2018 CHEVROLET CORVETTE C7 air condition

Chevrolet Corvette Owner Manual (GMNA-Localizing-U.S./Canada/Mexico-
11374030) - 2018 - crc - 3/29/17
Climate Controls 147
Climate Controls
Climate Control Systems
Dual Automatic ClimateControl System . . . . . . . . . . . . . 147
Air Vents
Air Vents . . . . . . . . . . . . . . . . . . . . . 151
Maintenance
Passenger Compartment AirFilter . . . . . . . . . . . . . . . . . . . . . . . . 151
Service . . . . . . . . . . . . . . . . . . . . . . . 152
Climate Control Systems
Dual Automatic Climate Control System
The heating, cooling, and ventilation for the vehicle can be controlled with
this system.
1. Driver Temperature Control
2. AUTO (Automatic Operation)
3. A/C (Air Conditioning)
4. Air Delivery Modes
5. Defrost
6. SYNC 7. Fan Control
8. Driver and Redundant
Passenger Heated and
Ventilated Front Seat Controls
9. Rear Window Defogger
10. Recirculation

Chevrolet Corvette Owner Manual (GMNA-Localizing-U.S./Canada/Mexico-
11374030) - 2018 - crc - 3/29/17
148 Climate Controls
Passenger Temperature Control
The passenger temperature control
is below the passenger side
air vent.
On/Off System Operation
Press AUTO to turn the system on.
Turn the fan control knob completely
counterclockwise to turn the fan off.
Automatic Operation
The system automatically controls
the fan speed, air delivery, air
conditioning, and recirculation in
order to heat or cool the vehicle to
the desired temperature. When AUTO is lit, all four functions
operate automatically. Each function
can also be manually set and the
setting is displayed. The AUTO
indicator will turn off. Functions not
manually set will continue to be
automatically controlled, even if the
AUTO indicator is not lit.
For automatic operation:
1. Press AUTO.
2. Set the temperature. Allow the system time to stabilize. Then
adjust the temperature as
needed for best comfort.
The system operates to reach the
set temperature as quickly as
possible. The AUTO control system
works best with the windows up and
the removable roof panel installed
or the convertible top up.
Manual Operation
Driver and Passenger
Temperature Control : The
temperature can be adjusted
separately for the driver and
passenger. Turn the knob clockwise or
counterclockwise to increase or
decrease the driver temperature
setting. Press
worxto increase
or decrease the passenger
temperature setting.
SYNC : Press to link all climate
zone settings to the driver settings.
The SYNC indicator light will turn
on. When the passenger
temperature setting is adjusted, the
SYNC indicator light turns off.
Fan Control : Turn the knob
clockwise or counterclockwise to
increase or decrease the fan speed.
Turn the knob completely
counterclockwise to turn the fan off.
Press AUTO to return to automatic
operation.
Air Delivery Modes : Press
Y,\,
[, or-to change the direction of
the airflow. An indicator light comes
on in the selected mode button.
Changing the mode cancels the
automatic operation and the system
goes into manual mode. Press
AUTO to return to automatic
operation.

Chevrolet Corvette Owner Manual (GMNA-Localizing-U.S./Canada/Mexico-
11374030) - 2018 - crc - 3/29/17
Climate Controls 149
Y:Air is directed to the instrument
panel outlets.
[: Air is directed to the floor
outlets.
\: Air is directed to the instrument
panel outlets and the floor outlets.
-: Air is directed to the windshield
and floor outlets to clear the
windows of fog or moisture. The
recirculation mode cannot be
selected while in the defog mode.
0: Press to clear the windshield
of fog or frost more quickly. Air is
directed to the windshield and side
window outlets. The recirculation
mode cannot be selected while in
defrost mode.
For best results, clear all snow and
ice from the windshield before
defrosting.
Do not drive the vehicle until all the
windows are clear.
A/C : Press to turn the air
conditioning on or off. If the fan is
turned off, the air conditioner will not
run and the indicator light may
turn off. Press AUTO to return to automatic
operation and the air conditioner
runs as needed. When the indicator
light is on, the air conditioner runs
automatically to cool the air inside
the vehicle or to dry the air as
needed to defog the windshield
faster.
Depending on the engine speed, the
air conditioning compressor may
shut off and turn on again and a
slight change in A/C cooling and
engine performance may be
noticed. This is normal. The system
is designed to make adjustments to
help with fuel economy while still
maintaining the selected
temperature.
If the A/C is turned off, automatic
operation is canceled.
/:
Press to turn on
recirculation. An indicator light
comes on. Air is recirculated to
quickly cool the inside of the vehicle
or reduce the entry of outside air
and odors. Recirculation mode is
not available in defrost or
defog mode.
Rear Window Defogger
=: Press to turn the rear window
defogger on or off. An indicator light
on the button comes on to show that
the rear window defogger is on.
The defogger only works when the
ignition is on. The defogger turns off
if the ignition is off or in ACC/
ACCESSORY.
The rear window defogger can be
set to automatic operation. See
“Climate and Air Quality” under
Vehicle Personalization 0124.
When auto rear defog is selected,
the rear window defogger turns on
automatically when the interior
temperature is cold and the outside
temperature is about 4 °C (40 °F)
and below. The auto rear defogger
turns off automatically after about
10 minutes.
The heated outside mirrors turn on
with the rear window defogger and
help to clear fog or frost from the
surface of the mirror. See Heated
Mirrors 043.

