warning light CHEVROLET EXPRESS 2010 Owner's Guide

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 2-70for more information, including
important safety information.{WARNING:
If the right front passenger’s airbag is turned off
for a person who is not in a risk group identified
by the national government, that person will not
have the extra protection of an airbag. In a crash,
the airbag will not be able to inflate and help
protect the person sitting there.
Do not turn off the passenger’s airbag unless the
person sitting there is in a risk group identified by
the national government. SeeAirbag Off Switch on
page 2-70for more on this, including important
safety information.
United States
Canada
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{WARNING:
If the airbag readiness light ever comes on and
stays on, it means that something may be wrong
with the airbag system. For example, the right
front passenger airbag could inflate even though
the airbag on-off switch is turned off.
To help avoid injury to yourself or others, have the
vehicle serviced right away. SeeAirbag Readiness
Light on page 4-23for more information, including
important safety information.
If the word ON or the on symbol is lit, it means that the
right front passenger frontal airbag is enabled (may
inflate). SeeAirbag Off Switch on page 2-70for more
information, including important safety information.
Passenger Airbag Status Indicator
If the vehicle has a passenger sensing system, the
instrument panel will have a passenger airbag status
indicator. SeePassenger Sensing System on page 2-73
for important safety information. The instrument panel
has a passenger airbag status indicator.
When the vehicle is started, the passenger airbag status
indicator will light ON and OFF, or the symbol for on
and off, for several seconds as a system check. Then,
after several more seconds, the status indicator will
light either ON or OFF, or either the on or off symbol to
let you know the status of the right front passenger
frontal airbag.
If the word ON or the on symbol is lit on the passenger
airbag status indicator, it means that the right front
passenger frontal airbag is enabled (may inflate).United States
Canada
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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.
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Voltmeter Gage
When the engine is not
running, but the ignition is
on, this gage shows
the battery’s state of
charge in DC volts.
When the engine is running, the gage shows the
condition of the charging system. Readings between the
low and high warning zones indicate the normal
operating range.
Readings in the low warning zone may occur when a
large number of electrical accessories are operating in
the vehicle and the engine is left at an idle for an
extended period. This condition is normal since the
charging system is not able to provide full power
at engine idle. As engine speeds are increased, this
condition should correct itself as higher engine speeds
allow the charging system to create maximum power.The vehicle can be only driven for a short time with the
reading in either warning zone. If it must be driven,
turn off all unnecessary accessories.
Readings in either warning zone indicate a possible
problem in the electrical system. Have the vehicle
serviced as soon as possible.
Brake System Warning Light
The vehicle’s hydraulic brake system is divided into
two parts. If one part is not working, the other part can
still work and stop the vehicle. For good braking,
both need to work.
If the warning light comes on, there could be a brake
problem. Have the brake system inspected right away.
This light should come on briefly when ignition key is
turned to ON/RUN. If it does not come on, have it fixed
so it will be ready to warn if there is a problem.
United StatesCanada
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When the ignition is on, the brake system warning light
also comes on when the parking brake is set. See
Parking Brake on page 3-36for more information. The
light stays on if the parking brake does not fully release.
If it stays on after the parking brake is fully released,
it means the vehicle has a brake problem.
If the light comes on while driving, pull off the road and
stop carefully. The pedal might be harder to push, or
the pedal might go closer to the floor. It could take
longer to stop. If the light is still on, have the vehicle
towed for service. SeeTowing Your Vehicle on
page 5-26.
{WARNING:
The brake system might not be working properly if
the brake system warning light is on. Driving with
the brake system warning light on can lead to a
crash. If the light is still on after the vehicle has
been pulled off the road and carefully stopped,
have the vehicle towed for service.
Antilock Brake System (ABS)
Warning Light
For vehicles with the
Antilock Brake System
(ABS), this light comes on
briefly when the engine
is started.
If it does not, have the vehicle serviced by your
dealer/retailer. If the system is working normally the
indicator light then goes off.
If the ABS light stays on, turn the ignition off. If the light
comes on while driving, stop as soon as it is safely
possible and turn the ignition off. Then start the engine
again to reset the system. If the ABS light stays on,
or comes on again while driving, the vehicle needs
service. If the regular brake system warning light is not
on, the vehicle still has brakes, but not antilock
brakes. If the regular brake system warning light is also
on, the vehicle does not have antilock brakes and
there is a problem with the regular brakes. SeeBrake
System Warning Light on page 4-27.
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For vehicles with a Driver Information Center (DIC), see
DIC Warnings and Messages on page 4-44for all
brake related DIC messages.
StabiliTrak®Indicator Light
For vehicles with the
StabiliTrak®system,
this light comes on or
flashes, according to the
description table for
the StabiliTrak system.
For more information, seeStabiliTrak
®System on
page 5-5.
Three chimes sound if the light turns on and one chime
if the light turns off.
If this light remains on steady, the vehicle needs to be
taken in for service.
Engine Coolant Temperature Gage
This gage shows the engine coolant temperature.
