service CHEVROLET CORVETTE C8 2021 User Guide

Chevrolet Corvette Owner Manual (GMNA-Localizing-U.S./Canada/Mexico-
14622938) - 2021 - CRC - 9/22/20
60 Seats and Restraints
approved by GM for your specific vehicle.
SeeAdding Equipment to the
Airbag-Equipped Vehicle 060 for more
information about modifications that can
affect how the system operates.
The ON indicator may be lit if an object,
such as a briefcase, handbag, grocery bag,
laptop, or other electronic device, is put on
an unoccupied seat. If this is not desired,
remove the object from the seat.
{Warning
Stowing articles under the passenger seat
or between the passenger seat cushion
and seatback may interfere with the
proper operation of the passenger
sensing system.
Servicing the Airbag-Equipped
Vehicle
Airbags affect how the vehicle should be
serviced. There are parts of the airbag
system in several places around the vehicle.
Your dealer and the service manual have
information about servicing the vehicle and
the airbag system. To purchase a service
manual, see Publication Ordering
Information 0316.
{Warning
For up to 10 seconds after the vehicle is
turned off and the battery is
disconnected, an airbag can still inflate
during improper service. You can be
injured if you are close to an airbag
when it inflates. Avoid yellow connectors.
They are probably part of the airbag
system. Be sure to follow proper service
procedures, and make sure the person
performing work for you is qualified to
do so.
Adding Equipment to the
Airbag-Equipped Vehicle
Adding accessories that change the vehicle's
frame, bumper system, height, front end,
or side sheet metal may keep the airbag
system from working properly.
The operation of the airbag system can also
be affected by changing, including
improperly repairing or replacing, any parts
of the following:
.Airbag system, including airbag modules,
front or side impact sensors, sensing and
diagnostic module, or airbag wiring
.Front seats, including stitching, seams or
zippers
.Seat belts
.Steering wheel, instrument panel, ceiling
trim, or pillar garnish trim
.Inner door seals, including speakers
Your dealer and the service manual have
information about the location of the airbag
modules and sensors, sensing and diagnostic
module, and airbag wiring along with the
proper replacement procedures.
In addition, the vehicle has a passenger
sensing system for the front outboard
passenger position, which includes sensors
that are part of the passenger seat. The
passenger sensing system may not operate
properly if the original seat trim is replaced
with non-GM covers, upholstery or trim,
or with GM covers, upholstery or trim
designed for a different vehicle. Any object,
such as an aftermarket seat heater or a
comfort-enhancing pad or device, installed
under or on top of the seat fabric, could
also interfere with the operation of the
passenger sensing system. This could either
prevent proper deployment of the passenger
airbag(s) or prevent the passenger sensing

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Seats and Restraints 61
system from properly turning off the
passenger airbag(s). SeePassenger Sensing
System 057.
If the vehicle must be modified because you
have a disability and have questions about
whether the modifications will affect the
vehicle’s airbag system, or if you have
questions about whether the airbag system
will be affected if the vehicle is modified for
any other reason, call Customer Assistance.
See Customer Assistance Offices 0310.
Airbag System Check
The airbag system does not need regularly
scheduled maintenance or replacement.
Make sure the airbag readiness light is
working. See Airbag Readiness Light 084.
Caution
If an airbag covering is damaged, opened,
or broken, the airbag may not work
properly. Do not open or break the airbag
coverings. If there are any opened or
broken airbag coverings, have the airbag
covering and/or airbag module replaced.
For the location of the airbags, see Where
Are the Airbags? 054. See your dealer
for service.
Replacing Airbag System Parts
after a Crash
{Warning
A crash can damage the airbag systems
in the vehicle. A damaged airbag system
may not properly protect you and your
passenger(s) in a crash, resulting in
serious injury or even death. To help
make sure the airbag systems are
working properly after a crash, have
them inspected and any necessary
replacements made as soon as possible.
If an airbag inflates, you will need to
replace airbag system parts. See your dealer
for service.
If the airbag readiness light stays on after
the vehicle is started or comes on when you
are driving, the airbag system may not work
properly. Have the vehicle serviced right
away. See Airbag Readiness Light 084.
Child Restraints
Older Children
Older children who have outgrown booster
seats should wear the vehicle’s seat belts.
The manufacturer instructions that come
with the booster seat state the weight and
height limitations for that booster. Use a
booster seat with a lap-shoulder belt until
the child passes the fit test below:
.Sit all the way back on the seat. Do the
knees bend at the seat edge? If yes,
continue. If no, return to the booster seat.
.Buckle the lap-shoulder belt. Does the
shoulder belt rest on the shoulder? If yes,
continue. If no, return to the booster seat.

