2008 GMC YUKON DENALI sunroof

Seats and Restraint Systems........................... 1-1
Front Seats
............................................... 1-2
Rear Seats
............................................... 1-9
Safety Belts
.............................................1-28
Child Restraints
.......................................1-49
Airbag System
.........................................1-75
Restraint System Check
............................1-92
Features and Controls..................................... 2-1
Keys
........................................................ 2-3
Doors and Locks
......................................2-10
Windows
.................................................2-19
Theft-Deterrent Systems
............................2-21
Starting and Operating Your Vehicle
...........2-25
Mirrors
....................................................2-40
Object Detection Systems
..........................2-44
OnStar
®System
......................................2-47
Universal Home Remote System
................2-50
Storage Areas
.........................................2-58
Sunroof
..................................................2-62
Instrument Panel............................................. 3-1
Instrument Panel Overview
.......................... 3-4
Climate Controls
......................................3-23
Warning Lights, Gages, and Indicators
........3-31
Driver Information Center (DIC)
..................3-49
Audio System(s)
.......................................3-73Driving Your Vehicle....................................... 4-1
Your Driving, the Road, and Your Vehicle
..... 4-2
Towing
...................................................4-40
Service and Appearance Care.......................... 5-1
Service
..................................................... 5-3
Fuel
......................................................... 5-5
Checking Things Under the Hood
...............5-10
All-Wheel Drive
........................................5-45
Rear Axle
...............................................5-46
Front Axle
...............................................5-47
Headlamp Aiming
.....................................5-48
Bulb Replacement
....................................5-50
Windshield Wiper Blade Replacement
.........5-53
Tires
......................................................5-55
Appearance Care
.....................................5-98
Vehicle Identication
...............................5-107
Electrical System
....................................5-108
Capacities and Specications
...................5-114
Maintenance Schedule..................................... 6-1
Maintenance Schedule
................................ 6-2
Customer Assistance Information.................... 7-1
Customer Assistance and Information
........... 7-2
Reporting Safety Defects
...........................7-13
Vehicle Data Recording and Privacy
...........7-15
Index.................................................................1
2008 GMC Yukon Denali/Yukon XL Denali Owner ManualM

OnStar®System.............................................2-47
Universal Home Remote System......................2-50
Universal Home Remote System.....................2-50
Universal Home Remote System Operation
(With Three Round LED)............................2-51
Storage Areas................................................2-58
Glove Box...................................................2-58
Cupholder(s)................................................2-58Instrument Panel Storage...............................2-59
Center Console Storage.................................2-59
Luggage Carrier...........................................2-59
Rear Storage Area........................................2-60
Convenience Net..........................................2-60
Cargo Cover................................................2-61
Sunroof.........................................................2-62
Section 2 Features and Controls
2-2

C (ON/RUN):This is the position for driving. It is the
position the ignition switch returns to after the engine
starts, and the key is released.
The battery could be drained if you leave the key in the
ACC/ACCESSORY or ON/RUN position with the engine
off. You may not be able to start your vehicle if the battery
is allowed to drain for an extended period of time.
D (START):This position starts the engine.
Key In the Ignition
Never leave your vehicle with the keys inside, as it is an
easy target for joy riders or thieves. If you leave the
key in the ignition and park your vehicle, a chime
will sound, when you open the driver’s door. Always
remember to remove your key from the ignition and take
it with you. This will lock your ignition and transmission.
Also, always remember to lock the doors.
The battery could be drained if you leave the key in the
ignition while your vehicle is parked. You may not be
able to start your vehicle after it has been parked for an
extended period of time.
Retained Accessory Power (RAP)
The following vehicle accessories can be used for up to
10 minutes after the engine is turned off:
Audio System
Power Windows
OnStar®System (if equipped)
Sunroof (if equipped)
These features work when the key is in ON/RUN or
ACC/ACCESSORY. Once the key is turned from
ON/RUN to LOCK/OFF, the windows and sunroof
continue to work up to 10 minutes until any door
is opened. The radio continues to work for up to
10 minutes or until the driver’s door is opened.
Starting the Engine
Move your shift lever to PARK (P) or NEUTRAL (N).
Your engine will not start in any other position – this is a
safety feature. To restart when you are already
moving, use NEUTRAL (N) only.
Notice:Do not try to shift to PARK (P) if your
vehicle is moving. If you do, you could damage the
transmission. Shift to PARK (P) only when your
vehicle is stopped.
2-27

