2002 Oldsmobile Aurora Owner's Manual - Page 164

Rear Window Defogger (Rear Defogger): Press this button to warm the defogger grid on the rear window. An indicator light below the button will glow while the rear window defogger is operating. At speeds above 30 mph (48 km/h), the rear defogger will stay on until you press the rear button again. At speeds below 30 mph (48 km/h), the rear defogger will turn off automatically after about 10 minutes of use. If you press it again, the defogger will operate for about five minutes only. You can also turn the defogger off by turning off the ignition. Do not attach a temporary vehicle license across the defogger grid on the rear window. If your vehicle is equipped with heated outside rearview mirrors, when you operate the rear window defogger, the mirrors are also heated to help remove ice and fog. For more information see "Heated Outside Rearview Mirrors" in the Index. NOTICE: Don't use a razor blade or other sharp object 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. Ventilation System Your vehicle's flow-through ventilation system allows filtered outside air to flow through your vehicle while it is moving, even if the system is off. The direction of the airflow can be controlled by adjusting/closing the outlets in the instrument panel. 3-8