Buick 2007 Terraza - Manual (Page 199)

Defogging and Defrosting
Fog on the inside of windows is a result of high
humidity, or moisture, condensing on the cool
window glass. This can be minimized if the
climate control system is used properly. There
are two modes to clear fog or frost from your
windshield. Use the defog mode to clear
the windows of fog or moisture and warm the
passengers. Use the defrost mode to remove
fog or frost from the windshield more quickly.
Turn the right knob to select the defog or
defrost mode.
- (Defog): This mode directs air to the
windshield and the floor outlets. When this mode
is selected, the system runs the air conditioning
compressor unless the outside temperature is
at or below freezing.
The recirculation mode cannot be selected while
in the defog mode.
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(Defrost): This mode directs most of the air
to the windshield and the side window outlets,
with some air directed to the floor outlets. In this
mode, the system will automatically run the
air conditioning compressor, unless the outside
temperature is at or below freezing.
Recirculation cannot be selected while in the
defrost mode.
Do not drive the vehicle until all the windows
are clear.
Rear Window Defogger
The rear window defogger uses a warming grid
to remove fog from the rear window.
< (Rear Window Defogger): Press this button
to turn the rear window defogger on or off. An
indicator light in the button will come on to let you
know that the rear window defogger is activated.
The rear window defogger will turn off about
10 minutes after the button is pressed. If turned
on again, the defogger will only run for about
five minutes before turning off. The defogger can
also be turned off by pressing the button again
or by turning off the engine.
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 your warranty. Do not
attach a temporary vehicle license, tape, a decal
or anything similar to the defogger grid.
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