NHTSA Complaint #11470987 — 2020 TESLA MODEL 3

The Tesla lane assist and adaptive cruise control failed while I was driving on the highway (I-295 in DC). I have not paid for the full self driving, so I was using the autopilot every Model 3 uses by default. The car skidded into the barrier on the side of the highway and tore up the back left tire and scraped the car. Autopilot was engaged but the car didn’t slow into the turn. I started to slow it down manually by down clicking the knob on the steering wheel, but it lost control even though autopilot was on the entire time. I’ve driven on autopilot on that highway hundreds of times. Autopilot always slows down on its own going into a turn. I was paying attention and am a very attentive driver. But autopilot normally would never have a problem with a turn like that, so I didn’t want to hit the brakes or do anything to disengage autopilot at the last second. I thought that would make things worse. I took over manually once it hit the barrier, obviously. At that point, I kept it from veering back into the other lane so that it would not hit the car next to me. Normally, there is more traffic ahead of me when I drive in that lane at that point on 295, so autopilot slows down because there are cars directly ahead of me. In this case, there were no cars ahead, so the autopilot didn’t reduce speed until later than normal. But I have been using Tesla autopilot for almost 3 years. It normally works quite well. The issue here seems to be that the autopilot does not see far enough ahead. Even though a sharp turn was coming up, it did not slow down at all until it was very close to the turn in the highway. The reason I am reporting this now is that Tesla ignored me when I reported it. I brought it in for service, and it cost me $1500 for Tesla to repair the wheel after the crash. But Tesla didn’t investigate the failure by the autopilot, or pay for it. And I saw on the news that you are investigating autopilot failures, so I thought you should know about this one too