Rear Window Defogger; Defogging and Defrosting- Page 134

First Edition for Buick LeSabre Owner’s Manual – 1999

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Defogging and Defrosting

If you have the electronic touch system, adjust the
TEMPERATURE lever toward WARM and the FAN
lever toward HIGH.

If you have the Dual Automatic Comfortemp system,
use the FRONT button to defog or defrost the
windshield. By choosing this button, the airflow will be
directed at the windshield. Adjust your comfort level by
pressing the TEMP up or down arrow. The fan speed
will be controlled by the system. You can change the fan
speed by pressing the top of the FAN button to increase
speed, and the bottom of the button to decrease speed.

To reduce the chance of fogging your windows in cold
weather, using the electronic touch system, select HTR
to supply air through the floor outlets. Then move the
FAN lever to HIGH for a few moments before driving
away. This will blow moist air from the intake outlets
toward the floor, not the windshield. If you have the
Dual Automatic Comfortemp system, the AUTO setting
will do this for you. Manual operation of the automatic
comfortemp system in the FLOOR mode will also
supply air through the floor outlets.

Rear Window Defogger

C–43–0375–S

The lines you see on the
rear window warm the
glass. Press this button to
start warming your window.

After 10 minutes it will turn off by itself, or pressing the
button during the heating cycle will turn it off. If you
need additional warming time, push the button again.
The system will then operate for five minutes before
going off by itself.