2005 GMC YUKON DENALI all

Seats and Restraint Systems........................... 1-1
Front Seats
............................................... 1-3
Rear Seats
............................................... 1-8
Safety Belts
.............................................1-27
Child Restraints
.......................................1-47
Airbag System
.........................................1-70
Restraint System Check
............................1-85
Features and Controls..................................... 2-1
Keys
........................................................ 2-3
Doors and Locks
....................................... 2-8
Windows
.................................................2-15
Theft-Deterrent Systems
............................2-17
Starting and Operating Your Vehicle
...........2-19
Mirrors
....................................................2-32
OnStar
®System
......................................2-37
HomeLink®Transmitter
.............................2-39
Storage Areas
.........................................2-43
Sunroof
..................................................2-47
Vehicle Personalization
.............................2-48
Instrument Panel............................................. 3-1
Instrument Panel Overview
.......................... 3-4
Climate Controls
......................................3-20
Warning Lights, Gages, and Indicators
........3-28
Driver Information Center (DIC)
..................3-46
Audio System(s)
.......................................3-67Driving Your Vehicle....................................... 4-1
Your Driving, the Road, and Your Vehicle
..... 4-2
Towing
...................................................4-50
Service and Appearance Care.......................... 5-1
Service
..................................................... 5-3
Fuel
......................................................... 5-5
Checking Things Under the Hood
...............5-10
All-Wheel Drive
........................................5-47
Rear Axle
...............................................5-48
Front Axle
...............................................5-48
Bulb Replacement
....................................5-50
Windshield Wiper Blade Replacement
.........5-55
Tires
......................................................5-56
Appearance Care
.....................................5-94
Vehicle Identication
...............................5-104
Electrical System
....................................5-105
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
...........................7-11
Index................................................................ 1
2005 GMC Yukon Denali/Yukon XL Denali Owner ManualM

GENERAL MOTORS, GM, the GM Emblem, GMC, the
GMC Truck Emblem, and the names YUKON and
DENALI 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 rst
sold in Canada, substitute the name “General Motors of
Canada Limited” for GMC whenever it appears in this
manual.
Keep this manual in the vehicle, so it will be there if it is
needed while you are on the road. If the vehicle is
sold, leave this manual in the vehicle.
Canadian Owners
A French language copy of this manual can be obtained
from your dealer or from:
Helm, Incorporated
P.O. Box 07130
Detroit, MI 48207
How to Use This Manual
Many people read the owner manual from beginning to
end when they rst receive their new vehicle. If this
is done, it can help you learn about the features
and controls for the vehicle. Pictures and words work
together in the owner manual to explain things.
Index
A good place to quickly locate information about the
vehicle is the Index in the back of the manual. It is an
alphabetical list of what is in the manual and the
page number where it can be found.
Litho in U.S.A.
Part No. 05DENALI A First Edition
©2004 General Motors Corporation. All Rights Reserved.
ii

Front Seats......................................................1-3
Power Seats..................................................1-3
Power Lumbar...............................................1-4
Heated Seats.................................................1-5
Reclining Seatbacks........................................1-6
Head Restraints.............................................1-7
Rear Seats.......................................................1-8
Rear Seat Operation.......................................1-8
Heated Seats.................................................1-9
60/40 Split Bench Seat..................................1-10
50/50 Split Bench Seat..................................1-13
Bench Seat..................................................1-18
Bucket Seats...............................................1-24
Safety Belts...................................................1-27
Safety Belts: They Are for Everyone................1-27
Questions and Answers About Safety Belts......1-31
How to Wear Safety Belts Properly.................1-32
Driver Position..............................................1-32
Safety Belt Use During Pregnancy..................1-39
Right Front Passenger Position.......................1-40
Center Passenger Position.............................1-40
Rear Seat Passengers..................................1-41
Rear Safety Belt Comfort Guides for Children
and Small Adults.......................................1-44
Safety Belt Extender.....................................1-47Child Restraints.............................................1-47
Older Children..............................................1-47
Infants and Young Children............................1-50
Child Restraint Systems.................................1-53
Where to Put the Restraint.............................1-56
Top Strap....................................................1-57
Top Strap Anchor Location.............................1-58
Lower Anchorages and Top Tethers for
Children (LATCH System)...........................1-61
Securing a Child Restraint Designed for the
LATCH System.........................................1-63
Securing a Child Restraint in a Rear Outside
Seat Position............................................1-63
Securing a Child Restraint in a Center Rear
Seat Position............................................1-65
Securing a Child Restraint in the Right Front
Seat Position............................................1-67
Airbag System...............................................1-70
Where Are the Airbags?................................1-73
When Should an Airbag Inate?.....................1-76
What Makes an Airbag Inate?.......................1-77
How Does an Airbag Restrain?.......................1-77
What Will You See After an Airbag Inates?.....1-78
Passenger Sensing System............................1-79
Section 1 Seats and Restraint Systems
1-1

