Buick PARKAVENUE 1994 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 inside of 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.
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