oil temperature CHEVROLET CORVETTE C8 2021 Owners Manual

Chevrolet Corvette Owner Manual (GMNA-Localizing-U.S./Canada/Mexico-
14622938) - 2021 - CRC - 9/22/20
2 Introduction
Using this Manual
To quickly locate information about the
vehicle, use the Index in the back of the
manual. It is an alphabetical list of what is
in the manual and the page number where
it can be found.
Danger, Warning, and Caution
Warning messages found on vehicle labels
and in this manual describe hazards and
what to do to avoid or reduce them.
{Danger
Danger indicates a hazard with a high
level of risk which will result in serious
injury or death.
{Warning
Warning indicates a hazard that could
result in injury or death.
Caution
Caution indicates a hazard that could
result in property or vehicle damage.
A circle with a slash through it is a safety
symbol which means“Do not,” “Do not do
this,” or“Do not let this happen.”
Symbols
The vehicle has components and labels that
use symbols instead of text. Symbols are
shown along with the text describing the
operation or information relating to a
specific component, control, message, gauge,
or indicator.
M:Shown when the owner’s manual has
additional instructions or information.
*: Shown when the service manual has
additional instructions or information.
0: Shown when there is more information
on another page — “see page.” Vehicle Symbol Chart
Here are some additional symbols that may
be found on the vehicle and what they
mean. See the features in this manual for
information.
u:
Air Conditioning System
G:Air Conditioning Refrigerant Oil
9:Airbag Readiness Light
!:Antilock Brake System (ABS)
$:Brake System Warning Light
z: Carbon Monoxide
9:Dispose of Used Components Properly
P:Do Not Apply High Pressure Water
B:Engine Coolant Temperature
_:Flame/Fire Prohibited
H: Flammable
R:Fuse Block Cover Lock Location
+:Fuses
j:ISOFIX/LATCH System Child Restraints

Chevrolet Corvette Owner Manual (GMNA-Localizing-U.S./Canada/Mexico-
14622938) - 2021 - CRC - 9/22/20
14 Keys, Doors, and Windows
.There is an emission control system
malfunction.
.The engine coolant temperature is
too high.
.The oil pressure is low.
.The 30 minutes of engine run time have
been used.
.The vehicle is not in P (Park).
Door Locks
{Warning
Unlocked doors can be dangerous.
.Passengers, especially children, can
easily open the doors and fall out of a
moving vehicle. The doors can be
unlocked and opened while the vehicle
is moving. The chance of being thrown
out of the vehicle in a crash is
increased if the doors are not locked.
So, all passengers should wear seat
belts properly and the doors should be
locked whenever the vehicle is driven.
.Young children who get into unlocked
vehicles may be unable to get out.
A child can be overcome by extreme
heat and can suffer permanent injuries(Continued)
Warning (Continued)
or even death from heat stroke.
Always lock the vehicle whenever
leaving it.
.Outsiders can easily enter through an
unlocked door when you slow down
or stop the vehicle. Locking the doors
can help prevent this from happening.
To lock or unlock a door from the outside,
press
HorIon the remote key.
For Keyless Access, hold the remote key
within 1 m (3 ft) of the door handle. Grip
and press the door handle touchpad. See
Remote Keyless Entry (RKE) System
Operation 07. This feature can be
programmed. See Vehicle Personalization
0 97.
Convertible Shown, Coupe Similar
To lock or unlock the doors from the inside,
use the driver power door lock switch.
H: Press to lock the doors. The indicator
light in the switch will illuminate when
locked.
I: Press to unlock the doors.

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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80 Instruments and Controls
Cluster 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
Performance
Press the thumbwheel to enter the
Performance menu. Scroll through the
available items.
G-force : Gives the driver an indication of
the vehicle performance in cornering. The
G-force gauge will show as an info tile on
the left side of the cluster, if selected.
Friction Bubble : A four quadrant visual
display, indicative of the four corners of the
car, with a “bubble”showing where the
most inertia is being exerted on the vehicle.
Performance Timer : Press the thumbwheel
to enter the setup menu, then select Set
Start Speed. Scroll to desired Start Speed,
then press the thumbwheel to save it. While
on this menu, to change the End Speed,
scroll to End Speed and use the thumbwheel
to scroll to desired End Speed. Press the thumbwheel to save it. On the next
acceleration, the performance timer will
record the time. Pressing the thumbwheel
while the timer is running will cancel the
timer if done before reaching the End Speed.
Lap Timer (without PDR) :
Press
Twhen
Lap Timer is displayed to start, stop, or reset
the lap timer. Press the thumbwheel while
the Lap Timer page is active to start the
timer. If the lap timer is active, pressing the
thumbwheel will stop the current lap timer
and start a new lap. Pressing the
thumbwheel within 10 seconds after
completing the last lap (Stop Lap Timer
option is displayed), the Lap Timer will stop.
Lap Timer (with PDR) : The lap times
recorded with the PDR system will
automatically be displayed in this window.
This only happens if a track has been
selected in the PDR system and a video
recording is started. See Performance Data
Recorder (PDR) 0142.
Oil Temperature : Shows the current oil
temperature in either degrees Celsius (°C) or
degrees Fahrenheit (°F).
Oil Pressure : Shows the current oil pressure
in either kilopascal (kPa) or in pounds per
square inch (psi).

