2000 Oldsmobile Alero Owner's Manual - Page 139
2000 Oldsmobile Alero Manual
Page 139 highlights
To defog the side windows while using air conditioning, use BI-LEVEL and adjust the fan to the highest speed and press the A/C button so that the indicator light is glowing. For added airflow to the side windows aim the side vents toward the windows and close the center vents. Rear Window Defogger The rear window defogger uses a warming grid to remove fog from the rear window. Press the defogger button. The indicator light will glow. The rear window defogger will turn itself off after about 10 minutes after the first time the button is pressed, and after five minutes each additional time the button is pressed. You can turn the defogger off by pressing the button again or turning off the ignition. Do not attach a temporary vehicle license across the defogger grid on the rear window. 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. 3-5