Utah Police Docs Add New Detail to Utah Autopilot Crash

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Image: South Jordan Police Department via Associated Press

The collision earlier this month between a Tesla Model S and a stopped fire truck in Utah didn’t result in serious injuries, but questions remain as to why the vehicle, piloted by a suite of driving aids, didn’t recognize the approaching danger.

Witnesses claim the vehicle didn’t brake in the moments leading up to the impact. The driver, admittedly distracted by her phone (for a period of 80 seconds), only reacted less than a second before impact, police said. Now, thanks to a South Jordan Police Department report obtained by The Associated Press (via The Detroit News), we know a little more about what happened in those last moments.

According to the docs, obtained via an open records request, the Model S accelerated for 3.5 seconds prior to the May 11th collision. Less than a second before impact, the 29-year-old driver manually applied the brakes.

The Model S involved in the accident had been in the driver’s possession for over two years, and had apparently been used in this manner several times. The driver even told police she had enabled its Autopilot functions on the same stretch of road. Obviously, she felt comfortable leaving the driving duties to the car, despite Tesla’s warning for drivers to remain alert, with their hands on the wheel. She told the police as much.

Unlike those other trips, however, this one saw her car plow into the back of a stopped truck at 60 mph. That’s the speed the driver set, police say, and records show the vehicle’s Traffic Aware Cruise Control slowed the car down to 55 mph shortly before the crash to match a vehicle driving ahead of it. It’s assumed that vehicle then changed lanes, prompting the Tesla to accelerate back to its cruising speed. At that point, the collision occurred.

The driver,┬áHeather Lommatzsch, claims the car issued no visual or audio warnings in those final moments. Why the car’s forward-facing camera and array of sensors didn’t detect the stopped vehicle is something the National Highway Traffic Safety Administration intends to find out, as this isn’t the first time a Tesla has collided with a clearly visible object while under Autopilot control.

Light rain was apparently falling at the time of the crash, which occurred during daylight hours.

While Tesla heightened its calls for caution after a fatal Florida crash in 2016, the word “Autopilot” remains in the automaker’s lexicon. That’s irking safety advocates, as the name itself implies full autonomy. The actual system is supposed to be used as a semi-autonomous driving aid, regardless of what online enthusiasts post in their videos.

Just this week, two safety non-profits, The Center for Auto Safety and Consumer Watchdog, called on the Federal Trade Commission to investigate Tesla’s use of the word, calling it “deceptive and misleading.” Tesla countered by saying its customers know the system’s limits, and that the company provides proper instructions on how to use the feature.

[Image: South Jordan Police Department via Associated Press]