ignition CHEVROLET CORVETTE 2020 Service Manual

Chevrolet Corvette Owner Manual (GMNA-Localizing-U.S./Canada/Mexico-
12470550) - 2020 - CRC - 4/23/20
180 Driving and Operating
The system has aYElectric
Parking Brake light, and a
8Service
Parking Brake light. See Electric
Parking Brake Light 0104 and
Service Electric Parking Brake Light
0 105.
Before leaving the vehicle, check for
the
Ylight to ensure that the
parking brake is applied.
EPB Apply
To apply the EPB:
1. Be sure the vehicle is at a complete stop.
2. Press the EPB switch momentarily.
The
Ylight will flash and then stay
on once the EPB is fully applied.
If the
Ylight flashes continuously,
then the EPB is only partially
applied or there is a problem with
the EPB. A DIC message will
display. Release the EPB and try to
apply it again. If the light does not
come on, or keeps flashing, have the vehicle serviced. Do not drive
the vehicle if the
Ylight is flashing.
See your dealer.
If the
8light is on, press the EPB
switch and hold it. Continue to hold
the switch until the
Ylight remains
on. If the
8light remains on, see
your dealer.
If the EPB is applied while the
vehicle is moving, the vehicle will
decelerate as long as the switch is
pressed. If the switch is pressed
until the vehicle comes to a stop,
the EPB will remain applied.
The vehicle may automatically apply
the EPB in some situations when
the vehicle is not moving. This is
normal, and is done to periodically
check the correct operation of the
EPB system.
If the EPB fails to apply, block the
rear wheels to prevent vehicle
movement.
EPB Release
To release the EPB: 1. Turn the ignition on or to ACC/
ACCESSORY.
2. Apply and hold the brake pedal.
3. Press the EPB switch momentarily.
The EPB is released when the
Y
light is off.
If the
8light is on, release the EPB
by pressing and holding the EPB
switch. Continue to hold the switch
until the
Ylight is off. If either light
stays on after release is attempted,
see your dealer.
Caution
Driving with the parking brake on
can overheat the brake system
and cause premature wear or
damage to brake system parts.
Make sure that the parking brake
is fully released and the brake
warning light is off before driving.

Chevrolet Corvette Owner Manual (GMNA-Localizing-U.S./Canada/Mexico-
12470550) - 2020 - CRC - 4/23/20
198 Driving and Operating
While pressing the accelerator pedal
or shortly following the release to
override cruise control, briefly
pressing SET–will result in cruise
set to the current vehicle speed.
Using Cruise Control on Hills
How well the cruise control works
on hills depends upon the vehicle
speed, load, and the steepness of
the hills. When going up steep hills,
you may have to step on the
accelerator pedal to maintain your
speed. When going downhill, you
may have to brake or shift to a lower
gear to keep your speed down.
If the brake pedal is applied, cruise
control will disengage. Cruise Control in Manual Paddle
Shift Gear Selection
When the vehicle is in M (Manual
Mode) and the manual paddle shift
controls are not being used, cruise
control operates in the same
manner as D (Drive).
When the vehicle is in M (Manual
Mode) and the manual paddle shift
controls are being used, cruise
control operates as follows:
.
If cruise control is active and a
gear is selected with the manual
paddle shift controls, the vehicle
speed is maintained in the driver
selected gear and will not
automatically upshift or
downshift the transmission while
the driver ’s gear selection is
active.
. If driving in hilly terrain, cruise
control may not be able to
maintain vehicle speed if an
upshift or downshift is not
selected by the driver. While
driving on hilly terrain and cruise
control is active with a manual
paddle shift gear selection, the
driver must select the proper gear for the terrain or select D
(Drive) on the shifter for full
automatic transmission
operation.
Ending Cruise Control
. Step lightly on the brake pedal.
. Shift the transmission to
N (Neutral).
. Press
*.
. To turn off cruise control,
press
1.
Erasing Speed Memory
The cruise control set speed is
erased from memory if
1is pressed
or if the ignition is turned off.

