2000 Oldsmobile Silhouette Owner's Manual - Page 212

Operating the HVAC system in the RECIRCULATION mode may cause fogging of the vehicle's windows when the weather is cold and damp. To clear the fog, switch the HVAC system to either the DEFOG or DEFROST mode and increase the fan speed. To avoid re-fogging of the windows, operate the HVAC system in the OUTSIDE AIR mode. For additional information, refer to "RECIRCULATION" earlier in this section. Do not attach a temporary vehicle license across the defogger grid on the rear window. 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 Window Defogger (If Equipped) Press the REAR button (the light will glow) to warm the defogger grid on the rear window and to turn on the heated outside rearview mirrors. Rear Climate Control (Option) 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 knob to LOWER, DEFOG or DEFROST, to send air to the rear of the vehicle through the lower vents. 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. Set the main climate control mode knob to UPPER or BI-LEVEL to send air to the rear of the vehicle through the headliner outlets. 3-5