• Tiny
  • nigelbrit
  • 2007 Chevrolet Impala
  • 6 CYL
  • FWD
  • automatic
  • 96,000 miles

The rear defogger on my wife's 2007 Chevy Impala will not work. I could not find a fuse so I replaced the relay and it still didn't work. I have a circuit through the back window but no power to the wires. The switch light does comes on when you press it. Please can you help. Its snowing here.

Do you
have the same problem?
Saturday, December 18th, 2010 AT 2:03 AM

1 Reply

  • Tiny
  • hintz22
  • Member

I am having the same issue. After reading another forum I looked at a wire harness under the front passenger kick board and found burnt wires. I spliced around the harness and still have no power to the defogger. It appears to me that GM has massively undersized the wiring to the defogger and I plan to run a jumper wire around all the harnesses straight from the fuse panel under the hood. It is a solid wire behind the harness at the kick panel. So I only plan to go that far. If you run your jumper from the relay controlling the defogger it should all work properly and only cost about $5 to fix.

P.S. The fuse that runs it is battery fuse 3 right next to the relay.

Was this
Friday, January 7th, 2011 AT 10:26 PM

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