2024 CHEVROLET CORVETTE heating

Chevrolet Corvette Owner Manual (GMNA-Localizing-U.S./Canada/Mexico-
17272984) - 2024 - CRC - 2/20/23
Vehicle Care 257
Caution
If the air cleaner/filter is off, dirt can
easily get into the engine, which
could damage it. Always have the air
cleaner/filter in place when driving.
Cooling System (Engine)
The engine cooling system allows the
engine to maintain the correct working
temperature. Vehicles equipped with
Electrified Propulsion (E-Ray) have additonal
cooling systems. See Cooling System
(Electrified Propulsion) later in this section.
E-Ray Convertible Shown, Stingray
Convertible and Z06 Convertible Similar
E-Ray Coupe Shown, Stingray Coupe and Z06 Coupe Similar
1. Engine Cooling Fans (Out of View)
2. Engine Coolant Surge Tank withPressure Cap
3. High Voltage Battery Coolant Reservoir (E-Ray Only).
{Warning
An underhood electric fan can start up
even when the engine is not running and
can cause injury. Keep hands, clothing,
and tools away from any underhood
electric fan.
{Warning
Do not touch heater or radiator hoses,
or other engine parts. They can be very
hot and can burn you. Do not run the
engine if there is a leak; all coolant could
leak out. That could cause an engine fire
and can burn you. Fix any leak before
driving the vehicle.
Engine Coolant
The cooling system in the vehicle is filled
with DEX-COOL engine coolant. See
Recommended Fluids and Lubricants 0320.
The fluid requires changing at certain
intervals. See Maintenance Schedule 0316.
The following explains the cooling system
and how to check and add coolant when it
is low. If there is a problem with engine
overheating, see Engine Overheating 0261.
What to Use
{Warning
Plain water, or other liquids such as
alcohol, can boil before the proper
coolant mixture will. With plain water or
(Continued)

Chevrolet Corvette Owner Manual (GMNA-Localizing-U.S./Canada/Mexico-
17272984) - 2024 - CRC - 2/20/23
258 Vehicle Care
Warning (Continued)
the wrong mixture, the engine could get
too hot but there would not be an
overheat warning. The engine could catch
fire and you or others could be burned.
Use a mixture of 40% DEX-COOL coolant and
60% clean, drinkable water. If using this
mixture, nothing else needs to be added.
This mixture:
.Gives freezing protection down to −28 °C
(−18 °F), outside temperature.
.Gives boiling protection up to 129 °C
(265 °F), engine temperature.
.Protects against rust and corrosion.
.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
Be sure the cooling system is cool and that
the vehicle is on a level surface.
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
0 261. The surge tank is in the engine
compartment. See
Engine Compartment
Overview 0238.
When the engine is cold, the coolant level
should be at the COLD FILL indicator in the
coolant surge tank.
When the engine is hot, the level could be
higher than the COLD FILL indicator. If the
coolant is below the COLD FILL indicator
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.

Chevrolet Corvette Owner Manual (GMNA-Localizing-U.S./Canada/Mexico-
17272984) - 2024 - CRC - 2/20/23
Vehicle Care 261
by your dealer. The high voltage cooling
system reservoirs have tamper- resistant
pressure caps. The coolant should only be
serviced by a qualified technician.
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 087. 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 0332.
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 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.
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,

