2008 CHEVROLET CORVETTE service

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.
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{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 the vehicle warranty. Always follow the
maintenance schedule in this manual for changing
engine oil.
Security Light
For information regarding
this light and the vehicle’s
security system, see
Theft-Deterrent System
on page 2-18.
Fog Lamp Light
The fog lamp 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 3-17for more information.
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If the driver remains unbuckled when the ignition is on
and the vehicle is in motion, the reminder will be
repeated. If the driver’s safety belt is already buckled,
this message and chime will not come on.
This message is an additional reminder to the safety
belt reminder light in the instrument panel cluster.
SeeSafety Belt Reminders on page 3-36for more
information.
CHANGE ENGINE OIL
This message displays when the life of the engine oil
has expired. SeeScheduled Maintenance on page 6-4.
After an oil change, the engine oil life system must
be reset. See “Engine Oil Life” underDIC Operation
and Displays on page 3-52. Also, seeEngine Oil on
page 5-17andEngine Oil Life System on page 5-23for
more information.
CHECK BRAKE FLUID
This message displays, a chime sounds, and the brake
system warning light on the instrument panel cluster
turns on if the ignition is on to inform the driver that the
brake uid level is low. SeeBrake System Warning
Light on page 3-41. Have the brake system serviced by
your dealer/retailer as soon as possible. SeeBrakes
on page 5-42.
CHECK COOLANT LEVEL
This message displays when the engine coolant level
is low. Have the cooling system serviced by your
dealer/retailer as soon as possible. SeeEngine Coolant
on page 5-28.
CHECK GAS CAP
This message displays if the fuel cap has not been fully
tightened. Check the fuel cap to make sure that it is
on properly. Once tightened, it takes at least one
overnight park to reset or clear this message. If both the
CHECK GAS CAP message and the malfunction
indicator lamp in the instrument panel cluster are on,
you may need to see your dealer/retailer for service.
SeeMalfunction Indicator Lamp on page 3-45for more
information.
CHECK OIL LEVEL
On some vehicles, this message displays and two
chimes sound if the oil level in the vehicle is low.
Once the vehicle senses a change in the engine oil
level, the light remains off.
If this message appears after starting the engine,
the engine oil level may be too low. You may need to
add oil. SeeEngine Overheating on page 5-31.
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CRUISE DISENGAGED
This message displays briey when you disengage the
cruise control system by stepping on the brake on
an automatic transmission vehicle or the clutch on a
manual transmission vehicle, or by turning off the cruise
control switch. SeeCruise Control on page 3-11for
more information.
ENGINE DRAG CONTROL ACTIVE
This message displays when engine drag control is
active. When driving in a lower gear in rainy, snowy, or
icy conditions and then letting up on the accelerator
or downshifting, the rear wheels may begin to slip and
this message displays. This message stays on for a
few seconds following the engine drag control event.
ENGINE OVERHEATED – STOP ENGINE
This message displays and a continuous chime sounds
when the engine has overheated. Stop and turn the
engine off immediately to avoid severe engine damage.
SeeEngine Overheating on page 5-31.
ENGINE PROTECTION REDUCE
ENGINE RPM
This message displays if the engine oil temperature
exceeds 320°F (160°C). Check the engine coolant
temperature and engine oil level. If the engine is
too hot, seeEngine Overheating on page 5-31.
Your vehicle may need service, so see your
dealer/retailer.
You can monitor the oil temperature with the gages
button on the DIC. SeeDIC Operation and Displays
on page 3-52.
Multiple chimes sound when this message is displayed.
This message remains displayed and active until the
issue is resolved.
HEADLAMPS SUGGESTED
This message displays if it is dark enough outside and
the headlamps and the Twilight Sentinel®controls
are off. This message informs the driver that turning on
the exterior lamps is recommended. It has become
dark enough outside to require the headlamps and/or
other exterior lamps.
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LOW TIRE PRESSURE
{CAUTION:
When the LOW TIRE PRESSURE or TIRE FLAT
message is displayed on the Driver Information
Center, your vehicle’s handling capabilities
will be reduced during severe maneuvers.
The active handling system will be affected.
SeeActive Handling System on page 4-7.
If you drive too fast, you could lose control of
your vehicle. You or others could be injured.
Do not drive over 55 mph (90 km/h) when the
LOW TIRE PRESSURE or TIRE FLAT message
is displayed. Drive cautiously and check your
tire pressures as soon as you can.
This message displays when one or more of the tires
is under-inated. This message also displays LEFT
FRONT, RIGHT FRONT, LEFT REAR, or RIGHT REAR
to indicate which tire is affected. Multiple chimes
sound and the tire pressure light on the instrument
panel cluster turns on when this message is displayed.SeeTire Pressure Light on page 3-44. You can receive
more than one tire pressure message at a time.
To read other messages that may have been sent at
the same time, press the RESET button. If a tire
pressure message appears on the DIC, stop as soon as
you can. Have the tire pressures checked and set to
those shown on the Tire Loading Information label.
SeeRun-Flat Tires on page 5-64,Loading the Vehicle
on page 4-24,Inflation - Tire Pressure on page 5-66,
andTire Pressure Monitor System on page 5-68.
The DIC also shows the tire pressure values.
SeeDIC Operation and Displays on page 3-52.
To acknowledge the message, press the RESET button.
A message reappears every 10 minutes until the
condition is corrected.
MAXIMUM SPEED 80 MPH (129 km/h)
This message displays when a malfunction is present in
the Selective Ride Control system. The vehicle speed
will be limited to a value determined by the vehicle when
the shock absorber system has failed and the shocks
are in their full soft mode. Have your vehicle serviced by
your dealer/retailer as soon as possible.
