So this may not be found in the States but here in Japan we have these at almost all parkings as a tire stopper. tire stopper - Google ŒŸõ A few days ago I back into a parking space in an underground garage, and was stopped by this tire stopper. No weird sound or vibration. After one hour, I put the shift into D, and drive off - some noise and vibration, but I didn't look back and later found this. Imgur A small part was dropped and some scratches! Luckily no visible-from-outside damage. Per Tesla the part is called as rear bumper applique, and fixing these would cost over $600. Has anybody done this before? Why does this happen? With air suspension, it takes a long time to adjust the height after shifting into D? Usually with coil suspension the height slightly drops while parking, but not like this... If this is normal I have to raise it every time I go out of any parkings.