It also provides an indicator of how hard the vehicle is
working. During a majority of the operation, the gage will
read 100°C (210°F) or less. If the vehicle is pulling a load
or going up hills, it is normal for the temperature to
fluctuate and approach the 122°C (250°F) mark. If the
gage reaches the 125°C (260°F) mark, it indicates that
the cooling system is working beyond its capacity.
SeeEngine Overheating on page 6-35.
United StatesCanada
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Oil Pressure Light
{WARNING:
Do not keep driving if the oil pressure is low. The
engine can become so hot that it catches fire.
Someone could be burned. Check the oil as soon
as possible and have the vehicle serviced.
Notice:Lack of proper engine oil maintenance can
damage the engine. The repairs would not be
covered by the vehicle warranty. Always follow the
maintenance schedule in this manual for changing
engine oil.This light comes on briefly while starting the engine.
If it does not, have the vehicle serviced by your
dealer/retailer. If the system is working normally the
indicator light then goes off.
If the light comes on and stays on, it means that oil is
not flowing through the engine properly. The vehicle
could be low on oil and it might have some other system
problem.
Security Light
For information regarding
this light and the vehicle’s
security system, see
PASS-Key
®III+ Electronic
Immobilizer Operation
on page 3-20.
4-34

DIC Warnings and Messages
Messages are displayed on the DIC to notify the driver
that the status of the vehicle has changed and that some
action may be needed by the driver to correct the
condition. Multiple messages may appear one after
another.
Some messages may not require immediate action, but
you can press any of the DIC buttons on the instrument
panel to acknowledge that you received the messages
and to clear them from the display.
Some messages cannot be cleared from the DIC display
because they are more urgent. These messages require
action before they can be cleared. You should take any
messages that appear on the display seriously and
remember that clearing the messages will only make the
messages disappear, not correct the problem.
The following are the possible messages that can be
displayed and some information about them.
If your vehicle has the DURAMAX
®Diesel engine, see
the DURAMAX®Diesel manual for more information.
AUTOMATIC LIGHT CONTROL OFF
This message displays when the automatic headlamps
are turned off. SeeExterior Lamps on page 4-9for
more information.
AUTOMATIC LIGHT CONTROL ON
This message displays when the automatic headlamps
are turned on. SeeExterior Lamps on page 4-9for
more information.
CALIBRATING: DRIVE IN CIRCLES
This message displays when calibrating the compass.
Drive the vehicle in circles at less than 8 km/h (5 mph) to
complete the calibration. SeeDIC Compass on
page 4-42for more information.
CALIBRATION COMPLETE
This message displays when the compass calibration is
complete. SeeDIC Compass on page 4-42for more
information.
CARGO DOOR OPEN
This message displays and a chime sounds if the cargo
door is open while the ignition is in ON/RUN. Turn off
the vehicle and check the cargo door. Restart the
vehicle and check for the message on the DIC display.
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CHANGE ENGINE OIL SOON
This message displays when the engine oil needs to be
changed. When you change the engine oil, be sure
to reset the CHANGE ENGINE OIL SOON message.
SeeEngine Oil Life System on page 6-18for information
on how to reset the message. SeeEngine Oil on
page 6-15andScheduled Maintenance on page 7-3for
more information.
CHECK TIRE PRESSURE or TIRE LOW
ADD AIR TO TIRE
If your vehicle has the Tire Pressure Monitor
System (TPMS), this message displays when the
pressure in one or more of the vehicle’s tires is low.
The low tire pressure warning light will also come on.
SeeTire Pressure Light on page 4-30. This message will
also indicate which tire needs to be checked. You can
receive more than one tire pressure message at a time.
To read the other messages that may have been sent
at the same time, press the set/reset button. If a tire
pressure message appears on the DIC, stop as soon as
you can. Have the tire pressures checked and set to
those shown on the Tire Loading Information label.
SeeTires on page 6-60,Loading the Vehicle on
page 5-19, andInation - Tire Pressure on page 6-68.
The DIC also shows the tire pressure values. SeeDIC
Operation and Displays on page 4-37.
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 4-29.
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.
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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 4-27. 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.
SERVICE THEFT DETERRENT SYSTEM
This message displays when there is a problem with the
theft-deterrent system. The vehicle may or may not
restart so you may want to take the vehicle to your
dealer/retailer before turning off the engine. See
PASS-Key
®III+ Electronic Immobilizer Operation on
page 3-20for more information.
SERVICE TIRE MONITOR SYSTEM
If your vehicle has the Tire Pressure Monitor
System (TPMS), this message displays if a part on
the system is not working properly. The tire pressure
light also flashes and then remains on during the same
ignition cycle. SeeTire Pressure Light on page 4-30.
Several conditions may cause this message to appear.
SeeTire Pressure Monitor Operation on page 6-72
for more information. If the warning comes on and stays
on, there may be a problem with the TPMS. See your
dealer/retailer.
SERVICE TRACTION CONTROL
If your vehicle has StabiliTrak, this message displays
when there is a problem with the Traction Control
System (TCS). When this message displays, the system
will not limit wheel spin. Adjust your driving accordingly.
See your dealer/retailer for service. SeeStabiliTrak
®
System on page 5-5for more information.
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