I have a 2018 LR Model 3 and my rear defroster stopped working recently. I don’t know if the following would affect it from working properly but I installed S3xy buttons several months back. The other thing I thought that may have affected it was the ceiling electrostatic covers from Taptes. I removed the cover for the rear yesterday which I didn’t realize covered part of the defroster lines. It still didn’t work after I removed it but wasn’t sure if having it on and turning on the rear defroster would cause it to not work. I did not test disconnecting the S3xy buttons commander yet. Is it possible one of these could cause the rear defroster to not work?