Chevrolet Corvette Owner Manual (GMNA-Localizing-U.S./Canada/Mexico-
12470550) - 2020 - CRC - 4/23/20
244 Vehicle Care
FusesUsage
18 Engine control module
19 –
20 Sensing and diagnostic module/
Inside rear view
mirror
21 Exhaust valve solenoid
22 Fuel pump/Fuel tank zone module
23 Tonneau left
24 Tonneau right
25 Convertible top right
26 Convertible top left
27 Electronic suspension control
28 –
29 CGM
30 O2 sensor Fuses
Usage
31 O2 sensor/Engine oil/Canister purge/
Active fuel
management
32 Ignition even
33 Ignition odd
34 Engine control module 1
35 Engine control module/Mass air
flow sensor/O2
sensor/Air
conditioning
36 –
37 Canister vent
38 Latch control module
39 Right window switch/Door lock
40 Left window switch/ Door lock
41 –
42 Engine control module 2 Fuses
Usage
43 –
44 Air conditioning clutch
45 –
46 –
47 –
48 –
49 Auxiliary cooling fan right
50 –
51 –
52 –
53 Starter solenoid
54 Auxiliary cooling fan left
55 Front lift/Automatic leveling control
56 –
57 Rear window defogger
58 –

Chevrolet Corvette Owner Manual (GMNA-Localizing-U.S./Canada/Mexico-
12470550) - 2020 - CRC - 4/23/20
256 Vehicle Care
ensure that the replacement or
alternate tires and wheels allow the
TPMS to continue to function
properly.
SeeTire Pressure Monitor
Operation 0256.
See Radio Frequency Statement
0 312.
Tire Pressure Monitor
Operation
This vehicle may have a Tire
Pressure Monitor System (TPMS).
The TPMS is designed to warn the
driver when a low tire pressure
condition exists. TPMS sensors are
mounted onto each tire and wheel
assembly on your vehicle. The
TPMS sensors monitor the air
pressure in the tires and transmit
the tire pressure readings to a
receiver located in the vehicle.
When a low tire pressure condition
is detected, the TPMS illuminates
the low tire pressure warning light,
located in the instrument cluster.
If the warning light comes on, stop
as soon as possible and inflate the
tires to the recommended pressure
shown on the tire loading
information label. See Vehicle Load
Limits 0160.
A message to check the pressure in
a specific tire displays in the Driver
Information Center (DIC). The low
tire pressure warning light and the
DIC warning message appear at
each ignition cycle until the tires are
inflated to the correct inflation
pressure. Using the DIC, tire
pressure levels can be viewed. For
additional information and details
about the DIC operation and
displays see Driver Information
Center (DIC) 0108. The low tire pressure warning light
may come on in cool weather when
the vehicle is first started, and then
turn off as the vehicle is driven. This
could be an early indicator that the
air pressure is getting low and
needs to be inflated to the proper
pressure.
A Tire and Loading Information label
shows the size of the original
equipment tires and the correct
inflation pressure for the tires when
they are cold. See
Vehicle Load
Limits 0160, for an example of the
Tire and Loading Information label
and its location. Also see Tire
Pressure 0253 for additional
information.
The TPMS can warn about a low
tire pressure condition but it does
not replace normal tire
maintenance. See Tire Inspection
0 259, Tire Rotation 0259, When It
Is Time for New Tires 0260, and
Tires 0245.

