light CHEVROLET CORVETTE 2008 6.G Workshop Manual

Passenger Airbag Status Indicator
The vehicle has the passenger sensing system.
The rearview mirror has a passenger airbag status
indicator.
When you start the vehicle, the passenger airbag status
indicator will light ON and OFF, or the symbol for on
and off, for several seconds as a system check.Then, after several more seconds, the status indicator
will light either ON or OFF, or either the on or off symbol,
to let you know the status to let you know the status
of the right front passenger frontal and seat-mounted
side impact airbags (if equipped).
If the word ON or the on symbol is lit on the passenger
airbag status indicator, it means that the right front
passenger frontal airbag and seat-mounted side impact
airbag (if equipped) are enabled (may inate).
{CAUTION:
If the on indicator comes 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
seat-mounted side impact airbag (if equipped).
A child in a rear-facing child restraint can be
seriously injured or killed if the right front
passenger’s airbag inates. This is because the
back of the rear-facing child restraint would be
very close to the inating airbag. Do not use a
rear-facing child restraint in the right front
passenger’s seat if the airbag is turned on. United States
Canada
3-38

{CAUTION:
Even though the passenger sensing system is
designed to turn off the right front passenger’s
frontal airbag and seat-mounted side impact
airbag (if equipped) if the system detects a
rear-facing child restraint, no system is
fail-safe, and no one can guarantee that an
airbag will not deploy under some unusual
circumstance, even though it is turned off.
We recommend that rear-facing child restraints
be secured in a rear seat, even if the airbag is
or airbags are off.
If the word OFF or 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
frontal airbag and seat-mounted side impact airbag
(if equipped). SeePassenger Sensing System on
page 1-51for more on this, including important safety
information.If, after several seconds, both status indicator lights
remain on, or if there are no lights at all, there may be
a problem with the lights or the passenger sensing
system. See your dealer/retailer for service.
{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 airbag(s). SeeAirbag Readiness Light
on page 3-37for more on this, including
important safety information.
3-39

Voltmeter Gage
The voltmeter shows the
voltage output of your
battery. When the engine
is running, it shows
the voltage output of the
charging system.
The reading will change as the rate of charge changes
(with engine speed, for example), but if the voltmeter
reads at 9 volts or below, your instrument panel
cluster and other systems may shut down. The Driver
Information Center (DIC) will read BATTERY VOLTAGE
LOW when your vehicle is at 10 volts or below.
Have it checked right away. Driving with the voltmeter
reading at 10 volts or below could drain your battery
and disable your vehicle.
One-to-Four Shift Light
(Manual Transmission)
When this light comes on,
you can only shift from
FIRST (1) to FOURTH (4)
instead of FIRST (1) to
SECOND (2).
You must complete the shift into FOURTH (4) to turn off
this feature. This helps you get the best possible fuel
economy.
After shifting to FOURTH (4), you may downshift to a
lower gear if you prefer.
Notice:Forcing the shift lever into any gear except
FOURTH (4) when the 1 TO 4 SHIFT light comes
on may damage the transmission. Shift only from
FIRST (1) to FOURTH (4) when the light comes on.
This light will come on when:
The engine coolant temperature is higher than
169°F (76°C),
the vehicle is going 15 to 19 mph (24 to 31 km/h) and
the vehicle 21 percent throttle or less.
3-40

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.
This light should come on when you start the engine.
If it does not come on then, have it xed so it will
be ready to warn you if there is a problem.
If this warning light stays on after you start the engine,
the parking brake may still be set or there could be
a brake problem. Refer toParking Brake on page 2-32
to see if it is set. If the parking brake is not set, have
your brake system inspected right away.If the light comes on while you are driving and you have
a CHECK BRAKE FLUID message showing on the
DIC, 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 oor. It may take longer to stop. If the light
is still on, have the vehicle towed for service. See
Towing Your Vehicle on page 4-29andDIC Warnings
and Messages on page 3-57for more information.
{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. United States
Canada
3-41

Antilock Brake System (ABS)
Warning Light
For vehicles with the
Antilock Brake System
(ABS), this light comes on
briey when the engine
is started.
That is normal. If the light does not come on then,
have it xed so it will be ready to warn you if there is a
problem.
If the ABS light stays on, turn the ignition off. If the light
comes on while driving, stop as soon as it is safely
possible and turn the ignition off. Then start the engine
again to reset the system. If the ABS light stays on,
or comes on again while driving, the vehicle needs
service. If the regular brake system warning light is
not on, the vehicle still has brakes, but not antilock
brakes. If the regular brake system warning light is also
on, the vehicle does not have antilock brakes and
there is a problem with the regular brakes. SeeBrake
System Warning Light on page 3-41.
For vehicles with a Driver Information Center (DIC),
seeDIC Warnings and Messages on page 3-57for all
brake related DIC messages.
Traction Control System (TCS)
Warning Light
This light should come on
briey as you start the
engine. If the light does not
come on then, have it
xed so it will be ready to
warn you if there is a
problem.
If it stays on, or comes on and the Driver Information
Center (DIC) shows a SERVICE TRACTION SYSTEM
message when you are driving, there is a problem
with your Traction Control System (TCS) and your
vehicle needs service. When this light is on, the system
will not limit wheel spin. Adjust your driving accordingly.
If the driver turns off the TCS by pressing the button
on the console, the TCS light will come on and the
TRACTION SYSTEM OFF message will show on the
DIC. SeeDIC Warnings and Messages on page 3-57
for more information.
3-42

