This was first report of an autopilot mishap with a truck trailer. The narrow cones of the sensors are primarily aimed at bumper levels, but not at the higher space above it. The cars just went under the high clearance trailers because the sensors don't 'see' them. The impacts are deadly because they are at windshield/greenhouse/head/skull level. Tesla owners should not to use the Autopilot mode until Tesla and other autonomous vehicle manufacturers add more sensors aimed ABOVE their beltlines. Sad but inevitable lessons in the advancement (and DOT requirements) of autonomous vehicles.
Man Claims His Tesla Model S Crashed Into A Trailer All On Its Own