2020 CHEVROLET CORVETTE check engine

Chevrolet Corvette Owner Manual (GMNA-Localizing-U.S./Canada/Mexico-
12470550) - 2020 - CRC - 4/23/20
Vehicle Care 233
Brake Pedal Travel
See your dealer if the brake pedal
does not return to normal height,
or if there is a rapid increase in
pedal travel. This could be a sign
that brake service may be required.
Replacing Brake System Parts
Always replace brake system parts
with new, approved replacement
parts. If this is not done, the brakes
may not work properly. The braking
performance expected can change
in many other ways if the wrong
replacement brake parts are
installed or parts are improperly
installed.
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.
Cold Weather Brake Operation
High performance brake
components may bind and clunk
when moving the vehicle. This may
be noticeable after parking when the
brakes have been wet, such as
when driving in the rain or after a
car wash. This is normal for brakes
with high friction pads and does not
affect the operation of the brakes.
Apply the brakes several times until
the binding or clunking stops. Drive
the vehicle and apply the brakes
several times if it is washed before
long-term storage.
Brake Fluid
The brake master cylinder reservoir
is filled with GM approved DOT 4
brake fluid as indicated on thereservoir cap. See
Engine
Compartment Overview 0215 for
the location of the reservoir.
Checking Brake Fluid
With the vehicle in P (Park) on a
level surface, the brake fluid level
should be between the minimum
and maximum marks on the brake
fluid reservoir.
There are only two reasons why the
brake fluid level in the reservoir may
go down:
. Normal brake lining wear. When
new linings are installed, the
fluid level goes back up.
. A fluid leak in the brake
hydraulic system. Have the
brake hydraulic system fixed.
With a leak, the brakes will not
work well.
Always clean the brake fluid
reservoir cap and the area around
the cap before removing it.
Do not top off the brake fluid.
Adding fluid does not correct a leak.
If fluid is added when the linings are
worn, there will be too much fluid

Chevrolet Corvette Owner Manual (GMNA-Localizing-U.S./Canada/Mexico-
12470550) - 2020 - CRC - 4/23/20
Vehicle Care 235
Vehicle Storage
{Warning
Batteries have acid that can burn
you and gas that can explode.
You can be badly hurt if you are
not careful. SeeJump Starting -
North America 0267 for tips on
working around a battery without
getting hurt.
Some vehicles have a battery
maintainer package. Follow the
instructions provided with the
battery maintainer package to keep the battery charged when the
vehicle is not in use. Plug the
battery maintainer into the
underhood accessory power
outlet only.
For vehicles without a battery
maintainer, see the following
information:
Infrequent Usage: Remove the
black, negative (−) cable from the
battery to keep the battery from
running down.
See
“Window Indexing” under
Power Windows 035.
Extended Storage: It is
recommended that the battery
maintainer package be used.
However, if not, remove the black,
negative (−) cable from the battery.
All vehicle memory settings will
need to be reset when battery
power is restored.
Park Brake and P (Park)
Mechanism Check
{Warning
When you are doing this check,
the vehicle could begin to move.
You or others could be injured
and property could be damaged.
Make sure there is room in front
of the vehicle in case it begins to
roll. Be ready to apply the regular
brake at once should the vehicle
begin to move.
Park on a fairly steep hill, with the
vehicle facing downhill. Keeping
your foot on the regular brake, set
the parking brake.
. To check the parking brake's
holding ability: With the engine
running and the transmission in
N (Neutral), slowly remove foot
pressure from the regular brake
pedal. Do this until the vehicle is
held by the parking brake only.

Chevrolet Corvette Owner Manual (GMNA-Localizing-U.S./Canada/Mexico-
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236 Vehicle Care
.To check the P (Park)
mechanism's holding ability:
With the engine running, shift to
P (Park). Then release the
parking brake followed by the
regular brake.
Contact your dealer if service is
required.
Wiper Blade Replacement
Windshield wiper blades should be
inspected for wear and cracking.
Replacement blades come in
different types and are removed in
different ways. For proper type and
length, see Maintenance
Replacement Parts 0296.
To replace the windshield wiper
blade: 1. Pull the windshield wiper assembly away from the
windshield.
2. Lift up on the latch in themiddle of the wiper blade
where the wiper arm attaches.
3. With the latch open, pull the wiper blade down toward the
windshield far enough to
release it from the J-hooked
end of the wiper arm.
4. Remove the wiper blade. Allowing the wiper blade arm to
touch the windshield when no
wiper blade is installed could
damage the windshield. Any
damage that occurs would not
be covered by the vehicle warranty. Do not allow the
wiper blade arm to touch the
windshield.
5. Reverse Steps 1–3 for wiper blade replacement.
Windshield Replacement
HUD System
The windshield is part of the HUD
system. If the windshield needs to
be replaced, be sure to get one that
is designed for HUD or the HUD
image may look out of focus.
Driver Assistance Systems
If the windshield needs to be
replaced and the vehicle is
equipped with a front camera sensor
for the Driver Assistance Systems, a
GM replacement windshield is
recommended. The replacement
windshield must be installed
according to GM specifications for
proper alignment. If it is not, these
systems may not work properly, they
may display messages, or they may
not work at all. See your dealer for
proper windshield replacement.