Chevrolet Corvette Owner Manual (GMNA-Localizing-U.S./Canada/Mexico-
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82 Instruments and Controls
Preset info tiles shown on each layout:
Sport :G-Force, Oil Temperature
Track : Oil Pressure, Transmissions Fluid
Temperature, Tire Pressure & Tire
Temperature, Oil Temperature
Tour : Time & Outside Air Temperature, Oil
Pressure
Weather : Time & Outside Air Temperature,
Tire Status
Z-Mode : Oil Temperature, G-Force
My Mode : Economy Trend, Oil Pressure
Head-Up Display (HUD) Rotation
Press the thumbwheel while Adjust Rotation
is highlighted to enter Adjust Mode. Scroll
to adjust the angle of the HUD display.
Press the thumbwheel to confirm and save
the setting. This feature may only be
available in P (Park).
Speed Warning
The Speed Warning display allows the driver
to set a speed that they do not want to
exceed. To set the Speed Warning, press the
thumbwheel when Speed Warning is
displayed, or press the thumbwheel on the
main view to set the speed value. Scroll to
adjust the value. Press the thumbwheel to set the speed. Once the speed is set, this
feature can be turned off by pressing the
thumbwheel while viewing this page. If the
selected speed limit is exceeded, a pop-up
warning is displayed with a chime.
Software Info
Press
Twhile Software Info is highlighted
to display open source software information.
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).
See Driver 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.

Chevrolet Corvette Owner Manual (GMNA-Localizing-U.S./Canada/Mexico-
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Driving and Operating 181
prevent the brake master cylinder from
pressurizing the hydraulic system during its
automated self diagnostic tests that can
possibly occur when a door is opened or the
remote key is present.
{Caution
To avoid personal injury and/or vehicle
damage, always disconnect the battery
before performing service work on the
hydraulic brake system. Bleeding the
brake system with the battery connected
can lead to excessive pressurization of
the system during automatic diagnostic
tests or diagnosis of a leak or air in the
braking system. A Diagnostic Trouble
Code (DTC) may set and vehicle speed
may be limited.
Brake Fluid
Replace existing brake fluid with a qualified
high performance DOT 4 brake fluid from a
sealed container. Brake fluid with a dry
boiling point >310 °C (590 °F) is qualified.
If high performance brake fluid is used,
replace it with GM approved brake fluid
before driving on public roads. If high
performance brake fluid is in the vehicle and
the age of the brake fluid is over a month old or unknown, replace the brake fluid
before track events and competitive driving.
Do not use silicone or DOT-5 brake fluids.
Check the fluid level before each competitive
driving event.
Brake System Flushing & Bleeding
The J55 brake system requires specific
processes for bleeding and fluid flushing.
These can be found in the service manual.
Properly bleeding the brake system is
required for proper operation of the
hydraulic brake system.
Brake Leak Detection
The hydraulic braking system has advanced
diagnostic capability to help detect hydraulic
leaks, trapped air, and other performance
issues. These diagnostics are active when
the hydraulic system is powered. In order to
avoid inadvertently setting a leak Diagnostic
Trouble Code (DTC), disconnect the battery
before servicing the brake system.
If the vehicle sets a DTC related to a brake
system leak, the Brake System Warning
Light will come on and vehicle speed may
be limited to 100 kph (62 mph). Any time a
leak DTC is set, the vehicle should be
inspected carefully for evidence of a leak
and should be repaired immediately. See
your dealer.
Brake Fade Warning Assist
The Brake Fade Warning Assist system
monitors the performance of the brake
system. If the system detects brake fade,
or if the brake fluid is near the boiling point,
the driver will be alerted.
The Brake Fade Warning Assist system is
designed for use with the factory-installed
brake pads or GM-approved replacement
pads. If the brake pads on the vehicle need
to be replaced, use GM-approved brake pads.
If this is not done, the brake fade warning
system may not function properly.
Stage 1 :
The Driver Information Center (DIC)
displays a “Reduce Braking to Avoid
Overheating” message and brake pedal
effort and travel is increased. When the
message displays, the driver should decrease
brake pedal pressure.
Stage 2 : The Driver Information Center
(DIC) displays a “Brakes Overheated Service
Now” message that the brake fluid
temperature is excessive and is about to
boil. The system increases brake pedal effort
and travel, and will also limit vehicle speed.

