2009 CHEVROLET CORVETTE check engine

{CAUTION:
The brake system might not be working properly if
the brake system warning light is on. Driving with
the brake system warning light on can lead to a
crash. If the light is still on after the vehicle has
been pulled off the road and carefully stopped,
have the vehicle towed for service.
If this warning light stays on after the engine is started,
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
the brake system inspected right away.
If the light comes on while driving and a CHECK
BRAKE FLUID message shows on the DIC, pull off the
road and stop carefully. The pedal may be 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. SeeTowing Your Vehicle on
page 4-28andDIC Warnings and Messages on
page 3-54for more information.
Antilock Brake System (ABS)
Warning Light
For vehicles with the
Antilock Brake System
(ABS), this light comes on
briey when the engine
is started.
If it does not, have the vehicle serviced by your
dealer/retailer. If the system is working normally the
indicator light then goes off.
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 3-38.
For vehicles with a Driver Information Center (DIC),
seeDIC Warnings and Messages on page 3-54for all
brake related DIC messages.
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Tire Pressure Light
For vehicles with a tire
pressure light, this light
comes on briey when the
engine is started and
provides information about
tire pressures and the
Tire Pressure Monitoring
System.
When the Light is On Steady
This indicates that one or more of the tires is signicantly
underinated.
A tire pressure message in the Driver Information
Center (DIC), can accompany the light. SeeDIC
Warnings and Messages on page 3-54for more
information. Stop and check the tires as soon as it is
safe to do so. If a tire is underinated, inate to the
proper pressure. SeeTires on page 5-62for more
information.
When the Light Flashes First and Then is
On Steady
This indicates that there could be a problem with the
Tire Pressure Monitor System. The light ashes
for about a minute and stays on steady for the remainder
of the ignition cycle. This sequence repeats with every
ignition cycle. SeeTire Pressure Monitor System on
page 5-73for more information.
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.
This comes on briey
while starting the engine.
If it does not come on,
have the vehicle serviced
by your dealer/retailer.
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If the check engine light comes on and stays on, while
the engine is running, this indicates that there is an
OBD II problem and service is required.
Malfunctions often are indicated by the system before
any problem is apparent. Being aware of the light
can prevent more serious damage to the vehicle.
This system assists the service technician in correctly
diagnosing any malfunction.
Notice:If the vehicle is continually driven with
this light on, after a while, the emission controls
might not work as well, the 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 the vehicle warranty.
Notice:Modications made to the engine,
transmission, exhaust, intake, or fuel system of
the vehicle or the replacement of the original tires
with other than those of the same Tire Performance
Criteria (TPC) can affect the vehicle’s emission
controls and can cause this light to come on.
Modications to these systems could lead to
costly repairs not covered by the vehicle 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 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 the vehicle.
Diagnosis and service might be required.
The following can prevent more serious damage to the
vehicle:
Reduce vehicle speed.
Avoid hard accelerations.
Avoid steep uphill grades.
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 key off, wait at least 10 seconds, and restart
the engine. If the light is still ashing, follow the previous
steps and see your dealer/retailer for service as soon
as possible.
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Light On Steady:An emission control system
malfunction has been detected on the vehicle.
Diagnosis and service might be required.
An emission system malfunction might be corrected by
doing the following:
Make sure the fuel cap is fully installed. SeeFilling
the Tank on page 5-9. The diagnostic system can
determine if the fuel cap has been left off or
improperly installed. A loose or missing fuel cap
allows fuel to evaporate into the atmosphere. A few
driving trips with the cap properly installed should
turn the light off.
If the vehicle has been driven through a deep
puddle of water, the 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.
Make sure to fuel the vehicle with quality fuel.
Poor fuel quality causes the engine not to run
as efficiently as designed and may cause: stalling
after start-up, stalling when the vehicle is changed
into gear, misring, hesitation on acceleration,
or stumbling on acceleration. These conditions
might go away once the engine is warmed up.
If one or more of these conditions occurs, change
the fuel brand used. It will require at least one
full tank of the proper fuel to turn the light off.
