenger position, pull up

on the release lever labeled 1 and then pull up on the seatback until the seatback locks into the upright position.

Push forward on the seatback to make sure it is locked into position.

1-11

Tilting the 50/50 Split Bench Seat

{CAUTION:

If the seatback isn’t locked, it could move forward in a sudden stop or crash. That could cause injury to the person sitting there. Always press rearward on the seatback to be sure it is locked.

{CAUTION:

If the support rod isn’t properly engaged, the folded third row seat could come loose in a sudden stop or crash. That could cause injury to people and damage to your vehicle. Always be sure the support rod is properly engaged when the third row seat is folded forward.

Once the third seatback has been folded down, the entire seat can be tilted forward to create a ﬂat load ﬂoor. To do this, do the following:

1. Enter the rear cargo area of the vehicle.

2. Make sure the head restraints have been lowered completely.

3. With the seat folded, unlatch the seat from the ﬂoor by pulling up on the lever located under the carrying handle at the rear of the seat labeled 2.

4. Lift the rear of the seat up, off the ﬂoor. You will not be able to unlatch the seat from the ﬂoor unless the seatback is folded down.

5. Tilt the seat fully forward and secure it in place using the support rod located on the underside of the seat on the passenger’s side. Make sure the rod pin is fully engaged in the lock.

6. Push and pull on the seat. Make sure the support rod is holding it ﬁrmly in place. Use the seat in this position only when necessary for additional cargo space.

1-12

To return the seat to the seating position do the following:

1. Push forward on the seat and release the support lock rod.

2. Secure the support rod in its stored position on the underside of the seat.

3. Lower the seat to the ﬂoor and let the seat drop into place.

4. Lift up on the carrying handle to make sure the seat is locked in place.

5. Return the seatback to the upright position by pulling up on the release lever labeled 1 before the back can be folded upright.

6. Pull the seatback forward to make sure it is locked in place.

Removing the 50/50 Split Bench Seat

To remove the 50/50 split bench seat, do the following:

1. Open the rear doors and enter the rear of the vehicle.

2. Fold the seatback forward onto the seat cushion by using the lever labeled 1. The seat cannot be removed unless the seatback is folded.

1-13

3. To unlatch the seat from the ﬂoor, pull up on the release lever labeled 2, located at the rear of the seat, and lift the rear of the seat up off the ﬂoor.

Replacing the 50/50 Split Bench Seat

{CAUTION:

If the seatback isn’t locked, it could move forward in a sudden stop or crash. That could cause injury to the person sitting there. Always press rearward on the seatback to be sure it is locked.

4. Squeeze the release lever, located in the lower middle to unlatch the seat from the ﬂoor, while pulling the seat out.

5. While holding the rear of the seat up, roll the seat out of the vehicle.

1-14

{CAUTION:

A seat that isn’t locked into place properly can move around in a collision or sudden stop. People in the vehicle could be injured. Be sure to lock the seat into place properly when installing it.

{CAUTION:

A safety belt that is improperly routed, not properly attached, or twisted won’t provide the protection needed in a crash. The person wearing the belt could be seriously injured. After raising the rear seatback, always check to be sure that the safety belts are properly routed and attached, and are not twisted.

To reinstall the 50/50 split bench, do the following:

1. While holding the rear of the seat up, slide the front wheels into the slots on the ﬂoor. The front latches should lock into place. If the latches do not lock, try tilting the rear of the seats upwards.

2. Once the latches are engaged, let the seat drop into place. Release the lever labeled 1 to return the seat to its upright position.

3. Push and pull on the seat to make sure it is locked into place. The seatback cannot be raised to the upright position unless the seat is secured to the ﬂoor.

Bench Seat

If your vehicle has a full bench seat, the seatback can be folded and the seat can be tilted or removed from the vehicle.

1-15

Folding the Seatback

{CAUTION:

If the seatback isn’t locked, it could move forward in a sudden stop or crash. That could cause injury to the person sitting there. Always press rearward on the seatback to be sure it is locked.

2. To return the seat to an upright position, pull up on the release lever labeled 1 and then pull up on the seatback until the seatback locks into the upright position.

Push and pull on the seatback to check that it is locked into place.

Tilting the Bench Seat

{CAUTION:

To fold the seatback on the bench seat, do the following:

1. Pull up on the release lever, labeled 1, located on the rear of the seatback and push the seatback forward.

1-16

If the seatback isn’t locked, it could move forward in a sudden stop or crash. That could cause injury to the person sitting there. Always press rearward on the seatback to be sure it is locked.

{CAUTION:

Once the third seatback has been folded down, the entire seat can be tilted forward to create a ﬂat load ﬂoor. To do this, do the following:

1. Enter the rear cargo area of the vehicle.

2. Make sure the head restraints have been lowered completely.

3. With the seat folded, unlatch the seat from the ﬂoor by pulling up on the lever located under the carrying handle at the rear of the seat labeled 2.

4. Lift the rear of the seat up, off the ﬂoor. You will not be able to unlatch the seat from the ﬂoor unless the seatback is folded down.

5. Tilt the seat fully forward and secure it in place using the support rod located on the underside of the seat on the passenger’s side. Make sure the rod pin is fully engaged in the lock.

