"Ensuring that drivers remain engaged and prevented with the use of the autopilot, is extremely important".
"They've been very helpful in this, very willing to send technicians out on short notice and interpret the data and get it back to us", Winkler said.
"In exceptional circumstances, lithium ion batteries can experience a sudden and unstoppable rise in temperature - a sort of chain reaction that can lead to a breakdown of the thermal equilibrium of the system and to the complete destruction of the batteries and the vehicle", fire safety expert Guido Zaccarelli said in an article quoted by the Bellinzona fire brigade.
In a statement, the South Jordan Police Department said the driver admitted that she was looking at her phone prior to the collision.
"These cars can't drive themselves, but it's too easy for consumers to think they can", says William Wallace, senior policy analyst for Consumers Union, the advocacy division of Consumer Reports. The driver of the fire truck suffered whiplash and was not taken to a hospital. "An impact at that speed usually results in severe injury or death".
The National Transportation Safety Board has not opened an investigation into the crash, spokesman Keith Holloway said, though it could decide to do so.
The NTSB said last week it was investigating a Tesla accident in Fort Lauderdale, Florida, on May 8 that killed two teenagers and injured another - the agency's fourth active probe into crashes of the company's electric vehicles.
A 48-year-old German driver died last Thursday when his auto hit a barrier on a highway in the southern Swiss canton of Ticino, before flipping over and bursting into flames. "Approx 4X better than avg", Musk said. "And (the Tesla driver) could be facing a citation for failing to maintain control of her vehicle".