2005 Pontiac Grand Prix Owner's Manual - Page 135

Rear Window Defogger The rear window defogger uses a warming grid to remove fog or frost from the rear window. Be sure to clear as much snow from the rear window as possible. Notice: Using a razor blade or sharp object to clear the inside rear window may damage the rear window defogger. Repairs would not be covered by your warranty. Do not clear the inside of the rear window with sharp objects. Dual Automatic Climate Control System With this system you can control the heating, cooling and ventilation for your vehicle. =(Rear Window Defogger): Press this button to turn the rear window defogger on or off. An indicator light to the right of the button will come on to show that the rear window defogger is on. The instrument panel brightness control may have to be adjusted to the highest setting during the daytime in order to see the indicator light. The rear window defogger will turn off approximately 20 minutes after the button is pressed. If the button is pressed again, it will run another 20 minutes. The defogger can be turned off by pressing the button again or by turning off the engine. Do not drive the vehicle until all windows are clear. Automatic Operation AUTO (Automatic): Turn both the fan and mode knob to AUTO for automatic control of the inside temperature, the air delivery mode and the fan speed. You may notice a delay of two to three minutes before the fan comes on when the automatic operation is used in cold weather. For the automatic system to function, the temperature must be set between 60°F (15°C) and 90°F (32°C). 1. Adjust the temperature to a comfortable setting. 3-29