engine CHEVROLET CORVETTE 2021 Owner's Guide

Chevrolet Corvette Owner Manual (GMNA-Localizing-U.S./Canada/Mexico-
14622938) - 2021 - CRC - 2/10/21
Instruments and Controls 79
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OTHERWISE) ARISING IN ANY WAY OUT OF
THE USE OF THIS SOFTWARE, EVEN IF
ADVISED OF THE POSSIBILITY OF SUCH
DAMAGE.Warning Lights, Gauges, and
Indicators
Warning lights and gauges can signal that
something is wrong before it becomes
serious enough to cause an expensive repair
or replacement. Paying attention to the
warning lights and gauges could prevent
injury.
Some warning lights come on briefly when
the engine is started to indicate they are
working. When one of the warning lights
comes on and stays on while driving,
or when one of the gauges shows there
may be a problem, check the section that
explains what to do. Waiting to do repairs
can be costly and even dangerous.

Chevrolet Corvette Owner Manual (GMNA-Localizing-U.S./Canada/Mexico-
14622938) - 2021 - CRC - 2/10/21
80 Instruments and Controls
Instrument Cluster
Tour Mode Shown, Other Modes Similar
1.Engine Coolant Temperature Gauge
084
2. Speedometer 083
3. Fuel Gauge 083
4. Driver Information Center (DIC) 092Cluster Menu
There is an interactive display area in the
center of the instrument cluster.
Use the right steering wheel control to open
and scroll through the different items and
displays.
PressSorTto access the cluster
applications. Use the thumbwheel to scroll
yorzthrough the list of available
features. Press the thumbwheel to select.
Not all applications will be available on all
vehicles.
.Info Pages: The selected Driver
Information Center (DIC) displays can be
viewed. See Driver Information Center
(DIC) 092.
.Performance
.Audio
.Options
.Simplify

Chevrolet Corvette Owner Manual (GMNA-Localizing-U.S./Canada/Mexico-
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Instruments and Controls 83
Simplify
Press the thumbwheel to enter the Simplify
menu. Simplify mode allows certain features
of the instrument cluster to be hidden.
These features include info tiles and
interactive areas.
Scroll to the desired features with the
thumbwheel, and press to toggle them on
or off.
Using the thumbwheel, except to
acknowledge an alert, will exit
Simplify mode.
The selected features will stay hidden even
after starting and restarting the vehicle,
unless Simplify mode is manually canceled.
Speedometer
The speedometer shows the vehicle's speed
in either kilometers per hour (km/h) or
miles per hour (mph).
Odometer
The odometer shows how far the vehicle has
been driven, in either kilometers or miles.
Trip Odometer
The trip odometer shows how far the
vehicle has been driven since the trip
odometer was last reset.
The trip odometer is accessed and reset
through the Driver Information Center (DIC).
SeeDriver Information Center (DIC) 092.
Tachometer
The tachometer displays the engine speed in
revolutions per minute (rpm).
Shift lights will not appear until the engine
is warm.
In Track theme, the tachometer can be set
to display a traditional tachometer, or a
numerical tachometer with shift lights.
Caution
If the engine is operated with the rpm in
the warning area at the high end of the
tachometer, the vehicle could be
damaged, and the damage would not be
covered by the vehicle warranty. Do not
operate the engine with the rpm in the
warning area.
Fuel Gauge
When the ignition is on, the fuel gauge
indicates about how much fuel is left in
the tank.
When the indicator nears empty, the low
fuel light comes on. There is still a little fuel
left, but the fuel tank should be filled soon.
Here are four things that some owners ask
about. None of these show a problem with
the fuel gauge:
.At the service station, the fuel pump
shuts off before the gauge reads full.
.It takes a little more or less fuel to fill up
than the gauge indicated. For example,
the gauge indicated the tank was half
full, but it actually took a little more or
less than half the tank's capacity to fill
the tank.
.The gauge moves a little while turning a
corner or speeding up.

