NHTSA Complaint #11536356 — 2018 TESLA MODEL 3

The issues are all related to the feature called AutoPilot, all on a highway, traveling at highway speed while using autopilot. sunny, dry, daytime 1. The car hard braked with no other vehicles or objects on roadway. I had to take back control quickly 2. The car hard braked when i was driving in the right lane and a car was in the entrance lane beside me, causing a near accident with the other vehicle which was trying merge onto lane, i had to quickly take back control to avoid a dangerous situation. 3. I was in left lane and turned on the turning indicator to move to the right lane, the car started to move lanes, then suddenly abandoned attempt, moving back to the original lane. there was no object in the target lane and there was a car behind me in the left lane wanting to pass, causing a dangerous situation. (this happened twice)