2020 CHEVROLET CORVETTE service

Chevrolet Corvette Owner Manual (GMNA-Localizing-U.S./Canada/Mexico-
12470550) - 2020 - CRC - 4/23/20
212 Vehicle Care
Warning (Continued)
you could be badly injured or
killed. Never get under a vehicle
when it is supported only by
a jack.
{Warning
Raising the vehicle with the jack
improperly positioned can
damage the vehicle or the vehicle
may fall and cause injury to you
or others.
If a jack is used to lift the vehicle,
follow the instructions that came
with the jack, and be sure to use the
correct lifting points to avoid
damaging the vehicle.
Caution
Lifting the vehicle improperly can
damage it and result in costly
repairs not covered by the vehicle
warranty. To lift the vehicle
properly and prevent vehicle
damage: . Be sure to place a block or
pad between the jack and
the vehicle.
. Lift only in the areas shown
in the following illustrations.
For additional information, see
your dealer and the service
manual.
Caution
The front jack pads must not
contact the rocker panels, the
front fenders, or the floor pan.
If they do, damage may occur. Lifting from the Front
–Frame
Use only a service jack with a lifting
pad diameter of 64 mm (2.5 in) or
smaller, and thick enough to make
sure the jack does not contact the
vehicle body.
Position the service jack and lifting
pad under the frame rail shipping
slot reinforcement.

Chevrolet Corvette Owner Manual (GMNA-Localizing-U.S./Canada/Mexico-
12470550) - 2020 - CRC - 4/23/20
Vehicle Care 213
Lifting from the Rear–Frame
Use only a service jack with a lifting
pad diameter of 64 mm (2.5 in) or
smaller, and thick enough to make
sure the jack does not contact the
vehicle body.
Position the service jack and lifting
pad under the frame rail shipping
slot reinforcement.
For more information, see Doing
Your Own Service Work 0213.
Vehicle Checks
Doing Your Own
Service Work
{Warning
It can be dangerous to work on
your vehicle if you do not have
the proper knowledge, service
manual, tools, or parts. Always
follow owner ’s manual procedures
and consult the service manual
for your vehicle before doing any
service work.
If doing some of your own service
work, use the proper service
manual. It tells you much more
about how to service the vehicle
than this manual can. To order the
proper service manual, see
Publication Ordering Information
0 311.
This vehicle has an airbag system.
Before attempting to do your own
service work, see Servicing the
Airbag-Equipped Vehicle 072. If equipped with remote vehicle
start, open the hatch/trunk before
performing any service work to
prevent remote starting the vehicle
accidentally. See
Remote Vehicle
Start 015.
Keep a record with all parts receipts
and list the mileage and the date of
any service work performed. See
Maintenance Records 0297.
Caution
Even small amounts of
contamination can cause damage
to vehicle systems. Do not allow
contaminants to contact the fluids,
reservoir caps, or dipsticks.

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.

Chevrolet Corvette Owner Manual (GMNA-Localizing-U.S./Canada/Mexico-
12470550) - 2020 - CRC - 4/23/20
222 Vehicle Care
This 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
changing the engine oil and filter.
SeeEngine Oil 0218.
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 OIL LIFE
percentage is displayed. See
Driver Information Center (DIC)
0108.
2. Press and hold SEL 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.
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, see Publication
Ordering Information 0311.

Chevrolet Corvette Owner Manual (GMNA-Localizing-U.S./Canada/Mexico-
12470550) - 2020 - CRC - 4/23/20
Vehicle Care 223
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
Lubricants0295.
Change the fluid and filter at the
proper intervals. See Maintenance
Schedule 0286. Be sure to use the
correct fluid. See Recommended
Fluids and Lubricants 0295.
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) 0108.
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.

