Question about 2000 Buick Park Avenue

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Rear window defroster wont work.

2000 park avenue rear window defroster not working. when turned on switch is lit. any sugestions?

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  • Anonymous Mar 19, 2014

    both were working now just a/c works by pushing defroster button. a/c will only turn on by pushing defroster button

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First place to check is under the wide trim piece that runs over the back drivers side door and also runs to the back window. You can pull this away from the body. It just snaps in place and the seatbelt goes through it. Pull it down toward you and you should see a black box fastened to the side of the window pillar. It should have three wire connections. One is the radio antenna, one goes to the window and one comes from the wire harness. Check the two wire connections from the harness and to the window. See if they are loose or in my case the one from the harness was burnt and had melted the black box where the wire went in. I had to replace the the wire connector and the black box ($72.00) and replaced the connector terminals. The replacement connector is available but that little thing is pricey ($32.00). They must be proud of that thing.
Hope this helped.

Posted on Jan 27, 2009

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Try looking at rear window where the wire connects for the defroster usually it is a single wire... the defroster for the rear is kinda designed like a toaster the lines you see running through the glass transfer heat when power is applied..

Posted on Dec 30, 2008

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My rear defroster won't work I have a 2000 Buick Park Avenue


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If the rear "grid" on the defroster only works in some areas then you have a broken link, the grid needs to be connected for it to work.

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