air condition CHEVROLET EXPRESS 2007 User Guide

N (Neutral):In this position, the engine does not
connect with the wheels. To restart when you are
already moving, use N (Neutral) only. Also, use
N (Neutral) when the vehicle is being towed.
{WARNING:
Shifting into a drive gear while the engine is
running at high speed is dangerous. Unless your
foot is firmly on the brake pedal, the vehicle could
move very rapidly. You could lose control and hit
people or objects. Do not shift into a drive gear
while the engine is running at high speed.
Notice:Shifting out of P (Park) or N (Neutral) with
the engine running at high speed may damage
the transmission. The repairs would not be covered
by the vehicle warranty. Be sure the engine is
not running at high speed when shifting the vehicle.D (Drive):This position is for normal driving. It provides
the best fuel economy. If you need more power for
passing, and you are:
•Going less than about 35 mph (55 km/h), push the
accelerator pedal about halfway down.
•Going about 35 mph (55 km/h) or more, push the
accelerator all the way down.
By doing this, the vehicle shifts down to the next
gear and has more power.
D (Drive) can be used when towing a trailer, carrying a
heavy load or driving on steep hills. You might want
to shift the transmission to a lower gear selection if the
transmission shifts too often.
Downshifting the transmission in slippery road conditions
could result in skidding. See Skidding underLoss of
Control on page 5-10.
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To use this feature, do the following:
1. Move the shift lever to M (Manual Mode).
2. Press the plus/minus buttons, located on the
steering column shift lever, to select the desired
range of gears for current driving conditions.
When M (Manual Mode) is selected a number displays
in the DIC next to the M indicating the current gear.
This number is the highest gear that can be used.
However, the vehicle can automatically shift to lower
gears as it adjusts to driving conditions. This means that
all gears below that number are available. When
5 (Fifth) is selected, 1 (First) through 5 (Fifth) gears are
automatically shifted by the vehicle, but 6 (Sixth)
cannot be used until the plus/minus button located on
the steering column lever is used to change to the gear.
Grade Braking is not available when Range Selection
Mode is active. SeeTow/Haul Mode on page 3-34.While using Range Selection Mode, cruise control and
the Tow/Haul mode can be used.
Notice:Spinning the tires or holding the vehicle in
one place on a hill using only the accelerator
pedal may damage the transmission. The repair will
not be covered by the vehicle warranty. If you
are stuck, do not spin the tires. When stopping on a
hill, use the brakes to hold the vehicle in place.
Low Traction Mode
Low Traction Mode can assist in vehicle acceleration
when road conditions are slippery. While the vehicle is at
a stop, select the second gear range using Range
Selection Mode. This will limit torque to the wheels after
it detects wheel slip, preventing the tires from spinning.
3-31

R (Reverse):Use this gear to back up.
Notice:Shifting to R (Reverse) while the vehicle is
moving forward could damage the transmission.
The repairs would not be covered by the vehicle
warranty. Shift to R (Reverse) only after the vehicle
is stopped.
To rock the vehicle back and forth to get out of snow,
ice or sand without damaging the transmission, see
If Your Vehicle is Stuck in Sand, Mud, Ice, or Snow on
page 5-18.
N (Neutral):In this position, the engine does not
connect with the wheels. To restart the engine when the
vehicle is already moving, use N (Neutral) only. Also,
use N (Neutral) when the vehicle is being towed.
{WARNING:
Shifting into a drive gear while the engine is
running at high speed is dangerous. Unless your
foot is firmly on the brake pedal, the vehicle could
move very rapidly. You could lose control and hit
people or objects. Do not shift into a drive gear
while the engine is running at high speed.Notice:Shifting out of P (Park) or N (Neutral) with
the engine running at high speed may damage
the transmission. The repairs would not be covered
by the vehicle warranty. Be sure the engine is
not running at high speed when shifting the vehicle.
D (Drive):This position is for normal driving. It
provides the best fuel economy. If you need more
power for passing, and you are:
•Going less than about 35 mph (55 km/h), push the
accelerator pedal about halfway down.
•Going about 35 mph (55 km/h) or more, push the
accelerator all the way down.
You will shift down to the next gear and have more
power.
Downshifting the transmission in slippery road conditions
could result in skidding, see “Skidding” underLoss of
Control on page 5-10.
3 (Third):This position is also used for normal driving.
However it reduces vehicle speed more than D (Drive)
without using the brakes. You might choose 3 (Third)
instead of D (Drive) when driving on hilly, winding roads,
when towing a trailer, so there is less shifting between
gears and when going down a steep hill.
You should use 3 (Third) (or a lower gear as needed)
when towing a trailer to minimize heat build-up and
extend the life of the transmission.
3-33

Instrument Panel Overview...............................4-3
Hazard Warning Flashers................................4-3
Horn .............................................................4-3
Tilt Wheel.....................................................4-3
Turn Signal/Multifunction Lever.........................4-4
Turn and Lane-Change Signals........................4-4
Headlamp High/Low-Beam Changer..................4-5
Flash-to-Pass.................................................4-5
Windshield Wipers..........................................4-5
Windshield Washer.........................................4-6
Cruise Control................................................4-6
Exterior Lamps...............................................4-9
Headlamps on Reminder................................4-10
Daytime Running Lamps (DRL).......................4-10
Automatic Headlamp System..........................4-11
Instrument Panel Brightness...........................4-11
Dome Lamps ...............................................4-12
Dome Lamp Override....................................4-12
Entry/Exit Lighting.........................................4-13
Reading Lamps............................................4-13
Electric Power Management...........................4-13
Battery Run-Down Protection..........................4-14
Accessory Power Outlet(s).............................4-14
Ashtray(s) and Cigarette Lighter......................4-15Climate Controls............................................4-15
Climate Control System.................................4-15
Outlet Adjustment.........................................4-17
Rear Heating System....................................4-18
Rear Air Conditioning and Heating System.......4-18
Warning Lights, Gages, and Indicators............4-20
Instrument Panel Cluster................................4-21
Speedometer and Odometer...........................4-22
Trip Odometer..............................................4-22
Safety Belt Reminders...................................4-22
Airbag Readiness Light
..................................4-23
Airbag Off Light............................................4-24
Passenger Airbag Status Indicator...................4-25
Charging System Light..................................4-26
Voltmeter Gage............................................4-27
Brake System Warning Light..........................4-27
Antilock Brake System (ABS) Warning Light.....4-28
StabiliTrak
®Indicator Light.............................4-29
Engine Coolant Temperature Gage..................4-29
Tire Pressure Light.......................................4-30
Malfunction Indicator Lamp.............................4-30
Oil Pressure Gage........................................4-33
Oil Pressure Light.........................................4-34
Section 4 Instrument Panel
4-1

