CHEVROLET 2010 Impala - Manual (Page 168)

6 (Floor): Air is directed to the floor outlets, with
some of the air directed to the windshield and side
window outlets. In this mode, the system automatically
selects outside air.
- (Defog): This mode clears the windshield of fog
or moisture. Air is directed equally to the windshield and
the floor outlets. When defog is selected, the system
turns off recirculation and runs the air conditioning
compressor unless the outside temperature is below
40°F (4°C).
0 (Defrost): This mode clears the windshield of fog or
frost more quickly. Air is directed to the windshield with
some air to the side window vents and the floor vents.
When defrost is selected, the system automatically
forces outside air into the vehicle. The air conditioning
compressor will run automatically in this setting, unless
the outside temperature is below 40°F (4°C).
# (Air Conditioning): Press to turn the air conditioning
system on or off. An indicator light comes on to show that
it is on. The air conditioning can be selected in any mode
as long as the fan is on and the outside temperature is
above freezing. A flashing indicator light indicates that the
air conditioning compressor is currently not available.
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, do the following:
1. Select the H mode.
2. Press the # button.
3. Select the coolest temperature for both zones.
4. Select the highest 9 speed.
5. When the coolest temperature is selected in the
A/C mode, the system automatically goes into the
recirculation mode to improve cooling.
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