Chevrolet Impala 2012 Owner's Manual page 182

8-4 Climate Controls
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.
1
(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 Power Mirrors on page 2 14.
Do not drive the vehicle until all the
windows are clear.
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.
I n f o r ma t i o n P r o v i d e d b y :
Air Vents
Use the thumbwheel located below
or to the side of the outlet, to
change the direction of the air flow.
Operation Tips
Clear away any ice, snow,
or leaves from the air inlets at
the base of the windshield that
may block the flow of air into the
vehicle.
Use of non-GM approved hood
deflectors may adversely affect
the performance of the system.
Keep the path under the front
seats clear of objects to help
circulate the air inside the
vehicle more effectively.