2019 CHEVROLET CORVETTE cooling

Chevrolet Corvette Owner Manual (GMNA-Localizing-U.S./Canada/Mexico-
12032182) - 2019 - crc - 5/8/18
In Brief 17
Climate Controls
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. SYNC7. Fan Control
8. Driver and Redundant
Passenger Heated and
Ventilated Front Seat Controls
9. Rear Window Defogger
10. Recirculation
Passenger Temperature Control
The passenger temperature control
is below the passenger side
air vent.
See Dual Automatic Climate Control
System 0151.

Chevrolet Corvette Owner Manual (GMNA-Localizing-U.S./Canada/Mexico-
12032182) - 2019 - crc - 5/8/18
Climate Controls 151
Climate Controls
Climate Control Systems
Dual Automatic ClimateControl System . . . . . . . . . . . . . 151
Air Vents
Air Vents . . . . . . . . . . . . . . . . . . . . . 155
Maintenance
Passenger Compartment AirFilter . . . . . . . . . . . . . . . . . . . . . . . . 155
Service . . . . . . . . . . . . . . . . . . . . . . . 156
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-
12032182) - 2019 - crc - 5/8/18
Climate Controls 153
Changing the mode cancels the
automatic operation and the system
goes into manual mode. Press
AUTO to return to automatic
operation.
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 0128.
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.

Chevrolet Corvette Owner Manual (GMNA-Localizing-U.S./Canada/Mexico-
12032182) - 2019 - crc - 5/8/18
Driving and Operating 165
after every 24 hours of racing or
competitive driving. See
Recommended Fluids and
Lubricants0321.
General Information
If reduced performance is
experienced during track events or
competitive driving, turning off the
A/C will help to improve engine
performance.
Maintain a mixture of 40%
DEX-COOL coolant and 60% clean,
drinkable water to optimize engine
performance.
The front license plate bracket or
aero panel should be removed for
track events and competitive driving
to improve engine performance.
Brakes
{Warning
Braking above 200 mph:
(Continued)
Warning (Continued)
Applying and sustaining full force
braking at speeds exceeding
200 mph (322 km/h) can cause
serious damage to the braking
system. At any speed, braking
must be performed in a smooth
and controlled manner, but at
these speeds specifically, lower
initial brake pedal efforts are
recommended.
Brake Cooling
If additional brake cooling is
required, the grille mesh in the lower
corners of the front grille in front of
the brake duct can be removed.
This is not reversible, and a
replacement grille will not be
covered by the vehicle warranty.
If this is done, it is recommended
that the gap between the fascia and
the cooling duct be taped over. Brake Fluid
Replace existing brake fluid with a
qualified high performance brake
fluid from a sealed container. Brake
fluid with a dry boiling point >310 °C
(590 °F) is qualified. If high
performance brake fluid is used,
replace it with GM approved brake
fluid before driving on public roads.
If high performance brake fluid is in
the vehicle and the age of the brake
fluid is over a month old or
unknown, replace the brake fluid
before track events and competitive
driving. Do not use silicone or
DOT-5 brake fluids.
Brake Burnishing
New brake pads must be burnished
before racing or other competitive
driving.
Caution
Performing the brake burnish
procedure on a base brake
system can result in brake
damage.

Chevrolet Corvette Owner Manual (GMNA-Localizing-U.S./Canada/Mexico-
12032182) - 2019 - crc - 5/8/18
Driving and Operating 167
2. Use enough pedal force tocompletely stop the vehicle in
four to five seconds. If ABS
activates, braking is too hard.
3. Repeat Steps 1 and 2 –20
consecutive times, this should
take about 5 minutes.
4. After completing the 20 stops, cool the brakes by driving for
8 km (5 mi) at 100 km/h
(60 mph).
As with all high performance brake
systems, some amount of brake
squeal is normal.
Racing/Track Brake Burnishing
Procedure (Grand Sport with J57,
Z06 with J57, and ZR1)
This procedure should only be run
on a track and only on dry
pavement.
Caution
Brake pedal fade will occur during
this track burnish procedure and
can cause brake pedal travel and (Continued)
Caution (Continued)
force to increase. This could
extend stopping distance until the
brakes are fully burnished.
1. Drive a normal first lap, not too aggressively.
2. Laps 2 and 3 should be gradually driven faster and
more aggressively, while
allowing for reduced brake
output and increased stopping
distance due to brake fade.
3. Drive Lap 4 near full speed, while allowing for reduced
brake output and increased
stopping distance due to
brake fade.
4. Laps 5 and 6 should be cool down laps.
5. Lap 7 should be normal driving or an easy out lap.
Exhaust Cooling
Hardware (ZR1)
The exhaust cooling hardware
should be installed prior to any track
event. These components will help
cool the exhaust system.
To install the closeout plates and
deflectors:
1. Install the 12 U-nuts onto the
tunnel brace. Align the
threaded holes in the U-nuts
with the holes in the tunnel
brace.

