2002 Buick LeSabre Owner's Manual - Page 167

Defogging and Defrosting If you have the electronic touch system, press the FRONT button and 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 temperature 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 up FAN arrow to increase speed, and the down arrow 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 ducts. 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 ducts. Rear Window Defogger The lines you see on the rear window warm the glass. Press this button to start warming your rear and side windows. t At speeds above 35 mph (55 km/h), the defogger will operate continuously until you press the REAR button again. After 10 minutes of driving below 35 mph (55 km/h), the defogger will turn off automatically. If you need additional warming time, push the button again. The system will then operate for five minutes before going off by itself. 3-10