Chevrolet Corvette Owner Manual (GMNA-Localizing-U.S./Canada/Mexico-
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Instruments and Controls 73
Instruments and Controls
Controls
Steering Wheel Adjustment . . . . . . . . . . . . 74
Steering Wheel Controls . . . . . . . . . . . . . . . . 74
Heated Steering Wheel . . . . . . . . . . . . . . . . . 74
Horn . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 74
Windshield Wiper/Washer . . . . . . . . . . . . . . 74
Compass . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 75
Clock . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 75
Power Outlets . . . . . . . . . . . . . . . . . . . . . . . . . . 76
Wireless Charging . . . . . . . . . . . . . . . . . . . . . . 77
Warning Lights, Gauges, and Indicators
Warning Lights, Gauges, andIndicators . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 79
Instrument Cluster . . . . . . . . . . . . . . . . . . . . . 79
Speedometer . . . . . . . . . . . . . . . . . . . . . . . . . . . 82
Odometer . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 82
Trip Odometer . . . . . . . . . . . . . . . . . . . . . . . . . . 82
Tachometer . . . . . . . . . . . . . . . . . . . . . . . . . . . . 82
Fuel Gauge . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 83
Engine Coolant Temperature Gauge . . . . 83
Transmission Temperature Gauge . . . . . . 83
Seat Belt Reminders . . . . . . . . . . . . . . . . . . . . 84
Airbag Readiness Light . . . . . . . . . . . . . . . . . 84
Passenger Airbag Status Indicator . . . . . . 85 Charging System Light . . . . . . . . . . . . . . . . . 85
Malfunction Indicator Lamp (Check
Engine Light) . . . . . . . . . . . . . . . . . . . . . . . . . 86
Front Lift System Light . . . . . . . . . . . . . . . . . 87
Brake System Warning Light . . . . . . . . . . . 87
Electric Parking Brake Light . . . . . . . . . . . . . 88
Service Electric Parking Brake Light . . . . . 88
Antilock Brake System (ABS) Warning Light . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 88
Performance Shifting Light . . . . . . . . . . . . . 89
Traction Off Light . . . . . . . . . . . . . . . . . . . . . . 89
Traction Control System (TCS)/Electronic Stability Control Light . . . . . . . . . . . . . . . . 89
Electronic Stability Control (ESC) Off Light . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 90
Tire Pressure Light . . . . . . . . . . . . . . . . . . . . . 90
Engine Oil Pressure Light . . . . . . . . . . . . . . . 90
Security Light . . . . . . . . . . . . . . . . . . . . . . . . . . . 91
High-Beam On Light . . . . . . . . . . . . . . . . . . . . 91
Lamps On Reminder . . . . . . . . . . . . . . . . . . . . 91
Cruise Control Light . . . . . . . . . . . . . . . . . . . . . 91
Door Ajar Light . . . . . . . . . . . . . . . . . . . . . . . . . 91
Information Displays
Driver Information Center (DIC) . . . . . . . . . 92
Head-Up Display (HUD) . . . . . . . . . . . . . . . . . 93
Vehicle Messages
Vehicle Messages . . . . . . . . . . . . . . . . . . . . . . . 97
Engine Power Messages . . . . . . . . . . . . . . . . 97
Vehicle Speed Messages . . . . . . . . . . . . . . . . 97
Vehicle Personalization
Vehicle Personalization . . . . . . . . . . . . . . . . . 97
Universal Remote System
Universal Remote System . . . . . . . . . . . . . 102
Universal Remote System Programming . . . . . . . . . . . . . . . . . . . . . . . . 102
Universal Remote System Operation . . . . . . . . . . . . . . . . . . . . . . . . . . . 104

