2009 CHEVROLET EXPRESS CARGO VAN air conditioning

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 specific component, control, message,
gage, or indicator.
M:This symbol is shown when you need to see your
owner manual for additional instructions or information.
*:This symbol is shown when you need to see a
service manual for additional instructions or information.
Vehicle Symbol Chart
Here are some additional symbols that may be found on
the vehicle and what they mean. For more information
on the symbol, refer to the index.
9:Airbag Readiness Light
#:Air Conditioning
!:Antilock Brake System (ABS)
g:Audio Steering Wheel Controls or OnStar®
$:Brake System Warning Light
":Charging System
I:Cruise Control
B:Engine Coolant Temperature
O:Exterior Lamps
#:Fog Lamps
.:Fuel Gage
+:Fuses
i:Headlamp High/Low-Beam Changer
j:LATCH System Child Restraints
*:Malfunction Indicator Lamp
::Oil Pressure
}:Power
/:Remote Vehicle Start
>:Safety Belt Reminders
7:Tire Pressure Monitor
_:Tow/Haul Mode
F:Traction Control
M:Windshield Washer Fluid
iv

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................................................3-9
Exterior Lamps.............................................3-12
Headlamps on Reminder................................3-14
Daytime Running Lamps (DRL).......................3-14
Automatic Headlamp System..........................3-15
Instrument Panel Brightness...........................3-15
Dome Lamps ...............................................3-16
Dome Lamp Override....................................3-16
Entry/Exit Lighting.........................................3-16
Reading Lamps............................................3-16
Electric Power Management...........................3-17
Battery Run-Down Protection..........................3-17
Accessory Power Outlet(s).............................3-18
Ashtray(s) and Cigarette Lighter......................3-18Climate Controls............................................3-19
Climate Control System.................................3-19
Outlet Adjustment.........................................3-21
Rear Heating System....................................3-21
Rear Air Conditioning and Heating System.......3-22
Warning Lights, Gages, and Indicators............3-23
Instrument Panel Cluster................................3-24
Speedometer and Odometer...........................3-25
Trip Odometer..............................................3-25
Safety Belt Reminders...................................3-26
Airbag Readiness Light
..................................3-27
Airbag Off Light............................................3-28
Passenger Airbag Status Indicator...................3-29
Charging System Light..................................3-30
Voltmeter Gage............................................3-31
Brake System Warning Light..........................3-31
Antilock Brake System (ABS) Warning Light.....3-32
StabiliTrak
®Indicator Light.............................3-33
Engine Coolant Temperature Gage..................3-33
Tire Pressure Light.......................................3-34
Malfunction Indicator Lamp.............................3-34
Oil Pressure Gage........................................3-37
Oil Pressure Light.........................................3-38
Security Light...............................................3-39
Section 3 Instrument Panel
3-1

Climate Controls
Climate Control System
The heating, cooling, and ventilation for the vehicle can
be controlled with this system.
A. Fan Control
B. Temperature Control
C. Air Delivery Mode Control
9(Fan Control):Turn the knob clockwise or
counterclockwise to increase or decrease the fan speed.
9(Off):Turns the system off.
Temperature Control:Turn the knob clockwise
or counterclockwise to increase or decrease the
temperature inside the vehicle.Air Delivery Mode Control:Turn the knob clockwise
or counterclockwise to change the current airflow mode.
H(Vent):Air is directed to the instrument panel
outlets.
)(Bi-Level):Air is divided between the instrument
panel and floor outlets, with some air directed toward the
windshield.
6(Floor):Air is directed to the floor outlets with
some air directed to the windshield and side windows.
-(Defog):This mode clears the windows of fog
or moisture. Outside air is directed to the floor and
defroster outlets. Adjust the temperature knob for
warmer or cooler air. The air conditioning compressor
might turn on in this setting to dehumidify the air.
1(Defrost):This mode clears the windshield of fog
or frost more quickly. Air is directed to the windshield,
with some to the floor outlets and front side windows.
The air conditioning compressor might turn on in
this setting to dehumidify the air.
Do not drive the vehicle until all the windows are clear. Vehicles Without Air Conditioning
3-19

On hot days, open the windows to let hot inside air
escape; then close them. This helps to reduce the time
needed for the vehicle to cool down and the system
operates more efficiently.
#(Air Conditioning):Cools and dehumidifies the air
inside of the vehicle.
V(Maximum Air Conditioning):Cools the air inside
the vehicle faster, by recirculating the inside air.
Rear Window Defogger
For vehicles with a rear window defogger, a warming
grid is used to remove fog or frost from the rear window.
It only works when the ignition is in ON/RUN.
<(Rear Window Defogger):Press to turn the rear
window defogger on or off.
The rear window defogger turns off several minutes
after the button is pressed. If turned on again, the
defogger will run for several more minutes before
turning off. The defogger can also be turned off by
turning off the engine.
Do not drive the vehicle until all the windows are clear.
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. Vehicles With Air Conditioning
3-20

