Reportedly according to the NTSB preliminary report the Tesla's "autopilot" accelerated and steered into the lane divider in the fatal crash in the Mountain View California. It seems also the Tesla automatic emergency braking system (collision avoidance system) failed.
"NTSB Report Says Tesla Was Accelerating at Time of Fatal Mountain View Crash"
Reportedly the "autopilot" sped up the Tesla before the crash in Utah, that injured the driver that the car crashed into a large red fire truck service vehicle. Reportedly the automatic emergency braking (crash avoidance) system did not engage, however a fraction of a second before the crash the driver applied brakes. The driver said that the Tesla gave the driver no warning prior to the crash.
"APNewsBreak: Tesla in Autopilot sped up before Utah crash"
Though Tesla wrongly scapegoated the drivers in several of the autopilot crashes, reportedly data logs indicate that at least two of the recent Tesla autopilot crashes that autopilot's sped up the cars just prior to the Tesla crashes. It also seems that the emergency braking system (collision avoidance system) failed .
The evidence suggests the drivers are at fault, however it's wrong for Tesla to throw Tesla drivers and owners under the bus to cover up Tesla autopilot problems. Reportedly Elon Musk and other upper management rejected requests for more advanced sensors and other advanced technology that would have improved safety and autonomous driving. So it seems Tesla skimped on safety that could have prevented some accidents, property damage injuries and deaths. Tesla was eager to rush unsafe underdeveloped overhyped "autopilot" and "automatic braking"into production. The hype by Tesla, Elon Musk and his minions of Russian like spambots has encouraged Tesla drivers and Tesla owners to drive with overconfidence and arrogance that leads to complacency, recklessness, property damage, injuries and deaths.
Using the "Swiss cheese model" of investigation, and safety there is typically more than one causal and/or contributing factors to accidents. So though in many cases the drivers are at fault, in many cases so is Tesla and their designs.
Tesla is lagging behind in technology and safety. Tesla is an industry leader of lies and hype.