check engine light CHEVROLET CORVETTE 2013 6.G User Guide

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.

Black plate (35,1)Chevrolet Corvette Owner Manual - 2013 - crc2 - 11/8/12
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

Black plate (39,1)Chevrolet Corvette Owner Manual - 2013 - crc2 - 11/8/12
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.

Black plate (47,1)Chevrolet Corvette Owner Manual - 2013 - crc2 - 11/8/12
Instruments and Controls 5-47
The reminder will be repeated if the
ignition is on, the vehicle is in
motion, the driver is buckled, 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 5‑16 for more information.
Service Vehicle Messages
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 if you notice
a drop in heating and air
conditioning efficiency.
SERVICE ELECTRICAL
SYSTEM
This message displays if an
electrical problem has occurred
within the Powertrain Control
Module (PCM). Have the vehicle
serviced by your dealer.
SERVICE VEHICLE SOON
This message displays and a sound
will be heard when there may be an
electrical or another system problem
with the vehicle. Have your vehicle
checked by your dealer if this
message keeps appearing.
Starting the Vehicle
Messages
PRESS BRAKE TO START
ENGINE (Automatic
Transmission Only)
This message displays 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 9‑18 for more
information.

Black plate (32,1)Chevrolet Corvette Owner Manual - 2013 - crc2 - 11/8/12
9-32 Driving and Operating
Be careful when shifting from
1 (First) to 2 (Second) or
downshifting from 6 (Sixth) to
5 (Fifth). The spring will try to pull
the shift lever toward 4 (Fourth) and
3 (Third). Make sure you move the
lever into 2 (Second) or 5 (Fifth).
If you let the shift lever move in the
direction of the pulling, you may end
up shifting from 1 (First) to 4 (Fourth)
or from 6 (Sixth) to 3 (Third).
If the driver does not upshift as the
engine speed approaches fuel shut
off RPM, the engine speed will be
limited to protect the engine. See
Tachometer on page 5‑12for more
information.Brakes
Antilock Brake
System (ABS)
This vehicle has the Antilock Brake
System (ABS), an advanced
electronic braking system that helps
prevent a braking skid.
When the vehicle begins to drive
away, ABS checks itself.
A momentary motor or clicking noise
might be heard while this test is
going on, and it might even be
noticed that the brake pedal moves
a little. This is normal.
If there is a problem with ABS, this
warning light stays on. See Antilock
Brake System (ABS) Warning Light
on page 5‑21. If driving safely on a wet road and it
becomes necessary to slam on the
brakes and continue braking to
avoid a sudden obstacle, a
computer senses that the wheels
are slowing down. If one of the
wheels is about to stop rolling, the
computer will separately work the
brakes at each wheel.
ABS can change the brake pressure
to each wheel, as required, faster
than any driver could. This can help
you steer around the obstacle while
braking hard.
As the brakes are applied, the
computer keeps receiving updates
on wheel speed and controls
braking pressure accordingly.

