2002 Oldsmobile Silhouette Owner's Manual - Page 210

Rear Window Defogger Press the REAR button to warm the defogger grid on the rear window and to turn on the heated outside rearview mirrors. NOTICE: Don't use a razor blade or something 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. Rear Climate Control (Vehicles without the Entertainment System) (Option) The system will turn off automatically after about 10 minutes of use. If you turn it on again, the defogger will operate for about five minutes. You can also turn the defogger off by turning off the ignition or by pressing the button again. Do not attach a temporary vehicle license across the defogger grid on the rear window. If you have the optional rear climate control, the rear seat passengers can control the temperature and the amount of air directed to the rear of the vehicle. You can also adjust the amount of air directed to the rear of the vehicle using the front fan control knob. When it's cold outside, set the main climate control mode knob to lower, defog or defrost to send air to the rear of the vehicle through the floor ducts. Set the main climate control mode knob to vent or bi-level to send air to the rear of the vehicle through the headliner outlets. To send conditioned air to the rear of the vehicle, press the A/C button on the main climate controls. If you do not select A/C, air directed to the rear of the vehicle will be cabin temperature. 3-7