Chevrolet Corvette Owner Manual (GMNA-Localizing-U.S./Canada/Mexico-
12470550) - 2020 - CRC - 4/23/20
224 Vehicle Care
Engine Air Filter Life
System
When to Change Engine Air
Filter
If equipped, this feature provides an
indication of when to change the
engine air filter. It is based on
driving conditions, which can cause
when to change to vary greatly. It is
possible an air filter change may not
be indicated for up to four years.
When the "Replace at Next Oil
Change" message displays, the
engine air filter should be replaced
at the time of the next engine oil
change. When the "Replace Engine
Air Filter Now" message displays,
the engine air filter should be
replaced as soon as possible. Reset
the engine air filter life system after
the engine air filter is replaced. See
your dealer for service and to reset
the system.
How to Reset Engine Air Filter
Life System
Reset the system whenever the
engine air filter is replaced so that
the system can calculate the next
engine air filter change.
To reset:1. Place the vehicle in P (Park).
2. Select Air Filter Life under the Maintenance DIC menu. See
Driver Information Center (DIC)
0108.
3. Press the thumbwheel under the Air Filter Life page to move
to the Reset/Disable area.
Select Reset Air Filter Life with
the thumbwheel scroll and then
press the thumbwheel. Then
press Yes to confirm the reset.
4. When the Engine Air Filter Life System is successfully reset,
100% Air Filter Life will be
displayed.
Engine Air Cleaner/Filter
See Engine Compartment Overview
0 215 for the location of the engine
air cleaner/filter.
Caution
If water is sprayed and enters the
engine air cleaner/filter intake and
housing, the engine could be
damaged. The repairs would not
be covered by the vehicle
warranty.
When to Inspect the Engine Air
Cleaner/Filter
For intervals on changing and
inspecting the engine air cleaner/
filter, see Maintenance Schedule
0 286.
How to Inspect/Replace the
Engine Air Cleaner/Filter
Do not start the engine or have the
engine running with the engine air
cleaner/filter housing open. Before
removing the engine air cleaner/
filter, make sure that the engine air

Chevrolet Corvette Owner Manual (GMNA-Localizing-U.S./Canada/Mexico-
12470550) - 2020 - CRC - 4/23/20
228 Vehicle Care
.Will not damage aluminum parts.
. Helps keep the proper engine
temperature.
Caution
Do not use anything other than a
mix of DEX-COOL coolant that
meets GM Standard
GMW3420 and clean, drinkable
water. Anything else can cause
damage to the engine cooling
system and the vehicle, which
would not be covered by the
vehicle warranty.
Never dispose of engine coolant by
putting it in the trash, pouring it on
the ground, or into sewers, streams,
or bodies of water. Have the coolant
changed by an authorized service
center, familiar with legal
requirements regarding used
coolant disposal. This will help
protect the environment and your
health. If ambient temperatures are
anticipated below
−28 °C (−18 °F),
make sure a proper mixture ratio of
50% DEX-COOL coolant and 50%
clean, drinkable water is used.Checking Coolant
Be sure the cooling system is cool
and that the vehicle is on a level
surface.
Check to see if coolant is visible in
the coolant surge tank. If the coolant
inside the coolant surge tank is
boiling, do not do anything else until
it cools down. If coolant is visible
but the coolant level is not at or
above the cold fill line, add a
mixture of 40% DEX-COOL coolant
and 60% clean, drinkable water at
the coolant recovery tank, but be
sure the cooling system is cool
before this is done. See Engine
Overheating 0230.
The surge tank is in the engine
compartment. See Engine
Compartment Overview 0215.
When the engine is cold, the coolant
level should be at the COLD FILL
indicator in the coolant surge tank.
When the engine is hot, the level
could be higher than the COLD FILL
indicator. If the coolant is below the
COLD FILL indicator when the
engine is hot, there could be a leak
in the cooling system.
If the coolant is low, add the coolant
or take the vehicle to your dealer for
service.

Chevrolet Corvette Owner Manual (GMNA-Localizing-U.S./Canada/Mexico-
12470550) - 2020 - CRC - 4/23/20
230 Vehicle Care
6. Replace the pressure captightly.
7. Verify coolant level after the engine is shut off and the
coolant is cold. If necessary,
repeat coolant fill procedure
Steps 3−7.
If the coolant still is not at the
proper level when the system
cools down again, see your
dealer.
Caution
If the pressure cap is not tightly
installed, coolant loss and engine
damage may occur. Be sure the
cap is properly and tightly
secured.
Engine Overheating
The vehicle has several indicators
to warn of engine overheating.
There is an engine coolant
temperature gauge on the
instrument cluster. See Engine
Coolant Temperature Gauge 099. The vehicle may also display a
message on the Driver Information
Center (DIC).
If the decision is made not to lift the
hatch but to get service help right
away, see
Roadside Assistance
Program 0306.
If the decision is made to lift the
hatch, make sure the vehicle is
parked on a level surface.
Then check to see if the engine
cooling fans are running. There are
two cooling fans located in the front
(one at each corner) and two
cooling fans in the rear (one on
each side of the engine). If the
engine is overheating, the fans
should be running. If they are not,
do not continue to run the engine,
and have the vehicle serviced.Caution
Do not run the engine if there is a
leak in the engine cooling system.
This can cause a loss of all (Continued)
Caution (Continued)
coolant and can damage the
system and vehicle. Have any
leaks fixed right away.
If Steam Is Coming from the
Engine
{Warning
Steam and scalding liquids from a
hot cooling system are under
pressure. Turning the pressure
cap, even a little, can cause them
to come out at high speed and
you could be burned. Never turn
the cap when the cooling system,
including the pressure cap, is hot.
Wait for the cooling system and
pressure cap to cool.