Instrument Panel Overview...............................3-4
Hazard Warning Flashers................................3-6
Other Warning Devices...................................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..........................................3-9
Rainsense™ Wipers.......................................3-9
Windshield Washer.......................................3-10
Rear Window Wiper/Washer...........................3-10
Cruise Control..............................................3-11
Headlamps..................................................3-13
Daytime Running Lamps (DRL).......................3-14
Automatic Headlamp System..........................3-14
Fog Lamps..................................................3-15
Instrument Panel Brightness...........................3-16
Dome Lamps...............................................3-16
Dome Lamp Override....................................3-16
Entry Lighting...............................................3-17
Exit Lighting.................................................3-17
Reading Lamps............................................3-17Battery Run-Down Protection..........................3-17
Accessory Power Outlet(s).............................3-18
Ashtray(s) and Cigarette Lighter......................3-18
Climate Controls............................................3-19
Dual Automatic Climate Control System...........3-19
Outlet Adjustment.........................................3-23
Rear Climate Control System.........................3-24
Warning Lights, Gages, and Indicators............3-25
Instrument Panel Cluster................................3-26
Speedometer and Odometer...........................3-27
Trip Odometer..............................................3-27
Tachometer.................................................3-27
Safety Belt Reminder Light.............................3-28
Passenger Safety Belt Reminder Light.............3-28
Airbag Readiness Light..................................3-29
Passenger Airbag Status Indicator...................3-30
Charging System Light..................................3-32
Voltmeter Gage............................................3-32
Brake System Warning Light..........................3-33
Anti-Lock Brake System Warning Light.............3-34
StabiliTrak
®Service Light...............................3-34
StabiliTrak®Indicator Light..............................3-35
Engine Coolant Temperature Gage..................3-35
Section 3 Instrument Panel
3-1
The main components of your instrument panel are the following:
A. Exterior Lamp Control. SeeHeadlamps on
page 3-13. Dome Lamp Override Button. SeeDome
Lamp Override on page 3-16. Instrument Panel
Brightness Control. SeeInstrument Panel Brightness
on page 3-16. Fog Lamp Button (If Equipped).
SeeFog Lamps on page 3-15.
B. Air Outlets. SeeOutlet Adjustment on page 3-23.
C. Turn Signal/Multifunction Lever. SeeTurn
Signal/Multifunction Lever on page 3-7.
D. OnStar and Audio Steering Wheel Controls. See
Audio Steering Wheel Controls on page 3-126.
E. Instrument Panel Cluster. SeeInstrument Panel
Cluster on page 3-26.
F. Audio Steering Wheel Controls. SeeAudio Steering
Wheel Controls on page 3-126.
G. Ignition Switch. SeeIgnition Positions on page 2-18.
H. Audio System. SeeAudio System(s) on page 3-58.I. Climate Controls. SeeDual Automatic Climate
Control System on page 3-19.
J. Hood Release. SeeHood Release on page 5-11.
K. Driver Information Center (DIC) Steering Wheel
Controls. SeeDriver Information Center (DIC)
on page 3-43.
L. Rear Window Washer/Wiper. SeeWindshield
Washer on page 3-10.
M. Lighter. SeeAshtray(s) and Cigarette Lighter
on page 3-18.
N. Accessory Power Outlet. SeeAccessory Power
Outlet(s) on page 3-18.
O. Rear Window Defogger. See “Rear Window
Defogger” underDual Automatic Climate Control
System on page 3-19.
P. Glove Box. SeeGlove Box on page 2-46.
3-5
The system may also turn on your lights when driving
through a parking garage, heavy overcast weather
or a tunnel. This is normal.
There is a delay in the transition between the daytime
and nighttime operation of the Daytime Running
Lamps (DRL) and the automatic headlamp systems,
so that driving under bridges or bright overhead street
lights does not affect the system. The DRL and
automatic headlamp system will only be affected when
the light sensor sees a change in lighting lasting
longer than the delay.
If you start your vehicle in a dark garage, the automatic
headlamp system will come on immediately. Once
you leave the garage, it will take about one minute for
the automatic headlamp system to change to DRL if it is
light outside. During that delay, your instrument panel
cluster may not be as bright as usual. Make sure
your instrument panel brightness control is in the full
bright position.
