light CHEVROLET AVEO 2009 1.G Service Manual

Charging System Light
This light will come on briey when the ignition is turned
on, and the engine is not running, as a check to show
it is working.
It should go out when the engine is started. If it stays
on, or comes on while driving, there may have a problem
with the electrical charging system. Have it checked
by your dealer/retailer. Driving while this light is on could
drain the battery. If a short distance must be driven
with the light on, turn off all accessories, such as
the radio and air conditioner to help reduce the drain
on the battery.
Up-Shift Light
The vehicle may have an
up-shift light.
When this light comes on, shift to the next higher gear if
weather, road, and traffic conditions allow.
SeeManual Transmission Operation on page 2-26for
more information.
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 parts need to work.
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{CAUTION:
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.If the warning light comes on, there is a brake problem.
Have the brake system inspected right away.
When the ignition is on, the brake system warning light
will also come on when the parking brake is set.
The light will stay on if the parking brake does not fully
release. If it stays on after the parking brake is fully
released, it means there is a brake problem.
If the light comes on while driving, carefully pull off the
road and stop. The pedal may be harder to push or
may go closer to the oor. It may take longer to stop.
If the light is still on, have the vehicle towed for service.
SeeTowing Your Vehicle on page 4-24. United States
Canada
3-29

Antilock Brake System (ABS)
Warning Light
For vehicles with the
Antilock Brake System
(ABS), this light comes on
briey when the engine
is started.
If the light stays on, turn the ignition to LOCK/OFF or 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 driving, the vehicle needs service. See your
dealer/retailer. If the regular brake system warning
light is not on, the brakes will still work, but the antilock
brakes will not work. If the regular brake system
warning light is also on, the antilock brakes will not
work and there is a problem with the regular brakes.
SeeBrake System Warning Light on page 3-28.The ABS warning light will come on briey when the
ignition is turned to ON/RUN. This is normal. If the light
does not come on then, have it xed so it will be
ready to warn if there is a problem.
Hold Mode Light
If the vehicle has this
feature, this light comes on
when the hold mode is
active.
If the HOLD mode light ashes, have the vehicle
checked. See “Hold Mode” underAutomatic
Transmission Operation on page 2-22for more
information.
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Engine Coolant Temperature Gage
The vehicle has an engine coolant temperature gage.
With the ignition turned to ON/RUN, this gage shows the
engine coolant temperature.
If the gage pointer moves into the red area, the engine is
too hot. It means that the engine coolant has overheated.
If the vehicle has been operating under normal driving
conditions, pull off the road, stop the vehicle and turn off
the engine as soon as possible.
SeeEngine Overheating on page 5-30.
Tire Pressure Light
For vehicles with the tire
pressure light, it comes on
briey when the engine
is started.
It provides information about tire pressures and the
Tire Pressure Monitoring System.
When the Light is On Steady
This indicates that one or more of the tires are
signicantly underinated.
Stop and check the tires as soon as it is safe to do,
and inate them to the proper pressure. SeeTires on
page 5-51for more information.
When the Light Flashes First and Then is
On Steady
This indicates that there may be a problem with the Tire
Pressure Monitor System. The light ashes for about
a minute and then stays on steady for the remainder
of the ignition cycle. This sequence will repeat with every
ignition cycle. SeeTire Pressure Monitor System on
page 5-59for more information. United States
Canada
3-31

