NHTSA Complaint #11482866 — 2022 TESLA MODEL 3

Often when driving on the highway with the cruise control on, the car will activate heavy braking without provocation. Sometimes it happens once on a 2 hour drive other times it happens 3 or 4 times on an hour drive. One time, I was the only car in sight when I was in a double lane 65mph divided highway. I am not using full self driving or auto steer, however it has occurred while using Auto Steer (beta). I'm not sure what causes this braking, but it's dangerous. One time it brake checked a semi truck before I slammed on the accelerator pedal to disable the braking system. Other times I can feel short choppy accels/decels on the highway again without having a car/object in front. Today a driver was following closely and it went into full braking mode. I'm not convinced it's emergency braking, however when you take your foot off the accelerator pedal it does brake heavily with regenerative braking. In our ownership of the car, the collision warning has chimed at us once but not actually activated braking to my knowledge. So far I've seen complaints about Full Self Driving autopilot Phantom Braking, however we don't have that package. However the same systems are physically installed that may feed into the safety systems.