2007 GMC SIERRA Owner's Manual

Seats and Restraint Systems
....................... 7
Front Seats
.............................................. 9
Rear Seats
............................................. 20
Safety Belts
............................................ 22
Child Restraints
...................................... 45
Airbag System
........................................ 83
Restraint System Check
....................... 104
Features and Controls
.............................. 107
Keys
..................................................... 109
Doors and Locks
.................................. 118
Windows
............................................... 124
Theft-Deterrent Systems
....................... 127
Starting and Operating Your Vehicle
..... 132
Mirrors
.................................................. 169
OnStar
®System
................................... 180
Universal Home Remote System
.......... 184
Storage Areas
...................................... 196
Sunroof
................................................ 200Instrument Panel
....................................... 203
Instrument Panel Overview
................... 206
Climate Controls
................................... 234
Warning Lights, Gages, and
Indicators
.......................................... 246
Driver Information Center (DIC)
............ 267
Audio System(s)
................................... 300
Driving Your Vehicle
................................. 373
Your Driving, the Road, and
Your Vehicle
..................................... 374
Towing
................................................. 439
Service and Appearance Care
.................. 483
Service
................................................. 486
Fuel
...................................................... 488
Checking Things Under the Hood
......... 496
Rear Axle
............................................. 538
Four-Wheel Drive
.................................. 539
Front Axle
............................................ 541
2007 GMC Sierra Owner ManualM
1

Noise Control System
........................... 542
Bulb Replacement
................................ 543
Windshield Wiper Blade
Replacement
..................................... 549
Tires
..................................................... 550
Appearance Care
.................................. 597
Vehicle Identication
............................. 607
Electrical System
.................................. 608
Capacities and Specications
................ 616Maintenance Schedule
.............................. 619
Maintenance Schedule
.......................... 620
Customer Assistance Information
............. 643
Customer Assistance and
Information
........................................ 644
Reporting Safety Defects
...................... 662
Index
.......................................................... 665
2

GENERAL MOTORS, GM, the GM Emblem,
GMC, the GMC Truck Emblem, and the name
SIERRA 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.This manual describes features that may be
available in this model, but your vehicle may not
have all of them. For example, more than
one entertainment system may be offered or your
vehicle may have been ordered without a front
passenger or rear seats.
Keep this manual in the vehicle, so it will be there
if it is ever needed. If the vehicle is sold, leave
this manual in it so the new owner can use it.
Canadian Owners
A French language copy of this manual can be
obtained from your dealer/retailer or from:
Helm, Incorporated
P.O. Box 07130
Detroit, MI 48207
Litho in U.S.A.
Part No. 15854800 A First Printing
©2006 General Motors Corporation. All Rights Reserved.
3

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.
If your vehicle has the DURAMAX
®Diesel engine,
refer to the DURAMAX®Diesel supplement for
additional and specic information on this engine.
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.
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.”
4

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
5

These are some examples of symbols that may be found on the vehicle:
6

Front Seats..................................................... 9
Manual Seats................................................ 9
Power Seats............................................... 10
Manual Lumbar........................................... 11
Power Lumbar............................................. 11
Heated Seats.............................................. 12
Memory Seat, Mirrors, and Pedals.............. 13
Reclining Seatbacks.................................... 15
Head Restraints.......................................... 18
Seatback Latches........................................ 19
Center Seat................................................ 19
Rear Seats.................................................... 20
Rear Seat Operation (Full Bench)............... 20
Rear Seat Operation (Split Bench).............. 21
Safety Belts.................................................. 22
Safety Belts: They Are for Everyone........... 22
Questions and Answers About
Safety Belts............................................. 26
How to Wear Safety Belts Properly............. 27
Driver Position............................................. 28
Shoulder Belt Height Adjustment................. 35
Safety Belt Use During Pregnancy.............. 36Right Front Passenger Position................... 37
Center Front Passenger Position
(Regular Cab).......................................... 37
Center Front Passenger Position
(Crew and Extended Cab)....................... 38
Rear Seat Passengers................................ 39
Rear Safety Belt Comfort Guides................ 41
Safety Belt Pretensioners............................ 44
Safety Belt Extender................................... 44
Child Restraints............................................ 45
Older Children............................................. 45
Infants and Young Children......................... 48
Child Restraint Systems.............................. 51
Where to Put the Restraint.......................... 56
Lower Anchors and Tethers for
Children (LATCH).................................... 58
Securing a Child Restraint in a Rear
Seat Position........................................... 67
Securing a Child Restraint in the Center
Front Seat Position.................................. 69
Securing a Child Restraint in the Right
Front Seat Position (With Airbag
Off Switch)............................................... 70
Section 1 Seats and Restraint Systems
7

Securing a Child Restraint in the Right
Front Seat Position (With Passenger
Sensing System)...................................... 76
Securing a Child Restraint in the Right
Front Seat Position (Crew Cab)
(Heavy Duty Crew Cab Only)................... 80
Airbag System.............................................. 83
Where Are the Airbags?.............................. 86
When Should an Airbag Inate?.................. 89
What Makes an Airbag Inate?................... 91
How Does an Airbag Restrain?................... 91What Will You See After an
Airbag Inates?........................................ 92
Airbag Off Switch........................................ 93
Passenger Sensing System ......................... 97
Servicing Your Airbag-Equipped Vehicle.... 102
Adding Equipment to Your
Airbag-Equipped Vehicle........................ 102
Restraint System Check............................. 104
Checking the Restraint Systems................ 104
Replacing Restraint System Parts After
a Crash................................................. 105
Section 1 Seats and Restraint Systems
8