2020 CHEVROLET CORVETTE check oil

Chevrolet Corvette Owner Manual (GMNA-Localizing-U.S./Canada/Mexico-
12470550) - 2020 - CRC - 4/23/20
86 Instruments and Controls
Instruments and
Controls
Controls
Steering Wheel Adjustment . . . . 87
Steering Wheel Controls . . . . . . . 87
Heated Steering Wheel . . . . . . . . 87
Horn . . . . . . . . . . . . . . . . . . . . . . . . . . . 87
Windshield Wiper/Washer . . . . . . 87
Compass . . . . . . . . . . . . . . . . . . . . . . 88
Clock . . . . . . . . . . . . . . . . . . . . . . . . . . 89
Power Outlets . . . . . . . . . . . . . . . . . 89
Wireless Charging . . . . . . . . . . . . . 90
Warning Lights, Gauges, and
Indicators
Warning Lights, Gauges, andIndicators . . . . . . . . . . . . . . . . . . . . 93
Instrument Cluster . . . . . . . . . . . . . 94
Speedometer . . . . . . . . . . . . . . . . . . 98
Odometer . . . . . . . . . . . . . . . . . . . . . . 98
Trip Odometer . . . . . . . . . . . . . . . . . 98
Tachometer . . . . . . . . . . . . . . . . . . . . 98
Fuel Gauge . . . . . . . . . . . . . . . . . . . . 98
Engine Coolant Temperature Gauge . . . . . . . . . . . . . . . . . . . . . . . . 99
Transmission Temperature Gauge . . . . . . . . . . . . . . . . . . . . . . . . 99 Seat Belt Reminders . . . . . . . . . . . 99
Airbag Readiness Light . . . . . . . 100
Passenger Airbag Status
Indicator . . . . . . . . . . . . . . . . . . . . 100
Charging System Light . . . . . . . 101
Malfunction Indicator Lamp
(Check Engine Light) . . . . . . . . 102
Front Lift System Light . . . . . . . 103
Brake System Warning Light . . . . . . . . . . . . . . . . . . . . . . . . 104
Electric Parking Brake Light . . . . . . . . . . . . . . . . . . . . . . . . 104
Service Electric Parking Brake Light . . . . . . . . . . . . . . . . . . . . . . . . 105
Antilock Brake System (ABS) Warning Light . . . . . . . . . . . . . . . 105
Traction Off Light . . . . . . . . . . . . . 105
Traction Control System (TCS)/ Electronic Stability Control
Light . . . . . . . . . . . . . . . . . . . . . . . . 106
Electronic Stability Control (ESC) Off Light . . . . . . . . . . . . . . 106
Tire Pressure Light . . . . . . . . . . . 106
Engine Oil Pressure Light . . . . 107
Security Light . . . . . . . . . . . . . . . . . 107
High-Beam On Light . . . . . . . . . . 107
Lamps On Reminder . . . . . . . . . 108
Cruise Control Light . . . . . . . . . . 108
Door Ajar Light . . . . . . . . . . . . . . . 108
Information Displays
Driver Information Center (DIC) . . . . . . . . . . . . . . . . 108
Head-Up Display (HUD) . . . . . . 110
Vehicle Messages
Vehicle Messages . . . . . . . . . . . . 114
Engine Power Messages . . . . . 115
Vehicle Speed Messages . . . . . 115
Vehicle Personalization
Vehicle Personalization . . . . . . . 116
Universal Remote System
Universal Remote System . . . . 121
Universal Remote System Programming . . . . . . . . . . . . . . . 121
Universal Remote System Operation . . . . . . . . . . . . . . . . . . . 123

Chevrolet Corvette Owner Manual (GMNA-Localizing-U.S./Canada/Mexico-
12470550) - 2020 - CRC - 4/23/20
Instruments and Controls 107
and inflate the tires to the pressure
value shown on the Tire and
Loading Information label. SeeTire
Pressure 0253.
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 0256.
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
(Continued)
Caution (Continued)
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. SeeImmobilizer Operation
0 28.
High-Beam On Light

Chevrolet Corvette Owner Manual (GMNA-Localizing-U.S./Canada/Mexico-
12470550) - 2020 - CRC - 4/23/20
Driving and Operating 151
Danger (Continued)
loss of control of the vehicle,
which could injure or kill you or
others. Always drive safely.
Participating in track events or other
competitive driving without following
the instructions provided may affect
the vehicle warranty. See the
warranty manual before using the
vehicle for racing or other
competitive driving. See Competitive
Driving Mode 0192.
Be sure to follow all service
procedures before driving the
vehicle at track events or
competitively.
{Warning
Prior to each track event and
again before returning to public
roads, tighten the wheel nuts with
a torque wrench to the proper
torque specification. Wheel nuts (Continued)
Warning (Continued)
that are improperly or incorrectly
tightened can cause the wheels
to become loose or come off,
resulting in a crash. See
Capacities and Specifications
0299 for wheel nut torque
specifications.
If equipped, the front license plate
bracket should be removed and
replaced with the aero cover for
track use.
Engine Sound Management
Setting Caution
Do not place the vehicle in
Engine Sound Management –
Stealth mode. Damage could
result to exhaust valve actuators.
Engine Oil
Caution
If the vehicle is used for track
events and competitive driving,
the engine may use more oil than
it would with normal use. Low oil
levels can damage the engine.
Check the oil level often and
maintain the proper level. See
Engine Oil0218.
Check the oil level often during track
events and competitive driving. See
“Checking the Engine Oil" in Engine
Oil 0218.
Fuel
Unleaded gasoline, rated at
93 octane or higher, is required.

