2019 CHEVROLET CORVETTE engine overheat

Chevrolet Corvette Owner Manual (GMNA-Localizing-U.S./Canada/Mexico-
12032182) - 2019 - crc - 5/8/18
244 Vehicle Care
.Will not damage aluminum parts.
. Helps keep the proper engine
temperature.
Caution
Do not use anything other than a
mix of DEX-COOL coolant that
meets GM Standard
GMW3420 and clean, drinkable
water. Anything else can cause
damage to the engine cooling
system and the vehicle, which
would not be covered by the
vehicle warranty.
Never dispose of engine coolant by
putting it in the trash, pouring it on
the ground, or into sewers, streams,
or bodies of water. Have the coolant
changed by an authorized service
center, familiar with legal
requirements regarding used
coolant disposal. This will help
protect the environment and your
health. If ambient temperatures are
anticipated below
−28 °C (−18 °F),
make sure a proper mixture ratio of
50% DEX-COOL coolant and 50%
clean, drinkable water is used.Checking Coolant
The vehicle must be on a level
surface when checking the coolant
level.
Check to see if coolant is visible in
the coolant surge tank. If the coolant
inside the coolant surge tank is
boiling, do not do anything else until
it cools down. If coolant is visible
but the coolant level is not at or
above the cold fill line, add a
mixture of 40% DEX-COOL coolant
and 60% clean, drinkable water at
the coolant recovery tank, but be
sure the cooling system is cool
before this is done. See Engine
Overheating 0247.
The engine coolant surge tank is
toward the rear of the engine
compartment on the passenger side
of the vehicle. See Engine
Compartment Overview 0225. When the engine is cold, the coolant
level should be at the cold fill line on
the coolant surge tank.
When the engine is hot, the level
could be higher than the cold fill
line. If the coolant is below the cold
fill line when the engine is hot, there
could be a leak in the cooling
system.
If the coolant is low, add the coolant
or take the vehicle to your dealer for
service.
How to Add Coolant to the
Coolant Surge Tank
{Warning
Spilling coolant on hot engine
parts can burn you. Coolant
contains ethylene glycol and it will
burn if the engine parts are hot
enough.

Chevrolet Corvette Owner Manual (GMNA-Localizing-U.S./Canada/Mexico-
12032182) - 2019 - crc - 5/8/18
Vehicle Care 247
Cooling System
(Intercooler on LT4 and
LT5 Engines)
Engine performance can be greatly
reduced when the intercooler
system is not completely full. If there
is a decrease in engine
performance, or if the intercooler
system has experienced a loss of
coolant, see your dealer.
Engine Overheating
The vehicle has several indicators
to warn of engine overheating.
There is an engine coolant
temperature gauge on the
instrument cluster. SeeEngine
Coolant Temperature Gauge 0110.
The vehicle may also display a
message on the Driver Information
Center (DIC).
If the decision is made not to lift the
hood but to get service help right
away, see Roadside Assistance
Program 0334. If the decision is made to lift the
hood, make sure the vehicle is
parked on a level surface.
Then check to see if the engine
cooling fan is running. If the engine
is overheating, the fan should be
running. If it is 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
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
(Continued)
Warning (Continued)
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.
If Steam Is Coming from the
Engine Compartment with no
Overheat Warning
The hood vent opening, if equipped,
will allow water from rain and car
washes to enter the engine
compartment and contact hot
surfaces. If steam is coming from
the hood vent opening 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

Chevrolet Corvette Owner Manual (GMNA-Localizing-U.S./Canada/Mexico-
12032182) - 2019 - crc - 5/8/18
248 Vehicle Care
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 temperature overheat 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,
stop, 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
Open the cap with the washer
symbol on it. Add washer fluid until
the tank is full. See
Engine
Compartment Overview 0225.
Caution
.
Do not use washer fluid that
contains any type of water
repellent coating. This can
cause the wiper blades to
chatter or skip.
. Do not use engine coolant
(antifreeze) in the
windshield washer. It can
damage the windshield
washer system and paint.
(Continued)

