2007 CHEVROLET CORVETTE air conditioning

Pressing the arrows will delete AUTO from the
digital display. The fan graphics with the fan speed
bars will be shown. To increase the fan speed
so that more air ows into the vehicle, press the
up arrow on the fan switch. To decrease the
fan speed and airow, press the down arrow.
The AUTO button must be pressed to return to the
automatic fan control.
If the airow seems low when the fan speed is at
the highest setting, the passenger compartment
air lter may need to be replaced. For more
information, seePassenger Compartment Air Filter
on page 186andScheduled Maintenance on
page 433.
?(Recirculation):Press this button to turn the
recirculation mode on or off. When the climate
control system is in recirculation mode an indicator
light will come on. This mode prevents outside
air from entering your vehicle. It can be used
to prevent outside air and odors from entering
your vehicle and to help cool the air inside your
vehicle more quickly. Recirculation mode is
not available in defrost or defog mode.
^(Air Conditioning Off):Press this button
to turn the air conditioning compressor off.
Press AUTO to return to automatic operation.
When in AUTO, the air conditioning compressor
will come on automatically, as needed.
Air conditioning does not operate at temperatures
below about 35°F to 40°F (2°C to 4°C).
In temperatures above 40°F (4°C), the air
conditioning cannot be turned off in defrost and
defog, as it helps to remove moisture from the
vehicle. It also helps to keep the windows clear.
You may notice a slight change in engine
performance when the air-conditioning compressor
shuts off and turns on again. This is normal.
The system is designed to make adjustments to
help with fuel economy while still maintaining
the selected temperature.
On hot days, open the windows to let hot inside
air escape; then close them. This helps to reduce
the time it takes for your vehicle to cool down.
It also helps the system to operate more efficiently.
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For quick cool down on hot days press the AUTO
button and adjust the temperature to a cool,
comfortable setting. To achieve maximum cool
down, do the following:
1. Select the vent mode.
2. Select recirculation mode.
3. Select the A/C on.
4. Select the coolest temperature.
5. Select the highest fan speed.
Using these settings together for long periods
of time may cause the air inside of your vehicle to
become too dry. To prevent this from happening,
after the air in your vehicle has cooled, turn
the recirculation mode off.
The air conditioning system removes moisture
from the air, so you may sometimes notice a
small amount of water dripping underneath
your vehicle while idling or after turning off the
engine. This is normal.Sensors
The solar sensor on your vehicle monitors the
solar radiation and uses the information to
maintain the selected temperature when operating
in AUTO mode by initiating needed adjustments
to the temperature, the fan speed and the air
delivery system. The system may also supply
cooler air to the side of the vehicle facing the sun.
The recirculation mode will also be activated,
as necessary. Do not cover the solar sensor
located on the top of the instrument panel near
the windshield or the system will not work properly.
There is also a sensor located 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.
If the outside temperature goes up, the displayed
temperature will not change until:
The vehicle’s speed is above
12 mph (19 km/h) for ve minutes.
The vehicle’s speed is above
32 mph (52 km/h) for two and a half minutes.
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These delays prevent false readings. If the
temperature goes down, the outside temperature
will be shown when you start the vehicle. If it
has been turned off for less than three hours, the
temperature will be recalled from the previous
vehicle operation.
There is also an inside temperature sensor
located to the left of the ignition switch. The
automatic climate control system uses this sensor
to receive information, so if you block or cover
it, the system will not function properly.
Defogging and Defrosting
Fog on the inside of windows is a result of high
humidity and moisture condensing on the cool
window glass. This can be minimized if the climate
control system is used properly. There are two
modes to clear fog or frost from your windshield.
Use the oor/defog mode to clear the windows of
fog or moisture and warm the passengers. Use
defrost to remove fog or frost from the windshield
more quickly. To prevent fogging on the inside of
the windows in modes other than oor/defog and
defrost, make sure the air conditioning compressor
is on and recirculation mode is off.
Press the mode button until the defog mode
appears on the display.
-(Floor/Defog):This mode directs the air
equally between the windshield and the oor
outlets with a small amount to the side window
outlets. When you select this mode, the system
turns off recirculation and runs the air-conditioning
compressor unless the outside temperature is
at or below freezing. The recirculation mode
cannot be selected while in the defog mode.
1(Defrost):Pressing this button directs most
of the air to the windshield, with a small amount
directed to the side window outlets. The light on the
button will come on and the digital display will show
the defrost mode symbol and fan speed when the
front defrost mode is being used. In this mode, the
system will automatically turn off the recirculation
and run the air-conditioning compressor, unless
the outside temperature is at or below freezing.
Recirculation cannot be selected while in the
defrost mode. Pressing this button again will return
the system to the last operating mode.
For severe ice conditions, turn the driver’s
temperature knob to 90°F (32°C) while in
defrost mode.
Do not drive the vehicle until all the windows
are clear.
184

