service CHEVROLET CORVETTE 2018 Service Manual

Chevrolet Corvette Owner Manual (GMNA-Localizing-U.S./Canada/Mexico-
11374030) - 2018 - CRC - 11/8/17
210 Driving and Operating
When the System Does Not
Seem to Work Properly
The RVC system may not work
properly or display a clear image if:
.It is dark.
. The sun or the beam of
headlamps is shining directly
into the camera lens.
. Ice, snow, mud, or anything else
builds up on the camera lens.
Clean the lens, rinse it with
water, and wipe it with a soft
cloth.
. The back of the vehicle is in an
accident. The position and
mounting angle of the camera
can change or the camera can
be affected. Be sure to have the
camera and its position and
mounting angle checked at your
dealer.
Fuel
GM recommends the use of TOP
TIER Detergent Gasoline to keep
the engine cleaner and reduce
engine deposits. See
www.toptiergas.com for a list of TOP
TIER Detergent Gasoline marketers
and applicable countries.
Do not use any fuel labeled E85 or
FlexFuel. Do not use gasoline with
ethanol levels greater than 15% by
volume.
For the LT1 6.2L engine, premium
unleaded gasoline meeting ASTM
specification D4814 with a posted octane rating of 93 is highly
recommended for best performance
and fuel economy. Unleaded
gasoline with an octane rated as low
as 87 can be used. Using unleaded
gasoline rated below 93 octane,
however, will lead to reduced
acceleration and fuel economy.
If knocking occurs, use a gasoline
rated at 93 octane as soon as
possible, otherwise, the engine
could be damaged. If heavy
knocking is heard when using
gasoline with a 93 octane rating, the
engine needs service.
For the LT4 6.2L supercharged
engine, use premium unleaded
gasoline meeting ASTM
specification D4814 with a posted
octane rating of 93. If unavailable,
unleaded gasoline with a posted
octane rating of 91 may be used,
but with reduced performance and
fuel economy. If the octane is less
than 91, the engine could be
damaged and the repairs would not
be covered by the vehicle warranty.
If heavy knocking is heard when
using gasoline rated at 93 octane,
the engine needs service.

Chevrolet Corvette Owner Manual (GMNA-Localizing-U.S./Canada/Mexico-
11374030) - 2018 - CRC - 11/8/17
214 Driving and Operating
Trailer Towing
General Towing
Information
The vehicle is neither designed nor
intended to tow a trailer.
Conversions and
Add-Ons
Add-On Electrical
Equipment
{Warning
The Data Link Connector (DLC) is
used for vehicle service and
Emission Inspection/Maintenance
testing. SeeMalfunction Indicator
Lamp 0111. A device connected
to the DLC —such as an
aftermarket fleet or
driver-behavior tracking device —
may interfere with vehicle
systems. This could affect vehicle
operation and cause a crash.
Such devices may also access
information stored in the vehicle’s
systems.
Caution
Some electrical equipment can
damage the vehicle or cause
components to not work and
would not be covered by the
vehicle warranty. Always check
with your dealer before adding
electrical equipment.
Add-on equipment can drain the
vehicle's 12-volt battery, even if the
vehicle is not operating.
The vehicle has an airbag system.
Before attempting to add anything
electrical to the vehicle, see
Servicing the Airbag-Equipped
Vehicle 081 and Adding Equipment
to the Airbag-Equipped Vehicle
0 81.

