2021 CHEVROLET CORVETTE C8 instrument panel

Chevrolet Corvette Owner Manual (GMNA-Localizing-U.S./Canada/Mexico-
14622938) - 2021 - CRC - 9/22/20
Driving and Operating 193
With the ignition off, pressing the button
one time without the brake pedal applied
will place the ignition in ACC/ACCESSORY.
The ignition will switch from ACC/
ACCESSORY to off after five minutes to
prevent battery rundown.
ON/RUN/START (Green Indicator Light) :This
mode is for driving and starting. With the
ignition off and the brake pedal applied,
pressing the button once will place the
ignition in ON/RUN/START. Once engine
cranking begins, release the button. Engine
cranking will continue until the engine
starts. See Starting the Engine 0193. The
ignition will then remain in ON/RUN.
Service Mode
This power mode is available for service and
diagnostics, and to verify the proper
operation of the malfunction indicator lamp
as may be required for emission inspection
purposes. With the vehicle off and the brake
pedal not applied, pressing and holding
ENGINE START/STOP for more than
five seconds will place the vehicle in Service
Mode. The instruments and audio systems
will operate as they do in ON/RUN, but the
vehicle will not be able to be driven. The engine will not start in Service Mode. Press
ENGINE START/STOP again to turn the
vehicle off.
Starting the Engine
Caution
If you add electrical parts or accessories,
you could change the way the engine
operates. Any resulting damage would
not be covered by the vehicle warranty.
See
Add-On Electrical Equipment 0228.
Caution
Do not try to shift to P (Park) if the
vehicle is moving. If you do, you could
damage the transmission. Shift to P (Park)
only when the vehicle is stopped.
Place the transmission in P (Park) or
N (Neutral). To restart the vehicle when it is
already moving, use N (Neutral) only.
Starting the Vehicle
The remote key must be inside the vehicle
for the ignition to work. Cell phone chargers can interfere with the
operation of the Keyless Access system.
Battery chargers should not be plugged in
when starting or turning off the engine.
1. Press the brake pedal, then press ENGINE START/STOP on the instrument panel.
If there is no remote key in the vehicle
or if there is something causing
interference with it, the Driver
Information Center (DIC) will display a
message.
2. When the engine begins cranking, let go of the button and the engine cranks
automatically until it starts.
If the battery in the remote key is weak,
the DIC will display a message. The
vehicle can still be driven.
See “Starting the Vehicle with a Low
Transmitter Battery” underRemote
Keyless Entry (RKE) System Operation 07
. If the remote key battery is dead,
insert it into the cupholder transmitter
pocket to enable engine starting.
3. Do not race the engine immediately after starting it. Operate the engine and
transmission gently until the oil warms
up and lubricates all moving parts.

Chevrolet Corvette Owner Manual (GMNA-Localizing-U.S./Canada/Mexico-
14622938) - 2021 - CRC - 9/22/20
194 Driving and Operating
4. If the engine does not start and no DICmessage is displayed, wait 15 seconds
before trying again to let the cranking
motor cool down.
If the engine does not start after five to
10 seconds, especially in very cold
weather (below −18 °C or 0 °F), it could
be flooded with too much gasoline. Try
pushing the accelerator pedal all the way
to the floor while cranking for up to
15 seconds maximum. Wait at least
15 seconds between each try, to allow
the cranking motor to cool down. When
the engine starts, let go of the
accelerator. If the vehicle starts briefly
but then stops again, repeat these steps.
This clears the extra gasoline from the
engine.
Caution
Cranking the engine for long periods of
time, by pressing ENGINE START/STOP
immediately after cranking has ended,
can overheat and damage the cranking
motor, and drain the battery. Wait at
least 15 seconds between each try, to let
the cranking motor cool down.
Stopping the Engine
Shift to P (Park) and press and hold ENGINE
START/STOP on the instrument panel, until
the engine shuts off. If the transmission is
not in P (Park), the engine shuts off and the
vehicle goes into the accessory mode. The
DIC displays SHIFT TO PARK. When shifted to
P (Park) the vehicle turns off.
If the remote key is not detected inside the
vehicle when it is turned off, the DIC
displays a message.
Retained Accessory Power (RAP)
When the ignition is turned from on to off,
the following features (if equipped) will
continue to function for up to 10 minutes,
or until the driver door is opened. These
features will also work when the ignition is
in RUN or ACC/ACCESSORY:
.Infotainment System
.Power Windows (during RAP this
functionality will be lost when any door
is opened)
.Sunroof (during RAP this functionality will
be lost when any door is opened)
.Auxiliary Power Outlet
.Audio System
.OnStar System
Shifting Into Park
{Warning
It is dangerous to get out of the vehicle
if the vehicle is not in P (Park) with the
parking brake set. The vehicle can roll.
Do not leave the vehicle when the engine
is running. If you have left the engine
running, the vehicle can move suddenly.
You or others could be injured. To be
sure the vehicle will not move, even
when you are on fairly level ground,
always set the parking brake and shift to
P (Park).
To shift into P (Park): 1. Hold the brake pedal down and set the parking brake. See Electric Parking Brake
0 204.
2. Press the P (Park) switch on the center console. See Dual Clutch Transmission
0 197.
3. Press ENGINE START/STOP to turn the engine off.
If the vehicle is shifted into P (Park) on a
hill, the Electric Parking Brake (EPB) may
apply automatically. The EPB may not