Ashtray(s) and Cigarette Lighter
For vehicles with an ashtray it is located in the center
console or on the instrument panel. Pull up on the
ashtray door to open it if it is in the console or pull the
door open it if it is on the instrument panel.
Notice:If papers, pins, or other ammable items
are put in the ashtray, hot cigarettes or other
smoking materials could ignite them and possibly
damage the vehicle. Never put ammable items
in the ashtray.
To remove the ashtray, pull it out from the console or
from the slide out door. To reinstall the ashtray,
slide it back to the original position.
To use the cigarette lighter, if the vehicle has one, push
it in all the way, and let go. When it is ready for use,
it will pop back out by itself.
Do not use the lighter to plug in accessory devices.
Use the power outlets provided.
Notice:Holding a cigarette lighter in while it is
heating does not let the lighter back away from the
heating element when it is hot. Damage from
overheating can occur to the lighter or heating
element, or a fuse could be blown. Do not hold a
cigarette lighter in while it is heating.
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.Vehicles Without Air Conditioning
4-15

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.A. Fan Control
B. Temperature ControlC. Air Delivery Mode Control
D. Rear Window Defogger
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.Vehicles With Air Conditioning
4-16

Rear Heating System
For vehicles with a rear heating system, it lets you adjust
the amount of air flowing into the rear of the vehicle, from
the front-seating area. This feature works with the main
climate-control system in the vehicle.
AUX:The thumbwheel for this system is located in the
switchbank below the audio system.
9(Fan):Turn the thumbwheel up or down to increase
or decrease the amount of heated air sent to the
rear-seating area.
Q(High):This position supplies the most amount of
heat to the rear-seating area.
c(Medium):This position supplies half the amount of
heat to the rear-seating area.
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.
4-18

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 ControlIf the vehicle has a 343 cm (135 inch) 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.
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. Front Climate Control Panel
Rear Climate Control Panel
4-19

If the word OFF or the off symbol is lit on the airbag
status indicator, it means that the passenger sensing
system has turned off the right front passenger
frontal airbag.
If, after several seconds, both status indicator lights
remain on, or if there are no lights at all, there may be a
problem with the lights or the passenger sensing
system. See your dealer/retailer for service.
{WARNING:
If the airbag readiness light ever comes on and
stays on, it means that something may be wrong
with the airbag system. To help avoid injury to
yourself or others, have the vehicle serviced right
away. SeeAirbag Readiness Light on page 4-23
for more information, including important safety
information.
Charging System Light
This light comes on briefly
when the ignition key is
turned to START, but
the engine is not running,
as a check to show it
is working.
If it does not, have the vehicle serviced by your
dealer/retailer.
The light should go out once the engine starts. If it stays
on, or comes on while driving, there could be a
problem with the charging system. A charging system
message in the Driver Information Center (DIC) can also
appear. SeeDIC Warnings and Messages on page 4-44
for more information. This light could indicate that
there are problems with a generator drive belt, or that
there is an electrical problem. Have it checked right
away. If the vehicle must be driven a short distance with
the light on, turn off accessories, such as the radio
and air conditioner.
4-26

If the check engine light comes on and stays on, while
the engine is running, this indicates that there is an
OBD II problem and service is required.
Malfunctions often are indicated by the system before
any problem is apparent. Being aware of the light
can prevent more serious damage to the vehicle. This
system assists the service technician in correctly
diagnosing any malfunction.
Notice:If the vehicle is continually driven with this
light on, after a while, the emission controls
might not work as well, the vehicle’s fuel economy
might not be as good, and the engine might not
run as smoothly. This could lead to costly repairs
that might not be covered by the vehicle warranty.
Notice:Modications made to the engine,
transmission, exhaust, intake, or fuel system of the
vehicle or the replacement of the original tires
with other than those of the same Tire Performance
Criteria (TPC) can affect the vehicle’s emission
controls and can cause this light to come on.
Modications to these systems could lead to costly
repairs not covered by the vehicle warranty. This
could also result in a failure to pass a required
Emission Inspection/Maintenance test. See
Accessories and Modifications on page 6-3.This light comes on during a malfunction in one of
two ways:
Light Flashing:A misfire condition has been detected.
A misfire increases vehicle emissions and could
damage the emission control system on the vehicle.
Diagnosis and service might be required.
To prevent more serious damage to the vehicle:
•Reduce vehicle speed.
•Avoid hard accelerations.
•Avoid steep uphill grades.
•If towing a trailer, reduce the amount of cargo being
hauled as soon as it is possible.
If the light continues to flash, when it is safe to do so,
stop the vehicle. Find a safe place to park the vehicle.
Turn the key off, wait at least 10 seconds, and restart
the engine. If the light is still flashing, follow the previous
steps and see your dealer/retailer for service as soon
as possible.
4-31