2003 Buick LeSabre Owner's Manual - Page 150

Rear Window Defogger The rear window defogger uses a warming grid to remove fog or frost from the rear window. Passenger Temperature Control If your vehicle has this feature, then the driver and the front-seat passenger can select separate temperature settings. This feature allows the passenger to select a temperature that is 5" F (3" C) warmer or cooler than the driver's selected temperature. The control is located on the passenger's door armrest. REAR: Press this button to turn the rear window defogger on or off. Be sure to clear as much snow from the rear window as possible. At speeds above 35 mph (55 km/h), the defogger will operate continuously until you press the REAR button again. After 10 minutes of driving below 35 mph (55 km/h), the defogger will turn off automatically. If you need additional warming time, push the button again. The system will then operate for five minutes before going off by itself. If your vehicle has heated outside rearview mirrors, the mirrors will heat to help clear fog or frost from the surface of the mirror when the rear window defogger button is pressed. Nofice: 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 defogger and the repairs would not be covered by your warranty. Do not attach a temporary vehicle license, tape, a decal or anything similar to the defogger grid. Press the red button for a warmer temperature or the blue button for a cooler temperature. Press the OFF button on the main system once to turn off the passenger's temperature control. Press the OFF button twice to turn off the entire climate controi system. 3-29