Chevrolet Corvette Owner Manual (GMNA-Localizing-U.S./Canada/Mexico-
11374030) - 2018 - crc - 3/29/17
150 Climate Controls
If equipped with a power convertible
top, the rear window defogger and
heated mirrors are automatically
disabled when the power convertible
top is moving or down.
Caution
Using a razor blade or sharp
object on the inside rear window
can damage the antenna or
defogger. Repairs would not be
covered by the vehicle warranty.
Do not stick anything to the rear
window.
z/{:If equipped, press to heat
or ventilate the seat. See Heated
and Ventilated Front Seats 062.
Remote Start Climate Control
Operation (If Equipped) : If remote
start is used to start the vehicle, the
climate control system will come on.
The system uses the driver ’s
previous settings to heat or cool the
inside of the vehicle. The rear
window defogger or heated outside
mirrors, if equipped, may come on
based on cold ambient conditions. The rear defog indicator light may
not come on during a remote start.
The heated or ventilated seats may
turn on if it is cold or hot outside.
See
Remote Vehicle Start 033 and
Heated and Ventilated Front Seats
0 62, if equipped.
Sensors
The interior cabin air temperature
and solar sensor on top of the
instrument panel near the
windshield monitors the solar heat
and measures the initial interior
cabin temperature.
The climate control system uses the
sensor information to adjust the
temperature, fan speed,
recirculation, and air delivery mode
for best comfort.
The humidity and windshield
temperature sensor is on the
windshield glass inside surface near
the rearview mirror. The automatic
climate control system uses this
sensor to receive information to
determine the need for defogging. If any of these sensors are blocked
or covered, the automatic climate
control system may not work
properly.
There is also a sensor behind the
front bumper. This sensor reads the
outside air temperature and helps to
maintain the temperature inside the
vehicle. Any cover on the front of
the vehicle could give a false
reading in the temperature.

Chevrolet Corvette Owner Manual (GMNA-Localizing-U.S./Canada/Mexico-
11374030) - 2018 - crc - 3/29/17
152 Climate Controls
3. Remove the filter and installthe new air filter.
4. Replace the filter cover.
5. Attach the retainer clips.
Service
All vehicles have a label underhood
that identifies the refrigerant used in
the vehicle. The refrigerant system
should only be serviced by trained
and certified technicians. The air
conditioning evaporator should
never be repaired or replaced by
one from a salvage vehicle. It should only be replaced by a new
evaporator to ensure proper and
safe operation.
During service, all refrigerants
should be reclaimed with proper
equipment. Venting refrigerants
directly to the atmosphere is harmful
to the environment and may also
create unsafe conditions based on
inhalation, combustion, frostbite,
or other health-based concerns.

Chevrolet Corvette Owner Manual (GMNA-Localizing-U.S./Canada/Mexico-
11374030) - 2018 - crc - 4/4/17
Driving and Operating 169
clear roads in shaded areas.
The surface of a curve or an
overpass can remain icy when
the surrounding roads are clear.
Avoid sudden steering
maneuvers and braking while
on ice.
. Turn off cruise control.
Blizzard Conditions
Stop the vehicle in a safe place and
signal for help. Stay with the vehicle
unless there is help nearby.
If possible, use Roadside
Assistance. See Roadside
Assistance Program 0320. To get
help and keep everyone in the
vehicle safe:
. Turn on the hazard warning
flashers.
. Tie a red cloth to an outside
mirror.
{Warning
Snow can trap engine exhaust
under the vehicle. This may
cause exhaust gases to get
inside. Engine exhaust contains
carbon monoxide (CO), which
cannot be seen or smelled. It can
cause unconsciousness and even
death.
If the vehicle is stuck in snow:
. Clear snow from the base of
the vehicle, especially any
blocking the exhaust pipe.
. Open a window about 5 cm
(2 in) on the vehicle side
that is away from the wind,
to bring in fresh air.
. Fully open the air outlets on
or under the instrument
panel.
. Adjust the climate control
system to circulate the air
inside the vehicle and set
(Continued)
Warning (Continued)
the fan speed to the highest
setting. See“Climate
Control Systems.”
For more information about CO,
see Engine Exhaust 0181.
To save fuel, run the engine for
short periods to warm the vehicle
and then shut the engine off and
partially close the window. Moving
about to keep warm also helps.
If it takes time for help to arrive,
when running the engine, push the
accelerator pedal slightly so the
engine runs faster than the idle
speed. This keeps the battery
charged to restart the vehicle and to
signal for help with the headlamps.
Do this as little as possible, to
save fuel.