Chevrolet Corvette Owner Manual (GMNA-Localizing-U.S./Canada/Mexico-
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238 Vehicle Care
1. Engine Cooling Fan (Out of View). SeeCooling System 0245.
2. Engine Air Cleaner/Filter (Under Access Panel). See Engine Air Cleaner/Filter
0 243.
3. Coolant Surge Tank and Pressure Cap. See Cooling System 0245.
4. Dry Sump Engine Oil Tank and Fill Cap. See Engine Oil 0238.
5. Engine Oil Dipstick. See Engine Oil0238.
Engine Oil
To ensure proper engine performance and
long life, pay careful attention to engine oil.
Follow these important steps:
.Use engine oil approved to the proper
specification and of the proper viscosity
grade. See “Selecting the Right Engine
Oil” later in this section.
.Check the engine oil level regularly and
maintain the proper oil level. See
“Checking Engine Oil” and“When to Add
Engine Oil” later in this section.
.Change the engine oil at the appropriate
time. SeeEngine Oil Life System 0241.
.Always dispose of engine oil properly. See
“What to Do with Used Oil” in this
section.
Checking the Engine Oil
1. Engine Oil Dipstick
2. Engine Oil Fill Cap
Check the engine oil level regularly, every
650 km (400 mi), especially prior to a long
trip. To get an accurate reading, the vehicle
must be parked on a level ground.
The engine oil dipstick handle is a loop. See
Engine Compartment Overview 0235 for the
location.
The vehicle has a racetrack-ready dry sump
engine lubrication system. This high
performance system operates differently
than a standard engine lubrication system
and requires a special procedure when
checking the engine oil level. Follow this
procedure closely. The engine oil level must be checked when
the engine is warm. Cold oil level in the dry
sump tank may not indicate the actual
amount of oil in the system. Engine oil is
contained in an external tank, separate from
the engine. Under normal operating
conditions, the oil pan under the engine
does not store any oil. If the vehicle has
been parked for an extended period without
the engine being started, some oil will seep
back into the oil pan. This will reduce the
amount of oil held in the dry sump tank
and there could be no engine oil on the
dipstick. This is normal since the dipstick is
designed to read the engine oil level only
after the engine has run long enough to
reach normal operating temperature. Do not
add engine oil based on cold engine dipstick
readings. The engine oil level on the dipstick
must be checked while the engine is running
at idle.
To check the engine oil:
1. Turn the engine on and let it warm up to at least 80 °C (175 °F).
2. Once the engine is warm, check the oil while the engine is running at idle.

Chevrolet Corvette Owner Manual (GMNA-Localizing-U.S./Canada/Mexico-
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Vehicle Care 241
skin and nails with soap and water, or a
good hand cleaner. Wash or properly
dispose of clothing or rags containing used
engine oil. See the manufacturer's warnings
about the use and disposal of oil products.
Used oil can be a threat to the environment.
If you change your own oil, drain all the oil
from the filter before disposal. Never dispose
of oil by putting it in the trash or pouring it
on the ground, into sewers, or into streams
or bodies of water. Recycle it by taking it to
a place that collects used oil.
Engine Oil Life System
When to Change Engine Oil
This vehicle has a computer that indicates
when to change the engine oil and filter.
This is based on a combination of factors
which include engine revolutions, engine
temperature, and miles driven. Based on
driving conditions, the mileage at which an
oil change is indicated can vary
considerably. For the oil life system to work
properly, the system must be reset every
time the oil is changed.
This vehicle has a racetrack-ready dry sump
engine lubrication system. This high
performance system operates differentlythan a standard engine lubrication system
and requires a special procedure when
changing the engine oil and filter. See
Engine Oil
0238.
When the system has calculated that oil life
has been diminished, it indicates that an oil
change is necessary. A CHANGE ENGINE OIL
SOON message comes on. Change the oil as
soon as possible within the next 1 000 km
(600 mi). It is possible that, if driving under
the best conditions, the oil life system may
not indicate that an oil change is necessary
for up to a year. The engine oil and filter
must be changed at least once a year and,
at this time, the system must be reset. Your
dealer has trained service people who will
perform this work and reset the system.
It is also important to check the oil regularly
over the course of an oil drain interval and
keep it at the proper level.
If the system is ever reset accidentally, the
oil must be changed at 5 000 km (3,000 mi)
since the last oil change. Remember to reset
the oil life system whenever the oil is
changed.
How to Reset the Engine Oil Life System
Reset the system whenever the engine oil is
changed so that the system can calculate
the next engine oil change. To reset the
system: 1. Scroll through the DIC Info Pages menu until the remaining Engine Oil
percentage is displayed. See Driver
Information Center (DIC) 092.
2. Press and hold the thumbwheel on the DIC while the Oil Life display is active.
The oil life will change to 100%.
If the CHANGE ENGINE OIL SOON message
comes back on when the vehicle is started,
the engine oil life system has not reset.
Repeat the procedure.
Dual Clutch Transmission Fluid
How to Check Dual Clutch Transmission
Fluid
It is not necessary to check the transmission
fluid level. A transmission fluid leak is the
only reason for fluid loss. If a leak occurs,
take the vehicle to the dealer and have it
repaired as soon as possible.