To acknowledge the message, press the RESET button.
The message reappears every 10 minutes until this
condition changes.
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To acknowledge the message, press the RESET button.
The message reappears every ve minutes until this
condition changes.
If the REDUCED ENGINE POWER message is
displayed in combination with the COOLANT OVER
TEMPERATURE message, seeEngine Overheating
on page 5-31.
SERVICE ACTIVE HANDLING SYSTEM
This message displays if there is a problem with the
Active Handling System and your vehicle needs service.
The active handling system light on the instrument
panel cluster also turns on and a chime sounds.
See your dealer/retailer. When this message is
displayed, the system is not working. Adjust your driving
accordingly. SeeActive Handling System on page 4-7
for more information.
SERVICE AIR CONDITIONING
This message displays when the electronic sensors that
control the air conditioning and heating systems are
no longer working. Have the climate control system
serviced by your dealer/retailer if you notice a drop in
heating and air conditioning efficiency.
SERVICE ANTILOCK BRAKES
If this message displays while you are driving, stop as
soon as possible and turn the ignition off. Then start the
engine again to reset the system. If the message stays
on, or comes back on again while you are driving, your
vehicle is in need of service. See your dealer/retailer.
If the antilock brake system (ABS) warning light is on and
the regular brake system warning light is not on, you still
have brakes, but do not have ABS. If the regular brake
system warning light is also on, you do not have ABS and
there is a problem with the brakes. SeeAntilock Brake
System (ABS) Warning Light on page 3-42andBrake
System Warning Light on page 3-41.
If this message is displayed, the Traction Control
System (TCS) and the Active Handling System will also
be disabled. The DIC will scroll three messages:
SERVICE ANTILOCK BRAKES, SERVICE TRACTION
SYSTEM, and SERVICE ACTIVE HANDLING, and
the instrument panel cluster lights will come on along
with a chime. When the service message is displayed,
the computer controlled systems will not assist the
driver. Have the system repaired by your dealer/retailer
as soon as possible. Adjust your driving accordingly.
To acknowledge these messages, press the RESET
button.
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SERVICE CHARGING SYSTEM
If this message displays while you are driving, there
may be a problem with the electrical charging system.
It could mean that there is a loose or broken drive belt or
that there is another electrical problem. Have your
vehicle checked right away by your dealer/retailer.
Driving while this message is on could drain the battery.
If you must drive a short distance with the message
on, be certain to turn off the vehicle’s accessories, such
as the radio and air conditioner.
Multiple chimes sound when this message is displayed.
To acknowledge the message, press the RESET
button. The message reappears every 10 minutes until
this condition changes.
SERVICE ELECTRICAL SYSTEM
This message displays if an electrical problem has
occurred within the Powertrain Control Module (PCM).
Have your vehicle serviced by your dealer/retailer.
SERVICE FUEL SYSTEM
This message displays if the Powertrain Control Module
(PCM) has detected a problem within the fuel system.
Have your vehicle serviced by your dealer/retailer.
This message also displays when the cluster is
not getting fuel information from the PCM.
SERVICE RIDE CONTROL
This message displays when the Selective Ride Control
system has detected a malfunction and the system
must be serviced. See your dealer/retailer. If a fault is
present in the Selective Ride Control system which
causes the shocks to be in their full soft condition,
the messages SERVICE RIDE CONTROL, SHOCKS
INOPERATIVE, and MAXIMUM SPEED 80 MPH
(129 km/h) will display together. SeeSelective Ride
Control on page 4-10for more information.
SERVICE TIRE MONITOR
This message displays if a part on the Tire Pressure
Monitor System (TPMS) is not working properly. The tire
pressure light also ashes and then remains on during
the same ignition cycle. SeeTire Pressure Light on
page 3-44. Several conditions may cause this message
to appear. SeeTire Pressure Monitor Operation on
page 5-70for more information. If the warning comes on
and stays on, there may be a problem with the TPMS.
See your dealer/retailer.
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SERVICE TRACTION SYSTEM
If this message displays when you are driving, there is a
problem with the Traction Control System (TCS) and
your vehicle is in need of service. See your
dealer/retailer. When this message is displayed, the
system will not limit wheel spin. Adjust your driving
accordingly.
The traction control system (TCS) warning light on the
instrument panel cluster will also turn on and a
chime will sound.
When this message is displayed, the computer
controlled systems will not assist the driver in controlling
the vehicle. Have the system repaired by your
dealer/retailer as soon as possible. Adjust your driving
accordingly. SeeTraction Control System (TCS) on
page 4-6for more information.
To acknowledge the message, press the RESET button.
SERVICE TRANSMISSION
This message displays when there is a problem with the
transmission. See your dealer/retailer for service.
SERVICE VEHICLE SOON
This message displays and a chime sounds when there
may be an electrical or another system problem with
your vehicle. Have your vehicle checked by your
dealer/retailer if this message keeps appearing.
SET PARK BRAKE FOR SEAT RECALL
If your vehicle has a manual transmission, this
message displays if you try to recall the memory
positions when the ignition is on and the parking brake
is not set. If the vehicle is on, you must set the
parking brake in order for the memory positions to
recall. SeeMemory Seat, Mirrors and Steering Wheel
on page 1-4for more information.
SET PARK BRAKE TO MOVE TOP
If your vehicle has a manual transmission, this message
displays and a chime sounds if you try to operate the
power convertible top without rst setting the parking
brake. Set the parking brake before trying to operate the
power convertible top. SeeConvertible Top (Manual)
on page 2-62orConvertible Top (Power) on page 2-68
for more information.
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