light CHEVROLET OPTRA 5 2007 1.G Service Manual

Your vehicle’s instrument panel cluster includes indicator warning lights and gages that are explained on
the following pages.
Uplevel shown, Base similar
162

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 66.
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.
164

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 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.
Passenger Airbag Status Indicator
Your vehicle has a passenger airbag status
indicator in the clock, located in the center of the
instrument panel.
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 seat-mounted side impact airbag
(if equipped). SeePassenger Sensing System
on page 76for more on this, including important
safety information.
165

{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 164
for more on this, including important safety
information.
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.
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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 241.
{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.
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Anti-Lock Brake System
Warning Light
If your vehicle has an
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. 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 168.
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.
169

Speed Sensitive Power
Steering (SSPS) Warning Light
If your vehicle has
Speed Sensitive Power
Steering, 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 system may not be working.
If this happens, see your dealer for service.
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 110for additional
information on this feature.
170

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 271.
Tire Pressure Light
This light comes on
briefly when you turn
the ignition to RUN.
This light will also come on when one or more of
your tires are significantly underinflated.
Stop and check your tires as soon as it is safe to
do so. If underinflated, inflate to the proper
pressure. SeeTires on page 303for more
information.
This light will flash for about 75 seconds and then
stay on if a problem is detected with the Tire
Pressure Monitor system.
SeeTire Pressure Monitor System on page 312
for more information.
171

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 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, 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 249.
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.
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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:
Did you recently put fuel into your vehicle?
If so, reinstall the fuel cap, making sure to fully
install the cap. SeeFilling the Tank on page 254.
The diagnostic system can determine if the
fuel cap has been left off or improperly installed.
A loose or missing fuel cap will allow fuel to
evaporate into the atmosphere. A few driving trips
with the cap properly installed should turn the
light off.
173