Daughter’s 2010 Corolla driver side mirror glass was all cracked. It’s heated and electric remote. To replace the whole assembly at a shop costs several hundred bucks. I bought the replacement glass off ScamBay for $35. The problem was the replacent part’s two plastic connectors in the back of the glass were crap and small parts broke off when I tried to remount. I took the original parts and put them on the back of the replacement mirror, and after some grunting and swearing, the operation was a success.