Active Handling System Light
The Active Handling System light will come on briey
as you start the engine. If the light does not come
on then, have it xed so it will be ready to warn you if
there is a problem. This light will also come on when
the ACTIVE HANDLING CALIBRATING message
is displayed in the Driver Information Center (DIC).
If the light stays on or
comes on while you are
driving, a chime sounds
and a SERVICE ACTIVE
HANDLING SYSTEM
message appears on the
DIC, there is a problem
with your Active Handling
System and your vehicle
needs service.
The driver can acknowledge this message by pressing
the RESET button. When the SERVICE ACTIVE
HANDLING SYSTEM message is displayed in the DIC,
the Active Handling System will not assist you in
controlling the vehicle. You should have the system
serviced as soon as possible. Adjust your driving
accordingly.When the system is working, you will see the
ACTIVE HANDLING message displayed in the DIC.
You may also feel or hear the system working.
This is normal.
If the driver turns off the Active Handling System by
pressing the button on the console for ve seconds,
the Active Handling System light will come on,
a chime will sound, and the TRACTION SYSTEM AND
ACTIVE HANDLING – OFF message will be displayed
in the DIC. The Traction Control System will also
be turned off. SeeDIC Warnings and Messages on
page 3-57for more information.
If the Active Handling System and the Traction Control
System are off, pressing the console button momentarily
will turn both systems on. The DIC will display the
TRACTION SYSTEM AND ACTIVE HANDLING – ON
message, the instrument cluster light will be off, and
a chime will sound. SeeDIC Warnings and Messages
on page 3-57for more information.
3-43

Engine Coolant Temperature Gage
This gage shows the engine coolant temperature.
If the gage pointer moves into the shaded area,
your engine is too hot.
This 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 5-31for more
information.
Tire Pressure Light
This light comes on briey
when the engine is started.
This light also comes on when one or more of the tires
are signicantly underinated.
A tire pressure message in the Driver Information
Center (DIC), can accompany the light. SeeDIC
Warnings and Messages on page 3-57for more
information.
Stop and check the tires as soon as it is safe to do so.
If underinated, inate to the proper pressure.
SeeTires on page 5-58for more information.
If a problem is detected with the Tire Pressure Monitor
System, this light ashes for approximately 60 seconds
and then stays on for the remainder of the ignition
cycle. SeeTire Pressure Monitor System on page 5-68
for more information. United States
Canada
3-44

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.
The check engine light
comes on to indicate
that there is an OBD II
problem and service
is required.
Malfunctions often are indicated by the system before
any problem is apparent. This can 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 a while, the emission controls
might not work as well, your vehicle’s fuel economymight 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,
transmission, exhaust, intake, or fuel system of
your vehicle or the replacement of the original tires
with other than those of the same Tire Performance
Criteria (TPC) can affect your vehicle’s emission
controls and can cause this light to come on.
Modications to these systems could lead to costly
repairs not covered by your 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 briey, as a check to show it is
working, as you start the engine. If the light does not
come on, have it repaired. This light also 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
your vehicle. Diagnosis and service might be
required.
Light On Steady— An emission control system
malfunction has been detected on your vehicle.
Diagnosis and service might be required.
3-45

If the Light Is Flashing
The following can prevent more serious damage to
your vehicle:
Reduce vehicle speed.
Avoid hard accelerations.
Avoid steep uphill grades.
If the light stops ashing and remains on steady,
see “If the Light Is On Steady” following.
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 engine 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 ashing,
follow the previous steps, and see your dealer/retailer
for service as soon as possible.
If the Light Is On Steady
You might 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 5-8. The
diagnostic system can determine if the fuel cap has
been left off or improperly installed. A loose or missingfuel cap allows fuel to evaporate into the atmosphere.
A few driving trips with the cap properly installed should
turn the light off.
Did you just drive through a deep puddle of water?
If so, your 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.
Have you recently changed brands of fuel?
If so, be sure to fuel your vehicle with quality fuel.
SeeGasoline Octane on page 5-5. Poor fuel quality
causes the engine not to run as efficiently as designed.
You might notice this as stalling after start-up,
stalling when you put the vehicle into gear,
misring, hesitation on acceleration, or stumbling on
acceleration — these conditions might go away once
the engine is warmed up. This will be detected by
the system and cause the light to turn on.
If you experience one or more of these conditions,
change the fuel brand you use. It will require at least
one full tank of the proper fuel to turn the light off.
If none of the above steps have made the light turn off,
your dealer/retailer can check the vehicle. Your
dealer/retailer has the proper test equipment and
diagnostic tools to x any mechanical or electrical
problems that might have developed.
3-46

Emissions Inspection and
Maintenance Programs
Some state/provincial and local governments have or
might begin programs to inspect the emission control
equipment on your vehicle. Failure to pass this
inspection could prevent you from getting a vehicle
registration.
Here are some things you need to know to help your
vehicle pass an inspection:
Your vehicle will not pass this inspection if the check
engine light is on or not working properly.
To perform a check engine light bulb check with the
keyless ignition, make sure the transmitter fob is in the
passenger compartment. SeeIgnition Positions on
page 2-22. Press the bottom of the Acc. button on
the instrument panel and hold the button down
for ve seconds. The instrument panel, including the
check engine light, will light up and the ignition will
be on, but the engine will not start — if you press the
bottom of the Acc. button only briey, less than
ve seconds, the accessory power mode will be turned
on, but not the ignition. After the bulb check, be sure
to press and release the Acc. button again to turn
the ignition off and avoid draining the vehicle’s battery.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 the battery or if the 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
dealer/retailer can prepare the vehicle for inspection.
3-47