Chevrolet Corvette Owner Manual (GMNA-Localizing-U.S./Canada/Mexico-
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242 Vehicle Care
The vehicle is not equipped with a
transmission fluid level dipstick. There is a
special procedure for checking and changing
the transmission fluid. Because this
procedure is difficult, this should be done at
the dealer. Contact the dealer for additional
information or the procedure can be found
in the service manual. To purchase a service
manual, seePublication Ordering
Information 0316.
Caution
Use of the incorrect transmission fluid
may damage the vehicle, and the
damage may not be covered by the
vehicle warranty. Always use the correct
transmission fluid. See Recommended
Fluids and Lubricants 0301.
Change the fluid and filter at the proper
intervals. See Maintenance Schedule 0293.
Be sure to use the correct fluid. See
Recommended Fluids and Lubricants 0301.
Dual Clutch Transmission Fluid Life
System
When to Change the Dual Clutch
Transmission Fluid
This vehicle has a computer that indicates
when to change the transmission fluid. This
is based on a combination of factors which
include temperature and miles driven. Based
on driving conditions, the mileage at which
a fluid change is indicated can vary
considerably. For the fluid life system to
work properly, the system must be reset
every time the fluid is changed. When the
system has calculated that fluid life has
been diminished, it indicates that a fluid
change is necessary. A CHANGE
TRANSMISSION FLUID SOON message comes
on. Change the fluid as soon as possible
within the next 1 000 km (600 mi). Failure
to change transmission fluid at required
intervals could lead to suboptimal
transmission performance. Your dealer has
trained service technicians who will change
the fluid and reset the system. If the system
is ever reset accidentally, the fluid must be
changed at 72 000 km (45,000 mi) since the
last fluid change.
How to Reset the Dual Clutch
Transmission Fluid Life System
Reset the system whenever the transmission
fluid is replaced so that the system can
calculate the next transmission fluid change.
To reset:
1. Place the vehicle in P (Park).
2. Select the Oil & Fluid Life page under the Maintenance DIC menu. See Driver
Information Center (DIC) 092.
3. Press the thumbwheel under the Oil & Fluid Life page to move to the Reset/
Disable display area. Select Reset
Transmission Fluid with the thumbwheel
scroll then press the thumbwheel. Then
press Yes to confirm the reset.
4. When the Transmission Fluid Life System is successfully reset, 100% Transmission
Fluid Life will be displayed.
Engine Air Filter Life System
If equipped, this feature provides the engine
air filter’s remaining life and best timing for
a change. The timing to change an engine
air filter depends on driving and
environmental conditions.

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Vehicle Care 245
Caution
If the air cleaner/filter is off, dirt can
easily get into the engine, which could
damage it. Always have the air cleaner/
filter in place when driving.
Cooling System
The cooling system allows the engine to
maintain the correct working temperature.
Convertible
1. Engine Cooling Fans (Out of View)
2. Coolant Surge Tank with Pressure Cap
Coupe
1. Engine Cooling Fans (Out of View)
2. Coolant Surge Tank with Pressure Cap
{Warning
An underhood electric fan can start up
even when the engine is not running and
can cause injury. Keep hands, clothing,
and tools away from any underhood
electric fan.
{Warning
Do not touch heater or radiator hoses,
or other engine parts. They can be very
hot and can burn you. Do not run the
engine if there is a leak; all coolant could
leak out. That could cause an engine fire
and can burn you. Fix any leak before
driving the vehicle.
Engine Coolant
The cooling system in the vehicle is filled
with DEX-COOL engine coolant. See
Recommended Fluids and Lubricants0301.
The fluid requires changing at certain
intervals. See Maintenance Schedule 0293.
The following explains the cooling system
and how to check and add coolant when it
is low. If there is a problem with engine
overheating, see Engine Overheating 0248.
What to Use
{Warning
Plain water, or other liquids such as
alcohol, can boil before the proper
coolant mixture will. With plain water or
(Continued)