2001 Chevrolet Cavalier Owner's Manual - Page 141

To defog the side windows, set the right control to bi-level and the fan control to the highest setting. To defog the side windows while using the air conditioner, set the right control to bi-level, the fan control to the highest setting, and press the A/C button. For both systems, aim the side vents toward the side windows. For increased airflow to the side vents, close the center vents. The rear window defogger uses a warming grid to remove fog from the rear window. It is designed to clear the center of the rear window first. If you turn it on again, the defogger will only run for about five minutes before turning off. You can also turn it off by pressing the button again. Do not attach a temporary vehicle license across the defogger grid on the rear window. Rear Window Defogger (If Equipped) Press the button located under the air conditioning button, to turn the defogger on. It will turn itself off after 10 minutes. NOTICE: Don't use a razor blade or anything else sharp on the inside of the rear window. If you do, you could cut or damage the warming grid, and the repairs wouldn't be covered by your warranty. 3-6