Several weeks ago I was driving on a dual carriageway A13 with the autopilot on set at 70mph (Limit) and for no reason the car slammed on the brakes, the car behind had to swerve to avoid the rear of my car and was understandably upset. Thing was nothing was in front of my car in any lane and there was no warning given. Reported to Tesla service immediately, find no fault.
So a week after this, driving again, same road, different direction, but this time in a jam, car comes to a halt, no problem, car in front pulls out of the lane, my car accelerates hard at the truck in front, manage to hit the brakes hard enough to make the wheels lock up, but avoid the collision, again no warning.
Finally 6 weeks ago, driving in traffic on a single lane road, again auto pilot on, to take the strain out of traffic, this time for no reason car spins the wheel left, after which it then says something like auto steering disengaged. If anyone had been on the left, the car would have taken them out.
So after each event I speak to Tesla
First response that shouldn't have happened, we will investigate, you may need to reset the car - Never heard another word
Second response that shouldn't have happened we will investigate - Never heard another word
Third episode, that shouldn't have happened we would recommend you don't use it till we find out what went wrong, 5 weeks later I get a call saying the auto steer disengaged, my response, I know it did, after doing a sharp left turn. Response well you shouldn't be using it in traffic or any other road than a motorway or freeway, but we will look into it.
The last contact was two weeks ago, meanwhile I don't use auto pilot and the screen they were ordering in to replace my faulty screen 7 weeks ago still no mention.
Way to go Tesla