Only vehicles rst sold in the United States can idle with
the automatic headlamp system off. To idle with the
automatic headlamp system off, set the parking brake
while the ignition is off. Then start your vehicle. The
automatic headlamp system will stay off until you release
the parking brake, shift out of park or turn the exterior
lamp control to the off position (US vehicles only)
as described previously.Fog Lamps
Your vehicle may have this feature. Use your fog lamps
for better vision in foggy or misty conditions. Your
ignition must be in RUN for your fog lamps to work.
The fog lamp button is
located on the instrument
panel to the right of
the exterior lamps knob.
Press the button to turn the fog lamps on. Press the
button again to turn them off. A light will glow near the
button while the fog lamps are on. Fog lamps will
turn off whenever your high-beam headlamps are on.
Some localities have laws that require the headlamps to
be on along with the fog lamps.
3-15
Manual Operation
To change the current setting, select one of the
following:
w9x(Fan):This button allows you to manually
adjust the fan speed. Press the up arrow to increase
fan speed and the down arrow to decrease fan speed.
The display will change to show you the selected
fan speed and the driver’s side temperature setting for
ve seconds.
C(Mode):Press this button to manually change the
direction of the air ow in your vehicle. Keep pressing the
button until the desired mode appears on the display.
The display will change to show you the selected
air delivery mode and the driver’s temperature setting
for ve seconds.
H(Vent):This mode directs air to the instrument
panel outlets.
)(Bi-Level):This mode directs approximately half
of the air to the instrument panel outlets, then directs the
remaining air to the oor outlets. A little air is directed
toward the windshield and the side window outlets.
Cooler air is directed to the upper outlets and warmer
air to the oor outlets.
6(Floor):This mode directs most of the air to the
oor outlets. Some air also comes out of the defroster
and side window outlets. The recirculation button cannot
be selected in oor mode.
@(Recirculation):Press this button to turn
recirculation mode on or off. When this button is
pressed, an indicator light in the button will also come
on to let you know that it is activated. Recirculation
mode is used to recirculate the air inside of your vehicle.
Use this mode to help prevent outside odors and/or
dust from entering your vehicle or to help cool the air
inside of your vehicle more quickly. Recirculation
mode can be used with vent and bi-level modes, but it
cannot be used with oor, defog or defrost modes.
You may also notice that the air conditioning compressor
will run while in recirculation mode. This is normal
and will help to prevent fogging.
If the weather is cold and damp, the system may
cause the windows to fog while using recirculation
mode. If the windows do start to fog, select defog or
defrost mode.
Recirculation mode, if selected, will be cleared when
the engine is turned off.
3-21
#A/C (Air Conditioning):Press this button to
manually turn the air conditioning system on or off.
When the system is on, the system will automatically
begin to cool and dehumidify the air inside of your
vehicle. The air conditioning symbol will appear on the
display when the air conditioning is on and will turn
off when the air conditioning is off.
If you select turn the air conditioning off while in front
defrost or defog mode, the air conditioning symbol
will turn off, however, the A/C compressor will remain
on to help de-humidify the air inside the vehicle.
If one of the other modes is selected the compressor
will then turn the A/C off until it is selected again or
the AUTO button is pressed.
To avoid fogging the inside glass on rainy and humid
days at temperature above freezing, press the
air-conditioning button to run the air conditioning
compressor. Also, it is best to avoid the use of
recirculation mode except when maximum air
conditioning performance is needed or for short times
to avoid exterior odors.
You may notice a slight change in engine performance
when the air-conditioning compressor shuts off and
turns on again. This is normal.Defogging and Defrosting
Fog on the inside of windows is a result of high
humidity (moisture) condensing on the cool window
glass. This can be minimized if the climate control
system is used properly. You can use either defog or
front defrost to clear fog or frost from your windshield.
-(Defog):Use this setting to clear the windows of
fog or moisture. This setting will deliver air to the
oor and windshield outlets.
0(Front Defrost):Press the front defrost button
to clear the windshield and side windows of frost or
fog quickly. The system will automatically control the
fan speed if you select defrost from AUTO mode.
