NHTSA Complaint #11520538 — 2020 TESLA MODEL 3

I was driving on a highway using the adaptive cruise control. Several times the car braked for no reason at all. There were no cars in front of us, it was phantom breaking for no apparent reason. It was a long road trip of 12 hours over 2 days and I stopped using cruise control when anyone is behind me out of fear of causing an accident. The issue happened at least 15 times over the 2 days. It is a safety issue in my opinion, as other cars following you may rear end you when the car brakes hard for no reason. I've owned the car for a while, and it seems to have gotten much worse than it was before. There are no warnings before it does the phantom breaking. I have not had it inspected by anyone else. I believe it is a software issue that needs to be fixed by Tesla, as there are no error messages, and all my cameras appear to be functional.