Rear Window Defogger - Buick CENTURY 1999 Owner's Manual

RECIRC: This setting recirculates much of the air
inside your vehicle. This setting is not permitted in
FRONT defrost mode and is only permitted in
WINDSHIELD/FLOOR mode if the compressor is
turned on. The indicator light will be lit when
recirculation is engaged, but will light for one second
and then turn off if selected when not permitted.
Heating (Engine Coolant Heater)
If your vehicle has an engine coolant heater, you can use
it to help your system provide warm air faster when it's
0 _ F ( 18 _ C) or lower. An engine
-- -
cold outside
coolant heater warms the coolant your engine and
heating system use to provide heat. See "Engine Coolant
Heater" in the Index.
Defogging and Defrosting
Your system has two settings for clearing the front and
side windows. To defrost the windows quickly, press the
FRONT button; set the temperature to 90 _ F (32 _ C),
select high fan speed and turn the DUAL button off. To
warm passengers while keeping the windows clear, push
the AIR FLOW button until WINDSHIELD/FLOOR
appears in the display. Select fan speed for comfort and
windshield clearing performance.

Rear Window Defogger

The rear window defogger uses a warming grid to
remove fog from the rear window. Press the button to
turn the rear defogger on. It will turn itself off after
about 10 minutes. If you turn it on again, the rear
defogger will only run for about five minutes before
turning off. You can also turn it off by pressing the
button again. The picture above on the left refers to the
defogger button that is found on a Manual Single Zone
Climate Control system or Dual ComforTemp Climate
Control system; the button on the right is found on the
Dual Automatic ComforTemp Climate Control system.
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