Chevrolet Corvette Owner Manual (GMNA-Localizing-U.S./Canada/Mexico-
12470550) - 2020 - CRC - 4/23/20
Vehicle Care 257
Caution
Tire sealant materials are not all
the same. A non-approved tire
sealant could damage the TPMS
sensors. TPMS sensor damage
caused by using an incorrect tire
sealant is not covered by the
vehicle warranty. Always use only
the GM approved tire sealant
available through your dealer or
included in the vehicle.
TPMS Malfunction Light and
Message
The TPMS will not function properly
if one or more of the TPMS sensors
are missing or inoperable. When the
system detects a malfunction, the
low tire pressure warning light
flashes for about one minute and
then stays on for the remainder of
the ignition cycle. A DIC warning
message also displays. The
malfunction light and DIC warning
message come on at each ignitioncycle until the problem is corrected.
Some of the conditions that can
cause these to come on are:
.
One of the road tires has been
replaced with the spare tire. The
spare tire does not have a
TPMS sensor. The malfunction
light and DIC message should
go off after the road tire is
replaced and the sensor
matching process is performed
successfully. See "TPMS Sensor
Matching Process" later in this
section.
. The TPMS sensor matching
process was not done or not
completed successfully after
rotating the tires. The
malfunction light and the DIC
message should go off after
successfully completing the
sensor matching process.
. One or more TPMS sensors are
missing or damaged. The
malfunction light and the DIC
message should go off when the
TPMS sensors are installed and
the sensor matching process is
performed successfully. .
Replacement tires or wheels do
not match the original equipment
tires or wheels. Tires and wheels
other than those recommended
could prevent the TPMS from
functioning properly. See Buying
New Tires 0261.
. Operating electronic devices or
being near facilities using radio
wave frequencies similar to the
TPMS could cause the TPMS
sensors to malfunction.
If the TPMS is not functioning
properly, it cannot detect or signal a
low tire pressure condition. See
your dealer for service if the TPMS
malfunction light and DIC message
come on and stays on.
Tire Fill Alert (If Equipped)
This feature provides visual and
audible alerts outside the vehicle to
help when inflating an underinflated
tire to the recommended cold tire
pressure.
When the low tire pressure warning
light comes on:

Chevrolet Corvette Owner Manual (GMNA-Localizing-U.S./Canada/Mexico-
12470550) - 2020 - CRC - 4/23/20
Vehicle Care 269
Caution
If the other vehicle does not have
a 12-volt system with a negative
ground, both vehicles can be
damaged. Only use a vehicle that
has a 12-volt system with a
negative ground for jump starting.
2. Get the vehicles close enough so the jumper cables can
reach, but be sure the vehicles
are not touching each other.
If they are, it could cause a
ground connection you do not
want. You would not be able to
start the vehicle, and the bad
grounding could damage the
electrical systems.
To avoid the possibility of the
vehicles rolling, set the parking
brake firmly on both vehicles
involved in the jump start
procedure. Put an automatic
transmission in P (Park) or a
manual transmission in Neutral
before setting the parking
brakes.
Caution
If any accessories are left on or
plugged in during the jump
starting procedure, they could be
damaged. The repairs would not
be covered by the vehicle
warranty. Whenever possible, turn
off or unplug all accessories on
either vehicle when jump starting.
3. Turn off the ignition on both vehicles. Unplug unnecessary
accessories plugged into the
cigarette lighter or the
accessory power outlet. Turn
off the radio and all lamps that
are not needed. This will avoid
sparks and help save both
batteries. And it could save the
radio!
4. Open the hood. See Hood
0 21.
5. Release the four clips for the
left and right outer covers.