Chevrolet Corvette Owner Manual (GMNA-Localizing-U.S./Canada/Mexico-
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Vehicle Care 267
12-Volt Lithium-Ion Battery (E-Ray)
{Warning
WARNING:Battery posts, terminals and
related accessories can expose you to
chemicals including lead and lead
compounds, which are known to the
State of California to cause cancer and
birth defects or other reproductive harm.
Wash hands after handling. For more
information go to
www.P65Warnings.ca.gov.
See California Proposition 65 Warning 01.
Charging the 12-volt Lithium-ion battery
The 12-volt lithium-ion battery can be
charged using a GM approved charger
designed for lithium-Ion batteries. Follow the
instructions that come with the GM
approved charger.
{Warning
Use only GM approved jump start boxes
and charging tools. Use of unapproved
jump start boxes, charging tools, a loose
battery, or battery charger may cause
personal injury, death, or damage to the (Continued)
Warning (Continued)
vehicle. For GM approved jump start
boxes or charging tools, see
https://gmdesolutions.com.
Use the Battery Voltage info tile to
determine if your battery is low and needs
to be charged. See Instrument Cluster081
under the “Info Tiles” section for more
information.
GM recommends charging your 12-volt
lithium-ion battery when storing your
vehicle for long periods of time. See “Vehicle
Storage” later on in this section.
If the vehicle isn’t starting and the 12-volt
lithium-ion battery has run down, charging
the 12-volt lithium-ion battery may solve the
issue. See Jump Starting - North America
0 299.
High Voltage Battery (E-Ray)
Only a trained service technician should
inspect, test, or replace the high voltage
battery. The dealer has information on
how to recycle the high voltage battery.
There is also information available at
https://www.recyclemybattery.com.
{Warning
Damage to the high voltage battery or
high voltage system can create a risk of
electric shock, overheating, or fire.
If the vehicle is damaged from a
moderate to severe crash, flood, fire,
or other event, the vehicle should be
inspected as soon as possible. Until the
vehicle has been inspected, store it
outside at least 15 m (50 ft) from any
structure or anything that can burn.
Ventilate the vehicle by opening a
window or a door.
Contact Customer Assistance as soon as
possible to determine whether an
inspection is needed. See Customer
Assistance Offices 0331.
If the vehicle is in a crash, the sensing
system may shut down the high voltage
system. When this occurs, the high voltage
battery is disconnected and the vehicle will
not start. The SERVICE VEHICLE SOON
message in the Driver Information Center
(DIC) will display. Before the vehicle can

Chevrolet Corvette Owner Manual (GMNA-Localizing-U.S./Canada/Mexico-
17272984) - 2024 - CRC - 2/20/23
Vehicle Care 279
RelaysUsage
1 Starter Pinion Relay
2 Powertrain Relay
3 Run/Crank Relay
4 Rear Defogger Relay 5 Air Conditioning Clutch Relay
6 –
7 –
8 –
9 –
10 –
11 –
12 –
13 –
14 Starter Solenoid Relay 15 Fuel Tank Zone Module RelayWheels and Tires
Tires
Every new GM vehicle has high-quality
tires made by a leading tire
manufacturer. See the warranty manual
for information regarding the tire
warranty and where to get service. For
additional information refer to the tire
manufacturer.
{Warning
.Poorly maintained and improperly
used tires are dangerous.
.Overloading the tires can cause
overheating as a result of too
much flexing. There could be a
blowout and a serious crash. See
Vehicle Load Limits 0174.
.Underinflated tires pose the same
danger as overloaded tires. The
resulting crash could cause serious
injury. Check all tires frequently to
(Continued)
Warning (Continued)
maintain the recommended
pressure. Tire pressure should be
checked when the tires are cold.
.Overinflated tires are more likely
to be cut, punctured, or broken by
a sudden impact —such as when
hitting a pothole. Keep tires at the
recommended pressure.
.Worn or old tires can cause a
crash. If the tread is badly worn,
replace them.
.Replace any tires that have been
damaged by impacts with
potholes, curbs, etc.
.Improperly repaired tires can cause
a crash. Only your dealer or an
authorized tire service center
should repair, replace, dismount,
and mount the tires.
(Continued)

Chevrolet Corvette Owner Manual (GMNA-Localizing-U.S./Canada/Mexico-
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286 Vehicle Care
UTQGS (Uniform Tire Quality Grading
Standards)
:A tire information system
that provides consumers with ratings
for a tire's traction, temperature, and
treadwear. Ratings are determined by
tire manufacturers using government
testing procedures. The ratings are
molded into the sidewall of the tire.
See Uniform Tire Quality Grading 0295.
Vehicle Capacity Weight
:The number
of designated seating positions
multiplied by 68 kg (150 lbs) plus the
rated cargo load. See Vehicle Load
Limits 0174.
Vehicle Maximum Load on the Tire
:
Load on an individual tire due to curb
weight, accessory weight, occupant
weight, and cargo weight.
Vehicle Placard
:A label permanently
attached to a vehicle showing the
vehicle's capacity weight and the
original equipment tire size and
recommended inflation pressure. See
“Tire and Loading Information Label”
under Vehicle Load Limits 0174.
Tire Pressure
Tires need the correct amount of air
pressure to operate effectively.
{Warning
Neither tire underinflation nor
overinflation is good. Underinflated
tires, or tires that do not have
enough air, can result in:
.Tire overloading and overheating,
which could lead to a blowout
.Premature or irregular wear
.Poor handling
.Reduced fuel economy for
internal combustion engine
vehicles
.Reduced range for electric vehicles
(Continued)
Warning (Continued)
Overinflated tires, or tires that have
too much air, can result in:
.Unusual wear
.Poor handling
.Rough ride
.Needless damage from road
hazards
The Tire and Loading Information label
on the vehicle indicates the original
equipment tires and the correct cold
tire inflation pressures. The
recommended pressure is the minimum
air pressure needed to support the
vehicle's maximum load carrying
capacity. See Vehicle Load Limits 0174.
How the vehicle is loaded affects
vehicle handling and ride comfort.
Never load the vehicle with more
weight than it was designed to carry.

