light CHEVROLET AVEO 2007 1.G Service Manual

Warning Lights, Gages, and
Indicators
This part describes the warning lights and gages on
your vehicle. The pictures help to locate them.
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 also
save you or others from injury.
Warning lights come on when there may be or is a
problem with one of your vehicle’s functions. As
the details show on the next few pages, some
warning lights come on briefly when you start the
engine just to let you know they are working. If
you are familiar with this section, you should
not be alarmed when this happens.
Gages can indicate when there may be or is a
problem with one of your vehicle’s functions. Often
gages and warning lights work together to let you
know when there is a problem with your vehicle.When one of the warning lights comes on and
stays on as you are driving, or when one of
the gages shows there may be a problem, check
the section that tells you what to do about it.
Please follow this manual’s advice. Waiting to do
repairs can be costly and even dangerous. So
please get to know your vehicle’s warning
lights and gages. They can be a big help.
Instrument Panel Cluster
Your instrument panel cluster is designed to let you
know at a glance how your vehicle is running. You
will know how fast you are going, how much fuel
you are using, and many other things you will need
to drive safely and economically.
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Your vehicle’s instrument panel cluster includes indicator warning lights and gages that are explained on
the following pages.
United States Hatchback shown, Canada Hatchback similar
157

Safety Belt Reminder Light
The safety belt light will
come on and stay on
until the driver’s
safety belt is buckled.
If the driver’s belt is already buckled, the light will
not come on.
Safety Belt Reminder Tone
If your vehicle has this feature, a tone will sound
for several seconds when the ignition is turned
to ON to remind people to fasten their safety belts.
The tone will not sound if the driver’s safety belt
is already buckled.
Airbag Readiness Light
There is an airbag readiness light on the
instrument panel cluster, which shows the airbag
symbol. The system checks the airbag’s
electrical system for malfunctions. The light tells
you if there is an electrical problem. The
system check includes the airbag sensor, the
airbag modules, the wiring and the crash sensing
and diagnostic module. For more information
on the airbag system, seeAirbag System
on page 68.
This light will come on
when you start your
vehicle, and it will flash
for a few seconds.
Then the light should go
out. This means the
system is ready.
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If the airbag readiness light stays on after you
start the vehicle or comes on when you are driving,
your airbag system may not work properly.
Have your vehicle serviced right away.
{CAUTION:
If the airbag readiness light stays on after
you start your vehicle, it means the airbag
system may not be working properly. The
airbags in your vehicle may not inate in
a crash, or they could even inate without
a crash. To help avoid injury to yourself
or others, have your vehicle serviced right
away if the airbag readiness light stays on
after you start your vehicle.
The airbag readiness light should flash for a few
seconds when you turn the ignition key to RUN. If
the light does not come on then, have it fixed
so it will be ready to warn you if there is a problem.
Passenger Airbag Status Indicator
(Sedan)
Your vehicle has a passenger airbag status
indicator.
If you have a sedan, the airbag off symbol will be
visible near the clock, located in the center of
the instrument panel, during the system check.
When the ignition key is turned to ON or START,
the passenger airbag status indicator will light
for several seconds as a system check. Then, after
several more seconds, if the off symbol is lit on
the passenger airbag status indicator, it means
that the passenger sensing system has turned off
the right front passenger’s frontal airbag and
side impact airbag (if equipped). SeePassenger
Sensing System on page 77for more on this,
including important safety information.
United States – SedanCanada – Sedan
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If the off symbol is not lit on the passenger airbag
status indicator, it means that the right front
passenger’s frontal airbag and side impact airbag
(if equipped) are enabled (may inflate).
{CAUTION:
If the off symbol in the passenger airbag
status indicator does not come on when
you have a rear-facing child restraint
installed in the right front passenger’s seat,
it means that the passenger sensing
system has not turned off the passenger’s
frontal airbag and side airbag (if equipped).
A child in a rear-facing child restraint can
be seriously injured or killed if the right
front passenger’s airbag or airbags inate.
This is because the back of the rear-facing
child restraint would be very close to the
inating airbag or airbags. Do not use a
rear-facing child restraint in the right front
passenger’s seat unless the airbag or
airbags have been turned off.
{CAUTION:
If the airbag readiness light in the
instrument panel cluster ever comes on
and stays on, it means that something
may be wrong with the airbag system. If
this ever happens, have the vehicle
serviced promptly, because an adult-size
person sitting in the right front
passenger’s seat may not have the
protection of the frontal airbag and side
airbag (if equipped). SeeAirbag
Readiness Light on page 176for more on
this, including important safety
information.
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Charging System Light
The charging system
light will come on briefly
when you turn on the
ignition, and the engine
is not running, as a
check to show you it is
working.
Then it should go out when the engine is started.
If it stays on, or comes on while you are driving,
you may have a problem with the electrical
charging system. Have it checked by your dealer.
Driving while this light is on could drain your
battery.
If you must drive a short distance with the light on,
be certain to turn off all your accessories, such
as the radio and air conditioner.
Brake System Warning Light
Your vehicle’s hydraulic brake system is divided
into two parts. If one part is not working, the other
part can still work and stop you. For good
braking, though, you need both parts working well.
If the warning light comes on, there is a brake
problem. Have your brake system inspected
right away.
When the ignition is on, the brake system warning
light will also come on when you set your parking
brake. The light will stay on if your parking brake
does not fully release. If it stays on after your
parking brake is fully released, it means you have
a brake problem.
Hatchback and Canada
SedanU.S. Sedan Only
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If the light comes on while you are driving, pull off
the road and stop carefully. You may notice that the
pedal is harder to push or the pedal may go closer
to the floor. It may take longer to stop. If the light is
still on, have the vehicle towed for service. See
Towing Your Vehicle on page 258.
{CAUTION:
Your brake system may not be working
properly if the brake system warning light
is on. Driving with the brake system
warning light on can lead to an accident.
If the light is still on after you have pulled
off the road and stopped carefully, have
the vehicle towed for service.
Anti-Lock Brake System Warning
Light
Your vehicle may have
the Anti-Lock Brake
System (ABS).
This light will come on when the ignition is turned
to ON and may stay on for several seconds.
That is normal.
If the light stays on, turn the ignition to LOCK. If
the light comes on, stop as soon as possible
and turn the ignition off. Then start the engine
again to reset the system. If the light still stays on,
or comes on again while you are driving, your
vehicle needs service. See your dealer/retailer.
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If the regular brake system warning light is not on,
you still have brakes, but you do not have
anti-lock brakes. If the regular brake system
warning light is also on, you do not have anti-lock
brakes and there is a problem with your regular
brakes. SeeBrake System Warning Light on
page 163.
The ABS warning light will come on briefly when
you turn the ignition to ON. This is normal. If
the light does not come on then, have it fixed so it
will be ready to warn you if there is a problem.
Hold Mode Light
If your vehicle has this
feature, this light will
come on when the hold
mode is active.
If the HOLD mode light flashes, have your vehicle
checked. See “Hold Mode” underAutomatic
Transaxle Operation on page 112for additional
information on this feature.
Engine Coolant Temperature Gage
United States HatchbackCanada Hatchback
United States SedanCanada Sedan
165