Cargo Tie Downs
Your vehicle may have cargo tie downs in the rear
cargo area that allow you to strap cargo in and keep it
from moving inside the vehicle.
Sunroof
Your vehicle may be equipped with a power sliding
sunroof. To open or close the sunroof, the ignition needs
to be turned to ON, or Retained Accessory Power
(RAP) must be active. When RAP is active, the sunroof
will work for 10 minutes after the ignition is turned
off, or until a front door is opened. SeeRetained
Accessory Power (RAP) on page 2-27for more
information.
There are two switches in
the overhead console that
operate the sunroof.Manual-Open/Manual-Close:To open the sunroof
press and hold the rear of the driver’s side switch until
the sunroof reaches the desired position. To close
the sunroof, press and hold the front of the driver’s side
switch until the sunroof reaches the desired position.
The sunshade will open automatically with the sunroof,
but can also be opened manually.
The sunroof has a comfort stop feature which stops the
sunroof from opening to the full-open position. From
the comfort stop position, press the rear of the driver’s
side switch a second time to open the sunroof to
the full-open position.
When the sunroof is opened, an air deector will
automatically raise. The air deector will retract when
the sunroof is closed.
2-62

Express-Open/Express-Close:To express-open the
sunroof, fully press and release the rear of the
driver’s side switch. The sunroof will open automatically.
To stop the sunroof partway, press the switch a
second time. To express-close the sunroof, fully press
and release the front of the driver’s side switch. The
sunroof will close automatically. To stop the sunroof
partway, press the switch a second time. The sunshade
will open automatically with the sunroof, but can also
be opened manually.
The sunroof has a comfort stop feature which stops the
sunroof from opening to the full-open position. From
the comfort stop position, press the rear of the driver’s
side switch a second time to open the sunroof to
the full-open position.
When the sunroof is opened, an air deector will
automatically raise. The air deector will retract when
the sunroof is closed.Vent:The sunroof has an express-vent open feature.
From the closed position, press the rear of the
passenger’s side switch to vent the sunroof. To stop the
sunroof partway, press the switch a second time. To
close the sunroof, press and hold the front of the
passenger’s side switch. To stop the sunroof partway,
release the switch.
Anti-Pinch Feature:If an object is in the path of the
sunroof while it is closing, the anti-pinch feature will
detect the object and stop the sunroof from closing at
the point of the obstruction. The sunroof will then
open halfway, and the air deector will raise. To close
the sunroof once it has re-opened, refer to the
“Express-Close” or “Manual-Close” functions described
previously. If the sunroof is in the vent position, and
there is an object in the path of the sunroof when
it closing, the anti-pinch feature will detect the object
and stop the sunroof. To close the sunroof once it has
re-opened, refer to the “Manual-Close” or
“Express-Close” functions described previously.
2-63

Rear Side Window Antenna
Your AM-FM antenna is located in the passenger rear
side windows. Make sure the inside surfaces of the rear
side windows are not scratched and that the lines on
the glass are not damaged. If the inside surfaces
are damaged, they could interfere with radio reception.
Notice:Using a razor blade or sharp object to
clear the inside of the rear side windows may affect
radio reception or damage the rear window
defogger. Repairs would not be covered by your
warranty. Do not clear the inside of the rear
side windows with sharp objects.
Notice:Do not apply aftermarket glass tinting with
metallic lm. The metallic lm in some tinting
materials will interfere with or distort the incoming
radio reception. Any damage caused to your
antenna due to metallic tinting materials will not be
covered by your warranty.Because this antenna is built into the rear side windows,
there is a reduced risk of damage caused by car
washes and vandals.
If you choose to add an aftermarket cellular telephone
to your vehicle, and the antenna needs to be attached to
the glass, make sure you do not damage the grid
lines for the AM-FM antennas or place the cellular
telephone antenna over the grid lines.
XM™ Satellite Radio Antenna
System
The XM™ Satellite Radio antenna is located on the roof
of your vehicle. Keep this antenna clear of snow and
ice build up for clear radio reception.
If your vehicle has a sunroof, the performance of the
XM™ system may be affected if the sunroof is open.
Loading items onto the roof of your vehicle can interfere
with the performance of the XM™ system. Make sure
the XM™ Satellite Radio antenna is not obstructed.
3-119

