2013 CHEVROLET CORVETTE check engine

Black plate (19,1)Chevrolet Corvette Owner Manual - 2013 - crc2 - 11/8/12
Instruments and Controls 5-19
This light comes on during a
malfunction in one of two ways:
Light Flashing:A misfire condition
has been detected. A misfire
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 flash, find a
safe place to stop and park the
vehicle. Turn the vehicle off, wait at
least 10 seconds, and restart the
engine. If the light is still flashing,
follow the previous steps and see
your dealer for service as soon as
possible.
Light On Steady: An emission
control system malfunction has
been detected on the vehicle.
Diagnosis and service might be
required. The following may correct an
emission control system
malfunction:
.Check that the fuel cap is fully
installed. See
Filling the Tank on
page 9‑47. 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.
.Check that good quality fuel is
used. 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, misfiring,
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 may require at least one full tank
of the proper fuel to turn the light off.
See
Recommended Fuel on
page 9‑45.
If none of the above have made the
light turn off, your dealer can check
the vehicle. The dealer has the
proper test equipment and
diagnostic tools to fix any
mechanical or electrical problems
that might have developed.Emissions Inspection and
Maintenance Programs
Depending on where you live, your
vehicle may be required to
participate in an emission control
system inspection and maintenance
program. For the inspection, the
emission system test equipment will
likely connect to the vehicle's Data
Link Connector (DLC).

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Instruments and Controls 5-21
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 9‑33to 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 the
Vehicle on page 10‑79 andBrake
System Messages on page 5‑35 for
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. 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 5‑20.
One-to-Four Shift Light
(Manual Transmission)
When this light comes on, the
vehicle can only be shifted from
1 (First) to 4 (Fourth) instead of
1 (First) to 2 (Second).
The shift must be completed into
4 (Fourth) to turn off this feature.
This helps the vehicle get the best
possible fuel economy.
After shifting to 4 (Fourth), the
vehicle can be downshifted to a
lower gear.

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5-30 Instruments and Controls
RESET Button
The RESET button, used along with
other buttons, will reset system
functions and turn off or
acknowledge messages on the DIC.
Head-Up Display (HUD)
{WARNING
If the HUD image is too bright,
or too high in your field of view, it
may take you more time to see
things you need to see when it is
dark outside. Be sure to keep the
HUD image dim and placed low in
your field of view.
For vehicles with the Head-Up
Display (HUD), you can see some
of the driver information that
appears on the instrument panel
cluster. The information may be displayed in
English or metric units and appears
as an image focused out toward the
front of the vehicle. The HUD
consists of the following information:
.Speedometer
.Turn Signal Indicators
.High-Beam Indicator Symbol
.Tachometer
.Manual Paddle Shift Gear
Indicator (If Equipped)
These displays on the HUD are
for use when using the manual
paddle shift controls to shift the
transmission. See
“Manual
Paddle Shift” inAutomatic
Transmission on page 9‑25.
.Shift Light
This light is used for
performance driving to indicate
that the vehicle's best
performance level has been
reached to shift the transmission
into the next higher gear. An
arrow pointing up will light up on the display just prior to reaching
the engine fuel cut-off mode.
This cut-off is about 6,500 rpm
for the LS3 engine, 6,600 rpm
for the LS9 & ZR1 engines, and
7,000 rpm for the LS7 engine.
.Check Gauges Warning
.Engine Coolant Temperature
Gauge
.Transmission Fluid Temperature
Gauge, (Automatic Transmission
Vehicles Only)
.Engine Oil Temperature Gauge
.Engine Oil Pressure Gauge
.G-Force Gauge
.Boost Gauge (If Equipped)
.Audio Functions, Street
Mode Only
.Navigation, Only with Navigation
Radio, Turn-by-Turn Guidance.
Street Mode Only

