KEY POINTS
  • In videos shared online and with CNBC, Tesla drivers were caught apparently asleep at the wheel, a violation of the company's terms of use for Autopilot.
  • The National Transportation Safety Board recently found that driver error and Autopilot design led to a crash involving a Tesla Model S and a parked fire truck early last year.
  • CEO Elon Musk has said that Tesla vehicles should be capable of functioning as truly self-driving "robotaxis" by the end of 2020.

A viral video of yet another Tesla driver asleep at the wheel, apparently driving an estimated 60 miles per hour down a highway in Massachusetts, renewed safety questions surrounding the car's Autopilot system this week.

The 28-second clip posted by Twitter user Dakota Randall at 3:13 p.m. Sunday had been viewed more than 560,000 times and garnered thousands of likes and retweets on the social media platform within the first 24 hours: "Some guy literally asleep at the wheel on the Mass Pike (great place for it). Teslas are sick, I guess?"