Seats and Restraint Systems
....................... 7
Front Seats
.............................................. 9
Rear Seats
............................................. 19
Safety Belts
............................................ 22
Child Restraints
...................................... 44
Airbag System
........................................ 91
Restraint System Check
....................... 111
Features and Controls
.............................. 113
Keys
..................................................... 115
Doors and Locks
.................................. 120
Windows
............................................... 129
Theft-Deterrent Systems
....................... 131
Starting and Operating Your Vehicle
..... 134
Mirrors
.................................................. 176OnStar®System
................................... 189
Universal Home Remote System
.......... 191
Storage Areas
...................................... 202
Sunroof
................................................ 205
Instrument Panel
....................................... 207
Instrument Panel Overview
................... 210
Climate Controls
................................... 230
Warning Lights, Gages, and Indicators
.... 244
Driver Information Center (DIC)
............ 265
Audio System(s)
................................... 289
Driving Your Vehicle
................................. 355
Your Driving, the Road, and
Your Vehicle
..................................... 356
Towing
................................................. 423
2007 GMC Sierra Classic Owner ManualM
1
Service and Appearance Care
.................. 465
Service
................................................. 468
Fuel
...................................................... 470
Checking Things Under the Hood
......... 478
Rear Axle
............................................. 527
Four-Wheel Drive
.................................. 528
Front Axle
............................................ 529
Noise Control System
........................... 531
Bulb Replacement
................................ 532
Windshield Wiper Blade
Replacement
..................................... 542
Tires
..................................................... 543
Appearance Care
.................................. 589
Vehicle Identi cation
............................. 598
Electrical System
.................................. 599
Capacities and Speci cations
................ 609Maintenance Schedule
.............................. 613
Maintenance Schedule
.......................... 614
Customer Assistance Information
............. 637
Customer Assistance and
Information
........................................ 638
Reporting Safety Defects
...................... 656
Index
.......................................................... 659
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
be equipped with 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 or from:
Helm, Incorporated
P.O. Box 07130
Detroit, MI 48207
Litho in U.S.A.
Part No. 15856875 A First Printing
©2006 General Motors Corporation. All Rights Reserved.
3