Chevrolet Corvette Owner Manual (GMNA-Localizing-U.S./Canada/Mexico-
14622938) - 2021 - CRC - 9/22/20
230 Vehicle Care
Vehicle Care
General Information
General Information . . . . . . . . . . . . . . . . . . . 231
California Proposition 65 Warning . . . . . 231
California Perchlorate MaterialsRequirements . . . . . . . . . . . . . . . . . . . . . . . . 231
Accessories and Modifications . . . . . . . . . 231
Lifting the Vehicle . . . . . . . . . . . . . . . . . . . . . 232
Vehicle Checks
Doing Your Own Service Work . . . . . . . . . 233
Underhood Compartment Overview . . . 234
Engine Compartment Overview . . . . . . . . 235
Engine Oil . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 238
Engine Oil Life System . . . . . . . . . . . . . . . . . 241
Dual Clutch Transmission Fluid . . . . . . . . 241
Dual Clutch Transmission Fluid Life System . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 242
Engine Air Filter Life System . . . . . . . . . . 242
Engine Air Cleaner/Filter . . . . . . . . . . . . . . . 243
Cooling System . . . . . . . . . . . . . . . . . . . . . . . . 245
Engine Overheating . . . . . . . . . . . . . . . . . . . 248
Washer Fluid . . . . . . . . . . . . . . . . . . . . . . . . . . 249
Brakes . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 249
Brake Fluid . . . . . . . . . . . . . . . . . . . . . . . . . . . . 250
Battery - North America . . . . . . . . . . . . . . . 251 Park Brake and P (Park) Mechanism
Check . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 252
Wiper Blade Replacement . . . . . . . . . . . . . 252
Windshield Replacement . . . . . . . . . . . . . . . 253
Gas Strut(s) . . . . . . . . . . . . . . . . . . . . . . . . . . . . 253
Headlamp Aiming
Front Headlamp Aiming . . . . . . . . . . . . . . . 254
Bulb Replacement
LED Lighting . . . . . . . . . . . . . . . . . . . . . . . . . . . 254
Electrical System
Electrical System Overload . . . . . . . . . . . . 254
Fuses and Circuit Breakers . . . . . . . . . . . . . 255
Instrument Panel Fuse Block . . . . . . . . . . . 255
Rear Compartment Fuse Block . . . . . . . . . 258
Wheels and Tires
Tires . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 261
All-Season Tires . . . . . . . . . . . . . . . . . . . . . . . . 261
Winter Tires . . . . . . . . . . . . . . . . . . . . . . . . . . . 262
Run-Flat Tires . . . . . . . . . . . . . . . . . . . . . . . . . . 262
Low-Profile Tires . . . . . . . . . . . . . . . . . . . . . . . 263
Summer Tires . . . . . . . . . . . . . . . . . . . . . . . . . 263
Tire Sidewall Labeling . . . . . . . . . . . . . . . . . 263
Tire Designations . . . . . . . . . . . . . . . . . . . . . . 264
Tire Terminology and Definitions . . . . . . 265 Tire Pressure . . . . . . . . . . . . . . . . . . . . . . . . . . 267
Tire Pressure for High-Speed
Operation . . . . . . . . . . . . . . . . . . . . . . . . . . . 268
Tire Pressure Monitor System . . . . . . . . . 269
Tire Pressure Monitor Operation . . . . . . 270
Tire Inspection . . . . . . . . . . . . . . . . . . . . . . . . . 272
Tire Rotation . . . . . . . . . . . . . . . . . . . . . . . . . . 272
When It Is Time for New Tires . . . . . . . . 273
Buying New Tires . . . . . . . . . . . . . . . . . . . . . 274
Different Size Tires and Wheels . . . . . . . . 275
Uniform Tire Quality Grading . . . . . . . . . . 275
Wheel Alignment and Tire Balance . . . . 277
Wheel Replacement . . . . . . . . . . . . . . . . . . . 277
Tire Chains . . . . . . . . . . . . . . . . . . . . . . . . . . . . 278
If a Tire Goes Flat . . . . . . . . . . . . . . . . . . . . . 278
Jump Starting
Jump Starting - North America . . . . . . . . 278
Towing the Vehicle
Towing the Vehicle . . . . . . . . . . . . . . . . . . . . 281
Recreational Vehicle Towing . . . . . . . . . . . 283
Appearance Care
Exterior Care . . . . . . . . . . . . . . . . . . . . . . . . . . 283
Interior Care . . . . . . . . . . . . . . . . . . . . . . . . . . 288
Floor Mats . . . . . . . . . . . . . . . . . . . . . . . . . . . . 290

