
Instrument Panel Overview...............................3-4
Hazard Warning Flashers................................3-6
Horn .............................................................3-6
Tilt Wheel.....................................................3-6
Turn Signal/Multifunction Lever.........................3-7
Turn and Lane-Change Signals........................3-7
Headlamp High/Low-Beam Changer..................3-8
Flash-to-Pass.................................................3-8
Windshield Wipers..........................................3-8
Windshield Washer.........................................3-9
Cruise Control..............................................3-10
Exterior Lamps.............................................3-13
Headlamps on Reminder................................3-14
Daytime Running Lamps (DRL).......................3-15
Automatic Headlamp System..........................3-15
Instrument Panel Brightness...........................3-16
Dome Lamps ...............................................3-16
Dome Lamp Override....................................3-16
Entry/Exit Lighting.........................................3-17
Reading Lamps............................................3-17
Electric Power Management...........................3-17
Battery Run-Down Protection..........................3-18
Accessory Power Outlet(s).............................3-18
Ashtray(s) and Cigarette Lighter......................3-19Climate Controls............................................3-19
Climate Control System.................................3-19
Outlet Adjustment.........................................3-21
Rear Heating System....................................3-22
Rear Air Conditioning and Heating
System....................................................3-23
Warning Lights, Gages, and Indicators............3-24
Instrument Panel Cluster................................3-25
Speedometer and Odometer...........................3-26
Trip Odometer..............................................3-26
Safety Belt Reminders...................................3-27
Airbag Readiness Light..................................3-27
Airbag Off Light............................................3-28
Passenger Airbag Status Indicator...................3-30
Charging System Light..................................3-31
Voltmeter Gage............................................3-32
Brake System Warning Light..........................3-33
Antilock Brake System (ABS) Warning
Light........................................................3-34
StabiliTrak
®Indicator Light.............................3-34
Engine Coolant Temperature Gage..................3-35
Tire Pressure Light.......................................3-35
Malfunction Indicator Lamp.............................3-36
Oil Pressure Gage........................................3-39
Section 3 Instrument Panel
3-1

Oil Pressure Light.........................................3-40
Security Light...............................................3-41
Cruise Control Light......................................3-41
Highbeam On Light.......................................3-41
Tow/Haul Mode Light....................................3-41
Fuel Gage...................................................3-42
Driver Information Center (DIC).......................3-43
DIC Operation and Displays...........................3-43
DIC Compass..............................................3-48
DIC Warnings and Messages.........................3-50
DIC Vehicle Customization.............................3-59Audio System(s).............................................3-65
Setting the Clock..........................................3-66
Radio(s)......................................................3-68
Using an MP3..............................................3-79
Theft-Deterrent Feature..................................3-84
Audio Steering Wheel Controls.......................3-85
Radio Reception...........................................3-86
Fixed Mast Antenna......................................3-86
Section 3 Instrument Panel
3-2

The main components of the instrument panel are the following:
A.Outlet Adjustment on page 3-21.
B.Driver Information Center (DIC) on page 3-43.
C.Turn Signal/Multifunction Lever on page 3-7.
D.Hazard Warning Flashers on page 3-6.
E.Instrument Panel Cluster on page 3-25.
F. Shift Lever. SeeStarting the Engine on page 2-20.
G.Climate Control System on page 3-19.
H.Audio System(s) on page 3-65.
I.Exterior Lamps on page 3-13.
J.Instrument Panel Brightness on page 3-16.
K.Cruise Control on page 3-10. Fast Idle System
(If Equipped). See Duramax Diesel Manual for more
information.L.Tilt Wheel on page 3-6.
M.Horn on page 3-6.
N.Audio Steering Wheel Controls on page 3-85.
O. Tow/Haul Mode Button. See “Tow/Haul Mode” under
Towing a Trailer on page 4-26.
P.Accessory Power Outlet(s) on page 3-18and
Ashtray(s) and Cigarette Lighter on page 3-19.
Q.StabiliTrak
®System on page 4-6(If Equipped).
R.Airbag Off Switch on page 1-68.
S.Storage Areas on page 2-34.
T.Passenger Airbag Status Indicator on page 3-30.
U.Rear Heating System on page 3-22(If Equipped).
3-5

Hazard Warning Flashers
|(Hazard Warning Flasher):Press this button
located on top of the steering column, to make the front
and rear turn signal lamps flash on and off. This warns
others that you are having trouble. Press again to turn the
flashers off.
When the hazard warning flashers are on, the vehicle’s
turn signals will not work.
Horn
Press the horn symbol in the middle of the steering
wheel to sound the horn.
Tilt Wheel
For vehicles with a tilt wheel, it lets the steering wheel
position be adjusted.
The lever is located on the left side of the steering
column.
Pull the lever to move the steering wheel up or down,
then release the lever to lock the wheel in place.
Do not adjust the steering wheel while driving.
3-6

