2018 CHEVROLET CORVETTE traction control

Chevrolet Corvette Owner Manual (GMNA-Localizing-U.S./Canada/Mexico-
11374030) - 2018 - CRC - 11/8/17
Vehicle Care 217
California Perchlorate
Materials Requirements
Certain types of automotive
applications, such as airbag
initiators, seat belt pretensioners,
and lithium batteries contained in
Remote Keyless Entry transmitters,
may contain perchlorate materials.
Special handling may be necessary.
For additional information, see
www.dtsc.ca.gov/hazardouswaste/
perchlorate.
Accessories and
Modifications
Adding non-dealer accessories or
making modifications to the vehicle
can affect vehicle performance and
safety, including such things as
airbags, braking, stability, ride and
handling, emissions systems,
aerodynamics, durability, and
electronic systems like antilock
brakes, traction control, and stability
control. These accessories or
modifications could even cause
malfunction or damage not covered
by the vehicle warranty.Damage to suspension components
caused by modifying vehicle height
outside of factory settings will not be
covered by the vehicle warranty.
Damage to vehicle components
resulting from modifications or the
installation or use of non-GM
certified parts, including control
module or software modifications, is
not covered under the terms of the
vehicle warranty and may affect
remaining warranty coverage for
affected parts.
GM Accessories are designed to
complement and function with other
systems on the vehicle. See your
dealer to accessorize the vehicle
using genuine GM Accessories
installed by a dealer technician.
Also, see
Adding Equipment to the
Airbag-Equipped Vehicle 081.
Lifting the Vehicle
{Warning
Lifting a vehicle can cause an
injury. The vehicle can slip off the
jack and roll over you or other
people. You and they could be
badly injured. Find a level place
to lift your vehicle. To help
prevent the vehicle from moving:
1. Set the parking brake firmly.
2. Put an automatictransmission in P (Park) or a
manual transmission in
1 (First) or R (Reverse).
3. Turn off the engine.
To be even more certain the
vehicle will not move, put blocks
in front of and behind the wheels.

Chevrolet Corvette Owner Manual (GMNA-Localizing-U.S./Canada/Mexico-
11374030) - 2018 - CRC - 11/8/17
258 Vehicle Care
Warning (Continued)
.Replace any tires that
have been damaged by
impacts with potholes,
curbs, etc.
.Improperly repaired tires
can cause a crash. Only
the dealer or an
authorized tire service
center should repair,
replace, dismount, and
mount the tires.
.Do not spin the tires in
excess of 56 km/h
(35 mph) on slippery
surfaces such as snow,
mud, ice, etc. Excessive
spinning may cause the
tires to explode.
See Tire Pressure for
High-Speed Operation 0267 for
inflation pressure adjustment for
high-speed driving.
Winter Tires
This vehicle was not originally
equipped with winter tires. Winter
tires are designed for increased
traction on snow and ice-covered
roads. Consider installing winter
tires on the vehicle if frequent
driving on ice or snow covered
roads is expected. See your dealer
for details regarding winter tire
availability and proper tire selection.
Also, see Buying New Tires 0272.
With winter tires, there may be
decreased dry road traction,
increased road noise, and shorter
tread life. After changing to winter
tires, be alert for changes in vehicle
handling and braking.
If using winter tires:
. Use tires of the same brand and
tread type on all four wheel
positions.
. Use only radial ply tires of the
same size, load range, and
speed rating as the original
equipment tires. Winter tires with the same speed
rating as the original equipment tires
may not be available for H, V, W, Y,
and ZR speed rated tires. If winter
tires with a lower speed rating are
chosen, never exceed the tire's
maximum speed capability.
Run-Flat Tires
This vehicle, when new, had run-flat
tires. There is no spare tire, no tire
changing equipment, and no place
to store a tire in the vehicle.
The vehicle also has a Tire
Pressure Monitor System (TPMS)
that indicates a loss of tire pressure
in any of the tires.
