NHTSA Complaint #11467350 — 2018 TESLA MODEL 3

When driving on undivided highways, the car will phantom / panic brake due to oncoming cars approaching in the opposite lane. At times, the car phantom brakes for no apparent reason at all as there are no cars nearby. At night, it gets much worse, with the car phantom/panic braking at nearly every oncoming car. My 2018 Model 3 is equipped with radar-assisted Autopilot, but newer Tesla vehicles don't have the radar hardware at all and instead rely on a vision-only system that uses the cameras alone. When I opted into Tesla's Full Self Driving beta, the new software disabled my car's radar and my car became a "vision-only" vehicle, like newer Tesla vehicles. At this point, phantom / panic braking became significantly worse. When radar was used, the braking was rare but still unsettling. With vision-only Autopilot, it's nearly unusable. Even with basic cruise control, phantom / panic brakes happen with the same frequency as if you're using Autopilot. I basically can't use any cruise control or autopilot when driving on undivided highways. On interstates and in-city highways, phantom / panic braking does still happen, but it's less frequent.