Black plate (1,1)Chevrolet Corvette Owner Manual - 2013 - crc2 - 11/8/12
Vehicle Care 10-1
Vehicle Care
General Information
General Information . . . . . . . . . . 10-2
California Proposition65 Warning . . . . . . . . . . . . . . . . . 10-2
California Perchlorate Materials Requirements . . . . 10-3
Accessories and Modifications . . . . . . . . . . . . . . . 10-3
Lifting the Vehicle . . . . . . . . . . . . 10-3
Vehicle Checks
Doing Your Own Service Work . . . . . . . . . . . . . . . 10-6
Hood . . . . . . . . . . . . . . . . . . . . . . . . 10-7
Engine Compartment Overview . . . . . . . . . . . . . . . . . . . 10-8
Engine Oil . . . . . . . . . . . . . . . . . . 10-13
Engine Oil Life System . . . . . 10-19
Automatic Transmission Fluid . . . . . . . . . . . . . . . . . . . . . . 10-20
Manual Transmission Fluid . . . . . . . . . . . . . . . . . . . . . . 10-21
Hydraulic Clutch . . . . . . . . . . . . 10-21
Engine Air Cleaner/Filter . . . . 10-21
Cooling System (Engine) . . . 10-24 Cooling System
(Intercooler) . . . . . . . . . . . . . . . 10-25
Engine Coolant . . . . . . . . . . . . . 10-26
Engine Overheating . . . . . . . . 10-29
Overheated Engine Protection
Operating Mode . . . . . . . . . . . 10-30
Power Steering Fluid . . . . . . . 10-31
Washer Fluid . . . . . . . . . . . . . . . 10-32
Brakes . . . . . . . . . . . . . . . . . . . . . 10-32
Brake Fluid . . . . . . . . . . . . . . . . . 10-36
Battery . . . . . . . . . . . . . . . . . . . . . 10-37
Rear Axle . . . . . . . . . . . . . . . . . . 10-38
Starter Switch Check . . . . . . . 10-38
Automatic Transmission Shift Lock Control Function
Check . . . . . . . . . . . . . . . . . . . . . 10-39
Park Brake and P (Park) Mechanism Check . . . . . . . . 10-39
Wiper Blade Replacement . . . . . . . . . . . . . . 10-40
Windshield Replacement . . . 10-41
Headlamp Aiming
Headlamp Aiming . . . . . . . . . . 10-41
Bulb Replacement
Bulb Replacement . . . . . . . . . . 10-41
Halogen Bulbs . . . . . . . . . . . . . . 10-41 High Intensity Discharge
(HID) Lighting . . . . . . . . . . . . . 10-42
Headlamps, Front Turn Signal and Parking
Lamps . . . . . . . . . . . . . . . . . . . . 10-42
Taillamps, Turn Signal, and Stoplamps . . . . . . . . . . . . . . . . 10-43
Back-Up Lamps . . . . . . . . . . . . 10-43
License Plate Lamp . . . . . . . . 10-44
Replacement Bulbs . . . . . . . . . 10-44
Electrical System
Electrical System Overload . . . . . . . . . . . . . . . . . . 10-44
Fuses and Circuit Breakers . . . . . . . . . . . . . . . . . . 10-45
Engine Compartment Fuse
Block . . . . . . . . . . . . . . . . . . . . . 10-45
Instrument Panel Fuse Block . . . . . . . . . . . . . . . . . . . . . 10-48
Wheels and Tires
Tires . . . . . . . . . . . . . . . . . . . . . . . . 10-52
Winter Tires . . . . . . . . . . . . . . . . 10-53
Run-Flat Tires . . . . . . . . . . . . . . 10-53
Low-Profile Tires . . . . . . . . . . . 10-54
Sport Cup Tires . . . . . . . . . . . . 10-55
Summer Tires . . . . . . . . . . . . . . 10-55
Tire Sidewall Labeling . . . . . . 10-55

Black plate (30,1)Chevrolet Corvette Owner Manual - 2013 - crc2 - 11/8/12
10-30 Vehicle Care
WARNING (Continued)
SeeOverheated Engine
Protection Operating Mode on
page 10‑30 for information on
driving to a safe place in an
emergency.
If No Steam is Coming from
the Engine
If an engine overheat warning is
displayed but no steam can be seen
or heard, the problem may not be
too serious. Sometimes the engine
can get a little too hot when the
vehicle:
.Climbs a long hill on a hot day
.Stops after high-speed driving
.Idles for long periods in traffic
If the overheat warning is displayed
with no sign of steam:
1. Turn the air conditioning off. 2. Turn the heater on to the highest
temperature and to the highest
fan speed. Open the windows as
necessary.
3. If in a traffic jam, shift to N (Neutral) while stopped. If it is
safe to do so, pull off the road,
shift to P (Park) or N (Neutral)
and let the engine idle.
If the temperature overheat gauge is
no longer in the overheat zone or an
overheat warning no longer
displays, the vehicle can be driven.
Continue to drive the vehicle slowly
for about 10 minutes. Keep a safe
vehicle distance from the vehicle in
front. If the warning does not come
back on, continue to drive normally.
If the warning continues, pull over,
stop, and park the vehicle
right away.
If there is no sign of steam, idle the
engine for three minutes while
parked. If the warning is still
displayed, turn off the engine until it cools down. Also, see
“Overheated
Engine Protection Operating Mode”
next in this section.
Overheated Engine
Protection
Operating Mode
This emergency operating mode lets
the vehicle be driven to a safe
place, up to 80 km (50 mi), in an
emergency situation. If an
overheated engine condition exists
and the messages COOLANT
OVER TEMPERATURE and
REDUCED ENGINE POWER are
displayed, along with the check
engine light, an overheat protection
mode which alternates firing groups
of cylinders helps prevent engine
damage. In this mode, there is a
significant loss in power and engine
performance.
Driving extended distances in the
overheat protection mode should be
avoided.

