2007 GMC SIERRA CLASSIC instrument panel

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

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

The person keeps going until stopped by
something. In a real vehicle, it could be the
windshield...or the instrument panel...
25

Securing a Child Restraint in the
Right Front Seat Position
(Regular and Extended Cab)
(With Airbag Off Switch)
Your vehicle has a right front passenger airbag. A
rear seat is a safer place to secure a forward-facing
child restraint. SeeWhere to Put the Restraint
on page 55.
If your instrument panel has one of the switches
pictured in the following illustrations, your
vehicle has an airbag off switch that you can use
to manually turn off the right front passenger’s
airbag.Your switch may vary slightly. SeeAirbag Off
Switch on page 100for more on this, including
important safety information and illustrations
of alternate switch designs.
United StatesCanada
78

Never put a rear facing child restraint in the right
front passenger’s seat unless the airbag is off.
Here is why:
{CAUTION:
A child in a rear-facing child restraint can
be seriously injured or killed if the right
front passenger’s airbag inates. This is
because the back of the rear-facing child
restraint would be very close to the
inating airbag. Be sure the airbag is off
before using a rear-facing child restraint in
the right front seat position. If you secure a
forward-facing child restraint in the right
front seat, always move the right front
passenger seat as far back as it will go.
A rear seat is a safer place to secure a forward
facing child restraint. SeeWhere to Put the
Restraint on page 55. If you need to secure a
forward-facing child restraint in the right front seat
position, move the seat as far back as it will gobefore securing a forward-facing child restraint.
SeeManual Seats on page 9orPower Seats
on page 10.
{CAUTION:
If the airbag readiness light in the
instrument panel cluster ever comes on
when you have turned off the airbag, it
means that something may be wrong with
the airbag system. The right front
passenger’s airbag could inate even
though the switch is off. If this ever
happens, have the vehicle serviced
promptly. Until you have the vehicle
serviced, do not let anyone whom the
national government has identied as a
member of a passenger airbag risk group
sit in the right front passenger’s position
(for example, do not secure a rear-facing
child restraint in the right front
passenger’s seat). SeeAirbag Off Switch
on page 100.
80

There is an airbag
readiness light on the
instrument panel cluster,
which shows the
airbag symbol.
The system checks the airbag electrical system for
malfunctions. The light tells you if there is an
electrical problem. SeeAirbag Readiness Light on
page 247for more information.Where Are the Airbags?
The driver’s airbag is in the middle of the steering
wheel.
93

The right front passenger’s airbag is in the
instrument panel on the passenger’s side.
{CAUTION:
If something is between an occupant and
an airbag, the bag might not inate
properly or it might force the object into
that person causing severe injury or even
death. The path of an inating airbag must
be kept clear. Do not put anything
between an occupant and an airbag, and
do not attach or put anything on the
steering wheel hub or on or near any
other airbag covering.
94

Dual Stage Airbags
If your vehicle has frontal airbags with dual stage
deployment, the amount of restraint will adjust
according to crash severity. Your vehicle has
electronic frontal sensors which help the sensing
system distinguish between a moderate and a
more severe frontal impact. For moderate frontal
impacts, these airbags inate at a level less
than full deployment. For more severe frontal
impacts, full deployment occurs. If the front of your
vehicle goes straight into a wall that does not
move or deform, the threshold level for the
reduced deployment is about 10 to 16 mph
(16 to 25 km/h), and the threshold level for a full
deployment is about 20 to 30 mph (32 to 48 km/h).
The threshold level can vary, however, with
specic vehicle design, so that it can be somewhat
above or below this range.Vehicle’s with dual stage airbags also have
special sensors which enable the sensing system
to monitor the position of both the driver and
passenger front seats. The seat position sensor
provides information which is used to determine if
the airbags should deploy at a reduced level or
at full deployment.
What Makes an Airbag Inate?
In an impact of sufficient severity, the airbag
sensing system detects that the vehicle is in a
crash. The sensing system triggers a release of gas
from the inator, which inates the airbag. The
inator, airbag, and related hardware are all part of
the airbag modules inside the steering wheel and in
the instrument panel in front of the right front
passenger.
97