Chevrolet Corvette Owner Manual (GMNA-Localizing-U.S./Canada/Mexico-
12470550) - 2020 - CRC - 4/23/20
318 OnStar
Security
If equipped, OnStar provides these
services:
.With Stolen Vehicle Assistance,
OnStar Advisors can use GPS to
pinpoint the vehicle and help
authorities quickly recover it.
. With Remote Ignition Block,
if equipped, OnStar can block
the engine from being restarted.
. With Stolen Vehicle Slowdown,
if equipped, OnStar can work
with law enforcement to
gradually slow the vehicle down.
Theft Alarm Notification
If equipped, if the doors are locked
and the vehicle alarm sounds, a
notification by text, e-mail, or phone
call will be sent. If the vehicle is
stolen, an OnStar Advisor can work
with authorities to recover the
vehicle.
OnStar Additional
Information
In-Vehicle Audio Messages
Audio messages may play important
information at the following times:
.
Prior to vehicle purchase. Press
|to set up an account.
. After change in ownership and
at 90 days.
Transferring Service
Press|to request account transfer
eligibility information. The Advisor
can cancel or change account
information.
Selling/Transferring the
Vehicle
Call 1-888-4ONSTAR
(1-888-466-7827) immediately to
terminate your OnStar or connected
services if the vehicle is disposed
of, sold, transferred, or if the
lease ends.
Reactivation for Subsequent
Owners
Press|and follow the prompts to
speak to an Advisor as soon as
possible. The Advisor will update
vehicle records and explain OnStar
or connected service options.
How OnStar Service Works
Automatic Crash Response,
Emergency Services, Crisis Assist,
Stolen Vehicle Assistance, Remote
Services, and Roadside Assistance
are available on most vehicles. Not
all OnStar services are available
everywhere or on all vehicles. For
more information, a full description
of OnStar services, system
limitations, and OnStar User Terms,
Privacy Statement, and Software
Terms:
. Call 1-888-4ONSTAR
(1-888-466-7827).
. See www.onstar.com (U.S.).
. See www.onstar.ca (Canada).
. Call TTY 1-877-248-2080.

Chevrolet Corvette Owner Manual (GMNA-Localizing-U.S./Canada/Mexico-
12470550) - 2020 - CRC - 4/23/20
320 OnStar
Languages
The vehicle can be programmed to
respond in multiple languages.
Press
|and ask for an Advisor.
Advisors are available in English,
Spanish, and French. Available
languages may vary by country.
Potential Issues
OnStar cannot perform Remote
Door Unlock or Stolen Vehicle
Assistance after the vehicle has
been off continuously for 10 days
without an ignition cycle. If the
vehicle has not been started for
10 days, OnStar can contact
Roadside Assistance or a locksmith
to help gain access to the vehicle.
Global Positioning
System (GPS)
. Obstruction of the GPS can
occur in a large city with tall
buildings; in parking garages;
around airports; in tunnels and
underpasses; or in an area with
very dense trees. If GPS signals
are not available, the OnStar
system should still operate to call OnStar. However, OnStar
could have difficulty identifying
the exact location.
. In emergency situations, OnStar
can use the last stored GPS
location to send to emergency
responders.
A temporary loss of GPS can cause
loss of the ability to send a
Turn-by-Turn Navigation route. The
Advisor may give a verbal route or
may ask for a call back after the
vehicle is driven into an open area.
Cellular and GPS Antennas
Cellular reception is required for
OnStar to send remote signals to
the vehicle. Do not place items over
or near the antenna to prevent
blocking cellular and GPS signal
reception.
Unable to Connect to OnStar
Message
If there is limited cellular coverage
or the cellular network has reached
maximum capacity, this message may come on. Press
|to try the
call again or try again after driving a
few miles into another cellular area.
Vehicle and Power Issues
OnStar services require a vehicle
electrical system, wireless service,
and GPS satellite technologies to be
available and operating for features
to function properly. These systems
may not operate if the battery is
discharged or disconnected.
Add-On Electrical Equipment
The OnStar system is integrated
into the electrical architecture of the
vehicle. Do not add any electrical
equipment. See Add-On Electrical
Equipment 0208. Added electrical
equipment may interfere with the
operation of the OnStar system and
cause it to not operate.
Vehicle Software Updates
OnStar or GM may remotely deliver
software updates or changes to the
vehicle without further notice or
consent. These updates or changes
may enhance or maintain safety,
security, or the operation of the

