1993 Buick Park Avenue Owner's Manual - Page 138

Defrost This setting will direct most of the air flow toward the windshield. Use DEFROST when there is fog or iceon the-windshield. Rear Window Defogger The lines you see on the rear window will warm the glass. Press the button to start warming your window. After 10 minutes, it will go off by itself, orpressing the button again during the heating cycle will shut it off. If you need additional warming time, push the button again. c . i Defrost will work better if any ice and snow is cleared from the hood and the air inletarea between the hood and the windshield. Blower speed will be controlled automatically, but you can choose another speed by pushing the HI or LO buttons. If you have the heated outside rearview mirror option, the mirror will be warmed when the rear defogger is on. 1. i NOTICE: , . .'. , '2 , , ~. , . . ..~ I:Scraping the inside your rear window could of cut and damage the heater. warranty would Your