Chevrolet Corvette Owner Manual (GMNA-Localizing-U.S./Canada/Mexico-
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270 Vehicle Care
6. Release the five clips andremove the outer cover to
access the battery.
7. Locate the battery positive (+) and negative (−) terminals.
8. Check that the jumper cables do not have loose or missing
insulation. If they do, you could
get a shock. The vehicles
could be damaged too.
9. Open the positive terminal trim cover and connect the red
positive (+) cable to the
positive (+) terminal (2) of the
dead battery.
10. Do not let the other end touch metal. Connect it to the
positive (+) terminal (4) of the
good battery.
11. Now connect the black negative (−) cable to the
negative (−) terminal (3) of the
good battery.
Do not let the other end touch
anything until the next step. 12. Connect the other end of the
negative (−) cable to the
negative (−) terminal (1) on the
dead battery.
13. Now start the vehicle with the good battery and run the
engine for a while.
14. Try to start the vehicle that had the dead battery. If it will not
start after a few tries, it
probably needs service.
Caution
If the jumper cables are
connected or removed in the
wrong order, electrical shorting
may occur and damage the
vehicle. The repairs would not be
covered by the vehicle warranty.
Always connect and remove the
jumper cables in the correct order,
making sure that the cables do
not touch each other or other
metal. Jumper Cable Removal
Reverse the sequence exactly when
removing the jumper cables.
After starting the disabled vehicle
and removing the jumper cables,
allow it to idle for several minutes.
The power windows may need to be
initialized. See
“Window Indexing”
under Power Windows 035.

Chevrolet Corvette Owner Manual (GMNA-Localizing-U.S./Canada/Mexico-
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286 Service and Maintenance
Maintenance
Schedule
Owner Checks and Services
Check the engine oil level. See
Engine Oil0218.
Once a Month
. Check the tire inflation
pressures. See Tire Pressure
0 253.
. Inspect the tires for wear. See
Tire Inspection 0259.
. Check the windshield washer
fluid level. See Washer Fluid
0 231.
Engine Oil Change
When the CHANGE ENGINE OIL
SOON message displays, change
the engine oil and filter within the
next 1 000 km (600 mi). If driven
under the best conditions, the
engine oil life system may not
indicate the need for vehicle service
for up to a year. The engine oil and
filter must be changed at least once
a year and the oil life system must be reset. Your trained dealer
technician can perform this work.
If the engine oil life system is reset
accidentally, service the vehicle
within 5 000 km (3,000 mi) since the
last service. Reset the oil life
system when the oil is changed.
See
Engine Oil Life System 0221.
Engine Air Filter Change
When the REPLACE AT NEXT OIL
CHANGE message displays,
change the engine air filter at the
next engine oil change. When the
REPLACE ENGINE AIR FILTER
SOON message displays, the
engine air filter should be replaced
at the earliest convenience. Reset
the engine air filter life system after
the engine air filter is replaced. See
Engine Air Filter Life System 0224.
Transmission Fluid Change
When the CHANGE
TRANSMISSION FLUID SOON
message displays, change the fluid
and filter within the next 1 000 km
(600 mi). Failure to change the
transmission fluid at required
intervals can lead to reduced transmission performance. The
transmission fluid must be changed
at least every three years and the
Fluid Life System must be reset.
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. See
Dual Clutch
Transmission Fluid Life System
0 223.
Air Conditioning Desiccant
(Replace Every Seven Years)
The air conditioning system requires
maintenance every seven years.
This service requires replacement of
the desiccant to help the longevity
and efficient operation of the air
conditioning system. This service
can be complex. See your dealer.
Required Services Every
12 000 km (7,500 mi)
.
Check engine oil level and oil
life percentage. If needed,
change engine oil and filter, and