Chevrolet Corvette Owner Manual (GMNA-Localizing-U.S./Canada/Mexico-
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Vehicle Care 215
Vehicle Care
General Information
General Information . . . . . . . . . . 216
California Proposition65 Warning . . . . . . . . . . . . . . . . . 216
California Perchlorate Materials Requirements . . . . . 217
Accessories and Modifications . . . . . . . . . . . . . . . . 217
Lifting the Vehicle . . . . . . . . . . . . 217
Vehicle Checks
Doing Your Own Service Work . . . . . . . . . . . . . . . 220
Hood . . . . . . . . . . . . . . . . . . . . . . . . . 220
Engine Compartment Overview . . . . . . . . . . . . . . . . . . . . 221
Engine Oil . . . . . . . . . . . . . . . . . . . . 226
Engine Oil Life System . . . . . . . 231
Automatic Transmission Fluid . . . . . . . . . . . . . . . . . . . . . . . . 232
Manual Transmission Fluid . . . 233
Hydraulic Clutch . . . . . . . . . . . . . . 233
Engine Air Cleaner/Filter . . . . . . 233
Cooling System (Engine) . . . . . 236
Cooling System (Aero Panel) . . . . . . . . . . . . . . . . . . . . . . . 239
Engine Overheating . . . . . . . . . . 240 Washer Fluid . . . . . . . . . . . . . . . . . 241
Brakes . . . . . . . . . . . . . . . . . . . . . . . 242
Brake Fluid . . . . . . . . . . . . . . . . . . . 243
Battery - North America . . . . . . 244
Rear Axle . . . . . . . . . . . . . . . . . . . . 245
Starter Switch Check . . . . . . . . . 246
Automatic Transmission Shift
Lock Control Function
Check . . . . . . . . . . . . . . . . . . . . . . . 247
Park Brake and P (Park) Mechanism Check . . . . . . . . . . 247
Wiper Blade Replacement . . . . 247
Windshield Replacement . . . . . 248
Gas Strut(s) . . . . . . . . . . . . . . . . . . 248Headlamp Aiming
Headlamp Aiming . . . . . . . . . . . . 249
Bulb Replacement
Bulb Replacement . . . . . . . . . . . . 250
High Intensity Discharge (HID) Lighting . . . . . . . . . . . . . . . . . . . . . 250
LED Lighting . . . . . . . . . . . . . . . . . 250
License Plate Lamp . . . . . . . . . . 250
Electrical System
Electrical System Overload . . . 251
Fuses . . . . . . . . . . . . . . . . . . . . . . . . 251
Engine Compartment Fuse Block . . . . . . . . . . . . . . . . . . . . . . . . 252 Rear Compartment Fuse
Block . . . . . . . . . . . . . . . . . . . . . . . . 254
Wheels and Tires
Tires . . . . . . . . . . . . . . . . . . . . . . . . . . 257
Winter Tires . . . . . . . . . . . . . . . . . . 258
Run-Flat Tires . . . . . . . . . . . . . . . . 258
Low-Profile Tires . . . . . . . . . . . . . 259
Competition Oriented Tires . . . 260
Summer Tires . . . . . . . . . . . . . . . . 261
Tire Sidewall Labeling . . . . . . . . 261
Tire Designations . . . . . . . . . . . . . 262
Tire Terminology andDefinitions . . . . . . . . . . . . . . . . . . 263
Tire Pressure . . . . . . . . . . . . . . . . . 266
Tire Pressure for High-Speed Operation . . . . . . . . . . . . . . . . . . . 267
Tire Pressure Monitor System . . . . . . . . . . . . . . . . . . . . . . 267
Tire Pressure Monitor Operation . . . . . . . . . . . . . . . . . . . 268
Tire Inspection . . . . . . . . . . . . . . . . 270
Tire Rotation . . . . . . . . . . . . . . . . . 271
When It Is Time for New Tires . . . . . . . . . . . . . . . . . . . . . . . . 272
Buying New Tires . . . . . . . . . . . . . 272
Different Size Tires and Wheels . . . . . . . . . . . . . . . . . . . . . . 274
Uniform Tire Quality Grading . . . . . . . . . . . . . . . . . . . . . 274

Chevrolet Corvette Owner Manual (GMNA-Localizing-U.S./Canada/Mexico-
11374030) - 2018 - CRC - 11/8/17
216 Vehicle Care
Wheel Alignment and TireBalance . . . . . . . . . . . . . . . . . . . . . 276
Wheel Replacement . . . . . . . . . . 276
Tire Chains . . . . . . . . . . . . . . . . . . . 278
If a Tire Goes Flat . . . . . . . . . . . . 278
Tire Sealant and Compressor Kit . . . . . . . . . . . . . 279
Storing the Tire Sealant and Compressor Kit . . . . . . . . . . . . . 286
Jump Starting
Jump Starting - NorthAmerica . . . . . . . . . . . . . . . . . . . . . 287
Towing the Vehicle
Towing the Vehicle . . . . . . . . . . . 290
Recreational VehicleTowing . . . . . . . . . . . . . . . . . . . . . . 292
Appearance Care
Exterior Care . . . . . . . . . . . . . . . . . 292
Interior Care . . . . . . . . . . . . . . . . . . 297
Floor Mats . . . . . . . . . . . . . . . . . . . . 300
General Information
For service and parts needs, visit
your dealer. You will receive
genuine GM parts and GM-trained
and supported service people.
Genuine GM parts have one of
these marks:
California Proposition
65 Warning
{Warning
Most motor vehicles, including
this one, as well as many of its
service parts and fluids, contain
and/or emit chemicals known to
the State of California to cause
cancer and birth defects or other
reproductive harm. Engine
exhaust, many parts and
systems, many fluids, and some
component wear by-products
contain and/or emit these
chemicals. For more information
go to www.P65Warnings.ca.gov/
passenger-vehicle.
See Battery - North America 0244
and Jump Starting - North America
0 287 and the back cover.

