coolant temperature CHEVROLET CORVETTE 2020 User Guide

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.

Chevrolet Corvette Owner Manual (GMNA-Localizing-U.S./Canada/Mexico-
12470550) - 2020 - CRC - 4/23/20
Vehicle Care 231
If Steam Is Coming from the
Engine Compartment with no
Overheat Warning
Water from rain and car washes
could enter the engine compartment
and contact hot surfaces. If steam is
coming from the engine
compartment with no accompanying
overheat warning, no service is
needed.
If No Steam Is Coming from
the Engine
If an engine overheat warning is
displayed but no steam can be seen
or heard, the problem may not be
too serious. Sometimes the engine
can get a little too hot when the
vehicle:
.Climbs a long hill on a hot day.
. Stops after high-speed driving.
. Idles for long periods in traffic.
If the overheat warning is displayed
with no sign of steam: 1. Turn the air conditioning off. 2. Turn the heater on to the
highest temperature and to the
highest fan speed. Open the
windows as necessary.
3. When it is safe to do so, pull off the road, shift to P (Park) or
N (Neutral), and let the
engine idle.
If the engine coolant temperature
gauge is no longer in the shaded
area or an overheat warning no
longer displays, the vehicle can be
driven. Continue to drive the vehicle
slowly for about 10 minutes. Keep a
safe vehicle distance from the
vehicle in front. If the warning does
not come back on, continue to drive
normally and have the cooling
system checked for proper fill and
function.
If the warning continues, pull over
safely, and park the vehicle
right away.
If there is no sign of steam, idle the
engine for three minutes while
parked. If the warning is still
displayed, turn off the engine until it
cools down.
Washer Fluid
What to Use
When the vehicle needs windshield
washer fluid, be sure to read the
manufacturer instructions before
use. If the vehicle will be operating
in an area where the temperature
may fall below freezing, use a fluid
that has sufficient protection against
freezing.
Adding Washer Fluid
1. Open the hood. See Hood
0 21.
2. Open the cap with the washer
symbol on it. Add washer fluid
until the tank is full.

Chevrolet Corvette Owner Manual (GMNA-Localizing-U.S./Canada/Mexico-
12470550) - 2020 - CRC - 4/23/20
Index 327
ControlHill Rollback . . . . . . . . . . . . . . . . . . 184
Traction and Electronic
Stability . . . . . . . . . . . . . . . . . . . . . 182
Control of a Vehicle . . . . . . . . . . . . . 148
Convenience Net . . . . . . . . . . . . . . . . 85
Convertible Top . . . . . . . . . . . . . . . . . . 41
Convex Mirrors . . . . . . . . . . . . . . . . . . 29
Coolant Engine Temperature Gauge . . . . 99
Cooling . . . . . . . . . . . . . . . . . . . . . . . . . 139
Cooling System . . . . . . . . . . . . . . . . . 226
Courtesy Lamps . . . . . . . . . . . . . . . . 129
Courtesy Transportation
Program . . . . . . . . . . . . . . . . . . . . . . . 308
Cruise Control . . . . . . . . . . . . . . . . . . 196
Light . . . . . . . . . . . . . . . . . . . . . . . . . . 108
Cupholders . . . . . . . . . . . . . . . . . . . . . . 83
Customer Assistance . . . . . . . . . . . 305 Offices . . . . . . . . . . . . . . . . . . . . . . . . 304
Text Telephone (TTY)Users . . . . . . . . . . . . . . . . . . . . . . . 305
Customer Information Publications OrderingInformation . . . . . . . . . . . . . . . . . . .311
Customer Satisfaction Procedure . . . . . . . . . . . . . . . . . . . . . 302
Cybersecurity . . . . . . . . . . . . . . . . . . . 314D
Damage Repair, Collision . . . . . . . 309
Danger, Warning, and Caution . . . . 3
Data Collection Infotainment System . . . . . . . . . . 315
OnStar . . . . . . . . . . . . . . . . . . . . . . . 315
Data Recorder Performance . . . . . . . . . . . . . . . . . . 132
Data Recorders, Event . . . . . . . . . 314
Daytime Running Lamps (DRL) . . . . . . . . . . . . . . . . . . 126
Defensive Driving . . . . . . . . . . . . . . . 147
Delayed Locking . . . . . . . . . . . . . . . . . 20
Diagnostics Connected Services . . . . . . . . . . 324
Differential, Limited-Slip . . . . . . . . 195
Distracted Driving . . . . . . . . . . . . . . . 146
Door Ajar Light . . . . . . . . . . . . . . . . . . . . . 108
Delayed Locking . . . . . . . . . . . . . . . . 20
Locks . . . . . . . . . . . . . . . . . . . . . . . . . . . 17
Drive Belt Routing, Engine . . . . . . 301
Driver Assistance Systems . . . . . 199
Driver Information Center (DIC) . . . . . . . . . . . . . . . . . . 108
Driver Mode Control . . . . . . . . . . . . 184
Driving Better Fuel Economy . . . . . . . . . 146 Driving (cont'd)
Competitive . . . . . . . . . . . . . . . . . . . 192
Defensive . . . . . . . . . . . . . . . . . . . . . 147
Drunk . . . . . . . . . . . . . . . . . . . . . . . . . 147
Hill and Mountain Roads . . . . . . 157
If the Vehicle is Stuck . . . . . . . . . 159
Loss of Control . . . . . . . . . . . . . . . 150
Off-Road Recovery . . . . . . . . . . . 149
Track Events and
Competitive . . . . . . . . . . . . . . . . . 150
Vehicle Load Limits . . . . . . . . . . . 160
Wet Roads . . . . . . . . . . . . . . . . . . . 156
Winter . . . . . . . . . . . . . . . . . . . . . . . . 158
Dual Automatic Climate Control System . . . . . . . . . . . . . . . . 139
Dual Clutch Transmission . . . . . . 171
Manual Mode . . . . . . . . . . . . . . . . . 174
Dual Clutch Transmission Fluid . . . . . . . . . . . . . . . . . . . . . . . . . . 222
Dual Clutch Transmission Fluid Life System . . . . . . . . . . . . . . 223
E
Electric Brake Boost . . . . . . . . . . . . 179
Electric Parking Brake . . . . . . . . . . 179
Electric Parking Brake Light . . . . 104
Electrical Equipment,
Add-On . . . . . . . . . . . . . . . . . . . . . . . 208