Malfunction Indicator Lamp
Check Engine Light
A computer system called OBD II (On-Board
Diagnostics-Second Generation) monitors operation of
the fuel, ignition, and emission control systems. It makes
sure that emissions are at acceptable levels for the life of
the vehicle, helping to produce a cleaner environment.
This light comes on when
the ignition is on, 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.
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. Heeding 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.
SeeAccessories and Modifications on page 5-3.
This light comes on during a malfunction in one of
two ways:
Light Flashing:A misre condition has been detected.
A misre increases vehicle emissions and could
damage the emission control system on the vehicle.
Diagnosis and service might be required.
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The following can prevent more serious damage to the
vehicle:
Reduce vehicle speed.
Avoid hard accelerations.
Avoid steep uphill grades.
If the light continues to ash, 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 ashing, follow the previous
steps and see your dealer/retailer for service as soon
as possible.
Light On Steady:An emission control system
malfunction has been detected on the vehicle.
Diagnosis and service might be required.
An emission system malfunction might be corrected by
doing the following:
Make sure the fuel cap is fully installed. SeeFilling
the Tank on page 5-8. The diagnostic system can
determine if the fuel cap has been left off or
improperly installed. A loose or missing fuel cap
allows fuel to evaporate into the atmosphere. A few
driving trips with the cap properly installed should
turn the light off.
If the vehicle has been driven through a deep
puddle of water, the vehicle’s electrical system
might be wet. The condition is usually corrected
when the electrical system dries out. A few driving
trips should turn the light off.
Make sure to fuel the vehicle with quality fuel.
Poor fuel quality causes the engine not to run
as efficiently as designed and may cause: stalling
after start-up, stalling when the vehicle is changed
into gear, misring, hesitation on acceleration,
or stumbling on acceleration. These conditions
might go away once the engine is warmed up.
If one or more of these conditions occurs, change
the fuel brand used. It will require at least one
full tank of the proper fuel to turn the light off.
SeeGasoline Octane on page 5-5.
If none of the above have made the light turn off, have
your dealer/retailer check the vehicle. The dealer/retailer
has the proper test equipment and diagnostic tools to
x any mechanical or electrical problems that might have
developed.
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Emissions Inspection and
Maintenance Programs
Some state/provincial and local governments have or
might begin programs to inspect the emission control
equipment on the vehicle. Failure to pass this inspection
could prevent getting a vehicle registration.
Here are some things to know to help the vehicle pass
an inspection:
The vehicle will not pass this inspection if the check
engine light is on with the engine running, or if the
key is in the ON/RUN and the light is not on.
The vehicle will not pass this inspection if the
OBD II (on-board diagnostic) system determines
that critical emission control systems have not been
completely diagnosed by the system. The vehicle
would be considered not ready for inspection.
This can happen if the battery has recently been
replaced or if the battery has run down.
The diagnostic system is designed to evaluate
critical emission control systems during normal
driving. This can take several days of routine
driving. If this has been done and the vehicle still
does not pass the inspection for lack of OBD II
system readiness, your dealer/retailer can prepare
the vehicle for inspection.
Oil Pressure Light
If the vehicle has low
engine oil pressure, this
light will stay on after
the engine is started, or
come on while driving.
This indicates that the engine is not receiving enough
oil. The engine could be low on oil, or could have some
other oil problem. Have it xed immediately by your
dealer/retailer.
The oil light could also come on in three other situations:
When the ignition is on but the engine is not
running, the light will come on as a test to show it is
working. The light will go out when the ignition is
turned on. If it does not come on with the ignition
on, there may be a problem with the fuse or
bulb. Have it xed right away.
If the vehicle comes to a hard stop, the light may
come on for a moment. This is normal.
3-34

{CAUTION:
Do not keep driving if the oil pressure is low.
The engine can become so hot that it catches re.
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.
Change Engine Oil Light
The vehicle may have an
engine oil life system that
indicates when the oil
needs to be changed.
When the change engine oil light comes on, it means
that the engine oil needs to be changed.Once the engine oil has been changed, the engine oil
life system must be reset. After reset, the change engine
oil light goes out.
SeeEngine Oil Life System on page 5-18,Scheduled
Maintenance on page 6-4andEngine Oil on page 5-16
for more information.
Fog Lamp Light
For vehicles with this
feature, the fog lamps light
will come on when the
fog lamps are in use.
The light will go out when the fog lamps are turned off.
SeeFog Lamps on page 3-15for more information.
3-35

Cruise Control Light
If the vehicle has cruise
control, this light comes on
whenever the cruise
control is set.
The light will go out when the cruise control is turned
off. SeeCruise Control on page 3-10for more
information.
Highbeam On Light
This light comes on when
the high-beam headlamps
are in use.
SeeHeadlamp High/Low-Beam Changer on page 3-8
for more information.
Daytime Running Lamps (DRL)
Indicator Light
This light turns on
whenever the Daytime
Running Lamps are on.
SeeDaytime Running Lamps (DRL) on page 3-14for
more information.
Door Ajar Light
The door ajar light comes
on and stays on until all
doors, trunk and liftgate
are closed and completely
latched.
If the key is in the ignition while the driver’s door is
open, a warning chime also sounds.
3-36

Fuel Gage
The fuel gage indicates about how much fuel is left
when the ignition is turned to ON/RUN.
When the tank nears empty, the low fuel warning
light will come on. There is still a little fuel left,
but the vehicle’s fuel tank should be lled soon.
SeeLow Fuel Warning Light on page 3-38for more
information.
An arrow on the fuel gage indicates the side of the
vehicle the fuel door is located.Here are four things that some owners ask about.
None of these show a problem with the fuel gage:
At the service station, the gas pump shuts off before
the gage reads full.
It takes a little more or less fuel to ll up than the
gage indicated. For example, the gage may have
indicated the tank was half full, but it actually took a
little more or less than half the tank’s capacity to
ll the tank.
The indicator moves a little when turning a corner
or speeding up.
The gage goes back to empty when the ignition is
turned off. United StatesCanada
3-37