Chevrolet Corvette Owner Manual (GMNA-Localizing-U.S./Canada/Mexico-
12032182) - 2019 - crc - 5/8/18
168 Driving and Operating
2. Install the two closeout platesover the holes.
Install the two deflectors over
the holes, with the shorter one
in front.
3. Torque all the fasteners to 9Y (6.6 lb ft).
When the track event is complete,
remove the closeout plates and
deflectors and store them for the
next track event.
Rear Adjustable Performance
Wing (If Equipped)
The Rear Adjustable Performance
Wing can be adjusted up for greater
downforce during a track event.
To change the angle of the rear
wing, remove the rear attaching
bolts and move them to the upper
hole. Tighten the bolts to 9 Y
(6.6 lb ft). Return the wing to the
factory location following the track
event. Every time the wing is
adjusted, re-apply threadlocker to
the attachment bolts. See
Recommended Fluids and
Lubricants 0321.
Front Compartment Air
Deflector Panel
Prior to the track event, when
ambient temperatures are above 27
°C (80 °F), the panel between the
front fascia extension and the front
cradle can be removed to maximize
cooling air flow to the steering gear
power assist motor.
To remove the air deflector:
1. Remove the four front (2) and
three rear (4) front
compartment air deflector
screws.

Chevrolet Corvette Owner Manual (GMNA-Localizing-U.S./Canada/Mexico-
12032182) - 2019 - crc - 5/8/18
Driving and Operating 169
2. Remove the forwardpush pin (1).
3. Remove the front compartment air deflector (3) by tipping the
rear down and sliding it out
from under the lower deflector
panel.
When the track events are
complete, reinstall this panel.
Z07 Performance Package
Z06 with the Z07 Performance
Package has installed Stage 2 and
Stage 3 Aero Packages, which
consist of a front splitter with short
end caps, rocker panel extensions,
and a rear spoiler.
Stage 3 Aero components are
delivered but not installed on the
vehicle. These are intended to be
installed for track use only. The
components include:
. Front splitter tall end caps that
replace the front splitter short
end caps
. A center transparent wicker bill
for the rear spoiler
{Warning
Changing the following track
settings could reduce tire traction
and could cause a crash. Do not
change the track settings.
The track settings for the Z07
Performance Package with the
Stage 3 Aero Package are:
. The front splitter tall end caps
installed
. The center transparent wicker
bill installed all the way up on
the rear spoiler
. The Driver Mode Selector in
Track Mode
Stingray with Performance
Package-Carbon Fiber (CFZ)
The Stingray with Performance
Package-Carbon Fiber (CFZ) has
an installed aero package which
consists of a front splitter with short
end caps, rocker panel extensions,
and a rear spoiler. A center
transparent wicker bill for the rear spoiler is delivered but not installed.
This is intended to be installed for
track use only.
Front Brake Cooling Duct Kit
(Z06 and ZR1)
The following installation procedure
is for Z06/ZR1 vehicles. The upper
cooling ducts should be installed
prior to any track events or high
speed straight runs.
To install the cooling ducts:
1. Remove the front wheels. Refer to the procedure in the
vehicle service manual.

Chevrolet Corvette Owner Manual (GMNA-Localizing-U.S./Canada/Mexico-
12032182) - 2019 - crc - 5/8/18
170 Driving and Operating
2. Position the u-nut on theupper duct.
3. Position the upper duct andsnap it into the tabs on the
airbox assembly. Position the
upper duct through the bottom
of the vehicle to bring it close
to the tab position.
4. Align the lower control arm
deflector hole to the upper duct
hole. Install the screw and
torque it to 4 Y(35 lb inch).
5. Repeat the procedure for the opposite side of the vehicle.
6. Install the front wheels. Refer to the procedure in the vehicle
service manual.
Prepare the vehicle for street use by
removing the upper cooling ducts
installed prior to the track event.
Wheel Blocker
The following installation procedure
is for Z06 vehicles with the J56
brake package and should be
installed prior to any track events.
The wheel blocker helps improve
the cooling of the brake rotor.
Caution
The wheel blocker is for track use
only. After a track event, remove
the wheel blocker and reinstall
the original splash shield. Failure
to reinstall the original parts may
lead to damage to the wheel
blocker, noise, premature brake
pad and rotor wear, and high
speed wet braking.