Chevrolet Corvette Owner Manual (GMNA-Localizing-U.S./Canada/Mexico-
14622938) - 2021 - CRC - 2/10/21
84 Instruments and Controls
.The gauge takes a few seconds to
stabilize after the ignition is turned on,
and goes back to empty when the
ignition is turned off.
Engine Coolant Temperature
Gauge
This gauge shows the engine coolant
temperature.
If the gauge pointer moves into the red
zone, the engine is too hot.
This reading indicates the same thing as the
warning light. It 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. SeeEngine Overheating 0248 for
more information.
Transmission Temperature Gauge
This gauge will display when the
transmission is experiencing abnormal
temperatures.
As the transmission begins to overheat, the
gauge fills to the right.
The Transmission Temperature Gauge
monitors all aspects of the transmission.
Elevated transmission temperatures may not
be reflected in the Transmission Fluid
Temperature cluster display gauge.
Messages will display to indicate the
severity of the overheating. As the gauge
fills up there will be a reduction in vehicle
performance. Once full, the transmission is
overheated and a message to stop safely
will display. Do not drive the vehicle until
the message clears. See Dual Clutch
Transmission 0198 for more information.
Seat Belt Reminders
Driver Seat Belt Reminder Light
There is a driver seat belt reminder light on
the instrument cluster.
When the vehicle is started, this light
flashes and a chime may come on to remind
the driver to fasten their seat belt.
Then the light stays on solid until the belt is
buckled. This cycle may continue several
times if the driver remains or becomes
unbuckled while the vehicle is moving.
If the driver seat belt is buckled, neither the
light nor the chime comes on.
Front Passenger Seat Belt Reminder
Light
The vehicle may have a front passenger seat
belt reminder light near the passenger
airbag status indicator. See Passenger
Sensing System 057.

Chevrolet Corvette Owner Manual (GMNA-Localizing-U.S./Canada/Mexico-
14622938) - 2021 - CRC - 2/10/21
86 Instruments and Controls
will light either ON or OFF, or the on or off
symbol, to let you know the status of the
front outboard passenger frontal airbag.
If the word ON or the on symbol is lit on
the passenger airbag status indicator, it
means that the front outboard passenger
frontal airbag is allowed to inflate.
If the word OFF or the off symbol is lit on
the airbag status indicator, it means that
the passenger sensing system has turned off
the front outboard passenger frontal airbag.
If, after several seconds, both status
indicator lights remain on, if there are no
lights at all, or if the airbag readiness light
is on, there may be a problem with the
lights or the passenger sensing system. See
your dealer for service right away.
{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. SeeAirbag Readiness Light 085
for more information, including important
safety information.
Charging System Light
The charging system light comes on briefly
when the ignition is turned on, but the
engine is not running, as a check to show
the light is working. It should go out when
the engine is started.
If the light stays on, or comes on while
driving, there may be a problem with the
electrical charging system. Have it checked
by your dealer. Driving while this light is on
could drain the battery.
When this light comes on, or is flashing, the
Driver Information Center (DIC) also displays
a message.
If a short distance must be driven with the
light on, be sure to turn off all accessories,
such as the radio and air conditioner. Find a
safe place to stop the vehicle.
Malfunction Indicator Lamp
(Check Engine Light)
This light is part of the vehicle’s emission
control on-board diagnostic system. If this
light is on while the engine is running, a
malfunction has been detected and the
vehicle may require service. The light should
come on to show that it is working when
the ignition is in Service Mode. See Ignition
Positions 0193.
Malfunctions are often indicated by the
system before any problem is noticeable.
Being aware of the light and seeking service
promptly when it comes on may prevent
damage.
Caution
If the vehicle is driven continually with
this light on, the emission control system
may not work as well, the fuel economy
may be lower, and the vehicle may not
(Continued)

Chevrolet Corvette Owner Manual (GMNA-Localizing-U.S./Canada/Mexico-
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Caution (Continued)
run smoothly. This could lead to costly
repairs that might not be covered by the
vehicle warranty.
Caution
Modifications to the engine, transmission,
exhaust, intake, or fuel system, or the
use of replacement tires that do not
meet the original tire specifications, can
cause this light to come on. This could
lead to costly repairs not covered by the
vehicle warranty. This could also affect
the vehicle’s ability to pass an Emissions
Inspection/Maintenance test. See
Accessories and Modifications0231.
If the light is flashing : A malfunction has
been detected that could damage the
emission control system and increase vehicle
emissions. Diagnosis and service may be
required.
To help prevent damage, reduce vehicle
speed and avoid hard accelerations and
uphill grades. If the light continues to flash, find a safe
place to park. Turn the vehicle off and wait
at least 10 seconds before restarting the
engine. If the light is still flashing, follow
the previous guidelines and see your dealer
for service as soon as possible.
If the light is on steady :
A malfunction has
been detected. Diagnosis and service may be
required.
Check the following:
.If fuel has been added to the vehicle
using the capless funnel adapter, make
sure that it has been removed. See
“Filling the Tank with a Portable Gas Can”
under Filling the Tank 0227. The
diagnostic system can detect if the
adapter has been left installed in the
vehicle, allowing fuel to evaporate into
the atmosphere. A few driving trips with
the adapter removed may turn off the
light.
.Poor fuel quality can cause inefficient
engine operation and poor driveability,
which may go away once the engine is
warmed up. If this occurs, change the fuel
brand. It may require at least one full
tank of the proper fuel to turn the light
off. See Recommended Fuel 0226.
If the light remains on, see your dealer.
Emissions Inspection and Maintenance
Programs
If the vehicle requires an Emissions
Inspection/Maintenance test, the test
equipment will likely connect to the
vehicle's Data Link Connector (DLC).
The DLC is under the instrument panel to
the left of the steering wheel. Connecting
devices that are not used to perform an
Emissions Inspection/Maintenance test or to
service the vehicle may affect vehicle
operation. See Add-On Electrical Equipment
0 229. See your dealer if assistance is
needed.
The vehicle may not pass inspection if:
.The light is on when the engine is
running.
.The light does not come on when the
ignition is in Service Mode.