If the outside temperature is 40°F (4°C) or warmer,
your air conditioning compressor will automatically run
to help dehumidify the air and dry the windshield.
Do not drive the vehicle until all the windows are clear.
3-22
Rear Window Defogger
The rear window defogger uses a warming grid to
remove fog from the rear window.
<(Rear):Press this button to turn the rear window
defogger on or off.
An indicator light in the button will come on to let you
know that the rear window defogger is activated.
The rear window defogger will turn off approximately
10 minutes after the button is pressed. If you need
additional warming time, press the button again.
If equipped, your heated mirrors will also come on when
you press this button.
Notice:Do not use a razor blade or sharp object
to clear the inside rear window. Do not adhere
anything to the defogger grid lines in the rear glass.
These actions may damage the rear defogger.
Repairs would not be covered by your warranty.
Outlet Adjustment
Use the air outlets located in the center and on the
sides of your instrument panel to direct the air ow.
Operation Tips
Keep the hood and front air inlets free of ice, snow,
or any other obstruction, such as leaves. The
heater and defroster will work far better, reducing
the chance of fogging the inside of your windows.
When you enter a vehicle in cold weather,
select maximum blower speed for a few moments
before driving. This helps clear the intake ducts
of snow and moisture, and reduces the chance
of fogging the inside of your window.
Keep the air path under the front seats clear of
objects. This helps air to circulate throughout
your vehicle.
Adding outside equipment to the front of your
vehicle, such as hood-air de ectors, may affect the
performance of the heating and air conditioning
system. Check with your dealer before adding
equipment to the outside of your vehicle.
3-23
Fuses Usage
5 Driver’s Side High-Beam Headlamp
6 Driver’s Side Low-Beam Headlamp
7 Rear Window Washer
8 Automatic Transfer Case
9 Windshield Washer
10 Powertrain Control Module B
11 Fog Lamps
12 Stoplamp
13 Cigarette Lighter
14 Not Used
15 Electric Adjustable Pedal
16 Truck Body Controller, Ignition 1
17 Crank
18 Airbag
19 Trailer Electric Brake
20 Cooling Fan
21 Horn
22 Ignition E
23 Electronic Throttle ControlFuses Usage
24Instrument Panel Cluster, Driver
Information Center
25 Automatic Shift Lock Control System
26 Engine 1
27 Back-Up
28 Powertrain Control Module 1
29 Oxygen Sensor
30 Air Conditioning
31 Truck Body Controller
32 Trailer
33 Anti-lock Brakes (ABS)
34 Ignition A
35 Blower Motor
36 Ignition B
50 Passenger’s Side Trailer Turn
51 Driver’s Side Trailer Turn
52 Hazard Flashers
53 Headlamp Driver Module
54 Air Injection Reactor (AIR) Solenoid
56 Air Injection Reactor (AIR) Pump
5-98
Fuses Usage
6 Driver’s Side Low-Beam Headlamp
7 Rear Window Washer
8 Automatic Transfer Case
9 Windshield Washer
10 Powertrain Control Module B
11 Fog Lamps
12 Stoplamp
13 Cigarette Lighter
14 Ignition Coils
15 Canister Vent
16 Truck Body Controller, Ignition 1
17 Crank
18 Airbag
19 Trailer Electric Brake
20 Cooling Fan
21 Horn
22 Ignition E
23 Electronic Throttle Control
24Instrument Panel Cluster, Driver
Information Center
25 Automatic Shift Lock Control System
26 Engine 1Fuses Usage
27 Back-Up
28 Powertrain Control Module 1
29 Powertrain
30 Air Conditioning
31 Injector Bank A
32 Trailer
33 Anti-lock Brakes (ABS)
34 Ignition A
35 Blower Motor
36 Ignition B
50 Passenger’s Side Trailer Turn
51 Driver’s Side Trailer Turn
52 Hazard Flashers
53 Transmission
54 Oxygen Sensor Bank B
55 Oxygen Sensor Bank A
56 Injector Bank B
57 Headlamp Driver Module
58 Truck Body Controller 1
59 Electric Adjustable Pedal
61Vehicle Stability Enhancement
System (StabiliTrak
®)
5-101