1(Defrost):This mode clears the windows of fog or
frost more quickly. Air is directed to the windshield,
with a small amount directed to the side window outlets.
The indicator light comes 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 automatically turns off the recirculation and
runs the air-conditioning compressor, unless the
outside temperature is at or below freezing.
Recirculation cannot be selected while in the defrost
mode. Pressing
1again 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.
^(Air Conditioning Off):Press to turn the air
conditioning compressor off. Press AUTO to return to
automatic operation. When in AUTO, the air conditioning
compressor comes 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 the vehicle to cool down. It also helps the
system to operate more efficiently.
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
Hmode.
2. Press
?.
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 the vehicle has cooled, turn the recirculation
mode off.
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Boost Gage (ZR1 Only)
For vehicles that have this gage, it is located near the
driver side of the instrument panel cluster.
This gage indicates vacuum during light to moderate
throttle and boost under heavier throttle.
It displays the air pressure level in the intake manifold
before it enters the engine’s combustion chamber.
The gage is automatically centered at zero every time
the engine is started. Actual vacuum or boost is
displayed from this zero point. Changes in ambient
pressure, such as driving in mountains and changing
weather, will slightly change the zero reading.
Driver Information Center (DIC)
The Driver Information Center (DIC) display is located
on the instrument panel cluster and shows driver
personalization features and warning/status messages.
The DIC buttons are located on the instrument panel,
to the right of the cluster.
The DIC comes on when the ignition is turned on.
After displaying CORVETTE BY CHEVROLET, the DIC
shows the information that was last displayed before
the engine was turned off.
If a problem is detected, a warning message appears
on the DIC display. SeeDIC Warnings and Messages
on page 3-54for more information.
DIC Operation and Displays
Depending on the features on the vehicle, the drive
gear may display on the DIC. See “Manual Paddle Shift”
underAutomatic Transmission Operation on page 2-26
and “Head-Up Display (HUD)” in the index of the
Navigation system manual for more information. United States
Canada
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