NHTSA Complaint #11532373 — 2018 TESLA MODEL 3

I have owned my Tesla Model 3 since early 2019. The adaptive cruise control worked incredibly beautifully for years up until a few weeks ago - I think sometime in June 2023 (could have been May 2023). All of the sudden, I was *frequently* experiencing phantom braking, ie. braking with no explanation, while using adaptive cruise control. Sometimes the braking was gradual, other times more forceful. It would happen at random places - Sometimes in/near intersections or around other vehicles, other times just out on the open road with no vehicles or stoplights anywhere in sight. Even on a 20 minute drive, it can happen three or four times. To me, this is a severe hazard. I have a disability, and I purchased this vehicle because of the incredible safety features. Prior to this, it has 100% lived up to what people said about it - just amazing. But now, the very reason I purchased this vehicle, its advanced safety features, I find not just unreliable but somewhat terrifying. I *believe* that Tesla may have (effectively / unintentionally) disabled the built-in radar in vehicles like mine. This is because I've read online accounts of people with the same year having the same problems as mine, also at around the same time that mine started. Specifically, my model year has radar built in. But I understand that newer Teslas rely solely on cameras, ie. "Tesla Vision." I understood that because my vehicle physically has radar installed, that my adaptive cruise control would still work at least as good as it had in the past - certainly not worse. If this can't be fixed I'll be forced to sell the car, which I desperately don't want to do, as I love the car and I think the world of Tesla. I just want it to work properly again.