The driver of a Tesla Model X on autopilot died after it hit a barrier between a highway lane and an exit ramp. The NTSB found he didn't brake or have his hands on the wheel shortly before collision.
The National Highway Traffic Safety Administration said it's looking into a collision where a Model S plowed into another car at 60 mph. It's at least the third safety probe of Tesla since March.
Elon Musk, Tesla's CEO, says once the technology is fully enabled, the cars will be able to drive with no human input. Musk says previously built Teslas can't be retrofitted with the latest features.