Rear defroster not working. Defroster light will not come on. Defroster not working.

SOURCE: location of fuses and relays for the rear window defroster

two locations, one under dash and one under hood. without your manual, thats about all I can help you with

SOURCE: rear defrost on 97 buick lesabre not working

your problem is in the window..........if you are getting 12v to the wires that connect to the window the lines in the window must have a break in them ............. they must conduct the dc volts to complete the circut, the lines heat form the voltage running through them thus ridding your window of fog and ice
hope this helps...........thanks for choosing FIX YA!

SOURCE: rear defroster on 2002 alero does not work

I found this on another site... it seems like a credible post so I thought I'd share... I'm going to check it out next weekend.

"Just an FYI. The rear defroster issue is due to a bad Antenna Buffer Module / Antenna Module. The power to the rear defogger goes through a module that separates the antenna amplifier signal from the 12 volt power to the defogger. The defogger elements also act as the antenna. The module is behind the rear pillar right behind the rear passenger door. The inside plastic has to be gently pulled off, the seat needs to be folded down to get the lower part of the trim off. One screw at the bottom, unplug the wires... (two connect to the window grid, mark which one is which)... and the module is free.
The module may require re-soldering of the pins joining the main power connectors to the internal circuit board. If you feel you can do this (or have a friend do it for you), go for it... else get another module from the dealer to replace it."

This is the most credible of the several posts that I've seen talking about this module. I know its there... I saw it yesterday when I was working on the car.

SOURCE: Rear window defroster

you need to make sure the wires are on the glass on each side and there is no broken wires in the glass there is a repair kit at a auto store to fix if you have a volt meter test it and that way you can find the problem look for breaks in the wire in the glass and do not for get the wires on each side of the glass.

SOURCE: where is the fuse for the rear window defroster on

Hi there. I assume you don't have a owner's manual, or know where the fuse box is...