Chevrolet Corvette Owner Manual (GMNA-Localizing-U.S./Canada/Mexico-
12470550) - 2020 - CRC - 4/23/20
Index 329
GaugesEngine Coolant Temperature . . . 99
Fuel . . . . . . . . . . . . . . . . . . . . . . . . . . . . 98
Odometer . . . . . . . . . . . . . . . . . . . . . . . 98
Speedometer . . . . . . . . . . . . . . . . . . . 98
Tachometer . . . . . . . . . . . . . . . . . . . . . 98
Transmission Temperature . . . . . . 99
Trip Odometer . . . . . . . . . . . . . . . . . . 98
Warning Lights and
Indicators . . . . . . . . . . . . . . . . . . . . . 93
General Information
Service and Maintenance . . . . . 284
Towing . . . . . . . . . . . . . . . . . . . . . . . . 208
Vehicle Care . . . . . . . . . . . . . . . . . . 210
Glove Box . . . . . . . . . . . . . . . . . . . . . . . 83
GM Mobility Reimbursement Program . . . . . . . . . . . . . . . . . . . . . . . 306
H
Hatch . . . . . . . . . . . . . . . . . . . . . . . . . . . . 23
Hazard Warning Flashers . . . . . . . 128
Head Restraints . . . . . . . . . . . . . . . . . 47
Head-up Display . . . . . . . . . . . . . . . . 110
HeadlampsAiming . . . . . . . . . . . . . . . . . . . . . . . . 238
Automatic . . . . . . . . . . . . . . . . . . . . . 127
Daytime RunningLamps (DRL) . . . . . . . . . . . . . . . . 126 Headlamps (cont'd)
Flash-to-Pass . . . . . . . . . . . . . . . . . 126
High-Beam On Light . . . . . . . . . . 107
High/Low Beam Changer . . . . . 126
Lamps On Reminder . . . . . . . . . 108
Heated Steering Wheel . . . . . . . . . . . . . . . . . 87
Heated and Ventilated Front Seats . . . . . . . . . . . . . . . . . . . . . . . . . . 53
Heated Mirrors . . . . . . . . . . . . . . . . . . . 31
Heating . . . . . . . . . . . . . . . . . . . . . . . . . 139
High-Beam On Light . . . . . . . . . . . . 107
High-Speed Operation . . . . . . . . . . 254
Hill and Mountain Roads . . . . . . . . 157
Hill Rollback Control . . . . . . . . . . . . 184
Hill Start Assist (HSA) . . . . . . . . . . 181
Hood . . . . . . . . . . . . . . . . . . . . . . . . . . . . 21
Horn . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 87
How to Wear Seat Belts Properly . . . . . . . . . . . . . . . . . . . . . . . . 56
HVAC . . . . . . . . . . . . . . . . . . . . . . . . . . . 139
I
Ignition Positions . . . . . . . . . . . . . . . 165
Immobilizer . . . . . . . . . . . . . . . . . . . . . . 28
Infants and Young Children,
Restraints . . . . . . . . . . . . . . . . . . . . . . 75 Information
Publication Ordering . . . . . . . . . . .311
Infotainment . . . . . . . . . . . . . . . . . . . . 132
Infotainment System . . . . . . . . . . . . 315
Instrument Cluster . . . . . . . . . . . . . . . 94
Instrument Panel Overview . . . . . . . 5
Interior Rearview Mirrors . . . . . . . . . 32
Introduction . . . . . . . . . . . . . . . . . . . . . . . 2
J
Jump Starting - North America . . . . . . . . . . . . . . . . . . . . . . . 267
K
Keyless Entry
Remote (RKE) System . . . . . . . . . . 9
Keys . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7
L
Labeling, Tire Sidewall . . . . . . . . . . 249
Lamps
Courtesy . . . . . . . . . . . . . . . . . . . . . . 129
Daytime Running (DRL) . . . . . . 126
Engine Compartment . . . . . . . . . 129
Exterior Controls . . . . . . . . . . . . . . 125
Exterior Lamps OffReminder . . . . . . . . . . . . . . . . . . . 126
Exterior Lighting Battery
Saver . . . . . . . . . . . . . . . . . . . . . . . 131