2007 Pontiac Grand Prix Owner's Manual - Page 161

An indicator light to the right of the button will come on to show that the recirculation button has been pressed. The instrument panel brightness control may have to be adjusted to the highest setting to see the indicator. The recirculation mode has a timer. After five minutes, the system's air inlet door will move slightly to allow for ten percent fresh outside air to maintain interior air quality. The only way to reset the system to full recirculation is to restart the five minute timer by selecting vent/outside air and recirculation again. = (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 about 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. 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: Do not use a razor blade or sharp object to clear the inside rear window. Do not adhere anything to the defogger grid lines in the rear glass. These actions may damage the rear defogger. Repairs would not be covered by your warranty. z (Heated Seats): Press this button to turn the heated seats on and off. The button on the left controls the driver's seat and the button on the right controls the passenger's seat. See Heated Seats on page 10 for additional information. 161