2006 GMC YUKON XL warning

Seats and Restraint Systems........................... 1-1
Front Seats
............................................... 1-3
Rear Seats
............................................... 1-8
Safety Belts
.............................................1-26
Child Restraints
.......................................1-47
Airbag System
.........................................1-74
Restraint System Check
............................1-88
Features and Controls..................................... 2-1
Keys
........................................................ 2-3
Doors and Locks
....................................... 2-8
Windows
.................................................2-14
Theft-Deterrent Systems
............................2-17
Starting and Operating Your Vehicle
...........2-19
Mirrors
....................................................2-37
OnStar
®System
......................................2-50
Universal Home Remote System
................2-52
Storage Areas
.........................................2-56
Sunroof
..................................................2-61
Vehicle Personalization
.............................2-62
Instrument Panel............................................. 3-1
Instrument Panel Overview
.......................... 3-4
Climate Controls
......................................3-22
Warning Lights, Gages, and Indicators
........3-35
Driver Information Center (DIC)
..................3-52
Audio System(s)
.......................................3-74Driving Your Vehicle....................................... 4-1
Your Driving, the Road, and Your Vehicle
..... 4-2
Towing
...................................................4-56
Service and Appearance Care.......................... 5-1
Service
..................................................... 5-3
Fuel
......................................................... 5-4
Checking Things Under the Hood
...............5-10
Rear Axle
...............................................5-46
Four-Wheel Drive
.....................................5-48
Front Axle
...............................................5-49
Bulb Replacement
....................................5-50
Windshield Wiper Blade Replacement
.........5-56
Tires
......................................................5-57
Appearance Care
.....................................5-96
Vehicle Identication
...............................5-105
Electrical System
....................................5-106
Capacities and Specications
...................5-114
Maintenance Schedule..................................... 6-1
Maintenance Schedule
................................ 6-2
Customer Assistance and Information.............. 7-1
Customer Assistance and Information
........... 7-2
Reporting Safety Defects
...........................7-14
Index................................................................ 1
2006 GMC Yukon, Yukon XL Owner ManualM

Safety Warnings and Symbols
There are a number of safety cautions in this book. We
use a box and the word CAUTION to tell 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 do not,
you or others could be hurt.You will also nd a circle
with a slash through it in
this book. This safety
symbol means “Do Not,”
“Do Not do this” or
“Do Not let this happen.”
iii

Vehicle Damage Warnings
Also, in this manual you will nd these notices:
Notice:These mean there is something that could
damage your vehicle.
A notice tells about something that can damage the
vehicle. Many times, this damage would not be covered
by your vehicle’s warranty, and it could be costly. But
the notice will tell 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.
There are also warning labels on the vehicle. They use
the same words, CAUTION or NOTICE.
Vehicle Symbols
The vehicle has components and labels that use
symbols instead of text. Symbols are shown along with
the text describing the operation or information
relating to a specic component, control, message,
gage, or indicator.
If you need help guring out a specic 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
iv

Theft-Deterrent Systems
Vehicle theft is big business, especially in some cities.
Although your vehicle has a number of theft-deterrent
features, we know that nothing we put on it can make
it impossible to steal.
Content Theft-Deterrent
Your vehicle may be equipped with a content
theft-deterrent alarm system.
The security light
is located on the
instrument panel
cluster. SeeSecurity
Light on page 3-49for
additional information.
To activate the theft-deterrent system, do the following:
1. Close all the doors.
2. Lock the door with the remote keyless entry
transmitter. The security light should come
on and ash.If the lock button on the remote keyless entry
transmitter is pressed, but a door is open, you may
hear three chimes indicating delayed locking is
enabled. SeeDelayed Locking on page 2-10for
additional information. Close the door and the
content theft-deterrent system will be activated.
If a locked door is opened without using the remote
keyless entry transmitter or OnStar, if equipped with
an active subscription, the alarm will go off. Your
vehicle’s lamps will ash and the horn will sound for
about two minutes, then will turn off to save the battery
power. If this occurs, you can turn off the alarm by
pressing unlock on the remote keyless entry transmitter
or by placing the key in the ignition and turning it
to START.
If your vehicle has a Driver Information Center (DIC),
you can customize your alarm warning. SeeDIC Vehicle
Customization on page 3-67for additional information.
The horn may chirp for 10 seconds before the alarm
goes off if the theft-deterrent system is activated using
the remote keyless entry transmitter and the driver’s
door is opened. If this occurs, you can turn off the
alarm by pressing unlock on the remote keyless entry
transmitter or by placing the key in the ignition and
turning it to START.
2-17