{Warning
If the low tire warning light
displays on the instrument cluster,
the handling capabilities will be
reduced during severe
maneuvers. Driving too fast could
cause loss of control and you or
others could be injured. Do not
(Continued)

Chevrolet Corvette Owner Manual (GMNA-Localizing-U.S./Canada/Mexico-
11374030) - 2018 - CRC - 11/8/17
Vehicle Care 273
GM strongly recommends
buying tires with the same TPC
Spec rating.
GM's exclusive TPC Spec
system considers over a dozen
critical specifications that impact
the overall performance of the
vehicle, including brake system
performance, ride and handling,
traction control, and tire
pressure monitoring
performance. GM's TPC Spec
number is molded onto the tire's
sidewall near the tire size. If the
tires have an all-season tread
design, the TPC Spec number
will be followed by MS for mud
and snow. SeeTire Sidewall
Labeling 0261, for additional
information.
GM recommends replacing worn
tires in complete sets of four.
Uniform tread depth on all tires
will help to maintain the
performance of the vehicle.
Braking and handling performance may be adversely
affected if all the tires are not
replaced at the same time.
If proper rotation and
maintenance have been done,
all four tires should wear out at
about the same time. See
Tire
Rotation 0271 for information
on proper tire rotation. However,
if it is necessary to replace only
one axle set of worn tires, place
the new tires on the rear axle.
Winter tires with the same speed
rating as the original equipment
tires may not be available for H,
V, W, and ZR speed rated tires.
Never exceed the winter tire's
maximum speed capability when
using winter tires with a lower
speed rating.
{Warning
Tires could explode during
improper service. Attempting
to mount or dismount a tire
(Continued)
Warning (Continued)
could cause injury or death.
Only your dealer or authorized
tire service center should
mount or dismount the tires.
{Warning
Mixing tires of different sizes
(other than those originally
installed on the vehicle), brands,
or types may cause loss of
control of the vehicle, resulting in
a crash or other vehicle damage.
Use the correct size, brand, and
type of tire on all four wheels.
{Warning
Using bias-ply tires on the
vehicle may cause the wheel
rim flanges to develop cracks
(Continued)

Chevrolet Corvette Owner Manual (GMNA-Localizing-U.S./Canada/Mexico-
11374030) - 2018 - CRC - 11/8/17
274 Vehicle Care
Warning (Continued)
after many miles of driving.
A tire and/or wheel could fail
suddenly and cause a crash.
Use only radial-ply tires with
the wheels on the vehicle.
If the vehicle tires must be
replaced with a tire that does not
have a TPC Spec number, make
sure they are the same size,
load range, speed rating, and
construction (radial) as the
original tires.
Vehicles that have a tire
pressure monitoring system
could give an inaccurate
low-pressure warning if non-TPC
Spec rated tires are installed.
See Tire Pressure Monitor
Operation 0268. The Tire and Loading
Information label indicates the
original equipment tires on the
vehicle. See
Vehicle Load Limits
0 173.
Different Size Tires and
Wheels
If wheels or tires are installed that
are a different size than the original
equipment wheels and tires, vehicle
performance, including its braking,
ride and handling characteristics,
stability, and resistance to rollover
may be affected. If the vehicle has
electronic systems such as antilock
brakes, rollover airbags, traction
control, electronic stability control,
or All-Wheel Drive, the performance
of these systems can also be
affected.
{Warning
If different sized wheels are used,
there may not be an acceptable
level of performance and safety if
(Continued)
Warning (Continued)
tires not recommended for those
wheels are selected. This
increases the chance of a crash
and serious injury. Only use GM
specific wheel and tire systems
developed for the vehicle, and
have them properly installed by a
GM certified technician.
See Buying New Tires 0272 and
Accessories and Modifications
0 217.
Uniform Tire Quality
Grading
The following information relates
to the system developed by the
United States National Highway
Traffic Safety Administration
(NHTSA), which grades tires by
treadwear, traction, and
temperature performance. This
applies only to vehicles sold in
the United States. The grades
are molded on the sidewalls of

Chevrolet Corvette Owner Manual (GMNA-Localizing-U.S./Canada/Mexico-
11374030) - 2018 - CRC - 11/8/17
Vehicle Care 275
most passenger car tires. The
Uniform Tire Quality Grading
(UTQG) system does not apply
to deep tread, winter tires,
compact spare tires, tires with
nominal rim diameters of
10 to 12 inches (25 to 30 cm),
or to some limited-production
tires.