Black plate (45,1)Chevrolet Corvette Owner Manual - 2013 - crc2 - 11/8/12
Vehicle Care 10-45
Headlamp Wiring
An electrical overload may cause
the lamps to go on and off, or in
some cases to remain off. Have the
headlamp wiring checked right away
if the lamps go on and off or
remain off.
Windshield Wipers
If the wiper motor overheats due to
heavy snow or ice, the windshield
wipers will stop until the motor cools
and will then restart.
Although the circuit is protected
from electrical overload, overload
due to heavy snow or ice may
cause wiper linkage damage.
Always clear ice and heavy snow
from the windshield before using the
windshield wipers.
If the overload is caused by an
electrical problem and not snow or
ice, be sure to get it fixed.
Fuses and Circuit
Breakers
The wiring circuits in the vehicle are
protected from short circuits by a
combination of J-Case fuses,
mini-fuses and circuit breakers. This
greatly reduces the chance of fires
caused by electrical problems.
Look at the silver-colored band
inside the fuse. If the band is broken
or melted, replace the fuse. Be sure
you replace a bad fuse with a new
one of the identical size and rating.
If you ever have a problem on the
road and do not have a spare fuse,
you can borrow one that has the
same amperage. Just pick some
feature of the vehicle that you can
get along without—like the radio or
cigarette lighter —and use its fuse,
if it is the correct amperage.
Replace it as soon as you can.
Vehicles with the ZR1 package have
an intercooler relay located on the
fan shroud. See your dealer. Vehicles with the ZR1 package also
have a fuel system mini-fuse. It is
located near the battery in the
battery storage compartment in the
rear of the vehicle.
Engine Compartment
Fuse Block
There is one fuse block in the
engine compartment located on the
passenger side of the vehicle. See
Engine Compartment Overview on
page 10‑8
for more information on
location.
Notice: Spilling liquid on any
electrical component on the
vehicle may damage it. Always
keep the covers on any electrical
component.

Black plate (77,1)Chevrolet Corvette Owner Manual - 2013 - crc2 - 11/8/12
Vehicle Care 10-77
{WARNING
An electric fan can start up even
when the engine is not running
and can injure you. Keep hands,
clothing and tools away from any
underhood electric fan.
{WARNING
Using an open flame near a
battery can cause battery gas to
explode. People have been hurt
doing this, and some have been
blinded. Use a flashlight if you
need more light.
Be sure the battery has enough
water. You do not need to add
water to the battery installed in
your new vehicle. But if a battery
has filler caps, be sure the right
amount of fluid is there. If it is low,(Continued)
WARNING (Continued)
add water to take care of that
first. If you do not, explosive gas
could be present.
Battery fluid contains acid that
can burn you. Do not get it on
you. If you accidentally get it in
your eyes or on your skin, flush
the place with water and get
medical help immediately.
{WARNING
Fans or other moving engine
parts can injure you badly. Keep
your hands away from moving
parts once the engine is running. 5. Check that the jumper cables do
not have loose or missing
insulation. If they do, you could
get a shock. The vehicles could
be damaged too.
Before you connect the cables,
here are some basic things you
should know. Positive (+) will go
to positive (+) or to a remote
positive (+) terminal if the vehicle
has one. Negative (−) will go to a
heavy, unpainted metal engine
part or to a remote negative (−)
terminal if the vehicle has one.
Do not connect positive (+) to
negative (−) or you will get a
short that would damage the
battery and maybe other parts
too. And do not connect the
negative (−) cable to the
negative (−) terminal on the dead
battery because this can cause
sparks.