Chevrolet Corvette Owner Manual (GMNA-Localizing-U.S./Canada/Mexico-
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Instruments and Controls 89
Service Electric Parking Brake
Light
This light should come on briefly when the
vehicle is turned on. If it does not come on,
have it fixed so it will be ready to warn if
there is a problem.
If this light stays on or comes on while
driving there is a problem with the Electric
Parking Brake (EPB), take the vehicle to a
dealer as soon as possible. In addition to the
parking brake, other safety functions that
utilize the EPB may also be degraded.
A message may also display in the Driver
Information Center (DIC). SeeElectric Parking
Brake 0205.
Antilock Brake System (ABS)
Warning Light
This light comes on briefly when the engine
is started.
If the light does not come on, have it fixed
so it will be ready to warn if there is a
problem.
If the light comes on while driving, stop as
soon as it is safely possible and turn off the
vehicle. 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. A chime may also sound
when the light comes on steady.
If the ABS light is the only light on, the
vehicle has regular brakes, but the antilock
brakes are not functioning. If both the ABS and the brake system
warning light are on, the vehicle's antilock
brakes are not functioning and there is a
problem with the regular brakes. See your
dealer for service.
See
Brake System Warning Light 088.
Performance Shifting Light
If equipped, this light may display green
when Sport Mode is activated and certain
driving conditions are met. Sport Mode
detects when the vehicle is being driven in a
competitive manner, and adjusts the shifting
of the gears accordingly. See Driver Mode
Control 0208.

Chevrolet Corvette Owner Manual (GMNA-Localizing-U.S./Canada/Mexico-
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90 Instruments and Controls
Traction Off Light
This light comes on briefly while starting
the engine. If it does not, have the vehicle
serviced by your dealer. If the system is
working normally, the indicator light then
turns off.
The traction off light comes on when the
Traction Control System (TCS) has been
turned off by pressing and releasing the
TCS/Stability Control button.
This light and the Electronic Stability Control
(ESC) OFF light come on when ESC is
turned off.
If the TCS is off, wheel spin is not limited.
Adjust driving accordingly.
SeeTraction Control/Electronic Stability
Control 0206.
Traction Control System (TCS)/
Electronic Stability Control Light
This light comes on briefly when the vehicle
is turned on.
If the light does not come on, have the
vehicle serviced by your dealer. If the
system is working normally, the indicator
light turns off.
If the light is on and not flashing, the TCS
and potentially the ESC system are not fully
operational and may not assist in
maintaining control. Adjust driving
accordingly. If the condition persists, see
your dealer as soon as possible. A Driver
Information Center (DIC) message may
display.
The light flashes when the TCS and/or the
ESC system is actively working.
See Traction Control/Electronic Stability
Control 0206.
Electronic Stability Control (ESC)
Off Light
This light comes on briefly when the vehicle
is turned on. If the light does not come on,
have the vehicle serviced by your dealer.
If the system is working normally, the
indicator light then turns off.
serviced by your dealer. If the system is
working normally, the indicator light then
turns off. This light comes on when the
Electronic Stability Control (ESC) system is
turned off. If ESC is off, the Traction Control
System (TCS) is also off. To turn ESC off and
on, see Traction Control/Electronic Stability
Control 0206.
If ESC and TCS are off, the systems do not
assist in controlling the vehicle. Adjust
driving accordingly.