While the tires available on
General Motors passenger cars
and light trucks may vary with
respect to these grades, they
must also conform to federal
safety requirements and
additional General Motors Tire
Performance Criteria (TPC)
standards.
Quality grades can be found
where applicable on the tire
sidewall between tread shoulder
and maximum section width. For
example:Treadwear 200 Traction AA
Temperature A
All Passenger Car Tires Must
Conform to Federal Safety
Requirements In Addition To
These Grades.
Treadwear
The treadwear grade is a
comparative rating based on the
wear rate of the tire when tested
under controlled conditions on a
specified government test
course. For example, a tire
graded 150 would wear one and
one-half (1½) times as well on
the government course as a tire
graded 100. The relative
performance of tires depends
upon the actual conditions of
their use, however, and may
depart significantly from the
norm due to variations in driving
habits, service practices and
differences in road
characteristics and climate.Traction
The traction grades, from
highest to lowest, are AA, A, B,
and C. Those grades represent
the tire's ability to stop on wet
pavement as measured under
controlled conditions on
specified government test
surfaces of asphalt and
concrete. A tire marked C may
have poor traction performance.
Warning: The traction grade
assigned to this tire is based on
straight-ahead braking traction
tests, and does not include
acceleration, cornering,
hydroplaning, or peak traction
characteristics.
Temperature
The temperature grades are A
(the highest), B, and C,
representing the tire's resistance
to the generation of heat and its
ability to dissipate heat when
tested under controlled
conditions on a specified indoor

Chevrolet Corvette Owner Manual (GMNA-Localizing-U.S./Canada/Mexico-
11374030) - 2018 - CRC - 11/8/17
278 Vehicle Care
Tighten the wheel lug nuts firmly in
a crisscross sequence. See
Capacities and Specifications0318.
Tire Chains
{Warning
Do not use tire chains. There is
not enough clearance. Tire chains
used on a vehicle without the
proper amount of clearance can
cause damage to the brakes,
suspension, or other vehicle
parts. The area damaged by the
(Continued)
Warning (Continued)
tire chains could cause loss of
control and a crash. Use another
type of traction device only if its
manufacturer recommends it for
the vehicle's tire size combination
and road conditions. Follow that
manufacturer's instructions. To
avoid vehicle damage, drive
slowly and readjust or remove the
traction device if it contacts the
vehicle. Do not spin the wheels.
If traction devices are used, install
them on the rear tires.
If a Tire Goes Flat
It is unusual for a tire to blow out
while driving, especially if the tires
are maintained properly. If air goes
out of a tire, it is much more likely to
leak out slowly. SeeTires0257 for
additional information. But if there
ever is a blowout, here are a few
tips about what to expect and what
to do: If a front tire fails, the flat tire
creates a drag that pulls the vehicle
toward that side. Take your foot off
the accelerator pedal and grip the
steering wheel firmly. Steer to
maintain lane position, and then
gently brake to a stop, well off the
road, if possible.
A rear blowout, particularly on a
curve, acts much like a skid and
may require the same correction as
used in a skid. Stop pressing the
accelerator pedal and steer to
straighten the vehicle. It may be
very bumpy and noisy. Gently brake
to a stop, well off the road,
if possible.
The vehicle has no spare tire, no
tire changing equipment, and no
place to store a tire.
If the vehicle has run-flat tires, there
is no need to stop on the side of the
road to change a flat tire. See
Run-Flat Tires
0258.

