2007 GMC SIERRA CLASSIC steering

When this light comes on, you can shift to the next
higher gear if weather, road and traffic conditions
allow. For the best fuel economy, accelerate slowly
and shift when the light comes on.
While you accelerate, it is normal for the light to
go on and off if you quickly change the position of
the accelerator.
If your vehicle has four-wheel drive and has a
manual transmission, disregard the shift light when
the transfer case is in Four-Wheel Low.
Ignore the shift light when you downshift.
Four-Wheel Drive
If your vehicle has four-wheel drive, you can send
your engine’s driving power to all four wheels
for extra traction. To get the most satisfaction out
of four-wheel drive, you must be familiar with
its operation. Read the part that follows before
using four-wheel drive. See the appropriate text for
the transfer case in your vehicle.
While driving on clean dry pavement and during
tight turns, you may experience a vibration in
the steering system.
Front Axle Locking Feature
The front axle locks and unlocks automatically
when you shift the transfer case. Some delay for
the axle to lock or unlock is normal.
Manual Transfer Case
The transfer case shift lever is located on the oor
to the right of the driver. Use this lever to shift
into and out of four-wheel drive.
153

OnStar®Steering Wheel Controls
Your vehicle may be
equipped with a
Talk/Mute button that
can be used to interact
with OnStar
®.
SeeAudio Steering Wheel Controls on page 349
for more information.
When calling into voice mail systems, or to dial
directory numbers, press this button once, wait for
the response, say the number(s) to be dialed,
wait for the number(s) to be repeated and then say
“dial”. See the OnStar
®Owner’s Guide for more
information.
Universal Home Remote
System
Universal Home Remote System
(With Three Round LED)
The Universal Home Remote System provides a
way to replace up to three hand-held
Radio-Frequency (RF) transmitters used to
activate devices such as garage door openers,
security systems, and home lighting.
This device complies with Part 15 of the FCC
Rules. Operation is subject to the following
two conditions:
1. This device may not cause harmful
interference.
2. This device must accept any interference
received, including interference that may
cause undesired operation.
The FCC Grant of Equipment Authorization
Certicate number is KOBGTE05A.
191

Anti-Lock Brake System Warning Light...... 255
Traction Off Light...................................... 256
Engine Coolant Temperature Gage............ 256
Transmission Temperature Gage............... 257
Malfunction Indicator Lamp........................ 258
Oil Pressure Gage..................................... 262
Security Light............................................ 263
Cruise Control Light.................................. 263
Highbeam On Light................................... 263
Four-Wheel-Drive Light.............................. 263
Tow/Haul Mode Light................................ 264
Cargo Lamp Light..................................... 264
Fuel Gage................................................. 264
Low Fuel Warning Light............................ 265
Driver Information Center (DIC).................. 265
DIC Operation and Displays...................... 266
DIC Warnings and Messages.................... 270
DIC Vehicle Customization........................ 282Audio System(s)......................................... 289
Setting the Time for Radios without
Radio Data Systems (RDS).................... 290
Setting the Time for Radios with
Radio Data Systems (RDS).................... 291
AM-FM Radio............................................ 291
Radio with CD........................................... 294
Radio with Cassette and CD..................... 304
Radio with Six-Disc CD............................. 318
XM Radio Messages................................. 332
Rear Seat Entertainment System............... 334
Rear Seat Audio (RSA)............................. 347
Theft-Deterrent Feature............................. 348
Audio Steering Wheel Controls.................. 349
Radio Reception........................................ 350
Care of the Cassette Tape Player............. 350
Care of Your CDs and DVDs.................... 352
Care of the CD and DVD Player............... 352
Fixed Mast Antenna.................................. 353
XM™ Satellite Radio Antenna System....... 353
Chime Level Adjustment............................ 353
Section 3 Instrument Panel
208