Chevrolet Corvette Owner Manual (GMNA-Localizing-U.S./Canada/Mexico-
12032182) - 2019 - crc - 5/8/18
Index 359
E
Electric Parking Brake . . . . . . . . . . 195
Electric Parking Brake Light . . . . 116
Electrical Equipment,Add-On . . . . . . . . . . . . . . . . . . . . . . . 216
Electrical System Engine Compartment FuseBlock . . . . . . . . . . . . . . . . . . . . . . . . 259
Fuses . . . . . . . . . . . . . . . . . . . . . . . . 258
Overload . . . . . . . . . . . . . . . . . . . . . 258
Rear Compartment Fuse Block . . . . . . . . . . . . . . . . . . . . . . . . 262
Electronic Stability Control (ESC) Off Light . . . . . . . . . . . . . . . . 118
Emergency OnStar . . . . . . . . . . . . . . . . . . . . . . . 346
Engine Air Cleaner/Filter . . . . . . . . . . . . . 239
Check Light (MalfunctionIndicator) . . . . . . . . . . . . . . . . . . . . .113
Compartment Overview . . . . . . . 225
Coolant Temperature Gauge . . . . . . . . . . . . . . . . . . . . . . .110
Coolant Temperature
Warning Light . . . . . . . . . . . . . . . .118
Cooling System . . . . . 242, 246, 247
Drive Belt Routing . . . . . . . . . . . . 329
Exhaust . . . . . . . . . . . . . . . . . . . . . . 186 Engine (cont'd)
Oil Life System . . . . . . . . . . . . . . . 237
Oil Pressure Light . . . . . . . . . . . . .119
Overheating . . . . . . . . . . . . . . . . . . 247
Power Messages . . . . . . . . . . . . . 128
Running While Parked . . . . . . . . 187
Starting . . . . . . . . . . . . . . . . . . . . . . . 182
Entry Lighting . . . . . . . . . . . . . . . . . . . 143
Event Data Recorders . . . . . . . . . . 342
Exit Lighting . . . . . . . . . . . . . . . . . . . . 143
Extended Parking . . . . . . . . . . . . . . . 186
Extender, Seat Belt . . . . . . . . . . . . . . 72
Exterior Lamp Controls . . . . . . . . . 139
Exterior Lamps Off Reminder . . . 139
Exterior Lighting Battery Saver . . . . . . . . . . . . . . . . . . . . . . . . . 144
F
FeaturesMemory . . . . . . . . . . . . . . . . . . . . . . . . . 12
Filter, Engine Air Cleaner . . . . . . . . . . . 239
Flash-to-Pass . . . . . . . . . . . . . . . . . . . 140
Flashers, Hazard Warning . . . . . . 142
Flat Tire . . . . . . . . . . . . . . . . . . . . . . . . 286
Floor Mats . . . . . . . . . . . . . . . . . . . . . . 309
Fluid Automatic Transmission . . . . . . 238 Fluid (cont'd)
Brakes . . . . . . . . . . . . . . . . . . . . . . . . 250
Washer . . . . . . . . . . . . . . . . . . . . . . . 248
Folding Mirrors . . . . . . . . . . . . . . . . . . 45
Frequency Statement
Radio . . . . . . . . . . . . . . . . . . . . . . . . . 340
Front Air Dam . . . . . . . . . . . . . . . . . . 179
Front Seats Heated and Ventilated . . . . . . . . . . 65
Fuel Additives . . . . . . . . . . . . . . . . . . . . . 213
Economy Driving . . . . . . . . . . . . . . . 24
Filling a Portable FuelContainer . . . . . . . . . . . . . . . . . . . 215
Filling the Tank . . . . . . . . . . . . . . . 214
Foreign Countries . . . . . . . . . . . . 213
Gauge . . . . . . . . . . . . . . . . . . . . . . . . 109
Low Fuel Warning Light . . . . . . . .119
Management, Active . . . . . . . . . . 185
Prohibited Fuels . . . . . . . . . . . . . . 213
Recommended . . . . . . . . . . 212, 213
Top Tier . . . . . . . . . . . . . . . . . . . . . . 212
Fuses . . . . . . . . . . . . . . . . . . . . . . . . . . 258
Engine Compartment FuseBlock . . . . . . . . . . . . . . . . . . . . . . . . 259
Rear Compartment Fuse Block . . . . . . . . . . . . . . . . . . . . . . . . 262