Fuses Usage
6 Trailer Brake Controller
7 Front Washer
8 Oxygen Sensors
9 Antilock Brakes System 2
10 Trailer Back-up Lamps
11 Driver Side Low-Beam Headlamp
12 Engine Control Module (Battery)
13Fuel Injectors, Ignition Coils
(Right Side)
14Transmission Control Module
(Battery)
15 Vehicle Back-up Lamps
16Passenger Side Low-Beam
Headlamp
17 Air Conditioning Compressor
18 Oxygen Sensors
19 Transmission Controls (Ignition)
20 Fuel Pump
21 Fuel System Control Module
22 Headlamp Washers
23 Rear Windshield Washer
24Fuel Injectors, Ignition Coils
(Left Side)
25 Trailer Park LampsFuses Usage
26 Driver Side Park Lamps
27 Passenger Side Park Lamps
28 Fog Lamps
29 Horn
30Passenger Side High-Beam
Headlamp
31 Daytime Running Lamps
32 Driver Side High-Beam Headlamps
33 Daytime Running Lamps 2
34 Sunroof
35Key Ignition System, Theft Deterrent
System
36 Windshield Wiper
37 SEO B2 Uptter Usage (Battery)
38 Electric Adjustable Pedals
39 Climate Controls (Battery)
40 Airbag System (Ignition)
41 Amplier
42 Audio System
43Miscellaneous (Ignition), Cruise
Control
44 Liftgate Release
45 Airbag System (Battery)
46 Instrument Panel Cluster
5-112

Spare Tire (cont.)
Storing.......................................................5-94
Specications, Capacities...............................5-114
Speedometer..................................................3-33
Split Bench Seat (60/40).................................... 1-9
StabiliTrak
®System.......................................... 4-6
StabiliTrak®Indicator Light................................3-40
Start Vehicle, Remote....................................... 2-8
Starting the Engine.........................................2-27
Steering.......................................................... 4-8
Steering Wheel Controls, Audio.......................3-117
Steering Wheel, Heated..................................... 3-7
Steering Wheel, Tilt Wheel................................. 3-7
Storage Areas
Center Console Storage Area........................2-59
Convenience Net.........................................2-60
Cupholder(s)...............................................2-58
Glove Box..................................................2-58
Instrument Panel Storage Area......................2-59
Luggage Carrier..........................................2-59
Rear Storage Area.......................................2-60
Stuck in Sand, Mud, Ice, or Snow.....................4-32
Sun Visors.....................................................2-21
Sunroof.........................................................2-62
T
Tachometer....................................................3-33
Taillamps
Turn Signal, Stoplamps and Back-up Lamps....5-51
Theft-Deterrent, Radio....................................3-116
Theft-Deterrent Systems...................................2-21
Content Theft-Deterrent................................2-22
PASS-Key
®III+...........................................2-23
PASS-Key®III+ Operation.............................2-24
Third Row Seat..............................................1-23
Tilt Wheel........................................................ 3-7
Time, Setting..................................................3-74
Tire
Pressure Light.............................................3-41
Tires.............................................................5-55
Aluminum Wheels, Cleaning........................5-104
Buying New Tires........................................5-70
Chains.......................................................5-76
Changing a Flat Tire....................................5-78
Cleaning...................................................5-104
Different Size..............................................5-72
High-Speed Operation..................................5-62
If a Tire Goes Flat.......................................5-77
12