Rear Window Defogger - Chevrolet 2010 Impala Owner's Manual

Using these settings together for long periods of time
may cause the air inside the vehicle to become too dry.
To prevent this from happening, after the air inside
the vehicle has cooled, turn the recirculation mode off.
The air conditioning system removes moisture from
the air, so a small amount of water may drip under
the vehicle while idling or after turning off the engine.
This is normal.
:
(Outside Air): Press to turn on outside air.
An indicator light comes on to show that it is on.
Outside air will circulate throughout the vehicle.
?
(Recirculation): Press to turn on the recirculation
mode. An indicator light comes on to show that
it is on.
This mode helps to quickly heat or cool the air inside the
vehicle once the temperature inside the vehicle is equal
to or better than the outside temperature. It can be used
to prevent outside air and odors from entering the vehicle.
The recirculation mode is not available in outside air,
floor, defog or defrost modes. If the button is selected
while in these modes, the indicator flashes three times.

Rear Window Defogger

The rear window defogger uses a warming grid to
remove fog from the rear window.
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(Rear Window Defogger): The rear window
defogger turns off automatically after it has been
activated for 10 minutes. It can be turned off manually,
by pressing the button again or by turning the ignition
to the LOCK/OFF position. The rear window defogger
can be turned on again for additional window clearing.
The length of defogger operation will increase if the
vehicle is being driven.
For vehicles with heated outside rearview mirrors, the
mirrors heat to help clear fog or frost from the surface of
the mirror when the rear window defog button is
pressed. See Outside Power Mirrors on page 3-34.
Do not drive the vehicle until all the windows are clear.
Notice: Do not use anything sharp on the inside
of the rear window. If you do, you could cut or
damage the warming grid, and the repairs would not
be covered by the vehicle warranty. Do not attach
a temporary vehicle license, tape, a decal or
anything similar to the defogger grid.
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