Chevrolet Corvette Owner Manual (GMNA-Localizing-U.S./Canada/Mexico-
12032182) - 2019 - crc - 5/8/18
362 Index
Messages (cont'd)Vehicle Speed . . . . . . . . . . . . . . . . 128
Mirrors Automatic Dimming . . . . . . . . . . . . . 45
Automatic Dimming
Rearview . . . . . . . . . . . . . . . . . . . . . . 46
Convex . . . . . . . . . . . . . . . . . . . . . . . . . 44
Folding . . . . . . . . . . . . . . . . . . . . . . . . . 45
Heated . . . . . . . . . . . . . . . . . . . . . . . . . 45
Manual Rearview . . . . . . . . . . . . . . . 45
Power . . . . . . . . . . . . . . . . . . . . . . . . . . 44
Tilt in Reverse . . . . . . . . . . . . . . . . . . 45
Mirrors, Interior Rearview . . . . . . . . 45
Mode . . . . . . . . . . . . . . . . . . . . . . . . . . . 200 Driver Control . . . . . . . . . . . . . . . . . 200
Monitor System, Tire Pressure . . . . . . . . . . . . . . . . . . . . . . 275
N
NavigationConnected Services . . . . . . . . . . 352
Net, Convenience . . . . . . . . . . . . . . . 97
New Vehicle Break-In . . . . . . . . . . . 179
O
Odometer . . . . . . . . . . . . . . . . . . . . . . . 108 Trip . . . . . . . . . . . . . . . . . . . . . . . . . . . 108
Off-Road Recovery . . . . . . . . . . . . . . . . . . . . . 160 Oil
Engine . . . . . . . . . . . . . . . . . . . . . . . . 232
Engine Oil Life System . . . . . . . 237
Pressure Light . . . . . . . . . . . . . . . . .119
Older Children, Restraints . . . . . . . 85
Online Owner Center . . . . . . . . . . . 333
OnStar . . . . . . . . . . . . . . . . . . . . . . . . . 343
OnStar Additional Information . . . . . . . . . . . . . . . . . . . . 346
OnStar Emergency . . . . . . . . . . . . . 346
OnStar Overview . . . . . . . . . . . . . . . 344
OnStar Security . . . . . . . . . . . . . . . . 346
Outlets Power . . . . . . . . . . . . . . . . . . . . . . . . 101
Overheating, Engine . . . . . . . . . . . . 247
P
Panel, Roof . . . . . . . . . . . . . . . . . . . . . . 48
Park Shifting Into . . . . . . . . . . . . . . . . . . . 184
Shifting Out of . . . . . . . . . . . . . . . . 185
Park Assist . . . . . . . . . . . . . . . . . . . . . 210
Parking . . . . . . . . . . . . . . . . . . . . . . . . . 185 Brake and P (Park)Mechanism Check . . . . . . . . . . 254
Extended . . . . . . . . . . . . . . . . . . . . . 186
Over Things That Burn . . . . . . . 185 Parking or Backing
Assistance Systems . . . . . . . . . . 210
Passenger Airbag Status Indicator . . . . . . . . . . . . . . . . . . . . . . 112
Passenger Compartment Air Filter . . . . . . . . . . . . . . . . . . . . . . . . . . 155
Passenger Sensing System . . . . . 79
Perchlorate Materials
Requirements, California . . . . . . 220
Performance Data Recorder (PDR) . . . . . . . . . . . . . . . 145
Personalization Vehicle . . . . . . . . . . . . . . . . . . . . . . . 128
Power Door Locks . . . . . . . . . . . . . . . . . . . . . 36
Mirrors . . . . . . . . . . . . . . . . . . . . . . . . . . 44
Outlets . . . . . . . . . . . . . . . . . . . . . . . 101
Protection, Battery . . . . . . . . . . . . 144
Retained Accessory (RAP) . . . 183
Seat Adjustment . . . . . . . . . . . . . . . . 59
Windows . . . . . . . . . . . . . . . . . . . . . . . 46
Pregnancy, Using Seat Belts . . . . 72
Privacy Vehicle Data Recording . . . . . . . 342
Program
Courtesy Transportation . . . . . . 336
Prohibited Fuels . . . . . . . . . . . . . . . . 213