Front Seats
Power Seats
Horizontal Control:You can adjust your vehicle’s front
seats with the horizontal control located on the
outboard edge of each front seat.Raise or lower the front of the seat by raising or
lowering the forward edge of the control. Raise or lower
the rear of the seat by raising or lowering the rear
edge of the control.
Move the seat forward or rearward by moving the whole
control toward the front or toward the rear of the vehicle.
Moving the whole control up or down raises or lowers the
entire seat cushion.
Vertical Control:You can use the vertical control to
adjust the angle of the seatback. Move the reclining
seatback forward or rearward by moving the top of the
control toward the front or toward the rear of the
vehicle.
For information on the reclining seatbacks, seeReclining
Seatbacks on page 1-6.
Your vehicle may have a memory function which allows
seat settings to be saved and recalled. SeeMemory
Seat on page 2-48for more information.
1-3

Power Lumbar
Your vehicle’s seats may be equipped with power
lumbar.
You can increase or
decrease lumbar support
in an area of the lower
seatback with this control,
located on the outboard
sides of the front seat(s).
To increase support, press and hold the front of the
control. To decrease support, press and hold the 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 support, press and hold the top of the
control. To decrease support, press and hold the bottom
of the control. Let go of the control when the lower
seatback reaches the desired level of support.
Your vehicle may have a memory function which allows
seat settings to be saved and recalled. SeeMemory
Seat on page 2-48for more information.
1-4

Heated Seats
If your vehicle is equipped
with this feature, the
buttons are located on the
front doors. The engine
must be running for
the heated seats to work.
To heat the entire seat, press the horizontal button with
the heated seat and seatback symbol. Press the button to
cycle through the temperature settings of high, medium
and low and to turn the heated seat off. Indicator lights
will be lit to designate the level of heat selected: three for
high, two for medium, and one for low.The low setting warms the seatback and cushion until
the seat temperature is near body temperature. The
medium and high settings heat the seatback and seat
cushion to a slightly higher temperature. You will be able
to feel heat in about two minutes.
To heat only the seatback, press the vertical button with
the heated seatback symbol. An indicator light on the
seatback button will be lit to designate that only the
seatback is being heated. Additional presses of
the seatback button will cycle through the heat levels for
the seatback only. Press the horizontal button again
to heat the whole seat.
The heated front seats will shut off automatically when
the ignition is turned off.
1-5

Reclining Seatbacks
The vertical power seat control described earlier allows
the seatback to recline.
But do not 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 not do their
job when you are reclined like this.
The shoulder belt can not do its job. In a
crash, you could go into it, receiving neck or
other injuries.
The lap belt can not 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.
1-6

3. Pull (push if you are exiting the third row with no
assistance) the seat forward until it stops.
{CAUTION:
If the seatback is not 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 safety belt that is improperly routed, not
properly attached, or twisted will not 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.Be sure to return the seat to the passenger position
when nished. Pull forward and push rearward on the
seat to make sure it is locked in place.
Heated Seats
The buttons used to control
this feature are located on
the back of the center
console. The engine must
be running for the heated
seat feature to work.
To heat the seat, press the button to cycle through the
temperature settings of high and low. Press the
button a third time to turn the seats off. An Indicator
light will glow for each heat setting when the seats are
operating.
The heated rear seats will shut off automatically when
the ignition is turned off.
1-9