2007 GMC SIERRA seats

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

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

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

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

Front Seats
Manual Seats
{CAUTION:
You can lose control of the vehicle if you
try to adjust a manual driver’s seat while
the vehicle is moving. The sudden
movement could startle and confuse you,
or make you push a pedal when you do
not want to. Adjust the driver’s seat only
when the vehicle is not moving.To move a manual seat forward or rearward:
1. Lift the bar to unlock
the seat.
2. Slide the seat to
where you want it
and release the bar.
Try to move the seat with your body to be sure
the seat is locked in place.
9

Power Seats
On a vehicle with power seats, the controls used
to operate them are located on the outboard
side of the seats. To adjust the seat, do any of
the following:
Move the seat forward or rearward by sliding
the control forward or rearward.
Raise or lower the front part of the seat
cushion by moving the front of the control up
or down.
Raise or lower the rear part of the seat
cushion by moving the rear of the control up
or down.
Raise or lower the entire seat by moving the
entire control up or down.
On seats with power reclining seatbacks, the
control is located behind the power seat control on
the outboard side of the seats. See “Power
Reclining Seatbacks” underReclining Seatbacks
on page 15.
A vehicle with a memory function allows seat
settings to be saved and recalled. SeeMemory
Seat, Mirrors, and Pedals on page 13for
more information.
Driver’s Seat with Power Seat Control, Power
Recline, and Power Lumbar shown
10

Manual Lumbar
If your vehicle has this feature, the knob is
located on the front of the driver seat lower
cushion on the outboard side. Turn the knob
forward to increase, and rearward to decrease
lumbar support.
Power Lumbar
If the seats have power lumbar, the controls used
to operate this feature are located on the
outboard side of the seats.
To increase lumbar support, press and hold
the front of the control.
To decrease lumbar support, press and hold
the rear of the control.
To raise the height of the lumbar support,
press and hold the top of the control.
To lower the height of the lumbar support,
press and hold the bottom of the control.
11