Chevrolet Corvette Owner Manual (GMNA-Localizing-U.S./Canada/Mexico-
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Tire Pressure Light
For vehicles with the Tire Pressure Monitor
System (TPMS), this light comes on briefly
when the engine is started. It provides
information about tire pressures and
the TPMS.
When the Light Is On Steady
This indicates that one or more of the tires
are significantly underinflated.
A Driver Information Center (DIC) tire
pressure message may also display. Stop as
soon as possible, and inflate the tires to the
pressure value shown on the Tire and
Loading Information label. SeeTire Pressure
0 267.
When the Light Flashes First and Then Is On
Steady
If the light flashes for about a minute and
then stays on, there may be a problem with
the TPMS. If the problem is not corrected, the light will come on at every ignition
cycle. See
Tire Pressure Monitor Operation
0 270.
Engine Oil Pressure Light
Caution
Lack of proper engine oil maintenance
can damage the engine. Driving with the
engine oil low can also damage the
engine. The repairs would not be covered
by the vehicle warranty. Check the oil
level as soon as possible. Add oil if
required, but if the oil level is within the
operating range and the oil pressure is
still low, have the vehicle serviced.
Always follow the maintenance schedule
for changing engine oil.
This light should come on briefly as the
engine is started. If it does not come on,
have the vehicle serviced by your dealer. If the light comes on and stays on, it means
that oil is not flowing through the engine
properly. The vehicle could be low on oil
and may have some other system problem.
See your dealer.
Security Light
The security light should come on briefly as
the engine is started. If it does not come on,
have the vehicle serviced by your dealer.
If the system is working normally, the
indicator light turns off.
If the light stays on and the engine does
not start, there could be a problem with the
theft-deterrent system. See
Immobilizer
Operation 023.

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Instruments and Controls 93
DIC Info Pages
The following is the list of all possible DIC
info displays. Depending on the vehicle,
some may not be available.
Trip 1 or 2/Average Speed/Average Fuel
Economy :Trip displays the current distance
traveled, in either kilometers (km) or
miles (mi), since the trip odometer was last
reset. The trip odometer can be reset by
pressing and holding the thumbwheel while
this display is active.
Average Speed displays the average speed of
the vehicle in kilometers per hour (km/h) or
miles per hour (mph). This average is
calculated based on the various vehicle
speeds recorded since the last reset of this
value. The average speed can be reset by
pressing and holding the thumbwheel while
this display is active.
Average Fuel Economy displays the
approximate average liters per
100 kilometers (L/100 km) or miles per
gallon (mpg). This number is calculated
based on the number of L/100 km (mpg)
recorded since the last time this menu item
was reset. This number reflects only the
approximate average fuel economy that the
vehicle has right now, and will change as driving conditions change. The Average Fuel
Economy can be reset by pressing and
holding the thumbwheel while this display
is active.
Oil Life :
Displays an estimate of the oil's
remaining useful life. If REMAINING OIL LIFE
99% is displayed, that means 99% of the
current oil life remains.
When the remaining oil life is low, the
CHANGE ENGINE OIL SOON message will
appear on the display. The oil should be
changed as soon as possible. See Engine Oil
0 237. In addition to the engine oil life
system monitoring the oil life, additional
maintenance is recommended in the
Maintenance Schedule. See Maintenance
Schedule 0293.
The Oil Life display must be reset after each
oil change. It will not reset itself. Do not
reset the Oil Life display accidentally at any
time other than when the oil has just been
changed. It cannot be reset accurately until
the next oil change. To reset, see Engine Oil
Life System 0241.
Tire Pressure : Displays the approximate
pressures of all four tires. Tire pressure is
displayed in either kilopascal (kPa) or in
pounds per square inch (psi). If the pressure
is low, the value for that tire is shown in amber. See
Tire Pressure Monitor System
0 269 and
Tire Pressure Monitor Operation 0270.
Transmission Fluid Life : Displays an
estimate of the fluid's remaining useful life.
If REMAINING FLUID LIFE 99% is displayed,
that means 99% of the current fluid life
remains.
When the remaining fluid life is low, the
CHANGE TRANSMISSION FLUID SOON
message will appear on the display. The
fluid should be changed as soon as possible.
See Dual Clutch Transmission Fluid Life
System 0242. In addition to the
Transmission Fluid Life system monitoring
the fluid life, additional maintenance is
recommended in the Maintenance Schedule.
See Maintenance Schedule 0293.
The Fluid Life display must be reset after
each fluid change. It will not reset itself. Do
not reset the Fluid Life display accidentally
at any time other than when the fluid has
just been changed. It cannot be reset
accurately until the next fluid change. To
reset the Transmission Fluid Life system,
press and hold SEL for several seconds while
the Fluid Life display is active.