Chevrolet Corvette Owner Manual (GMNA-Localizing-U.S./Canada/Mexico-
11374030) - 2018 - crc - 4/4/17
Driving and Operating 183
{Warning
Shifting into a drive gear while the
engine is running at high speed is
dangerous. Unless your foot is
firmly on the brake pedal, the
vehicle could move very rapidly.
You could lose control and hit
people or objects. Do not shift
into a drive gear while the engine
is running at high speed.
Caution
Shifting out of P (Park) or
N (Neutral) with the engine
running at high speed may
damage the transmission. The
repairs would not be covered by
the vehicle warranty. Be sure the
engine is not running at high
speed when shifting the vehicle.
D : This position is for normal
driving. If more power is needed for
passing, press the accelerator
pedal down. Downshifting the transmission in
slippery road conditions could result
in skidding. See
“Skidding”under
Loss of Control 0156.
The transmission can be shifted like
a manual transmission using the
paddle shift controls while in
D (Drive). See Manual Mode0183.
Caution
A transmission hot message may
display if the automatic
transmission fluid is too hot.
Driving under this condition can
damage the vehicle. Stop and idle
the engine to cool the automatic
transmission fluid. This message
clears when the transmission fluid
has cooled sufficiently.
M : In M (Manual Mode), the
transmission can be shifted like a
manual transmission using the
paddle shift controls. See Manual
Mode 0183.
Manual Mode
Manual Paddle Shift
(Automatic Transmision)
When the shift lever is moved to
M (Manual Mode), the transmission
enters Manual Mode. The
transmission will hold the current
gear until a change is requested.
The paddles on the steering wheel
can be used to manually upshift or
downshift the transmission. The
right (+) plus paddle upshifts, and
the left (−) minus paddle downshifts.

Chevrolet Corvette Owner Manual (GMNA-Localizing-U.S./Canada/Mexico-
11374030) - 2018 - crc - 4/4/17
206 Driving and Operating
Fuel
GM recommends the use of TOP
TIER Detergent Gasoline to keep
the engine cleaner and reduce
engine deposits. See
www.toptiergas.com for a list of TOP
TIER Detergent Gasoline marketers
and applicable countries.
Do not use any fuel labeled E85 or
FlexFuel. Do not use gasoline with
ethanol levels greater than 15% by
volume.
For the LT1 6.2L engine, premium
unleaded gasoline meeting ASTM
specification D4814 with a posted
octane rating of 93 is highlyrecommended for best performance
and fuel economy. Unleaded
gasoline with an octane rated as low
as 87 can be used. Using unleaded
gasoline rated below 93 octane,
however, will lead to reduced
acceleration and fuel economy.
If knocking occurs, use a gasoline
rated at 93 octane as soon as
possible, otherwise, the engine
could be damaged. If heavy
knocking is heard when using
gasoline with a 93 octane rating, the
engine needs service.
For the LT4 6.2L supercharged
engine, use premium unleaded
gasoline meeting ASTM
specification D4814 with a posted
octane rating of 93. If unavailable,
unleaded gasoline with a posted
octane rating of 91 may be used,
but with reduced performance and
fuel economy. If the octane is less
than 91, the engine could be
damaged and the repairs would not
be covered by the vehicle warranty.
If heavy knocking is heard when
using gasoline rated at 93 octane,
the engine needs service.
Prohibited Fuels
Caution
Do not use fuels with any of the
following conditions; doing so
may damage the vehicle and void
its warranty:
. For vehicles which are not
FlexFuel, fuel labeled
greater than 15% ethanol by
volume, such as mid-level
ethanol blends (16 –50%
ethanol), E85, or FlexFuel.
. Fuel with any amount of
methanol, methylal, and
aniline. These fuels can
corrode metal fuel system
parts or damage plastic and
rubber parts.
. Fuel containing metals such
as methylcyclopentadienyl
manganese tricarbonyl
(MMT), which can damage
the emissions control
system and spark plugs.
(Continued)