Chevrolet Corvette Owner Manual (GMNA-Localizing-U.S./Canada/Mexico-
14622938) - 2021 - CRC - 9/22/20
Vehicle Care 255
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 fuses. This
greatly reduces the chance of damage
caused by electrical problems.
{Danger
Fuses and circuit breakers are marked
with their ampere rating. Do not exceed
the specified amperage rating when
replacing fuses and circuit breakers. Use
of an oversized fuse or circuit breaker can
result in a vehicle fire. You and others
could be seriously injured or killed.
{Warning
Installation or use of fuses that do not
meet GM’s original fuse specifications is
dangerous. The fuses could fail, and result
in a fire. You or others could be injured
or killed, and the vehicle could be
damaged.
See Accessories and Modifications 0231 and
General Information 0231.
To check a fuse, look at the silver-colored
band inside the fuse. If the band is broken
or melted, replace the fuse. Be sure to
replace a bad fuse with a new one of the
identical size and rating.
Fuses of the same amperage can be
temporarily borrowed from another fuse
location, if a fuse goes out. Replace the fuse
as soon as possible.
Instrument Panel Fuse Block
The instrument panel fuse block is behind
the glove box. The glove box can be
accessed by unlatching the door damper and
squeezing the pivot to release the damper
ring. Pull the glove box bin side walls in to
release the door stops. Then turn the door
until the hinge hooks release from
hinge pin.

Chevrolet Corvette Owner Manual (GMNA-Localizing-U.S./Canada/Mexico-
14622938) - 2021 - CRC - 9/22/20
256 Vehicle Care
To Access:1. Open the top cover.
2. Remove the top cover by pushing inward on the latch.
3. Pull the cover upward.
To Install: 1. Insert the tabs on the back of the cover into the slots in the instrument panel.
2. Align the clip with the slots in the instrument panel.
3. Press the cover into place.
See your dealer if additional assistance is
needed.
The vehicle may not be equipped with all of
the fuses and relays shown. Fuses Usage
F1 –
F2 Front wiper
F3 Cooling fan 1
F4 –
F5 Cooling fan 2
F6 Front blower Fuses Usage
F7 Automatic level control
F8 Shifter interface board module
F9 –
F10 Display IP cluster/HVAC/ Center stack module
F11 USB
F12 –

