NHTSA Complaint #11571355 — 2020 TESLA MODEL 3

When driving in "Autopilot" mode which uses adaptive speed control, the car suddenly slows down without any warnings. This happens even when there is no vehicle in front of the car and therefore slowing down is not expected. This has happened several times while driving on freeways. If it weren't for my immediate reaction, serious multiple-car accidents would have happened. My reaction has been to quickly disengage the "Autopilot" system and manually accelerating to avoid rear collisions. The other issue is the car suddenly steer the wheel and drag the car to the side even when there is no reason to do so. In such cases, I have to forcefully steer the wheel to the opposite direction to avoid collision with other cars moving on either side, or parked cars on the streets.