Nor does it conclusively say whether Tesla's "Autopilot" partially automated driver-assist system was operating at the time of the crash, although it appears unlikely. The NTSB said it tested a different Tesla vehicle on the same road, and the Autopilot driver-assist system could not be fully used. Investigators could not get the system's automated steering system to work, but were able to use Traffic Aware Cruise Control. But critics say Tesla's system is easy to fool and can take as long as a minute to shut down. The Texas crash raised questions of whether Autopilot was working at the time, and whether Tesla does enough to make sure drivers are engaged.

Source: New Zealand Herald May 11, 2021 00:22 UTC