check engine CHEVROLET CORVETTE 2010 6.G User Guide

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.
{WARNING:
If the airbag readiness light ever comes on and
stays on, it means that something may be wrong
with the airbag system. To help avoid injury to
yourself or others, have the vehicle serviced right
away. See Airbag Readiness Light
on page 4‑33
for more information, including important safety
information.
Voltmeter Gauge
Base and Z06 The voltmeter shows the
voltage output of the
battery. It shows the
voltage output of the
charging system while
the engine is running.
The reading changes as the rate of charge changes
(with engine speed, for example), but if the voltmeter
reads at 9 volts or below, the instrument panel cluster
and other systems may shut down. The Driver
Information Center (DIC) reads BATTERY VOLTAGE
LOW when the vehicle is at 10 volts or below. Have it
checked right away. Driving with the voltmeter reading
at 10 volts or below could drain the battery and disable
the vehicle.
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This light comes on briefly while starting the engine. If it
does not come on, have it fixed so it is ready to warn if
there is a problem.
{WARNING:
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 to Parking Brake
on page 3‑34to
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 floor. It may take
longer to stop. If the light is still on, have the vehicle
towed for service. See Towing Your Vehicle
on
page 5‑33and DIC Warnings and Messageson
page 4‑52for more information.
Antilock Brake System (ABS)
Warning Light
For vehicles with the
Antilock Brake System
(ABS), this light comes on
briefly 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. See Brake System
Warning Light on page 4‑36.
For vehicles with a Driver Information Center (DIC), see
DIC Warnings and Messages
on page 4‑52for all
brake related DIC messages.
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Engine Coolant Temperature Gauge
United StatesCanada
This gauge shows the engine coolant temperature.
If the gauge pointer moves into the shaded area, the
engine is too hot.
This means that the engine coolant has overheated.
If the vehicle has been operating under normal driving
conditions, pull off the road, stop the vehicle and turn off
the engine as soon as possible.
See Engine Overheating
on page 6‑38for more
information.
Tire Pressure Light
For vehicles with a tire
pressure monitoring
system, this light comes
on briefly when the engine
is started. It 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
significantly underinflated.
A tire pressure message in the Driver Information
Center (DIC), can accompany the light. See Driver
Information Center (DIC)
on page 4‑47for more
information. Stop and check the tires as soon as it is
safe to do so. If underinflated, inflate to the proper
pressure. See Inflation - Tire Pressure
on page 6‑70for more information.
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When the Light Flashes First and Then is
On Steady
This indicates that there may be a problem with the Tire
Pressure Monitor System. The light flashes for about a
minute and stays on steady for the remainder of the
ignition cycle. This sequence repeats with every ignition
cycle. See Tire Pressure Monitor Operation
on
page 6‑74for 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 briefly
while starting the engine.
If it does not come on,
have the vehicle serviced
by your dealer/retailer. 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: Modifications 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.
Modifications 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. See
Accessories and Modifications on page 6‑3.
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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 fix
any mechanical or electrical problems that might have
developed.
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. See Ignition
Positions
on page 3‑23. Press the bottom of the
Acc. button on the instrument panel and hold the button down for five 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
briefly, less than five 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 Gauge
United StatesCanada
United States—Z06 and
ZR1 Models Canada —Z06 and ZR1
Models
{WARNING:
Do not keep driving if the oil pressure is low.
The engine can become so hot that it catches fire.
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 gauge shows the engine
oil pressure in psi (pounds per square inch) or
kPa (kilopascals) when the engine is running.
Oil pressure should be 140 to 550 kPa (20 to 80 psi).
In certain situations such as long, extended idles on
hot days, it could read as low as 40 kPa (6 psi) 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. See Engine Oil on page 6‑19.
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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.
See
Safety Belt Reminders
on page 4‑32for 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. See Scheduled Maintenanceon
page 7‑3. After an oil change, the engine oil life
system must be reset. See “Engine Oil Life”under
DIC Operation and Displays
on page 4‑47. Also, see
Engine Oilon page 6‑19and Engine Oil Life Systemon page 6‑25for 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 fluid level is low. See Brake System
Warning Light
on page 4‑36. Have the brake system
serviced by your dealer/retailer as soon as possible.
See Brakes on page 6‑43.
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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. See Engine Coolant
on
page 6‑34.
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. See Malfunction
Indicator Lamp
on page 4‑41for 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. See Engine Overheating on page 6‑38.
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. See Convertible Top
(Manual)
on page 3‑59or Convertible Top (Power)on
page 3‑66.
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. If your
vehicle is equipped with a manual transmission,
Launch Control is available when this mode selected.
The Traction Control System (TCS) will not be operating
while in the Competitive Driving mode. Adjust your
driving accordingly. This system is available on all
models except ZR1. See Competitive Driving Mode
on
page 5‑9, including the “Launch Control” information,
and Racing or Other Competitive Drivingon page 5‑19for more information.
4-55

COOLANT OVER TEMPERATURE
This message displays and a sound will be heard if the
engine coolant exceeds 124°C (255°F). If you have
been operating the vehicle under normal driving
conditions, pull off the road, stop the vehicle, and
turn off the engine as soon as possible.
You can monitor the coolant temperature with the
gauges button on the DIC or the engine coolant
temperature gauge on the instrument panel cluster.
See Engine Overheating
on page 6‑38,DIC Operation
and Displayson page 4‑47, and Engine Coolant
Temperature Gauge on page 4‑40.
To acknowledge the message, press the RESET button.
The message and sound will come back on until this
condition changes. If you do not press the RESET
button, the message remains on until the condition
changes.
CRUISE DISENGAGED
This message displays briefly 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. See Cruise Control
on page 4‑7for
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 sound will be heard when
the engine has overheated. Stop and turn the engine
off immediately to avoid severe engine damage.
See Engine Overheating on page 6‑38.
ENGINE PROTECTION REDUCE
ENGINE RPM
This message displays if the engine oil temperature
exceeds 160°C (320°F). Check the engine coolant
temperature and engine oil level. If the engine is
too hot, see Engine Overheating
on page 6‑38.
The vehicle may need service, so see your dealer/
retailer.
You can monitor the oil temperature with the gauges
button on the DIC. See DIC Operation and Displays
on
page 4‑47.
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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.
HIGH TIRE PRESSURE
This message may be displayed when one or more of
the tires is over-inflated. This message also displays
LEFT FRONT, RIGHT FRONT, LEFT REAR, or
RIGHT REAR to indicate which tire is affected.
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. See
Run-Flat Tires
on page 6‑69, Loading the Vehicleon
page 5‑28, Inflation - Tire Pressureon page 6‑70, and
Tire Pressure Monitor Systemon page 6‑72. The DIC
also shows the tire pressure values. See DIC Operation
and Displays
on page 4‑47. To acknowledge the message, press the RESET button.
A message reappears every 10 minutes until the
condition is corrected.
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 automatically resumes. You can
continue to drive the vehicle. If this message continues
to appear, have the system repaired by your dealer/
retailer 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. Adjust your driving accordingly.
LOW FUEL
This message displays when the fuel tank is less than
10 percent full and the display is turned off. A sound
will be heard when this message is displayed. Refill the
fuel tank as soon as possible. See
Fuel Gauge
on
page 4‑46.
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