Question about 1997 Buick LeSabre

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Rear defrost on 97 buick lesabre not working

I drive a 1997 buick lesabre custom and the rear defroster stopped working last spring... naturally, I put off fixing it until the first snow this year reminded me that it was broken. The light in the dash still lights up when I try to turn on the defroster, but no melting in the back window.

So far I've taken a multimeter to the back window and I am getting voltage to the plug in the back window where the defroster connects. I even get voltage on the other side of the window where the defroster grounds to the frame, so I think the problem is not in the window itself.

The fuse is good, but I don't know where else I could be loosing the amps necessary for the defroster to work right.

Thanks for your suggestions!!!

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  • Anonymous Apr 01, 2014

    My rear stop lights are not working but the stop light in the back glass works properly. What could be causing this problem. I check voltage at the lights and there is no voltage unless I remove all the rear bulbs.



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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!

Posted on Jan 04, 2009


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