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Chevrolet Impala Owner Manual (GMNA-Localizing-U.S./Canada-13688912) -
2020 - CRC - 6/5/19
Climate Controls 135
Fan Control : Turn the knob
clockwise or counterclockwise to
increase or decrease the fan speed.
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.
Y : Air is directed to the instrument
panel outlets.
\ : Air is directed to the instrument
panel outlets and the floor outlets.
[ : Air is directed to the floor
outlets.
- : Air is directed to the windshield
and floor outlets to clear the
windows of fog or moisture.
0 : Press to clear the windshield
of fog or frost more quickly. Air is
directed to the windshield and side
window outlets.
For best results, clear all snow and
ice from the windshield before
defrosting.
A/C : Press to cycle between the
off, eco, and comfort air conditioning
modes. The indicator will be lit in
comfort and eco modes and turns
off when there is no A/C function.
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 automatically 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.
For comfort a/c, press A/C. The
indicator will turn amber.
For eco a/c, press A/C again. The
indicator will turn green. This setting
balances fuel economy and air
conditioning comfort. In warm
weather conditions, Auto Stops may
occur more frequently and the
vehicle interior may be warmer as
compared to the comfort air
conditioning setting. This setting
allows higher humidity inside the
vehicle and window fogging before
the engine restarts.
L : Press to turn on
recirculation. An indicator light
comes on. Air is recirculated to
quickly cool the inside of the vehicle
or prevent outside air and odors
from entering.
Auto Defog : The climate control
system may have a sensor to
automatically detect high humidity
inside the vehicle. When high
humidity is detected, the climate
control system may adjust to
outside air supply and turn on the
air conditioner. The fan speed may
slightly increase to help prevent
fogging. If the climate control
system does not detect possible
window fogging, it returns to normal
operation. To turn Auto Defog off or
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