2006 CHEVROLET CORVETTE check engine

Tire Pressure Light
This light should come on
briey as you start the
engine. It will then come on
only when a at or low tire
pressure condition exists.
SeeTire Pressure Monitor System on page 5-67for
more information.
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, 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,
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 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 5-3.
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This light should come on briey, as a check to show
you it is working, as you start the engine. 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 misre condition has
been detected. A misre 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 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 your 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 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 5-7. 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.
Did you just drive through a deep puddle of water?
If so, your electrical system may be wet. The condition
will usually be corrected when the electrical system
dries out. A few driving trips should turn the light off.
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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 will
cause your engine not to run as efficiently as designed.
You may 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 may 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 can check the vehicle. Your dealer has
the proper test equipment and diagnostic tools to x
any mechanical or electrical problems that may
have developed.
Emissions Inspection and Maintenance
Programs
Some state/provincial and local governments have or
may 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 your battery or if your 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
GM dealer can prepare the vehicle for inspection.
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Engine Oil Pressure GageThe 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 5-16.
The engine oil pressure can also be displayed using the
GAGES button on the Driver Information Center (DIC).
SeeDriver Information Center (DIC) on page 3-48.
{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. United States
Canada
United States — Z06
ModelCanada — Z06 Model
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BUCKLE SEATBELT:This message reminds you to
buckle the driver’s seat belt.
This message will display and a chime will sound when
the ignition is on, the driver’s seat belt is unbuckled,
and the vehicle is in motion. You should buckle
your seat 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 seat 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 Reminder Light on page 3-34for more
information.
CHANGE ENGINE OIL:This message will appear 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” under
DIC Controls and Displays on page 3-48. Also, see
Engine Oil on page 5-16andEngine Oil Life System on
page 5-23for more information.
CHECK BRAKE FLUID:This message will appear, a
chime will sound, and the brake system warning light on
the instrument panel cluster will be 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 GM dealer as
soon as possible. SeeBrakes on page 5-42.CHECK COOLANT LEVEL:This message will appear
when there is a low level of engine coolant. Have
the cooling system serviced by your GM dealer as soon
as possible. SeeEngine Coolant on page 5-29.
CHECK GAS CAP:If the gas cap has not been fully
tightened, this message will appear. You should
check your gas cap to ensure that it is on properly.
Once tightened, it will take at least one overnight park
to reset or clear this message. If there is a CHECK GAS
CAP message and a malfunction indicator lamp on in
the instrument panel cluster, you may need to see your
GM dealer for service. SeeMalfunction Indicator
Lamp on page 3-42for more information.
CHECK OIL LEVEL:Press the RESET button to
acknowledge that you have read the message and to
remove it from the display. The message will reappear
every 10 minutes until this condition changes. Once
the vehicle senses a change in the engine oil level, the
light will remain off.
You will hear two chimes when this message is
displayed. If this message appears after starting your
engine, your engine oil level may be too low. You
may need to add oil. SeeEngine Overheating on
page 5-32.
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ENGINE PROTECTION REDUCE ENGINE RPM:
You will hear multiple chimes when this message is
displayed. This message will remain displayed and
active until the issue is resolved.
If the engine oil temperature exceeds 320°F (160°C),
this message is displayed. You should check the engine
coolant temperature and engine oil level. If your engine is
too hot, seeEngine Overheating on page 5-32. Your
vehicle may need service, so see your GM dealer. You
can monitor the oil temperature with the gages button
on the DIC.
HEADLAMPS SUGGESTED:If it is dark enough outside
and the headlamps and Twilight Sentinel
®controls are
off, this message will display. 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.
HIGH TIRE PRESSURE:To acknowledge the warning,
press the RESET button. After you press the RESET
button, a message will reappear every 10 minutes
until this condition changes. This message indicates
that the pressure in one of your tires is higher than
42 psi (290 kPa). Next to the HIGH TIRE PRESSURE
message, you can see either LEFT FRONT, RIGHT
FRONT, LEFT REAR, or RIGHT REAR to indicate to
you which tire is higher than 42 psi (290 kPa).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 your Tire Loading Information
Label. SeeExtended Mobility Tires on page 5-62and
Ination - Tire Pressure on page 5-64.