Chevrolet Corvette Owner Manual (GMNA-Localizing-U.S./Canada/Mexico-
17272984) - 2024 - CRC - 2/20/23
352 Index
Door (cont'd)Delayed Locking . . . . . . . . . . . . . . . . . . . . . . . . 16
Locks . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 13
Drive Belt Routing, Engine . . . . . . . . . . . . . . . 328
Drive Systems All-Wheel Drive . . . . . . . . . . . . . . . . . . . . . . . . . 191
Driver
Assistance Systems, Advanced . . . . . . . . . 214
Information Center (DIC) . . . . . . . . . . . . . . . . 99
Mode Control . . . . . . . . . . . . . . . . . . . . . . . . . . 196
Mode Control Light . . . . . . . . . . . . . . . . . . . . . 96
Teen . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 144
Driving Assistance Systems . . . . . . . . . . . . . . . . . . . . 218
Better Fuel Economy . . . . . . . . . . . . . . . . . . . 156
Defensive . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 157
Hill and Mountain Roads . . . . . . . . . . . . . . . 171
If the Vehicle is Stuck . . . . . . . . . . . . . . . . . . 173
Impaired . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 157
Loss of Control . . . . . . . . . . . . . . . . . . . . . . . . 159
Off-Road Recovery . . . . . . . . . . . . . . . . . . . . . 159
Performance . . . . . . . . . . . . . . . . . . . . . . . . . . . 206
Track Events and Competitive . . . . . . . . . . 160
Vehicle Load Limits . . . . . . . . . . . . . . . . . . . . 174
Wet Roads . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 171
Winter . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 172 Dual
Automatic Climate Control System . . . . 150
Clutch Transmission . . . . . . . . . . . . . . . . . . . . 184
Clutch Transmission Fluid . . . . . . . . . . . . . . 253
Clutch Transmission Fluid Life
System . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 253
Dual Clutch Transmission
Manual Mode . . . . . . . . . . . . . . . . . . . . . . . . . 187
E
ElectricBrake Boost . . . . . . . . . . . . . . . . . . . . . . . . . . . . 192
Parking Brake . . . . . . . . . . . . . . . . . . . . . . . . . . 192
Parking Brake Light . . . . . . . . . . . . . . . . . . . . . 92
Electrical Equipment, Add-On . . . . . . . . . . . . . . . . . . . . 230
System Overload . . . . . . . . . . . . . . . . . . . . . . 272
Electrical System Fuses and Circuit Breakers . . . . . . . . . . . . . 273
Instrument Panel Fuse Block . . . . . . . . . . . 273
Rear Compartment Fuse Block . . . . . . . . . 276
Electronic Stability Control (ESC) Off Light . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 95
Emergency OnStar . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 342 Engine
Air Cleaner/Filter . . . . . . . . . . . . . . . . . . . . . . 255
Air Filter Life System . . . . . . . . . . . . . . . . . . 254
Check Light (Malfunction Indicator) . . . . . 90
Compartment Overview . . . . . . . . . . . . . . . . 238
Coolant Temperature Gauge . . . . . . . . . . . . 87
Coolant Temperature Warning Light . . . . 96
Cooling System . . . . . . . . . . . . . . . . . . . 257, 260
Drive Belt Routing . . . . . . . . . . . . . . . . . . . . . 328
Exhaust . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 183
Oil Life System . . . . . . . . . . . . . . . . . . . . . . . . 252
Oil Pressure Light . . . . . . . . . . . . . . . . . . . . . . . 97
Overheating . . . . . . . . . . . . . . . . . . . . . . . . . . . 261
Power Messages . . . . . . . . . . . . . . . . . . . . . . . 106
Running While Parked . . . . . . . . . . . . . . . . . 184
Starting . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 179
Engine Compartment Lamp . . . . . . . . . . . . . . . 114
Entry Lighting . . . . . . . . . . . . . . . . . . . . . . . . . . . . 114
Event Data Recorders . . . . . . . . . . . . . . . . . . . . 339
Exit Lighting . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 114
Extended Parking . . . . . . . . . . . . . . . . . . . . . . . . .183
Extender, Seat Belt . . . . . . . . . . . . . . . . . . . . . . . .52
Exterior Lamp Controls . . . . . . . . . . . . . . . . . . . . . . . . . 109
Lamps Off Reminder . . . . . . . . . . . . . . . . . . . 110
Lighting Battery Saver . . . . . . . . . . . . . . . . . . 115