Chevrolet Corvette Owner Manual (GMNA-Localizing-U.S./Canada/Mexico-
12470550) - 2020 - CRC - 4/23/20
152 Driving and Operating
Caution
Some high octane fuels contain
additives and compounds that
may damage the vehicle and void
the vehicle warranty. See
Prohibited Fuels0205.
Dual Clutch Transmission
Fluid
The transmission fluid and external
filter should be changed after every
24 hours of track usage. If prompted
by the transmission fluid life monitor
that remaining fluid life is low, the
fluid and external filter should be
changed as soon as possible.
Add an additional 2 L (2 qt) of DCT
transmission fluid prior to track
usage. It is not required to remove
the additional 2 L (2 qt) of DCT fluid.
Any transmission level set or
change should be performed at your
dealer.
Brakes
Brake Fluid
Replace existing brake fluid with a
qualified high performance 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 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. The driver should
immediately start a cool down lap if
on the track. If this message
displays, take the vehicle to be
serviced at your dealer.

Chevrolet Corvette Owner Manual (GMNA-Localizing-U.S./Canada/Mexico-
12470550) - 2020 - CRC - 4/23/20
164 Driving and Operating
.Avoid driving at any one
constant speed, fast or slow,
including the use of cruise
control.
. Avoid downshifting to brake or
slow the vehicle when the
engine speed will exceed
4000 rpm.
. Do not let the engine labor.
Never lug the engine. This rule
applies at all times, not just
during the break-in period.
For the first 2 414 km (1,500 mi):
. Do not participate in track
events, sport driving schools,
or similar activities.
. Check engine oil with every
refueling and add if necessary.
Oil and fuel consumption may be
higher than normal.
Front Air Dam (and
Splitter)
If equipped, the front air dam and
splitter have minimal ground
clearance. Under normal operation, the
components will occasionally
contact some road surfaces (speed
bumps, driveway ramps, etc.). This
can be heard inside the vehicle as a
scraping noise. This is normal and
does not indicate a problem.
Use care when approaching bumps
or objects on road surfaces and
avoid them when possible.
If equipped, the Front Lift System
may be used to increase front air
dam or splitter clearance. See
Front
Lift System 0191.
Composite Materials
This vehicle may be equipped with
parts containing carbon fiber,
sheet-molding compound, or other
composite materials.
Dealer-installed accessories may
also contain composite materials.
These parts and accessories may
include the splitter or rocker
extensions.
{Warning
Exposed edges of parts
containing carbon fiber and other
composite materials can be
sharp. Contact with these parts
could result in injury. Use caution
to avoid contacting these parts,
including when washing the
vehicle. If the parts are damaged,
replace the parts promptly with
replacements from your dealer.
{Warning
Rocker extensions may break
under pressure, resulting in
property damage or injury. Do not
stand on the rocker extension or
use it as a step.