Chevrolet Corvette Owner Manual (GMNA-Localizing-U.S./Canada/Mexico-
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78 Instruments and Controls
3. A green$next toVwill appear on the
infotainment display. This indicates that
the smartphone is properly positioned
and charging. If
$turns yellow, ensure
that the charging pad is clear of any
objects and that the smartphone is
capable of wireless charging before
repositioning it. If placed in the charging
pocket and
$does not appear, remove
the smartphone from the pocket, and
turn it 180 degrees.
The smartphone may become warm
during charging. This is normal. In
warmer temperatures, the speed of
charging may be reduced.
Software Acknowledgements
Certain Wireless Charging Module product
from LG Electronics, Inc. ("LGE") contains the
open source software detailed below. Refer
to the indicated open source licenses (as are
included following this notice) for the terms
and conditions of their use. OSS Notice Information
To obtain the source code that is
contained in this product, please visit
http://opensource.lge.com. In addition to
the source code, all referred license terms,
warranty disclaimers and copyright notices
are available for download. LG Electronics
will also provide open source code to you
on CD-ROM for a charge covering the cost of
performing such distribution (such as the
cost of media, shipping, and handling) upon
e-mail request to [email protected]. This
offer is valid for three (3) years from the
date on which you purchased the product.
Freescale-WCT library
Copyright (c) 2012-2014 Freescale
Semiconductor, Inc.. All rights reserved.
1. Redistributions of source code must retain the above copyright notice, this
list of conditions and the following
disclaimer.
2. Redistributions in binary form must reproduce the above copyright notice,
this list of conditions and the following
disclaimer in the documentation and/or
other materials provided with the
distribution. 3. Neither the name of the copyright holder
nor the names of its contributors may be
used to endorse or promote products
derived from this software without
specific prior written permission.
THIS SOFTWARE IS PROVIDED BY THE
COPYRIGHT HOLDERS AND CONTRIBUTORS
"AS IS" AND ANY EXPRESS OR IMPLIED
WARRANTIES, INCLUDING, BUT NOT LIMITED
TO, THE IMPLIED WARRANTIES OF
MERCHANTABILITY AND FITNESS FOR A
PARTICULAR PURPOSE ARE DISCLAIMED. IN
NO EVENT SHALL THE COPYRIGHT HOLDER
OR CONTRIBUTORS BE LIABLE FOR ANY
DIRECT, INDIRECT, INCIDENTAL, SPECIAL,
EXEMPLARY, OR CONSEQUENTIAL DAMAGES
(INCLUDING, BUT NOT LIMITED TO,
PROCUREMENT OF SUBSTITUTE GOODS OR
SERVICES; LOSS OF USE, DATA, OR PROFITS;
OR BUSINESS INTERRUPTION) HOWEVER
CAUSED AND ON ANY THEORY OF LIABILITY,
WHETHER IN CONTRACT, STRICT LIABILITY, OR
TORT (INCLUDING NEGLIGENCE OR
OTHERWISE) ARISING IN ANY WAY OUT OF
THE USE OF THIS SOFTWARE, EVEN IF
ADVISED OF THE POSSIBILITY OF SUCH
DAMAGE.

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Instruments and Controls 83
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.
.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. See
Engine 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.

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Instruments and Controls 85
{Warning
If the airbag readiness light stays on
after the vehicle is started or comes on
while driving, it means the airbag system
might not be working properly. The
airbags in the vehicle might not inflate in
a crash, or they could even inflate
without a crash. To help avoid injury,
have the vehicle serviced right away.
If there is a problem with the airbag
system, a Driver Information Center (DIC)
message may also come on.
Passenger Airbag Status Indicator
The vehicle has a passenger sensing system.
See Passenger Sensing System 057 for
important safety information. The overhead
console has a passenger airbag status
indicator.
United States
Canada and Mexico
When the vehicle is started, the passenger
airbag status indicator will light ON and OFF,
or the symbols for on and off, for several
seconds as a system check. Then, after
several more seconds, the status indicator
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. See
Airbag Readiness Light 084
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.

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86 Instruments and Controls
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. Continuous
driving may stall the vehicle abruptly.
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. SeeIgnition
Positions 0192.
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
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
(Continued)
Caution (Continued)
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 Modifications 0231.
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.

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Instruments and Controls 87
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”
underFilling the Tank 0226. 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 0225.
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
0 228. 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.
.Critical emission control systems have not
been completely diagnosed. If this
happens, the vehicle would not be ready
for inspection and may require
several days of routine driving before the
system is ready for inspection. This can
happen if the 12-volt battery has recently
been replaced or run down, or if the
vehicle has been recently serviced. See your dealer if the vehicle will not pass
or cannot be made ready for the test.
Front Lift System Light
If equipped, this light will flash to indicate
when the front of the vehicle is being raised
or lowered. An up or down arrow in the
light will display, depending on the direction
of movement. The light will stay lit while
the front is fully raised.
Brake System Warning Light
MetricEnglish

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88 Instruments and Controls
This light should come on briefly when the
vehicle is turned on. If it does not come on
then, have it fixed so it will be ready to
warn you if there is a problem.
If the light comes on and stays on at start
up, there is a brake problem. Have the brake
system inspected right away.
If the light comes on while driving, pull off
the road and stop carefully. The brake pedal
might be harder to push, or the brake pedal
may go closer to the floor. It could take
longer to stop. If the light is still on, have
the vehicle towed for service. SeeTowing
the Vehicle 0281.
{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.
Electric Parking Brake Light
MetricEnglish
This light comes on when the parking brake
is applied. If the light continues flashing
after the parking brake is released, or while
driving, there is a problem with the Electric
Parking Brake system. A message may also
display in the Driver Information
Center (DIC).
If the light does not come on, or remains
flashing, see your dealer.
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). See Electric Parking
Brake 0204.
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.

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Instruments and Controls 89
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.
SeeBrake System Warning Light 087.
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 0207.
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.
See Traction Control/Electronic Stability
Control 0205.
Traction Control System (TCS)/
Electronic Stability Control Light
If equipped, the Electronic Stability Control
(ESC) or TCS indicator/warning light comes
on briefly when the engine is started.
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 have been
disabled.
If the indicator/warning light is on and
flashing, the TCS and/or the ESC system is
actively working.
See Traction Control/Electronic Stability
Control 0205.