Chevrolet Corvette Owner Manual (GMNA-Localizing-U.S./Canada/Mexico-
11374030) - 2018 - CRC - 11/8/17
Index 349
Compressor Kit, Tire Sealant . . . 279
ConnectionsOnStar . . . . . . . . . . . . . . . . . . . . . . . 338
Control Traction and ElectronicStability . . . . . . . . . . . . . . . . . . . . . 196
Control of a Vehicle . . . . . . . . . . . . . 157
Convenience Net . . . . . . . . . . . . . . . . 95
Convertible Top . . . . . . . . . . . . . . . . . . 52
Convex Mirrors . . . . . . . . . . . . . . . . . . 44
Coolant
Engine Temperature Gauge . . 108
Engine TemperatureWarning Light . . . . . . . . . . . . . . . .115
Cooling . . . . . . . . . . . . . . . . . . . . . . . . . 149
Cooling System . . . . . . . . . . . . 236, 239
Courtesy Lamps . . . . . . . . . . . . . . . . 141
Courtesy Transportation Program . . . . . . . . . . . . . . . . . . . . . . . 327
Cover Cargo . . . . . . . . . . . . . . . . . . . . . . . . . . . 94
Cruise Control . . . . . . . . . . . . . . . . . . 205 Light . . . . . . . . . . . . . . . . . . . . . . . . . . .118
Cupholders . . . . . . . . . . . . . . . . . . . . . . 93
Customer Assistance . . . . . . . . . . . 324 Offices . . . . . . . . . . . . . . . . . . . . . . . . 323
Text Telephone (TTY)Users . . . . . . . . . . . . . . . . . . . . . . . 324 Customer Information
Service Publications
Ordering Information . . . . . . . . 330
Customer Satisfaction Procedure . . . . . . . . . . . . . . . . . . . . . 321
D
Damage Repair, Collision . . . . . . . 328
Danger, Warning, and Caution . . . . 2
Data CollectionInfotainment System . . . . . . . . . . 334
OnStar . . . . . . . . . . . . . . . . . . . . . . . 334
Data Recorder Performance . . . . . . . . . . . . . . . . . . 143
Data Recorders, Event . . . . . . . . . 333
Daytime Running Lamps (DRL) . . . . . . . . . . . . . . . . . . 138
Defensive Driving . . . . . . . . . . . . . . . 157
Delayed Locking . . . . . . . . . . . . . . . . . 38
Diagnostics OnStar . . . . . . . . . . . . . . . . . . . . . . . 340
Differential, Limited-Slip . . . . . . . . 205
Distracted Driving . . . . . . . . . . . . . . . 156
Door Ajar Light . . . . . . . . . . . . . . . . . . . . . .118
Delayed Locking . . . . . . . . . . . . . . . . 38
Locks . . . . . . . . . . . . . . . . . . . . . . . . . . . 35
Power Locks . . . . . . . . . . . . . . . . . . . . 37 Drive Belt Routing, Engine . . . . . . 320
Driver Information
Center (DIC) . . . . . . . . . . . . . . . . . . 118
Driver Mode Control . . . . . . . . . . . . 198
Driving Competitive . . . . . . . . . . . . . . . . . . . 201
Defensive . . . . . . . . . . . . . . . . . . . . . 157
Drunk . . . . . . . . . . . . . . . . . . . . . . . . . 157
For Better Fuel Economy . . . . . . . 25
Hill and Mountain Roads . . . . . . 171
If the Vehicle is Stuck . . . . . . . . . 173
Loss of Control . . . . . . . . . . . . . . . 159
Off-Road Recovery . . . . . . . . . . . 158
Track Events andCompetitive . . . . . . . . . . . . . . . . . 159
Vehicle Load Limits . . . . . . . . . . . 173
Wet Roads . . . . . . . . . . . . . . . . . . . 170
Winter . . . . . . . . . . . . . . . . . . . . . . . . 172
Dual Automatic Climate Control System . . . . . . . . . . . . . . . . 149
E
Electric Parking Brake . . . . . . . . . . 193
Electric Parking Brake Light . . . . 113
Electrical Equipment,Add-On . . . . . . . . . . . . . . . . . . . . . . . 214

Chevrolet Corvette Owner Manual (GMNA-Localizing-U.S./Canada/Mexico-
11374030) - 2018 - CRC - 11/8/17
352 Index
Lamps (cont'd)Reading . . . . . . . . . . . . . . . . . . . . . . 141