The main components of your instrument panel are the following:
A. Dome Lamp Override Button. SeeDome Lamp
Override on page 227.
B. Headlamp Controls. SeeHeadlamps on
page 221.
C. Air Outlets. SeeOutlet Adjustment on
page 243.
D. Automatic Transfer Case/Electronic Transfer
Case/Traction Assist System (TAS). See
Four-Wheel Drive on page 153andTraction
Assist System (TAS) on page 363.
E. Multifunction Lever. SeeTurn
Signal/Multifunction Lever on page 214.
F. Instrument Panel Cluster. SeeInstrument Panel
Cluster on page 245.
G. Range Selection Mode (Allison Transmission
®
only) Button (If Equipped). SeeAutomatic
Transmission Operation on page 140.
H. Shift Lever. SeeAutomatic Transmission
Operation on page 140orManual Transmission
Operation on page 149for manual
transmissions.
I. Tow/Haul Selector Button (If Equipped). See
Tow/Haul Mode on page 147.J. Audio System. SeeAudio System(s) on
page 289.
K. Climate Control System. SeeClimate Control
System on page 230,Dual Climate Control
System on page 231andDual Automatic
Climate Control System on page 235.
L. Instrument Panel Fuse Block.Instrument Panel
Fuse Block on page 600.
M. Cargo Lamp Button. SeeCargo Lamp on
page 228.
N. Hood Release. SeeHood Release on
page 479.
O. Steering Wheel Control Buttons (If Equipped).
SeeDriver Information Center (DIC) on
page 265orAudio Steering Wheel Controls on
page 349.
P. Center Instrument Panel Fuse Block. See
Center Instrument Panel Fuse Block on
page 602.
Q. Parking Brake Release. SeeParking Brake on
page 169.
R. Tilt Wheel Lever. SeeTilt Wheel on page 213.
211

S. Cigarette Lighter. SeeAshtray(s) and Cigarette
Lighter on page 229.
T. Accessory Power Outlet. SeeAccessory Power
Outlet(s) on page 228.
U. Manual Selectable Ride Control (If Equipped).
SeeManual Selectable Ride on page 365.
V. Auxiliary Roof Mounted Lamp Button (If
Equipped). SeeAuxiliary Roof Mounted Lamp
on page 226.
W. Passenger Airbag Off Switch (If Equipped).
SeeAirbag Off Switch on page 100.
X. Glove Box. SeeGlove Box on page 202.
Hazard Warning Flashers
The hazard warning ashers warn others. They
also let police know you have a problem.
Your front and rear turn signal lamps will ash on
and off.The hazard warning
asher button is located
on top of the steering
column.
The hazard warning ashers work no matter what
ignition position the key is in, and even if the
key is not in the ignition.
Press the button to make the front and rear turn
signal lamps ash on and off. Press the button
again to turn the ashers off.
When the hazard warning ashers are on, your
turn signals will not work.
212

Other Warning Devices
If you carry reective triangles, you can set them
up at the side of the road about 300 feet (100 m)
behind your vehicle.
Horn
To sound the horn, press the center pad on the
steering wheel.
Tilt Wheel
The tilt wheel will allow you to adjust the steering
wheel before you drive. Raise it to the highest
level to give your legs more room when you exit
and enter your vehicle.The tilt steering wheel lever is located on the
lower left side of the column.
To tilt the wheel, hold the steering wheel and pull
the lever. Then move the steering wheel to a
comfortable position and release the lever to lock
the wheel in place.
213

Turn Signal/Multifunction Lever
The lever on the left side of the steering column
includes the following:
GTurn and Lane Change Signals. See
Turn and Lane-Change Signals on page 214.
53Headlamp High/Low-Beam Changer.
SeeHeadlamp High/Low-Beam Changer on
page 215.
Flash-to-Pass. SeeFlash-to-Pass on
page 216.
NWindshield Wipers. SeeWindshield
Wipers on page 216.
LWindshield Washer. SeeWindshield
Washer on page 217.
ICruise Control. SeeCruise Control on
page 217.
For information on the headlamps, seeHeadlamps
on page 221.
Turn and Lane-Change Signals
The turn signal has two upward (for right) and two
downward (for left) positions. These positions
allow you to signal a turn or a lane change.
To signal a turn, move the lever all the way up or
down. When the turn is nished, the lever will
return automatically.
To signal a lane change, raise or lower the lever
for less than one second until the arrow starts
to ash. This will cause the turn signals to
automatically ash three times. It will ash six
times if tow-haul mode is active. Holding the turn
signal lever for more than one second will
cause the turn signals to ash until you release
the lever. The lever will return by itself when
it is released.
214

Sensors
The solar sensor, located in the defrost grille, that
is in the middle of the instrument panel, monitors
the solar radiation. Do not cover the solar
sensor or the system will not work properly.There is an interior temperature sensor located
next to the steering wheel that measures the
temperature of the air inside your vehicle.
There is also an exterior temperature sensor
located behind the front grille. This sensor reads
the outside air temperature and helps maintain the
temperature inside the vehicle. Any cover on
the front of the vehicle could cause a false reading
in the displayed temperature.
241