> It's often the fault of the human driver who takes over last second.

Per The Guardian:

  “Two years prior, the NHTSA had flagged something strange – something suspicious. In a separate report, it documented 16 cases in which Tesla vehicles crashed into stationary emergency vehicles. In each, autopilot disengaged “less than one second before impact” – far too little time for the driver to react. Critics warn that this behaviour could allow Tesla to argue in court that autopilot was not active at the moment of impact, potentially dodging responsibility. […]”

  “The real surprise came after [Mark Rober’s] experiment. Fred Lambert, who writes for the blog Electrek, pointed out the same autopilot disengagement that the NHTSA had documented. “Autopilot appears to automatically disengage a fraction of a second before the impact as the crash becomes inevitable,” Lambert noted.”