Black plate (32,1)Chevrolet Corvette Owner Manual - 2013 - crc2 - 11/8/12
5-32 Instruments and Controls
Within each mode, the display, can
be further customized by pressing
the PAGE button. Pressing this
button in each mode will turn off and
on the following:
.Street Mode—No tachometer,
circular tachometer, and linear
tachometer.
.Track Modes 1 and 2 —No
minor gauge, coolant
temperature, transmission oil
temperature (Automatic
Transmission only), engine oil
temperature, engine oil
pressure, and boost gauge.
While in Track Mode 1 or 2, the
maximum G value achieved
during the current ignition cycle
can be displayed by pressing
and holding the PAGE button.
The maximum G display will be
shown until the PAGE button is
released. The maximum G value
display will be identical to the
normal G value display,
except the maximum G gauge digits (X.XX G) and
corresponding G gauge bar will
overwrite the current G value.English
Metric
Be sure to continue scanning the
displays, controls, and driving
environment just as you would in a
vehicle without HUD. If you never
look at the instrument panel cluster,
you may miss something important,
such as a warning light. Under
important warning conditions, the
CHECK GAGES warning will illuminate in the HUD. View your
Driver Information Center (DIC) for
more information.The HUD controls are located to the
left of the steering wheel.

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Instruments and Controls 5-35
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.
Brake System Messages
ABS (Antilock Brake System)
ACTIVE
This message displays when the
Antilock Brake System (ABS) is
adjusting brake pressure to help
avoid a braking skid.
Slippery road conditions may exist if
this message is displayed, so adjust
your driving accordingly. The
message stays on for a few
seconds after the system stopsadjusting brake pressure. See
Antilock Brake System (ABS) on
page 9‑32
for 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 for service.
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 5‑20. Have the brake system
serviced by your dealer as soon as
possible. See Brakes on
page 10‑32.
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, the vehicle is in
need of service. See your dealer.
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. See
Antilock Brake System (ABS)
Warning Light on page 5‑21
and
Brake System Warning Light on
page 5‑20.
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 sound.
When the service message is
displayed, the computer controlled

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5-38 Instruments and Controls
Engine Cooling System
Messages
CHECK COOLANT LEVEL
This message displays when the
engine coolant level is low. Have
the cooling system serviced by your
dealer as soon as possible. See
Engine Coolant on page 10‑26.
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 theinstrument panel cluster. See
Engine Overheating on page 10‑29,
Driver Information Center (DIC) on
page 5‑25, and
Engine Coolant
Temperature Gauge on page 5‑15.
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.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 10‑29.
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 10‑29. The
vehicle may need service, so see
your dealer.
You can monitor the oil temperature
with the gauges button on the DIC.
See Driver Information Center (DIC)
on page 5‑25.
Multiple chimes sound when this
message is displayed. This
message remains displayed and
active until the issue is resolved.

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Instruments and Controls 5-39
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
as soon as possible to avoid
compressor damage.
Engine Oil Messages
CHANGE ENGINE OIL
This message displays when the life
of the engine oil has expired. See
Maintenance Schedule on
page 11‑3. After an oil change, the
engine oil life system must be reset.See
“Engine Oil Life” underDriver
Information Center (DIC) on
page 5‑25. Also, see Engine Oil on
page 10‑13 andEngine Oil Life
System on page 10‑19 for 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 10‑29.
To acknowledge the message, press
the RESET button. The message
reappears every 10 minutes until
this condition changes.
LOW OIL PRESSURE
This message displays if low oil
pressure levels occur. 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 sound will be heard when this
message is displayed. See Engine
Oil on page 10‑13.
Engine Power Messages
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.

Black plate (40,1)Chevrolet Corvette Owner Manual - 2013 - crc2 - 11/8/12
5-40 Instruments and Controls
REDUCED ENGINE POWER
If this message displays 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
dealer as soon as possible for
diagnosis and repair. See
Malfunction Indicator Lamp on
page 5‑18for more information.
Multiple chimes sound when this
message is displayed. To acknowledge the message, press
the RESET button. The message
reappears every five minutes until
this condition changes.
If the REDUCED ENGINE POWER
message is displayed in
combination with the COOLANT
OVER TEMPERATURE message,
see
Engine Overheating on
page 10‑29.
Fuel System Messages
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 for service. See
Malfunction Indicator Lamp on
page 5‑18 for more information.
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 5‑12.
SERVICE FUEL SYSTEM
This message displays if the
Powertrain Control Module (PCM)
has detected a problem within the
fuel system. Have the vehicle
serviced by your dealer. This
message also displays when the
cluster is not getting fuel information
from the PCM.
Key and Lock Messages
FOB AUTOLEARN WAIT
XX MINUTES
See “Matching Transmitter(s) to
Your Vehicle” underRemote
Keyless Entry (RKE) System
Operation on page 2‑3.