Have the tire pressures checked and set to those
shown on the Tire Loading Information label. See
Extended Mobility Tires on page 384,Loading Your
Vehicle on page 309,Ination - Tire Pressure on
page 386, andTire Pressure Monitor System on
page 389.
To acknowledge the message, press the RESET
button. A message reappears every 10 minutes
until the condition is corrected.
The DIC display also shows the tire pressure
values for the front and rear tires by pressing the
gages button. SeeDIC Controls and Displays
on page 208.
HOT ENGINE AIR CONDITIONING OFF
This message displays when the engine coolant
becomes hotter than the normal operating
temperature. To avoid added strain on a hot engine,
the air conditioning compressor is automatically
turned off. When the coolant temperature returns to
normal, the A/C operation automatically resumes.
You can continue to drive your vehicle. If this
message continues to appear, have the system
repaired by your dealer as soon as possible to
avoid compressor damage.
ICE POSSIBLE
This message displays when the outside air
temperature is cold enough to create icy road
conditions. Adjust your driving accordingly.
LOW FUEL
This message displays when the fuel tank is less
than 10 percent full and the display is turned
off. A multiple chime also sounds when this
message is displayed. Rell the fuel tank as soon
as possible. SeeFuel Gage on page 206.
LOW OIL PRESSURE
This message displays if low oil pressure levels
occur. If this message appears while the engine is
running, stop the engine and do not operate it
until the cause of low oil pressure is corrected.
Severe damage to the engine can result. A
multiple chime sounds when this message is
displayed. SeeEngine Oil on page 333.
220

SERVICE AIR CONDITIONING
This message displays when the electronic sensors
that control the air conditioning and heating
systems are no longer working. Have the climate
control system serviced by your dealer if you notice
a drop in heating and air conditioning efficiency.
SERVICE ANTILOCK BRAKES
If this message displays while you are driving, stop
as soon as possible and turn the ignition off. Then
start the engine again to reset the system. If the
message stays on, or comes back on again while
you are driving, your vehicle is in need of service.
See your dealer. If the anti-lock brake system (ABS)
warning light is on and the regular brake system
warning light is not on, you still have brakes, but do
not have ABS. If the regular brake system warning
light is also on, you do not have ABS and there is a
problem with the brakes. SeeAnti-Lock Brake
System Warning Light on page 197andBrake
System Warning Light on page 196.
If this message is displayed, the Traction Control
System (TCS) and the Active Handling System
will also be disabled. The DIC will scroll three
messages: SERVICE ANTILOCK BRAKES,
SERVICE TRACTION SYSTEM, and SERVICEACTIVE HANDLING, and the instrument panel
cluster lights will come on along with a chime.
When the service message is displayed, the
computer controlled systems will not assist the
driver. Have the system repaired by your dealer as
soon as possible. Adjust your driving accordingly.
To acknowledge these messages, press the
RESET button.SERVICE CHARGING SYSTEM
If this message displays while you are driving,
there may be a problem with the electrical charging
system. It could mean that there is a loose or
broken drive belt or that there is another electrical
problem. Have your vehicle checked right away
by your dealer. Driving while this message is
on could drain the battery.
If you must drive a short distance with the
message on, be certain to turn off the vehicle’s
accessories, such as the radio and air conditioner.
Multiple chimes sound when this message is
displayed.
To acknowledge the message, press the RESET
button. The message reappears every 10 minutes
until this condition changes.
225