Chevrolet Corvette Owner Manual (GMNA-Localizing-U.S./Canada/Mexico-
14622938) - 2021 - CRC - 9/22/20
258 Vehicle Care
RelaysUsage
K6 Front trunk release relay 1 K7 –
K8 –
K9 Front trunk release relay 2
K10 Wiper relayRear Compartment Fuse Block
The rear compartment fuse block is in the
rear of the vehicle in between the seats.
To Access: 1. Open top cover.
2. Remove the top cover by pushing inward on the latch.
3. Pull the cover upward. To Install:
1. Insert the tabs on the back of the cover into the slots in the rear compartment.
2. Align the clip with the slots in the instrument panel.
3. Press the cover into place.
See your dealer if additional assistance is
needed.

Chevrolet Corvette Owner Manual (GMNA-Localizing-U.S./Canada/Mexico-
14622938) - 2021 - CRC - 9/22/20
Vehicle Care 259
The vehicle may not be equipped with all of
the fuses, relays, and features shown.Fuses Usage
1 Driver memory seat module/Power seat
2 Driver heated seat
3 Passenger memory seat module/Power seat
4 Passenger heated seat Fuses
Usage
5 Transmission control module
6 Rear park assist 7 Power sounder module/ Pedestrian friendly alert
function
8 Side blind zone alert
9 Column lock module Fuses
Usage
10 Engine control module/ Air conditioning
11 –
12 Lithium ion battery module
13 Active fuel management
14 Seat fan 15 –
16 Exterior lighting module 17 Instrument panel cluster/Shifter interface
board/Transmission
control module/
Electronic brake control
module
18 Engine control module
19 –
20 Sensing and diagnostic module/Inside rear view
mirror
21 Exhaust valve solenoid
22 Fuel pump/Fuel tank zone module

Chevrolet Corvette Owner Manual (GMNA-Localizing-U.S./Canada/Mexico-
14622938) - 2021 - CRC - 9/22/20
290 Vehicle Care
Caution
Do not attach a device with a suction cup
to the display. This may cause damage
and would not be covered by the vehicle
warranty.
Instrument Panel, Leather, Vinyl, Other
Plastic Surfaces, Low Gloss Paint
Surfaces, and Natural Open Pore Wood
Surfaces
Use a soft microfiber cloth dampened with
water to remove dust and loose dirt. For a
more thorough cleaning, use a soft
microfiber cloth dampened with a mild soap
solution.
Caution
Soaking or saturating leather, especially
perforated leather, as well as other
interior surfaces, may cause permanent
damage. Wipe excess moisture from
these surfaces after cleaning and allow
them to dry naturally. Never use heat,
steam, or spot removers. Do not use
cleaners that contain silicone or
wax-based products. Cleaners containing
(Continued)
Caution (Continued)
these solvents can permanently change
the appearance and feel of leather or soft
trim, and are not recommended.
Do not use cleaners that increase gloss,
especially on the instrument panel. Reflected
glare can decrease visibility through the
windshield under certain conditions.
Caution
Use of air fresheners may cause
permanent damage to plastics and
painted surfaces. If an air freshener
comes in contact with any plastic or
painted surface in the vehicle, blot
immediately and clean with a soft cloth
dampened with a mild soap solution.
Damage caused by air fresheners would
not be covered by the vehicle warranty.
Convenience Net
If equipped, wash with warm water and
mild detergent. Do not use chlorine bleach.
Rinse with cold water, and then dry
completely.
Care of Seat Belts
Keep belts clean and dry.
{Warning
Do not bleach or dye seat belt webbing.
It may severely weaken the webbing. In
a crash, they might not be able to
provide adequate protection. Clean and
rinse seat belt webbing only with mild
soap and lukewarm water. Allow the
webbing to dry.
Floor Mats
{Warning
If a floor mat is the wrong size or is not
properly installed, it can interfere with
the pedals. Interference with the pedals
can cause unintended acceleration and/or
increased stopping distance which can
cause a crash and injury. Make sure the
floor mat does not interfere with the
pedals.