LOS ANGELES—Federal safety regulators are sending a team to California to investigate a fatal freeway crash involving a Tesla, just after authorities near Oakland arrested a man in another Tesla rolling down a freeway with no one behind the steering wheel.
Experts say both cases raise pressure on the National Highway Traffic Safety Administration to take action on Tesla’s partially automated driving system called Autopilot, which has been involved in multiple crashes that have resulted in at least three U.S. deaths.