HOT ENGINE AIR CONDITIONING OFF:This message
displays when the engine coolant becomes hotter than
the normal operating temperature. To avoid added strain
on a hot engine, the air conditioning compressor is
automatically turned off. When the coolant temperature
returns to normal, the A/C operation will automatically
resume. You can continue to drive your vehicle. If this
message continues to appear, have the system repaired
by your GM dealer as soon as possible to avoid
compressor damage.
ICE POSSIBLE:This message displays when the
outside air temperature is cold enough to create icy road
conditions.
LOW FUEL:This message displays when the fuel tank
is less than 10 percent full and the display is turned
off. A multiple chime will also sound when this message
is displayed. SeeFuel Gage on page 3-47.
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LOW OIL PRESSURE:If this message appears while
the engine is running, stop the engine and do not
operate it until the cause of low oil pressure is corrected.
Severe damage to the engine can result. A multiple
chime will sound when this message is displayed. See
Engine Oil on page 5-16.
LOW TIRE PRESSURE:You will hear multiple chimes
and the tire pressure light on the instrument panel
cluster will come on when this message is displayed.
SeeTire Pressure Light on page 3-42. To acknowledge
the warning, press the RESET button. After you
press the RESET button, a message will appear every
10 minutes until this condition changes. This message
indicates that the pressure in one of your tires is
less than 24 psi (164 kPa). Next to the LOW TIRE
PRESSURE message, you can see either LEFT
FRONT, RIGHT FRONT, LEFT REAR, or RIGHT REAR
to indicate to you which tire is low on pressure. 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 your Tire Loading Information Label.
SeeExtended Mobility Tires on page 5-62andTire
Pressure Monitor System on page 5-67.
{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. See
Active Handling System on page 4-10.Ifyou
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.
MAXIMUM SPEED 80 MPH (129 km/h):To
acknowledge the warning, press the RESET button.
After you press the RESET button, a message will
reappear every 10 minutes until this condition changes.
This message indicates that 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 GM dealer as soon as possible.
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NO FOB - OFF OR RUN?:When this message
displays, it means that the keyless access transmitter
is not detected inside the vehicle while you are trying
to turn the ignition off. Your vehicle may be near a strong
radio antenna signal causing the keyless access
system to be jammed. The vehicle will remain in
ACCESSORY until OFF or START has been pressed
or ve minutes has expired. If you turn the ignition
off and you cannot nd the keyless access transmitter,
you will not be able to restart the vehicle. The keyless
access transmitter needs to be inside of the vehicle
in order for the vehicle to start. SeeStarting the Engine
on page 2-23for more information.
OPTIONS UNAVAILABLE:This message is displayed
for a few seconds if a keyless access transmitter
that is not labelled 1 or 2 is used and you try to
personalize the features on your vehicle by pressing
the OPTION button. The personalization system will
not recognize the transmitter and the DIC will not display
the current driver number or the menus used to set
personalizations. The personalization features will
then be set to the default states. SeeDIC Vehicle
Personalization on page 3-68for more information.
PRESS BRAKE TO START ENGINE (Automatic
Transmission Only):This message is displayed if you
try to start the engine by pressing the keyless ignition
start button without having the brake pressed. The brake
needs to be pressed when starting the engine. See
Ignition Positions on page 2-22for more information.REDUCED ENGINE POWER:You will hear multiple
chimes when this message is displayed. To acknowledge
that you have read the message and to remove it from
the display, press the RESET button. The message will
reappear every ve minutes until this condition changes.
If the Driver Information Center (DIC) displays the
REDUCED ENGINE POWER message and the CHECK
ENGINE light comes on, a noticeable reduction in the
vehicle’s performance may occur. If the REDUCED
ENGINE POWER message is displayed but there is no
reduction in performance, proceed to your destination.
The performance may be reduced the next time the
vehicle is driven.
The vehicle may be driven at a reduced speed while
the REDUCED ENGINE POWER message is displayed,
but acceleration and speed may be reduced. Anytime the
CHECK ENGINE light stays on, the vehicle should be
taken to your GM dealer as soon as possible for
diagnosis and repair.
Also, seeMalfunction Indicator Lamp on page 3-42.Ifthe
REDUCED ENGINE POWER message is displayed in
combination with the COOLANT OVER TEMPERATURE
message, seeEngine Overheating on page 5-32.
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