NHTSA Complaint #11451626 — 2022 TESLA MODEL 3

While driving on the interstate with the adaptive cruise control engaged I’ve now had four incidents where I’ve had to over-ride the system because the car mysteriously slammed on the brakes attempting to stop the car when no threats were apparent. These were frightening and dangerous events. I’ve had several cars with adaptive cruise and never experienced this type of un-provoked emergency braking. The for situations were as follows: 1) The road gently curving to the right while I was in the second to far left lane and there was a concrete barrier left of the far left lane divining the opposing lanes. The car apparently mistook the barrier as a threat because it slammed on the brakes without warning. I override the system to avoid a collision from behind. 2) Driving down a three lane road in the center lane when a car entered the road into the right lane and was still going much slower than the center lane. My car slammed on the brakes despite the other car never coming close to entering my path or lane. 3) two instances of the car emergency braking on a two lane road because it apparently mistook oncoming traffic in the opposing lane as a threat. Again had to override to avoid being rear ended. This adaptive cruise system is too dangerous to use as I cannot trust it to not brake hard and unexpectedly.