Chevrolet Corvette Owner Manual (GMNA-Localizing-U.S./Canada/Mexico-
17272984) - 2024 - CRC - 2/20/23
354 Index
Heated (cont'd)Ventilated Front Seats . . . . . . . . . . . . . . . . . . 44
Heating . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 150
High Voltage Battery Gauge . . . . . . . . . . . . . . 86
High-Beam On Light . . . . . . . . . . . . . . . . . . . . . . 98
High-Speed Operation . . . . . . . . . . . . . . . . . . . 287
Hill Rollback Control . . . . . . . . . . . . . . . . . . . . . . . 196
Hill and Mountain Roads . . . . . . . . . . . . . . . . . 171
Hill Start Assist (HSA) . . . . . . . . . . . . . . . . . . . . 194
Hood . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 17
Horn . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .75
How to Wear Seat Belts Properly . . . . . . . . . 46
HVAC . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 150
Hybrid Battery Charging Light . . . . . . . . . . . . . . . . . . . . . . . . . . 87
I
Ignition Positions . . . . . . . . . . . . . . . . . . . . . . . . .178
Immobilizer . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .23
IndicatorAuto Stop . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 98
Pedestrian Ahead . . . . . . . . . . . . . . . . . . . . . . . 94
Traffic Sign . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 98
Vehicle Ahead . . . . . . . . . . . . . . . . . . . . . . . . . . 94
Indicators
Warning Lights and Gauges . . . . . . . . . . . . . 80
Infants and Young Children, Restraints . . . . 63 Information
Publication Ordering . . . . . . . . . . . . . . . . . . . 337
Infotainment Using the System . . . . . . . . . . . . . . . . . . . . . . 120
Infotainment System . . . . . . . . . . . . . . . . . . . . 340
Inspection Multi-Point Vehicle . . . . . . . . . . . . . . . . . . . . 318
Instrument Cluster . . . . . . . . . . . . . . . . . . . . . . . . .81
Instrument Panel Overview . . . . . . . . . . . . . . . . 4
Interior Rearview Mirrors . . . . . . . . . . . . . . . . . 26
Introduction . . . . . . . . . . . . . . . . . . . . . . . . . . . 2, 116
J
Jack Auxiliary . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 125
Jump Starting - North America . . . . . . . . . . . . . . . 299
K
Keys . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6
Remote . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7
Remote Operation . . . . . . . . . . . . . . . . . . . . . . . 7
L
Labeling, Tire Sidewall . . . . . . . . . . . . . . . . . . . 282
LampsCourtesy . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 113
Daytime Running (DRL) . . . . . . . . . . . . . . . . . 111
Engine Compartment . . . . . . . . . . . . . . . . . . . 114 Lamps (cont'd)
Exterior Controls . . . . . . . . . . . . . . . . . . . . . . . 109
Exterior Lamps Off Reminder . . . . . . . . . . 110
Exterior Lighting Battery Saver . . . . . . . . . 115
Flash-to-Pass . . . . . . . . . . . . . . . . . . . . . . . . . . . . 111
High/Low Beam Changer . . . . . . . . . . . . . . 110
Malfunction Indicator (Check
Engine) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 90
On Reminder . . . . . . . . . . . . . . . . . . . . . . . . . . . 99
Reading . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 113
Lane Keep Assist Light . . . . . . . . . . . . . . . . . . . . . . . 94
Lap-Shoulder Belt . . . . . . . . . . . . . . . . . . . . . . . . . 48
LATCH, Lower Anchors and Tethers for Children . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 67
LED Lighting . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 271
Leveling Control
Headlamp . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 112
Lifting the Vehicle, Tires . . . . . . . . . . . . . . . . . 232
Lighting Entry . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 114
Exit . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 114
Illumination Control . . . . . . . . . . . . . . . . . . . . 113
LED . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 271
Lights Airbag Readiness . . . . . . . . . . . . . . . . . . . . . . . 88
All-Wheel-Drive . . . . . . . . . . . . . . . . . . . . . . . . . 93