Lap-Shoulder Belt . . . . . . . . . . . . . . . 68
LATCH, Lower Anchors and Tethers for Children . . . . . . . . . . . . 88
Latches, Seatback . . . . . . . . . . . . . . . 63
LED Lighting . . . . . . . . . . . . . . . . . . . . 250
Lifting the Vehicle, Tires . . . . . . . . 217
Lighting Entry . . . . . . . . . . . . . . . . . . . . . . . . . 141
Exit . . . . . . . . . . . . . . . . . . . . . . . . . . . 141
Illumination Control . . . . . . . . . . . 141
LED . . . . . . . . . . . . . . . . . . . . . . . . . . 250
Lights
Airbag Readiness . . . . . . . . . . . . . 109
Antilock Brake System(ABS) Warning . . . . . . . . . . . . . . .114
Brake System Warning . . . . . . . .113
Charging System . . . . . . . . . . . . . . 111
Check Engine (Malfunction
Indicator) . . . . . . . . . . . . . . . . . . . . . 111
Cruise Control . . . . . . . . . . . . . . . . .118
Door Ajar . . . . . . . . . . . . . . . . . . . . . .118
Electric Parking Brake . . . . . . . . .113
Electronic Stability Control (ESC), Off . . . . . . . . . . . . . . . . . . . .115
Engine Coolant Temperature Warning . . . . . . . .115 Lights (cont'd)
Engine Oil Pressure . . . . . . . . . . .116
Flash-to-Pass . . . . . . . . . . . . . . . . . 138
High-Beam On . . . . . . . . . . . . . . . . .117
High/Low Beam Changer . . . . . 138
Low Fuel Warning . . . . . . . . . . . . .117
Seat Belt Reminders . . . . . . . . . . 109
Security . . . . . . . . . . . . . . . . . . . . . . .117
Service Electric Parking
Brake . . . . . . . . . . . . . . . . . . . . . . . .114
Tire Pressure . . . . . . . . . . . . . . . . . .116
Traction Off . . . . . . . . . . . . . . . . . . . .114
Limited-Slip Differential . . . . . . . . . 205
Locks Automatic Door . . . . . . . . . . . . . . . . . 38
Delayed Locking . . . . . . . . . . . . . . . . 38
Door . . . . . . . . . . . . . . . . . . . . . . . . . . . . 35
Lockout Protection . . . . . . . . . . . . . . 38
Power Door . . . . . . . . . . . . . . . . . . . . . 37
Loss of Control . . . . . . . . . . . . . . . . . 159
Low Fuel Warning Light . . . . . . . . . 117
Low-Profile Tires . . . . . . . . . . . . . . . . 259
Lower Anchors and Tethers for Children (LATCH
System) . . . . . . . . . . . . . . . . . . . . . . . . 88
Lumbar Adjustment . . . . . . . . . . . . . . 59 Front Seats . . . . . . . . . . . . . . . . . . . . . 59M
MaintenanceRecords . . . . . . . . . . . . . . . . . . . . . . 316
Maintenance and Care Additional . . . . . . . . . . . . . . . . . . . . . 310
Maintenance Schedule . . . . . . . . . 304 Recommended Fluids andLubricants . . . . . . . . . . . . . . . . . . . 313
Malfunction Indicator Lamp . . . . . 111
Manual Mode . . . . . . . . . . . . . . . . . . . 187
Manual Transmission . . . . . . . . . . . 190 Fluid . . . . . . . . . . . . . . . . . . . . . . . . . . 233
Matching Active Rev . . . . . . . . . . . . . . . . . . . . 191
Memory Features . . . . . . . . . . . . . . . . 13
Memory Seats . . . . . . . . . . . . . . . . . . . 60
Messages Engine Power . . . . . . . . . . . . . . . . 125
Vehicle . . . . . . . . . . . . . . . . . . . . . . . 125
Vehicle Speed . . . . . . . . . . . . . . . . 126
Mirrors Automatic Dimming . . . . . . . . . . . . . 45
Automatic DimmingRearview . . . . . . . . . . . . . . . . . . . . . . 46
Convex . . . . . . . . . . . . . . . . . . . . . . . . . 44
Folding . . . . . . . . . . . . . . . . . . . . . . . . . 45
Heated . . . . . . . . . . . . . . . . . . . . . . . . . 45
Manual Rearview . . . . . . . . . . . . . . . 46