Chevrolet Corvette Owner Manual (GMNA-Localizing-U.S./Canada/Mexico-
12470550) - 2020 - CRC - 4/23/20
Vehicle Care 209
Vehicle Care
General Information
General Information . . . . . . . . . . 210
California Proposition65 Warning . . . . . . . . . . . . . . . . . 210
California Perchlorate Materials Requirements . . . . . . . . . . . . . . . 211
Accessories and Modifications . . . . . . . . . . . . . . . . 211
Lifting the Vehicle . . . . . . . . . . . . . 211
Vehicle Checks
Doing Your Own Service Work . . . . . . . . . . . . . . . 213
Underhood Compartment Overview . . . . . . . . . . . . . . . . . . . . 214
Engine Compartment Overview . . . . . . . . . . . . . . . . . . . . 215
Engine Oil . . . . . . . . . . . . . . . . . . . . 218
Engine Oil Life System . . . . . . . 221
Dual Clutch Transmission Fluid . . . . . . . . . . . . . . . . . . . . . . . . 222
Dual Clutch Transmission Fluid Life System . . . . . . . . . . . . . . . . . 223
Engine Air Filter Life System . . . . . . . . . . . . . . . . . . . . . . 224
Engine Air Cleaner/Filter . . . . . . 224
Cooling System . . . . . . . . . . . . . . 226 Engine Overheating . . . . . . . . . . 230
Washer Fluid . . . . . . . . . . . . . . . . . 231
Brakes . . . . . . . . . . . . . . . . . . . . . . . 232
Brake Fluid . . . . . . . . . . . . . . . . . . . 233
Battery - North America . . . . . . 234
Park Brake and P (Park)
Mechanism Check . . . . . . . . . . 235
Wiper Blade Replacement . . . . 236
Windshield Replacement . . . . . 236
Gas Strut(s) . . . . . . . . . . . . . . . . . . 237
Headlamp Aiming
Front Headlamp Aiming . . . . . . 238
Bulb Replacement
LED Lighting . . . . . . . . . . . . . . . . . 238
Electrical System
Electrical System Overload . . . 239
Fuses and Circuit Breakers . . . 239
Instrument Panel Fuse Block . . . . . . . . . . . . . . . . . . . . . . . . 239
Rear Compartment Fuse Block . . . . . . . . . . . . . . . . . . . . . . . . 242
Wheels and Tires
Tires . . . . . . . . . . . . . . . . . . . . . . . . . . 245
All-Season Tires . . . . . . . . . . . . . . 246
Winter Tires . . . . . . . . . . . . . . . . . . 247
Run-Flat Tires . . . . . . . . . . . . . . . . 247
Low-Profile Tires . . . . . . . . . . . . . 248
Summer Tires . . . . . . . . . . . . . . . . 248 Tire Sidewall Labeling . . . . . . . . 249
Tire Designations . . . . . . . . . . . . . 250
Tire Terminology and
Definitions . . . . . . . . . . . . . . . . . . 251
Tire Pressure . . . . . . . . . . . . . . . . . 253
Tire Pressure for High-Speed
Operation . . . . . . . . . . . . . . . . . . . 254
Tire Pressure Monitor System . . . . . . . . . . . . . . . . . . . . . . 255
Tire Pressure Monitor Operation . . . . . . . . . . . . . . . . . . . 256
Tire Inspection . . . . . . . . . . . . . . . . 259
Tire Rotation . . . . . . . . . . . . . . . . . 259
When It Is Time for New Tires . . . . . . . . . . . . . . . . . . . . . . . . 260
Buying New Tires . . . . . . . . . . . . . 261
Different Size Tires and Wheels . . . . . . . . . . . . . . . . . . . . . . 262
Uniform Tire Quality Grading . . . . . . . . . . . . . . . . . . . . . 263
Wheel Alignment and Tire Balance . . . . . . . . . . . . . . . . . . . . . 264
Wheel Replacement . . . . . . . . . . 265
Tire Chains . . . . . . . . . . . . . . . . . . . 266
If a Tire Goes Flat . . . . . . . . . . . . 267Jump Starting
Jump Starting - North America . . . . . . . . . . . . . . . . . . . . . 267

Chevrolet Corvette Owner Manual (GMNA-Localizing-U.S./Canada/Mexico-
12470550) - 2020 - CRC - 4/23/20
218 Vehicle Care
1. Engine Cooling Fan (Out ofView). See Cooling System
0 226.
2. Engine Air Cleaner/Filter (Under Access Panel). See
Engine Air Cleaner/Filter 0224.
3. Coolant Surge Tank and Pressure Cap. See Cooling
System 0226.
4. Dry Sump Engine Oil Tank and Fill Cap. See Engine Oil0218.
5. Engine Oil Dipstick. See Engine Oil 0218.
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. See Engine Oil
Life System 0221.
. 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 0215 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

Chevrolet Corvette Owner Manual (GMNA-Localizing-U.S./Canada/Mexico-
12470550) - 2020 - CRC - 4/23/20
Vehicle Care 219
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.
{Warning
The engine oil dipstick handle
may be hot; it could burn you.
Use a towel or glove to touch the
dipstick handle. 3. Remove the dipstick and wipe
it with a clean lint-free paper
towel or a cloth. Re-insert the
dipstick and push it all the way
in until it stops.
4. Remove the dipstick again and read the level on the
cross-hatched area.
5. Turn the engine off.
When to Add Engine Oil
If the oil is below the cross-hatched
area at the tip of the dipstick, add
1 L (1 qt) of the recommended oil
through the oil fill cap opening in the
oil tank fill tube and then recheck
the level. See “Selecting the Right
Engine Oil” later in this section for
the type of oil to use. For engine oil
crankcase capacity, see Capacities
and Specifications 0299.
Caution
Do not add too much oil. Oil
levels above or below the
acceptable operating range
shown on the dipstick are harmful
to the engine. If the oil level is
above the operating range (i.e.,
the engine has so much oil that
the oil level gets above the
cross-hatched area that shows
the proper operating range), the
engine could be damaged. Drain
the excess oil or limit driving of
the vehicle, and seek a service
professional to remove the
excess oil.
See Engine Compartment Overview
0 215 for the location of the external
engine oil tank dipstick and fill cap.
Add enough oil to put the level
somewhere in the proper operating
range. Push the dipstick all the way
back into the oil tank tube when
finished.