Earlier Wednesday, the National Highway Traffic Safety Administration said it was sending investigators to Utah and would "take appropriate action based on its review".
The driver was traveling at 60 miles (97 km) per hour when the Model S smashed into a fire truck stopped at a red light about 20 miles south of Salt Lake City on Friday night, according to police.
"It's super messed up that a Tesla crash resulting in a broken ankle is front page news and the (approximately) 40,000 people who died in USA auto accidents alone in past year get nearly no coverage", Musk said in a tweet.
The vehicle registered more than a dozen instances of her hands being off the steering wheel in this drive cycle. "She did not touch the steering wheel for the next 80 seconds until the crash happened".
San Francisco: Tesla chief Elon Musk defended self-driving auto technology on Tuesday after reports about the latest crash involving one of the electric carmaker's vehicles.
The driver manually pressed the vehicle brake pedal fractions of a second prior to the crash.
"When using Autopilot, drivers are continuously reminded of their responsibility to keep their hands on the wheel and maintain control of the vehicle at all times", a Tesla spokeswoman said in an emailed statement.
Last week, NHTSA also said it would probe a May 8 Tesla accident in Florida that killed two teenagers and injured another.
Federal officials blamed the truck's driver for failing to yield, on the driver for relying too heavily on Autopilot, and on Elon Musk-led Tesla - the National Transportation Safety Board ruled that Autopilot contributed to the crash by allowing lengthy disengagement from the driving process, on a roadway unsuitable for the semi-autonomous-driving system.
The agency said the fire, which may have been exacerbated by the vehicle's battery, is the focus of the investigation, not the vehicle's semiautonomous system. The vehicle was in autopilot mode when it slammed into a median on Highway 101 in Mountain View, Calif. The NTSB had yet to announce whether they will be looking into the Utah crash.
The electric auto company is in the middle of a huge push to ramp up production of its critical Model 3 sedan, an entry-level vehicle that it hopes will turbocharge electric auto sales among a new demographic and fill the companies coffers after years of bleeding cash.
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