NHTSA Complaint #11488529 — 2021 TESLA MODEL Y

Vehicle was driving with auto steer enabled at 65 mph on freeway and braked unexpectedly and unnecessarily 3 times within a few minutes. Each time it occurred, I canceled auto steer and re-engaged. At no time were any obstructions or objects visible in front of the vehicle, and at no time did any warning lights or messages appear, the car simply braked without notice. Safety was at risk as cars behind me were traveling closely and were not expecting my car to brake suddenly, although I responded quickly enough to prevent further braking and accelerated out of danger. I have researched "phantom braking" and it seems this incident is exactly what was described in those reports. The car has not been inspected since the incident. I am hesitant to use auto steer since I do not trust that the cameras are adequately detecting what's in front of the vehicle.