Chevrolet Corvette Owner Manual (GMNA-Localizing-U.S./Canada/Mexico-
12470550) - 2020 - CRC - 4/23/20
328 Index
Electrical SystemFuses and Circuit Breakers . . . 239
Instrument Panel Fuse
Block . . . . . . . . . . . . . . . . . . . . . . . . 239
Overload . . . . . . . . . . . . . . . . . . . . . 239
Rear Compartment Fuse Block . . . . . . . . . . . . . . . . . . . . . . . . 242
Electronic Stability Control (ESC) Off Light . . . . . . . . . . . . . . . . 106
Emergency OnStar . . . . . . . . . . . . . . . . . . . . . . . 317
Engine Air Cleaner/Filter . . . . . . . . . . . . . 224
Check Light (MalfunctionIndicator) . . . . . . . . . . . . . . . . . . . . 102
Compartment Overview . . . . . . . 215
Coolant Temperature Gauge . . . . 99
Cooling System . . . . . . . . . . . . . . . 226
Drive Belt Routing . . . . . . . . . . . . 301
Exhaust . . . . . . . . . . . . . . . . . . . . . . 170
Oil Life System . . . . . . . . . . . . . . . 221
Oil Pressure Light . . . . . . . . . . . . 107
Overheating . . . . . . . . . . . . . . . . . . 230
Power Messages . . . . . . . . . . . . . .115
Running While Parked . . . . . . . . 171
Starting . . . . . . . . . . . . . . . . . . . . . . . 166
Engine Air Filter Life System . . . . 224
Engine Compartment Lamp . . . . . 129 Entry Lighting . . . . . . . . . . . . . . . . . . . 130
Event Data Recorders . . . . . . . . . . 314
Exit Lighting . . . . . . . . . . . . . . . . . . . . 130
Extended Parking . . . . . . . . . . . . . . . 169
Extender, Seat Belt . . . . . . . . . . . . . . 61
Exterior Lamp Controls . . . . . . . . . 125
Exterior Lamps Off Reminder . . . 126
Exterior Lighting Battery
Saver . . . . . . . . . . . . . . . . . . . . . . . . . 131
F
Filter,Engine Air Cleaner . . . . . . . . . . . 224
Flash-to-Pass . . . . . . . . . . . . . . . . . . . 126
Flashers, Hazard Warning . . . . . . 128
Flat Tire . . . . . . . . . . . . . . . . . . . . . . . . 267
Floor Mats . . . . . . . . . . . . . . . . . . . . . . 282
Fluid Brakes . . . . . . . . . . . . . . . . . . . . . . . . 233
Dual Clutch Transmission . . . . 222
Dual Clutch TransmissionLife System . . . . . . . . . . . . . . . . . 223
Washer . . . . . . . . . . . . . . . . . . . . . . . 231
Folding Mirrors . . . . . . . . . . . . . . . . . . 30
Frequency Statement Radio . . . . . . . . . . . . . . . . . . . . . . . . . 312
Front Air Dam . . . . . . . . . . . . . . . . . . 164
Front Lift System . . . . . . . . . . . . . . . 191 Front Lift System Light . . . . . . . . . . 103
Front Seats
Heated and Ventilated . . . . . . . . . . 53
Front Storage . . . . . . . . . . . . . . . . . . . . 83
Fuel Additives . . . . . . . . . . . . . . . . . . . . . 205
Economy, Driving for Better . . . 146
Filling a Portable FuelContainer . . . . . . . . . . . . . . . . . . . 207
Filling the Tank . . . . . . . . . . . . . . . 205
Foreign Countries . . . . . . . . . . . . 205
Gauge . . . . . . . . . . . . . . . . . . . . . . . . . . 98
Management, Active . . . . . . . . . . 169
Prohibited Fuels . . . . . . . . . . . . . . 205
Recommended . . . . . . . . . . . . . . . 204
Top Tier . . . . . . . . . . . . . . . . . . . . . . 204
Fuses Fuses and Circuit Breakers . . . 239
Instrument Panel FuseBlock . . . . . . . . . . . . . . . . . . . . . . . . 239
Rear Compartment Fuse
Block . . . . . . . . . . . . . . . . . . . . . . . . 242
G
Garage Door Opener . . . . . . . . . . . 121Programming . . . . . . . . . . . . . . . . . 121
Gas Strut(s) . . . . . . . . . . . . . . . . . . . . 237

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