1994 Buick Park Avenue Owner's Manual - Page 141

Rear Window Defogger The lines you see on the rear window will warm the glass. Press the button to start warming your window. NOTICE: Scraping the insideof your rear window could cut and damage the heater. Your warranty would not cover this damage. Don't put decals there, you might have to scrape them off. If your Buick has the Electronic Touch Climate Control System, the following information tells you how it works. After 10 minutes, it will go off by itself, or pressing the button again during the heating cycle will shut it off. If you need additional warming time, push the button again. If you have the heated outside rearview mirror option, the mirror will be warmed when the rear defogger is on. 139