2004 CHEVROLET EPICA service

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.
This light should come on
briefly when you turn the
ignition to ON. If it does
not come on then, have
it fixed so it will be ready
to warn you if there is
a problem.
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.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 4-29.
{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.
3-35

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. 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 3-35.
The anti-lock brake system warning light will come on
briefly when you turn the ignition key 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.
Speed Sensitive Power Steering
(SSPS) Warning Light
This warning light will
come on briefly when
you turn the ignition
to ON as a check to
show you it is working.
Then it should go out after a few seconds.
If the warning light does not come on, have it fixed so
it will be able to warn you if there is a problem.
If the warning light stays on, or comes on while you are
driving, the SSPS system may not be working. If this
happens, see your dealer for service.
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Traction Control System (TCS)
Warning Light
If your vehicle has the
Traction Control System
(TCS), this light comes
on for a few seconds
when the ignition is
turned 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.The TCS warning light may also come on for the
following reasons:
•If you turn the system off by pressing the TCS button
located below the shift lever, the light will come on
and stay on. To turn the system back on, press the
button again and the warning light should go out.
•If there is a brake system problem that is specifically
related to traction control, the TCS will turn off and
the warning light will come on. If your brakes begin to
overheat, the TCS will turn off and the warning light
will come on until the brakes cool down.
If the TCS warning light comes on and stays on for an
extended period of time when the system is turned
on, there may be a problem with your TCS and your
vehicle needs service.
When the TCS warning light is on, the system will not
limit wheel spin. Adjust your driving accordingly.
3-37

Engine Coolant Temperature Gage
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 5-22.
Malfunction Indicator Lamp
Check Engine Light
Your vehicle is equipped
with 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 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.
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Notice:If you keep driving your vehicle with this
light on, after a while, 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.
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.
If the Light Is On Steady
You also may be able to correct the emission system
malfunction by considering the following:
3-40

Oil Pressure Light
If you have a low engine
oil pressure problem,
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.
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.
3-42

Daytime Running Lamps Indicator
Light
This light will come on
when the Daytime Running
Lamps (DRL) are on.
A flashing DRL light indicates a possible burned out
headlamp, or that the vehicle may need service to repair
a defective DRL relay.
See “Daytime Running Lamps (DRL)” underExterior
Lamps on page 3-13for further information on the
DRL system.
Fuel Gage
Your fuel gage tells
you about how much
fuel you have left when
the ignition is 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 3-45for more information.
3-44

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.
For your fuel tank’s capacity, seeCapacities and
Specifications on page 5-85.
Low Fuel Warning Light
This light comes on
when the fuel tank
is low on fuel.
The low fuel warning light comes on when there is
approximately 2.0 gallons (7.5 liters) of fuel remaining
in the tank.
To turn the light off, add fuel to the fuel tank. See
Filling Your Tank on page 5-7.
3-45