Chevrolet Corvette Owner Manual (GMNA-Localizing-U.S./Canada/Mexico-
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218 Vehicle Care
{Warning
Getting under a vehicle when it is
lifted on a jack is dangerous.
If the vehicle slips off the jack,
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 Chevrolet
Corvette 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 –Cradle
The front lifting points can be
accessed from either side of the
vehicle, behind the front tires.
1. Locate the front lifting points.
2. Place a block or pad between the jack and the vehicle.

Chevrolet Corvette Owner Manual (GMNA-Localizing-U.S./Canada/Mexico-
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Vehicle Care 219
3. Lift the vehicle with the jack.
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. Lifting from the Rear
–Cradle
The rear lifting points can be
accessed from the rear driver or
passenger side of the vehicle.
1. Locate the rear lifting points.
2. Place a block or pad between the jack and the vehicle.
3. Lift the vehicle with the jack. 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 0220.

Chevrolet Corvette Owner Manual (GMNA-Localizing-U.S./Canada/Mexico-
11374030) - 2018 - CRC - 11/8/17
220 Vehicle Care
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 Service
Publications Ordering Information
0 330.
This vehicle has an airbag system.
Before attempting to do your own
service work, see Servicing the
Airbag-Equipped Vehicle 081. Keep a record with all parts receipts
and list the mileage and the date of
any service work performed. See
Maintenance Records
0316.
Caution
Even small amounts of
contamination can cause damage
to vehicle systems. Do not allow
contaminants to contact the fluids,
reservoir caps, or dipsticks.
Hood
To open the hood:
1. Pull the hood release lever
inside the vehicle. It is below
the instrument panel on the
driver side.
2. Go to the side of the vehicle
and pull up on the rear edge of
the hood, near the windshield.
Before closing the hood, be sure all
the filler caps are on properly. Then,
pull the hood down and close it
firmly.

Chevrolet Corvette Owner Manual (GMNA-Localizing-U.S./Canada/Mexico-
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Vehicle Care 227
or too soon after engine shutoff
can result in incorrect readings.
Accuracy improves when
checking a cold engine prior to
starting. Remove the dipstick
and check the level.
. If unable to wait two hours, the
engine must be off for at least
15 minutes if the engine is
warm, or at least 30 minutes if
the engine is not warm. Pull out
the dipstick, wipe it with a clean
paper towel or cloth, then push it
back in all the way. Remove it
again, keeping the tip down, and
check the level.
When to Add Engine Oil
(Except Z06, Grand Sport, and
Stingray with Z51)
If the oil is below the cross-hatched
area at the tip of the dipstick and
the engine has been off for at least
15 minutes, add 1 L (1 qt) of the
recommended oil and then recheck
the level. See “Selecting the Right
Engine Oil” later in this section for
an explanation of what kind of oil to
use. For engine oil crankcase
capacity, see Capacities and
Specifications 0318.
See Track Events and Competitive
Driving 0159 for additional
information on engine oil.
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 you find that you
have an oil level 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
(Continued)
Caution (Continued)
operating range, the engine could
be damaged. You should drain
out the excess oil or limit driving
of the vehicle and seek a service
professional to remove the
excess amount of oil.
See Engine Compartment Overview
0 221 for the location of the engine
oil fill cap.
Add enough oil to put the level
somewhere in the proper operating
range. Push the dipstick all the way
back in when through.

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Vehicle Care 229
4. Remove the dipstick from theexternal engine oil tank and
wipe it with a clean lint-free
paper towel or a cloth.
Re-insert the dipstick into the
external oil tank, pushing it all
the way in until it stops.
5. Remove the dipstick from the oil tank and read the level on
the cross-hatched area.
When to Add Engine Oil (Z06,
Grand Sport, and Stingray
with Z51)
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 and then recheck the level. See
“Selecting the Right Engine Oil”
for an explanation of what kind of oil
to use. For engine oil crankcase
capacity, see Capacities and
Specifications 0318.
See Track Events and Competitive
Driving 0159 for additional
information on engine oil.
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 you find that you
have an oil level 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. You should drain
out the excess oil or limit driving
of the vehicle and seek a service
professional to remove the
excess amount of oil. See
Engine Compartment Overview
0 221 for the location of the external
engine oil tank 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 when through.
Changing Engine Oil and Filter
(Z06, Grand Sport, and
Stingray with Z51)
The vehicle may have 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. Follow this
procedure closely when changing
the engine oil and filter.

Chevrolet Corvette Owner Manual (GMNA-Localizing-U.S./Canada/Mexico-
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232 Vehicle Care
operates differently than a standard
engine lubrication system and
requires a special procedure when
changing the engine oil and filter.
SeeEngine Oil 0226.
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.
Dry Sump Engine Break-In Oil
Change
If equipped with a dry sump engine,
the initial oil and filter change must
be performed at 800 km/500 mi.
Follow the engine oil life system for
every oil change thereafter.
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)
0118.
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.
Automatic Transmission
Fluid
How to Check Automatic
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