Hello and thank you for the feedback. We appreciate it! I remember this scenario and hope I can help to clarify things.
The mirror housing is melted/deformed. The vehicle is under warranty but the condition was very apparent it was outside influence. Just to rule out any possibility of it being due to overheating with the wiring, we removed the glass and shell of the mirror and walked you out to the vehicle, with it disassembled. We found no damage to the inside. There were no blackened or overheated wires, and all functions of the mirror worked correctly. I thought at the time you had agreed with us that there was nothing else that could be done and declined replacement of the mirror housing? Please know we always want to do whatever we can in the interest of our customers to get repairs covered, but Toyota will only warranty replacement of "defective" parts. I hope you can understand our limitations when it comes to that. Please let me know if I can be of any other assistance.
Assistant Service Manager
Customer Relations Manager