6. Push and pull on the seat. Make sure the support rod is holding it ﬁrmly in place. Use the seat in this position only when necessary for additional cargo space.

1-17

To return the seat to the seating position do the following:

1. Push forward on the seat and release the support lock rod.

2. Secure the support rod in its stored position on the underside of the seat.

3. Lower the seat to the ﬂoor and let the seat drop into place.

4. Lift up on the carrying handle to make sure the seat is locked in place.

5. Return the seatback to the upright position by pulling up on the release lever labeled 1 before the back can be folded upright.

6. Pull the seatback forward to make sure it is locked in place.

Removing the Bench Seat

To remove the full bench seat, do the following:

1. Open the rear doors and enter the rear of the vehicle.

2. Fold the seatback forward onto the seat cushion by using the lever labeled 1. The seat cannot be removed unless the seatback is folded.

3. To unlatch the seat from the ﬂoor, pull up on the release lever labeled 2, located at the rear of the seat, and lift the rear of the seat up off the ﬂoor.

1-18

4. Squeeze the release lever, located in the lower middle to unlatch the seat from the ﬂoor while pulling the seat out.

5. While holding the rear of the seat up, roll the seat out of the vehicle.

Replacing the Bench Seat

{CAUTION:

If the seatback isn’t locked, it could move forward in a sudden stop or crash. That could cause injury to the person sitting there. Always press rearward on the seatback to be sure it is locked.

{CAUTION:

A seat that isn’t locked into place properly can move around in a collision or sudden stop. People in the vehicle could be injured. Be sure to lock the seat into place properly when installing it.

{CAUTION:

1-19

To reinstall the full bench seat, do the following:

2. Once the latches are engaged, let the seat drop into place. Release the lever labeled 1 to return the seat to its upright position.

3. Push and pull on the seat to make sure it is locked into place. The seatback cannot be raised to the upright position unless the seat is secured to the ﬂoor.

Bucket Seats

If your vehicle has bucket seats, the seatbacks can be reclined and the seats can be folded to give you more cargo room.

Reclining the Seatbacks

On the extended models with bucket seats, the seatbacks can be reclined. To adjust the seatback do the following:

1. Pull forward the lever located at the base of the seat.

2. Release the lever to lock the seatback where you want it. If you pull the lever without pushing on the seatback, the seatback will go to an upright position.

Folding the Seatbacks

{CAUTION:

If the seatback isn’t locked, it could move forward in a sudden stop or crash. That could cause injury to the person sitting there. Always press rearward on the seatback to be sure it is locked.

The seatbacks on the bucket seats may be folded forward to give you more cargo space.

1-20

On extended models with rear bucket seats, the head restraints need to be removed in order to fold the rear seats. To do this follow these directions:

1. Lift the head restraints up until they stop.

2. Press in the button on the side of the head restraint guide cap and lift up on the head restraint.

3. Do the same for the other cap.

The head restraint can be removed and stored in the space provided in the folded up seat cushion.

To fold the seatbacks on the bucket seats, do the following:

1. Pull up on the strap loop located at the rear of the seat cushion and pull the seat cushion up. Then fold it forward.

2. Pull the seatback release lever up and pull the seatback forward. Then fold it until it is ﬂat.

If the seatback cannot fold ﬂat because it interferes with the cushion, try moving the front seat forward and/or bringing the front seatback more upright.

1-21

Once the seatbacks are folded down, the rear seat footwell area will be exposed and will have to be covered by the load ﬂoor panel. To create a load ﬂoor, do the following:

1. Release the panels from the seatbacks by pushing forward on the latches.

2. Then fold the panels back to cover the rear seat footwell area.

If you have removed the head restraints to fold the rear bucket seat, be sure to reinstall them on the seatback after it has been returned to the normal seating position.

Safety Belts

Safety Belts: They Are for Everyone

This part of the manual tells you how to use safety belts properly. It also tells you some things you should not do with safety belts.

{CAUTION:

Don’t let anyone ride where he or she can’t wear a safety belt properly. If you are in a crash and you’re not wearing a safety belt, your injuries can be much worse. You can hit things inside the vehicle or be ejected from it. You can be seriously injured or killed. In the same crash, you might not be, if you are buckled up. Always fasten your safety belt, and check that your passengers’ belts are fastened properly too.

1-22

{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 be seriously injured or killed. Do not allow people to ride in any area of your vehicle that is not equipped with seats and safety belts. Be sure everyone in your vehicle is in a seat and using a safety belt properly.

Your vehicle has a light that comes on as a reminder to buckle up. See

Safety Belt Reminder Light on page 3-39

In most states and in all Canadian provinces, the law says to wear safety belts. Here’s why:

You never know if you’ll be in a crash. If you do have a crash, you don’t know if it will be a bad one.

A few crashes are mild, and some crashes can be so serious 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 walk away. Without belts they could have been badly hurt or killed.

After more than 30 years of safety belts in vehicles, the facts are clear. In most crashes buckling up does matter... a lot!

They work

1-23

Why Safety Belts Work

When you ride in or on anything, you go as fast as it goes.

Take the simplest vehicle. Suppose it’s just a seat on wheels.

Put someone on it.

1-24

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