The investigation is the second this year involving Tesla by the NTSB, which opens only a handful of highway cases each year. The agency also is examining a Jan. 22 crash in Los Angeles in which a Tesla Model S rammed into the rear of a firetruck parked on a freeway. In that case, the driver told authorities that the vehicle was operating under Autopilot.

Source: Los Angeles Times March 27, 2018 17:22 UTC