SeeGasoline Octane on page 5-6.
If none of the above have made the light turn off, your
dealer/retailer can check the vehicle. The 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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Emissions Inspection and
Maintenance Programs
Some state/provincial and local governments have or
might begin programs to inspect the emission control
equipment on the vehicle. Failure to pass this inspection
could prevent getting a vehicle registration.
Here are some things to know to help the vehicle pass
an inspection:
The vehicle will not pass this inspection if the check
engine light is on with the engine running.
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 — 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, press and release the Acc.
button again to turn the ignition off and avoid
draining the vehicle’s battery.
The vehicle will not pass this inspection if the
OBD II (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 the battery has recently
been replaced or if the battery has run down.
The diagnostic system is designed to evaluate
critical emission control systems during normal
driving. This can take several days of routine
driving. If this has been done and the vehicle still
does not pass the inspection for lack of OBD II
system readiness, your dealer/retailer can prepare
the vehicle for inspection.
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Engine Oil Pressure Gage
{CAUTION:
Do not keep driving if the oil pressure is low.
The engine can become so hot that it catches re.
Someone could be burned. Check the oil as soon
as possible and have the vehicle serviced.
Notice:Lack of proper engine oil maintenance can
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.
The engine oil pressure gage shows the engine
oil pressure in psi (pounds per square inch) or
kPa (kilopascals) when the engine is running.
Oil pressure should be 20 to 80 psi (140 to 550 kPa).
In certain situations such as long, extended idles on hot
days, it could read as low as 6 psi (40 kPa) and still
be considered normal. It may vary with engine speed,
outside temperature and oil viscosity, but readings
above the shaded area show the normal operating
range. Readings in the shaded area tell you that the
engine is low on oil, or that you might have some other
oil problem. SeeEngine Oil on page 5-20. United States
Canada
United States — Z06
and ZR1 ModelsCanada — Z06 and
ZR1 Models
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BUCKLE PASSENGER
This message reminds you to buckle the passenger’s
safety belt.
This message displays and a sound will be heard when
the ignition is on, the driver’s safety belt is buckled, the
passenger’s safety belt is unbuckled with the passenger
airbag enabled, and the vehicle is in motion. You should
have the passenger buckle their safety belt.
The reminder will be repeated if the ignition is on, the
vehicle is in motion, the driver is buckled and the
passenger is still unbuckled, and the passenger airbag
is enabled. If the passenger’s safety belt is already
buckled, this message will not come on.
BUCKLE SEATBELT
This message reminds you to buckle the driver’s
safety belt.
This message displays and a sound will be heard when
the ignition is on, the driver’s safety belt is unbuckled,
and the vehicle is in motion. You should buckle your
safety belt.
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 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 3-34for more
information.
CHANGE BRAKE PADS
On vehicles with electronic brake pad wear sensors,
this message will be displayed when the pads are worn.
See your dealer/retailer for service.
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 3-49. Also, seeEngine Oil
on page 5-20andEngine Oil Life System on page 5-26
for more information.
CHECK BRAKE FLUID
This message displays, a sound will be heard, 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 3-38. Have the brake system
serviced by your dealer/retailer as soon as possible.
SeeBrakes on page 5-44.
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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 5-34.
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 3-42for 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 5-39.
To acknowledge the message, press the RESET button.
The message reappears every 10 minutes until this
condition changes.
CLOSE TRUNK TO MOVE TOP
This message displays and a sound will be heard if
the trunk is open while you are trying to operate the
convertible top. Make sure the trunk is closed before
operating the convertible top. SeeConvertible Top
(Manual) on page 2-59orConvertible Top (Power)
on page 2-66.
COMPETITIVE DRIVING MODE
This message displays and a sound will be heard
when the Competitive Driving mode is selected.
The instrument panel cluster light will be on when the
Competitive Driving mode is selected. The Traction
Control System (TCS) will not be operating while in
the Competitive Driving mode. Adjust your driving
accordingly. SeeRacing or Other Competitive Driving
on page 4-15for more information.
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