NHTSA Complaint #11481352 — 2022 TESLA MODEL 3

I wish to report numerous cases of the phantom braking or spurious deceleration that I have experienced. In driving over 2500 miles on highways I have experienced this issue at least 40 times. It would be more, but I have stopped using it. Almost all cases were on mostly open roads through Kansas, Colorado and Wyoming. The odds of it happening appear to be higher when the road is hilly and another vehicle, typically a semi, is far ahead. Timing the distance, it looks like the semi is 12-15 seconds ahead of me in a 70mph zone. This creates a situation where I may be cresting a slight hill upwards while the semi is cresting the next hill ahead of me. That situation (just one example, others are more flat roads with no vehicles ahead) creates a distance challenge where the point between the vehicles is shorter than the actual distance, due to the hills. One instance slowed so quickly the tires squealed briefly. This feature, Traffic Aware Cruise Control TACC or autopilot, should never be used if another vehicle is following closer than 5-8 seconds behind. I have tried things to help the situation, such as making sure the cameras are clean and recalibrating the cameras with clearly defined lines and no changes have resulted.