If the SERVICE 4WD message stays on, you should
take your vehicle to your dealer for service. See “Service
4WD message” underDIC Warnings and Messages
on page 3-56.
Shifting Into Four-Wheel High or
AUTO 4WD (Automatic Four-Wheel Drive)
Press and release the Four-Wheel High or AUTO
4WD button. This can be done at any speed, except
when shifting from Four-Wheel Low, and the indicator
light will ash while shifting. It will remain on when
the shift is completed.
Shifting Into Two-Wheel High
Press and release the Two-Wheel High button.
This can be done at any speed, except when
shifting from Four-Wheel Low.
Shifting Into Four-Wheel Low
To shift to the Four-Wheel Low position, the ignition
must be in RUN and the vehicle must be stopped
or moving less than 3 mph (5 km/h) with the
transmission in NEUTRAL (N). The preferred
method for shifting into four-wheel low is to have
your vehicle moving 1 to 2 mph (1.6 to 3.2 km/h).Press and release the Four-Wheel Low button.
You must wait for the four-wheel low indicator light
to stop ashing and remain on before shifting your
transmission in gear.
Notice:Shifting the transmission into gear before
the Four-Wheel Low indicator light has stopped
ashing could damage the transfer case. To
help avoid damaging your vehicle, always wait for
the Four-Wheel Low indicator light to stop ashing
before shifting the transmission into gear.
It is typical for your vehicle to exhibit signicant
engagement noise and bump when shifting between
Four-Wheel Low and Four-Wheel High ranges or from
NEUTRAL with the engine running.
If the Four-Wheel Low button is pressed when your
vehicle is in gear and/or moving, the Four-Wheel Low
indicator light will ash for 30 seconds and not complete
the shift unless your vehicle is moving less than
3 mph (5 km/h) and the transmission is in NEUTRAL (N).
After 30 seconds the transfer case will shift to
Four-Wheel High mode.
2-28

Parking Brake
To set the parking brake, hold the regular brake pedal
down with your right foot. Push down the parking
brake pedal with your left foot.
A chime will activate and the warning light will ash
when the parking brake is applied and the vehicle
is moving at least 3 mph (5 km/h) for at least
three seconds.
To release the parking brake, hold the regular brake
pedal down. Pull the bottom edge of the lever, located
above the parking brake pedal, with the parking
brake symbol, to release the parking brake.If the ignition is on when the parking brake is released,
the brake system warning light will go off.
Notice:Driving with the parking brake on can
overheat the brake system and cause premature
wear or damage to brake system parts. Verify that
the parking brake is fully released and the brake
warning light is off before driving.
If you are towing a trailer and are parking on any hill,
seeTowing a Trailer on page 4-60.
2-31

Instrument Panel Overview...............................3-4
Hazard Warning Flashers................................3-6
Other Warning Devices...................................3-6
Horn.............................................................3-6
Tilt Wheel.....................................................3-6
Turn Signal/Multifunction Lever.........................3-7
Turn and Lane-Change Signals........................3-8
Headlamp High/Low-Beam Changer..................3-8
Flash-to-Pass.................................................3-9
Windshield Wipers..........................................3-9
Windshield Washer.......................................3-10
Rear Window Wiper/Washer...........................3-10
Cruise Control..............................................3-11
Headlamps..................................................3-14
Headlamps on Reminder................................3-15
Daytime Running Lamps (DRL).......................3-16
Automatic Headlamp System..........................3-16
Fog Lamps..................................................3-18
Auxiliary Roof Mounted Lamp.........................3-19
Instrument Panel Brightness...........................3-19
Dome Lamps...............................................3-19
Dome Lamp Override....................................3-20Entry Lighting...............................................3-20
Exit Lighting.................................................3-20
Front Reading Lamps....................................3-20
Battery Run-Down Protection..........................3-20
Accessory Power Outlet(s).............................3-20
Ashtray(s) and Cigarette Lighter......................3-21
Climate Controls............................................3-22
Climate Control System.................................3-22
Dual Climate Control System..........................3-23
Dual Automatic Climate Control System...........3-25
Outlet Adjustment.........................................3-31
Rear Air Conditioning and Heating System.......3-32
Rear Air Conditioning and Heating System
and Electronic Climate Controls...................3-33
Warning Lights, Gages, and Indicators............3-35
Instrument Panel Cluster................................3-36
Speedometer and Odometer...........................3-37
Trip Odometer..............................................3-37
Tachometer.................................................3-37
Safety Belt Reminder Light.............................3-37
Airbag Readiness Light..................................3-38
Section 3 Instrument Panel
3-1

Passenger Airbag Status Indicator...................3-38
Battery Warning Light....................................3-40
Voltmeter Gage............................................3-41
Brake System Warning Light..........................3-42
Anti-Lock Brake System Warning Light.............3-43
Engine Coolant Temperature Gage..................3-43
Transmission Temperature Gage.....................3-44
Tire Pressure Light.......................................3-45
Malfunction Indicator Lamp.............................3-46
Oil Pressure Gage........................................3-48
Security Light...............................................3-49
Cruise Control Light......................................3-49
Highbeam On Light.......................................3-50
Four-Wheel-Drive Light..................................3-50
Tow/Haul Mode Light....................................3-50
Fuel Gage...................................................3-51
Low Fuel Warning Light.................................3-51
Driver Information Center (DIC).......................3-52
DIC Operation and Displays...........................3-53
DIC Warnings and Messages.........................3-56
DIC Vehicle Customization.............................3-67Audio System(s).............................................3-74
Setting the Time for Radios without
Radio Data Systems (RDS)........................3-75
Setting the Time for Radios with Radio
Data Systems (RDS)..................................3-75
AM-FM Radio...............................................3-76
Radio with CD..............................................3-79
Radio with Cassette and CD..........................3-90
Radio with Six-Disc CD................................3-104
Navigation/Radio System..............................3-118
Rear Seat Entertainment System...................3-118
Rear Seat Audio (RSA)................................3-130
Theft-Deterrent Feature................................3-132
Audio Steering Wheel Controls......................3-132
Radio Reception.........................................3-133
Care of the Cassette Tape Player.................3-134
Care of Your CDs and DVDs........................3-135
Care of the CD and DVD Player...................3-135
Fixed Mast Antenna....................................3-136
XM™ Satellite Radio Antenna System............3-136
Chime Level Adjustment...............................3-136
Section 3 Instrument Panel
3-2