Your vehicle has an engine coolant temperature
gage. With the ignition turned to ON, this gage
shows the engine coolant temperature.
If the gage pointer moves into the red area, your
engine is too hot. It means that your engine
coolant has overheated.
If you have been operating your vehicle under
normal driving conditions, you should pull off the
road, stop your vehicle and turn off the engine
as soon as possible.
SeeEngine Overheating on page 290.
Malfunction Indicator Lamp
Check Engine Light
Your vehicle has a
computer which
monitors operation of
the fuel, ignition,
and emission control
systems.
This system is called OBD II (On-Board
Diagnostics-Second Generation) and is intended
to assure that emissions are at acceptablelevels for the life of the vehicle, helping to produce
a cleaner environment. The Check Engine light
comes on to indicate that there is a problem and
service is required. Malfunctions often will be
indicated by the system before any problem is
apparent. This may prevent more serious damage
to your vehicle. This system is also designed to
assist your service technician in correctly
diagnosing any malfunction.
Notice:If you keep driving your vehicle with
this light on, after awhile, the emission controls
might not work as well, your 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
your warranty.
Notice:Modications made to the engine,
transaxle, exhaust, intake, or fuel system
of your vehicle or replacement tires that do not
match your vehicle’s original tires can affect
your vehicle’s emission controls and may
cause this light to come on. Modications to
these systems could lead to costly repairs not
covered by your warranty. This may also
result in a failure to pass a required Emission
Inspection/Maintenance test. SeeAccessories
and Modifications on page 264.
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When the ignition is on, this light should come on
and should go out after a few seconds as a
check to show you it is working. If the light does
not come on, have it repaired.
This light will also come on during a malfunction in
one of two ways:
•Light Flashing— A misfire condition has
been detected. A misfire increases vehicle
emissions and may damage the emission
control system on your vehicle. Diagnosis
and service may be required.
•Light On Steady— An emission control
system malfunction has been detected on
your vehicle. Diagnosis and service may be
required.
If the Light Is Flashing
The following may prevent more serious damage
to your vehicle:
•Reducing vehicle speed
•Avoiding hard accelerations
•Avoiding steep uphill grades
If the light stops flashing and remains on steady,
see “If the Light Is On Steady” following.
If the light continues to flash, when it is safe to do
so, stop the vehicle. Find a safe place to park
your vehicle. Turn the key off, wait at least
10 seconds and restart the engine. If the light
remains on steady, see “If the Light Is On Steady”
following. If the light is still flashing, follow the
previous steps, and see your dealer for service as
soon as possible.
167