R(Low):This position supplies the least amount of
heat to the rear-seating area.
9(Off):Turns the rear heating system off.
Rear Air Conditioning and Heating
System
For vehicles with a rear heating and air-conditioning
system, it maintains the temperature, fan speed and air
delivery for the rear-seat passengers only. It also works
with the main climate-control system in the vehicle.
Use this control panel to maintain a separate
temperature setting. Adjust the direction of the airflow
or adjust the fan speed for the rear seat passenger(s).A. Fan Control
B. Air Delivery Mode Control
C. Temperature Control
If the vehicle has a 135 inch (343 cm) wheelbase,
a rear control panel for this system is located in the
second row behind the driver in the rear of the vehicle.
The temperature, air delivery mode, and the fan speed
can be adjusted for the rear seating area by a rear seat
passenger.
AUX (Auxiliary):Turn the fan knob on the front climate
control panel to AUX to let rear seat passengers use
the control panel in the rear seating area. This disables
the front control panel. To return control to the front
panel, move the fan knob out of AUX.
9:Turns the system off. Front Climate Control Panel
Rear Climate Control Panel
3-22

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.
3-23

DRIVER DOOR OPEN
This message displays and a chime sounds if the driver
door is not fully closed and the vehicle is in a drive
gear. Stop and turn off the vehicle, check the door
for obstructions, and close the door again. Check
to see if the message still appears on the DIC.
ENGINE HOT A/C
(Air Conditioning) OFF
This message displays when the engine coolant
becomes hotter than the normal operating temperature.
SeeEngine Coolant Temperature Gage on page 3-33.
To avoid added strain on a hot engine, the air
conditioning compressor automatically turns off.
When the coolant temperature returns to normal,
the air conditioning compressor turns back on.
You can continue to drive your vehicle.
If this message continues to appear, have the system
repaired by your dealer/retailer as soon as possible
to avoid damage to the engine.
ENGINE OIL LOW ADD OIL
If your vehicle has an oil level sensor, this message
displays if the oil level in the vehicle is low. Check the
oil level and correct it as necessary. You may need to let
the vehicle cool or warm up and cycle the ignition to
be sure this message clears. SeeEngine Oil on
page 5-15for additional information.
ENGINE OVERHEATED IDLE ENGINE
Notice:If you drive your vehicle while the engine
is overheating, severe engine damage may occur.
If an overheat warning appears on the instrument
panel cluster and/or DIC, stop the vehicle as soon
as possible. SeeEngine Overheating on page 5-31
for more information.
This message displays when the engine coolant
temperature is too hot. Stop and allow the vehicle
to idle until it cools down. SeeEngine Coolant
Temperature Gage on page 3-33.
3-50

SERVICE A/C SYSTEM
This message displays when the electronic sensors that
control the air conditioning and heating systems are
no longer working. Have the climate control system
serviced by your dealer/retailer if you notice a drop
in heating and air conditioning efficiency.
SERVICE AIR BAG
This message displays if there is a problem with
the airbag system. Have your dealer/retailer inspect
the system for problems. SeeAirbag Readiness Light
on page 3-27andAirbag System on page 1-58for more
information.
SERVICE BATTERY CHARGING
SYSTEM
On some vehicles, this message displays if there is a
problem with the battery charging system. Under certain
conditions, the charging system light may also turn on in
the instrument panel cluster. SeeCharging System Light
on page 3-30. Driving with this problem could drain the
battery. Turn off all unnecessary accessories. Have the
electrical system checked as soon as possible. See your
dealer/retailer.
SERVICE BRAKE SYSTEM
This message displays along with the brake system
warning light if there is a problem with the brake system.
SeeBrake System Warning Light on page 3-31. If this
message appears, stop as soon as possible and turn
off the vehicle. Restart the vehicle and check for the
message on the DIC display. If the message is still
displayed or appears again when you begin driving,
the brake system needs service as soon as possible.
See your dealer/retailer.
SERVICE STABILITRAK
If your vehicle has StabiliTrak®and this message
displays, it means there may be a problem with the
StabiliTrak system. If you see this message, try to
reset the system. Stop; turn off the engine for at least
15 seconds; then start the engine again. If this message
still comes on, it means there is a problem. You should
see your dealer/retailer for service. The vehicle is safe to
drive, however, you do not have the benefit of StabiliTrak,
so reduce your speed and drive accordingly.
3-53