ignition CHEVROLET AVEO 2002 Service Manual Online

{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 3-32for more on this, including important
safety information.
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.
3-27

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. SeeTowing
Your Vehicle on page 4-34.
{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.
Engine Coolant Temperature Gage
Your vehicle has an engine coolant temperature gage.
With the ignition 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 5-24. United States
Canada
3-28

Fuel Gage
Your fuel gage tells you about how much fuel you have
left when the ignition is turned to ON.
When the tank nears empty, the low fuel warning light
will come on. You still have a little fuel left, but you
should get more soon. SeeLow Fuel Warning Light on
page 3-30for more information.Here are four things that some owners ask about. None
of these show a problem with your 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 fill 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
fill the tank.
•The indicator moves a little when you turn a corner
or speed up.
•The gage goes back to empty when you turn off the
ignition.
Low Fuel Warning Light
This light comes on when
the vehicle is low on fuel.
The low fuel warning light comes on when there is
approximately 1.7 gallons (6.0 liters) of fuel remaining in
the tank.
To turn the light off, add fuel to the fuel tank. SeeFilling
the Tank on page 5-7. United States
Canada
3-30

Clock
Your vehicle has a digital clock. The clock is located in
the secondary instrument cluster on the center of
the instrument panel, above the center air outlets. When
the ignition is turned to ACC or ON, the time is
displayed in the digital clock. There are two adjusting
buttons for the digital clock:
H (Hour):To go forward one hour, press the H button
once. To go forward more than one hour, press and hold
the button until the correct hour is reached.
M (Minute):To go forward one minute, press the
M button once. To go forward more than one minute,
press and hold the button until the correct minute
is reached.
After disconnecting the battery or replacing the fuse,
reset the clock.
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.
Airbag Readiness Light
There is an airbag readiness light on the secondary
information center (SIC), 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 1-56.
3-32

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.
If the airbag readiness light stays on after you start the
vehicle or comes on or flashes when you are driving,
your airbag system may not work properly. Have
your vehicle serviced right away by your GM dealer.
{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 to ON. If the light
does not come on then, have it fixed so it will be ready
to warn you if there is a problem.
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 GM 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.
3-33

Anti-Lock Brake System Warning
Light
If your vehicle has an
anti-lock brake system, 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. 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 you are driving, your vehicle needs service. See
your GM dealer. 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. See
Brake System Warning Light on page 3-27.
The anti-lock brake system 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 2-21for additional information
on this feature.
Malfunction Indicator Lamp
Check Engine Light
Your vehicle has a
computer which monitors
operation of the fuel,
ignition, and emission
control systems.
3-34

This system is called OBD II (On-Board
Diagnostics-Second Generation) and is intended to
assure that emissions are at acceptable levels 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, your emission controls
may not work as well, your fuel economy may not
be as good, and your engine may not run as
smoothly. This could lead to costly repairs that may
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. See
Accessories and Modifications on page 5-3.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.
3-35

Your vehicle will not pass this inspection if the OBD
(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 you have recently replaced your battery or if your
battery has run down. The diagnostic system is
designed to evaluate critical emission control systems
during normal driving. This may take several days
of routine driving. If you have done this and your vehicle
still does not pass the inspection for lack of OBD
system readiness, your GM dealer can prepare the
vehicle for inspection.
Oil Pressure Light
If you have low engine oil
pressure, this light will stay
on after you start your
engine, or come on when
you are driving.
This indicates that your engine is not receiving enough
oil. The engine could be low on oil, or could have
some other oil problem. Have it fixed immediately by
your GM dealer.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 you
it is working. The light will go out when you turn
the ignition on. If it does not come on with the
ignition on, you may have a problem with the fuse
or bulb. Have it fixed right away.
•If you are idling at a stop sign, the light may blink
on and then off.
•If you make a hard stop, the light may come on for
a moment. This is normal.
{CAUTION:
Do not keep driving if the oil pressure is low. If
you do, your engine can become so hot that it
catches re. You or others could be burned.
Check your oil as soon as possible and have
your vehicle serviced.
Notice:Lack of proper engine oil maintenance may
damage the engine. The repairs would not be covered
by your warranty. Always follow the maintenance
schedule in this manual for changing engine oil.
3-37

Fog Lamp Light
If your vehicle has 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.
Door Ajar Light
The door ajar light will
come on whenever a door
is opened, regardless
of the ignition position.
If the key is in the ignition while the driver’s door is
open, you will also hear a warning chime.
Audio System(s)
Determine which radio your vehicle has and then read the
pages following to familiarize yourself with its features.
Driving without distraction is a necessity for a safer
driving experience. SeeDefensive Driving on page 4-2.
By taking a few moments to read this manual and
get familiar with your vehicle’s audio system, you can
use it with less effort, as well as take advantage of
its features. While your vehicle is parked, set up your
audio system by presetting your favorite radio stations,
setting the tone and adjusting the speakers. Then,
when driving conditions permit, you can tune to your
favorite stations using the presets and steering
wheel controls if the vehicle has them.
{CAUTION:
This system provides you with a far greater
access to audio stations and song listings.
Giving extended attention to entertainment
tasks while driving can cause a crash and you
or others can be injured or killed. Always keep
your eyes on the road and your mind on the
drive — avoid engaging in extended searching
while driving.
3-38

Adjusting the Speakers (Balance/Fade)
SOUND (Balance/Fade):To adjust the balance
between the right and the left speakers, press this button
until BAL appears on the display. Then turn the
volume knob to increase or to decrease. The display will
show the balance level. When finished making the
selection, press this button to select the balance level.
To adjust the fade between the front and the rear
speakers, press this button until FAD appears on the
display. Turn the volume knob to increase or to
decrease the fade between the front and the rear
speakers. The display will show the fade level. When
finished making the selection, press this button to select
the fade level.
Playing a CD
Insert a CD partway into the slot, label side up. The
player will pull it in and the CD should begin playing.
You can insert a CD with the ignition off.
When the CD is inserted, CDP will appear on the
display. As the CD is loading Filecheck will appear on
the display. As each new track starts to play, Track and
the track number will appear on the display.If the ignition or radio is turned off with a CD in the
player, it will stay in the player. When a CD is in
the player and the ignition is turned on, the radio must
be turned on before the CD will start playback. When
the ignition and radio are turned on, the CD will
start playing where it stopped, if it was the last selected
audio source.
The CD player can play the smaller 3 inch (8 cm) single
CDs with an adapter ring. Full-size CDs and the
smaller CDs are loaded in the same manner.
If playing a CD-R, the sound quality may be reduced
due to CD-R quality, the method of recording, the quality
of the music that has been recorded, and the way the
CD-R has been handled. There may be an increase
in skipping, difficulty in finding tracks, and/or difficulty in
loading and ejecting. If these problems occur, check
the bottom surface of the CD. If the surface of the CD is
damaged, such as cracked, broken, or scratched, the
CD will not play properly. If the surface of the CD
is soiled, seeCare of Your CDs on page 3-71for more
information.
If there is no apparent damage, try a known good CD.
3-43