I recently discovered my rear window defogger is not working. 2 weeks ago I had my drivers side heated mirror replaced. I was wondering if the wiring for the rear window might run through the same channel as the mirror and perhaps got messed up when replacing the mirror.
The only thing I can check myself is the fuse and whether the clips are still attached at the rear window. Other than that, I think I am going to have to turn it over to a mechanic.