Turn Signal On Chime
If the turn signal is left on for more than 3/4 of a mile
(1.2 km), a chime sounds at each flash of the turn signal
and the message TURN SIGNAL ON also appears in the
Driver Information Center (DIC). SeeDIC Warnings and
Messages on page 3-50. To turn off the chime and
message, move the turn signal lever to the off position.
Headlamp High/Low-Beam Changer
23(Headlamp High/Low-Beam Changer):Pull the
turn signal lever all the way toward you to change the
headlamps from low to high beam. Then release it.
This instrument panel cluster light comes on when the
high beam headlamps are on.
Flash-to-Pass
This feature is used to signal to the vehicle ahead that
you want to pass.
If the headlamps are off or in the low-beam position,
pull the turn signal lever toward you to momentarily
switch to high-beams.
Release the lever to turn the high-beam headlamps off.
Windshield Wipers
The windshield wiper control is located on the
multifunction lever on the left side of the steering wheel.
Turn the band with
Non it to the following positions:
8(Mist):For a single wiping cycle, hold the band
on mist until the wipers start, then let go. The wipers will
stop after one wipe. If more wipes are needed, hold
the band on mist longer.
6Delay: Turn the band to adjust the delay time between
wipes. The closer to the top of the lever, the shorter
the delay.
3-8

;(Parking Lamps):Turns on the parking lamps
together with the following:
•Instrument Panel Lights
•Taillamps
•License Plate Lamps
2(Headlamps):Turns on the headlamps together
with the following lamps listed below.
•Parking Lamps
•Instrument Panel Lights
•Taillamps
•License Plate Lamps
If the headlamps are turned on while the vehicle is on,
the headlamps turn off automatically 10 minutes
after the ignition is turned off. If the headlamps are
turned on while the vehicle is off, the headlamps will
continue to stay on. To prevent the battery from
being drained, turn the control to the
Oposition.A warning chime sounds if the driver door is opened
while the ignition switch is off and the headlamps are on.
To change the headlamps from low beam to high
beam, push the turn signal/multifunction lever toward
the instrument panel.
Headlamps on Reminder
If a door is open, a reminder chime sounds when the
headlamps or parking lamps are manually turned on and
the key is out of the ignition. To turn off the chime, turn
the headlamp switch to off or auto and then back on, or
close and re-open the door. In the auto mode, the
headlamps turn off once the ignition is in LOCK/OFF or
may remain on until the headlamp delay ends, if enabled
in the Driver Information Center (DIC). See “Exit Lighting”
underDIC Vehicle Customization on page 3-59.
3-14

9:Turns the system off.
9(Fan Control):Turn clockwise or counterclockwise
to increase or decrease the fan speed in the
rear-seating area.
Temperature Control:Turn clockwise or
counterclockwise to increase or decrease the
temperature in the rear-seating area.
The air-conditioning system on the main climate control
panel must be turned on to direct cooled air to the
rear of the vehicle. If it is not on, then the temperature
in the rear of the vehicle remains at cabin temperature.
Air Delivery Mode Control:Turn clockwise or
counterclockwise to change the direction of the airflow
in the rear seating area.
To change the current mode, select one of the following:
H(Vent):Air is directed to the upper outlets, with
some directed to the floor outlets.
2(Floor):Air is directed to the floor outlets.
Be sure to keep the area under the front seats clear of
any objects so that the air inside of the vehicle can
circulate effectively.For information on how to use the main climate control
system, seeClimate Control System on page 3-19.
For information on ventilation, seeOutlet Adjustment on
page 3-21.
Warning Lights, Gages, and
Indicators
Warning lights and gages can signal that something is
wrong before it becomes serious enough to cause
an expensive repair or replacement. Paying attention to
the warning lights and gages could prevent injury.
Warning lights come on when there may be or is a
problem with one of the vehicle’s functions. Some
warning lights come on briefly when the engine is started
to indicate they are working.
Gages can indicate when there may be or is a problem
with one of the vehicle’s functions. Often gages and
warning lights work together to indicate a problem with
the vehicle.
When one of the warning lights comes on and stays on
while driving, or when one of the gages shows there
may be a problem, check the section that explains what
to do. Follow this manual’s advice. Waiting to do
repairs can be costly and even dangerous.
3-24

The airbag readiness light
flashes for a few seconds
when the engine is started.
If the light does not come
on then, have it fixed
immediately.
{CAUTION:
If the airbag readiness light stays on after the
vehicle is started or comes on while driving, it
means the airbag system might not be working
properly. The airbags in the vehicle might not inflate
in a crash, or they could even inflate without a
crash. To help avoid injury, have the vehicle
serviced right away.
If there is a problem with the airbag system, an airbag
Driver Information Center (DIC) message can also come
on. SeeDIC Warnings and Messages on page 3-50
for more information.
Airbag Off Light
When the right front passenger airbag is manually turned
off using the airbag on-off switch on the instrument panel,
if equipped, the indicator light OFF or the off symbol will
come on and stay on as a reminder that the airbag has
been turned off. This light will go off when the airbag has
been turned on. SeeAirbag Off Switch on page 1-68for
more information, including important safety information.
United StatesCanada
3-28