Chevrolet Corvette Owner Manual (GMNA-Localizing-U.S./Canada/Mexico-
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Service and Maintenance 287
reset oil life system. SeeEngine
Oil 0218 and
Engine Oil Life System 0221.
. If equipped with the engine air
filter life system, check the air
filter life percentage.
If necessary, replace the engine
air filter and reset the engine air
filter life system. See Engine Air
Filter Life System 0224. If the
vehicle is not equipped with the
engine air filter life system,
inspect the engine air cleaner
filter. See Engine Air Cleaner/
Filter 0224.
. Check engine coolant level. See
Cooling System 0226.
. Check windshield washer fluid
level. See Washer Fluid 0231.
. Check tire inflation pressures.
See Tire Pressure 0253.
. Inspect tire wear. See Tire
Inspection 0259.
. Visually check for fluid leaks.
. Inspect brake system. See
Exterior Care 0273. .
Visually inspect steering,
suspension, and chassis
components for damage,
including cracks or tears in the
rubber boots, loose or missing
parts, or signs of wear at least
once a year. See Exterior Care
0 273.
. Inspect power steering for
proper attachment, connections,
binding, leaks, cracks,
chafing, etc.
. Visually inspect halfshafts and
driveshafts for excessive wear,
lubricant leaks, and/or damage
including: tube dents or cracks,
constant velocity joint or
universal joint looseness,
cracked or missing boots, loose
or missing boot clamps, center
bearing excessive looseness,
loose or missing fasteners, and
axle seal leaks.
. Check restraint system
components. See Safety System
Check 061.
. Visually inspect fuel system for
damage or leaks. .
Visually inspect exhaust system
and nearby heat shields for
loose or damaged parts.
. Lubricate body components. See
Exterior Care 0273.
. Check parking brake and dual
clutch transmission park
mechanism. See Park Brake and
P (Park) Mechanism Check
0 235.
. Check accelerator pedal for
damage, high effort, or binding.
Replace if needed.
. Visually inspect gas strut for
signs of wear, cracks, or other
damage. Check the hold open
ability of the strut. If the hold
open is low, service the gas
strut. See Gas Strut(s) 0237.

Chevrolet Corvette Owner Manual (GMNA-Localizing-U.S./Canada/Mexico-
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288 Service and Maintenance
Maintenance Schedule
Additional Required
Services - Normal12 000 km/7,500 mi
24 000 km/15,000 mi
36 000 km/22,500 mi
48 000 km/30,000 mi
60 000 km/37,500 mi
72 000 km/45,000 mi
84 000 km/52,500 mi
96 000 km/60,000 mi
108 000 km/67,500 mi
120 000 km/75,000 mi
132 000 km/82,500 mi
144 000 km/90,000 mi
156 000 km/97,500 mi
168 000 km/105,000 mi 180 000 km/112,500 mi
192 000 km/120,000 mi
204 000 km/127,500 mi
216 000 km/135,000 mi
228 000 km/142,500 mi
240 000 km/150,000 mi
Perform Required Services. Check engine oil
level and oil life percentage. Change engine oil
and filter, if needed. Check engine air filter life per-
centage and status. Change engine air filter,
if needed.
@ @ @ @ @ @ @ @ @ @ @ @ @ @ @ @ @ @ @ @
Replace passenger compartment air filter. (1)@ @@@@@
Inspect evaporative control system. (2)@ @@
If the vehicle is not equipped with the engine air
filter life system, replace engine air cleaner
filter. (3)@@@
Check the dual clutch transmission fluid life per-
centage. Change the fluid if needed. (4)@@@
Change the dual clutch transmission canister
filter. (5)@ @@@@@@
Replace spark plugs. Inspect spark plug wires
and/or boots.@
Drain and fill engine cooling system. (6)@
Visually inspect accessory drive belts. (7)@
Replace brake fluid. (8)
Replace front lift system fluid. (9)
Replace windshield wiper blades. (10)
@ @ @ @ @ @ @ @ @ @
Replace hatch/trunk support gas struts. (11)@ @
Replace air conditioning desiccant. (12)

Chevrolet Corvette Owner Manual (GMNA-Localizing-U.S./Canada/Mexico-
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Service and Maintenance 289
Footnotes—Maintenance
Schedule Additional Required
Services - Normal
(1) Or every two years, whichever
comes first. More frequent
passenger compartment air filter
replacement may be needed if
driving in areas with heavy traffic,
poor air quality, high dust levels,
or environmental allergens.
Passenger compartment air filter
replacement may also be needed if
there is reduced airflow, window
fogging, or odors. Your GM dealer
can help determine when to replace
the filter.
(2) Visually check all fuel and vapor
lines and hoses for proper
attachment, connection, routing, and
condition.
(3) Or every four years, whichever
comes first. If driving in dusty
conditions, inspect the filter at each
oil change or more often as needed.
See Engine Air Cleaner/Filter 0224.
(4) Or every three years, whichever
comes first. If the vehicle mileage is
near the canister filter replacement
interval, replace the fluid and filter. More frequent fluid and filter
replacement may be needed if the
vehicle is competitively or
aggressively driven. This service
can be complex. See your dealer.
(5)
Check the transmission fluid
life percentage. If the percentage is
less than 10%, replace the fluid and
filter. The initial transmission
canister filter change must be
performed at 12 000 km (7,500 mi),
and every 36 000 km (22,500 mi)
thereafter. This service can be
complex. See your dealer.
(6) Or every five years, whichever
comes first. See Cooling System
0 226.
(7) Or every 10 years, whichever
comes first. Inspect for fraying,
excessive cracking, or damage;
replace, if needed.
(8) Replace brake fluid every five
years. See Brake Fluid 0233.
(9) Replace front lift system fluid
every five years. See
Recommended Fluids and
Lubricants 0295 (10)
Or every 12 months, whichever
comes first. See Wiper Blade
Replacement 0236.
(11) Or every 10 years, whichever
comes first. See Gas Strut(s)0237.
(12) Replace air conditioning
desiccant every seven years.