My 3 has 16,000 miles. I broke the plastic lower seat control part (the "knob"?} that operates the switch mechanism. Tesla calls it a switch BTN CUSH.Tesla does not consider it a warranty repair. The good news is that the repair cost including labor is $19.95. 1/10th hour allotted to repair. After a search of this site, this does not seem to be a common problem, but the part was in stock. They did not offer mobile service in spite of my nearly 4 hour round trip. I'm not complaining since this is my first visit to service.