Page 110 of 404
While activated, the
indicator light on the
instrument panel will
be on.
Tow/haul mode will turn off automatically when the
ignition is turned off. SeeTow/Haul Mode Light
on page 3-41.
Tow/haul is most effective when the vehicle and trailer
combined weight is at least 75 percent of the vehicle’s
Gross Combined Weight Rating (GCWR). See “Weight
of the Trailer” later in this section.
Driving with tow/haul activated without a heavy load will
cause reduced fuel economy and unpleasant engine
and transmission driving characteristics, but will
not cause damage.Parking Brake
To set the parking brake, hold the regular brake pedal,
then push down the parking brake pedal.
If the ignition is on, the brake system warning light will
come on.
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Page 118 of 404
Outside Heated Mirrors
Vehicles with outside
heated mirrors can be
defrosted by pressing the
mirror button located
near the fan control.
An indicator light in the button lights when the outside
heated mirrors are activated.
The rear window defogger comes on when the outside
heated mirrors are on. If the vehicle has a rear
window defogger, see “Rear Window Defogger” in
Climate Control System on page 3-19for more
information.
Storage Areas
Your vehicle may have a front storage compartment. It is
located at the center of the instrument panel extension,
by the floor. To open the compartment, pull up on the
latch. The compartment will open automatically.
Storage compartments may also be included on the
inside of each front door.
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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
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Page 120 of 404

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
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Instrument Panel Overview
3-4
Page 123 of 404

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).
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Turn Signal/Multifunction Lever
The lever on the left side of the steering column
includes the following:
G:Turn and Lane Change Signals.
53:Headlamp High/Low-Beam Changer.
N:Windshield Wipers.
L:Windshield Washer.
Flash-to-Pass Feature.
Information for these features is on the pages following.
Turn and Lane-Change Signals
G:An arrow on the instrument panel cluster flashes
in the direction of the turn or lane change.
To signal a turn, move the lever all the way up or down.
To signal a lane change, raise or lower the lever until
the arrow starts to flash. The turn signal automatically
flashes three times and if the tow-haul mode is active it
flashes six times. Holding the turn signal lever for
more than one second causes the turn signals to flash
continually until the lever is released.
The lever returns to its starting position when released.
If after signaling a turn or lane change the arrow flashes
rapidly or does not come on, a signal bulb may be
burned out.
Have the bulbs replaced. If the bulb is not burned out,
check the fuse. SeeFuses and Circuit Breakers on
page 5-104.
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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