Tire Terminology and Denitions
Air Pressure:The amount of air inside the tire
pressing outward on each square inch of the
tire. Air pressure is expressed in pounds
per square inch (psi) or kilopascal (kPa).
Accessory Weight:This means the combined
weight of optional accessories. Some examples of
optional accessories are, automatic transmission,
power steering, power brakes, power windows,
power seats, and air conditioning.
Aspect Ratio:The relationship of a tire’s height
to its width.
Belt:A rubber coated layer of cords that is
located between the plies and the tread.
Cords may be made from steel or other
reinforcing materials.
Bead:The tire bead contains steel wires wrapped
by steel cords that hold the tire onto the rim.
Bias Ply Tire:A pneumatic tire in which the plies
are laid at alternate angles less than 90 degrees
to the centerline of the tread.Cold Tire Pressure:The amount of air pressure
in a tire, measured in pounds per square inch (psi)
or kilopascals (kPa) before a tire has built up
heat from driving. SeeInation - Tire Pressure
on page 386.
Curb Weight:This means the weight of a motor
vehicle with standard and optional equipment
including the maximum capacity of fuel, oil, and
coolant, but without passengers and cargo.
DOT Markings:A code molded into the sidewall
of a tire signifying that the tire is in compliance
with the U.S. Department of Transportation (DOT)
motor vehicle safety standards. The DOT code
includes the Tire Identication Number (TIN),
an alphanumeric designator which can also identify
the tire manufacturer, production plant, brand,
and date of production.
GVWR:Gross Vehicle Weight Rating.
SeeLoading Your Vehicle on page 309.
GAWR FRT:Gross Axle Weight Rating for the
front axle. SeeLoading Your Vehicle on page 309.
GAWR RR:Gross Axle Weight Rating for the
rear axle. SeeLoading Your Vehicle on page 309.
382

Fuses Usage
SPARE Spare Fuse
SPARE Spare Fuse
SPARE Spare Fuse
SPARE Spare Fuse
TPA Tonneau Pulldown Actuator
ONSTAR OnStar
®
DRIV DR
SWTCHDriver Door Switch
TELE SWTCH/
MSMTelescope Switch,
Memory Seat Module
IGN SWTCH/
INTR SNSRIgnition Switch, Intrusion Sensor
BCK/UP LAMP Reverse Lamps
REVERSE
LAMPSReverse Lamps
Blank Not Used
STOP LAMP Stop Lamp
BTSI SOL/
STR WHL LCKBrake Transmission Shift Interlock,
Steering Wheel Column Lock
BLANK Not Used
Fuses Usage
RDO/S-BAND/
VICSRadio, S-Band, VICS
REAR FOG/
ALDL/TOP
SWTCHRear Fog Lamp, Assembly Line
Diagnostic Link Connector,
Convertible Top Switch
GM LAN
RUN/CRNKGM LAN Devices
ISRVM/ HVACElectric Inside Rearview Mirror,
Heating Ventilation, Air Conditioning
CRUISE
SWTCHCruise Control Switch
TONNEAU
RELSETonneau Release
RUN CRNK Run/Crank Relay
HTD SEAT/
WPR RLYHeated Seat, Wiper Relays
ECM Engine Control Module
SDM/AOS
SWTCH
AIRBAGSensing and Diagnostic Module,
Automatic Occupant Sensing
Module, Airbag
CLSTR/HUD Cluster, Heads-Up Display
HVAC/
PWR SNDHeating, Ventilation/Air Conditioning,
Power Sounder
421

Fuse Usage
5 Stoplamps/Back-Up Lamps
6 02 Sensor
7 Battery Main 5
8 Park Lamps
9Powertrain Relay Input/
Electronic Throttle Control
10 Manual Transmission Solenoids
11Engine Control Module/
Transmission Control Module/
Easy Key Module
12 Odd Numbered Fuel Injectors
13Electronic Suspension Control
(Option)
14Canister Purge Solenoid,
Mass Air Flow Sensor
15 Air Conditioner Compressor
16 Even Numbered Fuel Injectors
17 Windshield Washer
18 Headlamp Washer
19Passenger Side Low-Beam
HeadlampFuse Usage
20 Fuel Pump
21 Driver Side Low-Beam Headlamp
22 Front Fog Lamp
23Passenger Side High-Beam
Headlamp
24 Driver Side High-Beam Headlamp
J-Style Fuses Usage
25 Cooling Fan
26 Battery Main 3
27 Anti-lock Brake System
28Heating/Ventilation/
Air Conditioning Blower
29 Battery Main 2
30 Starter
31 Audio Amplier
32 Blank
33 Battery Main 1
424