NHTSA Complaint #11452863 — 2021 TESLA MODEL Y

While driving on the interstate (divided) highway at 73 mph with adaptive cruise control engaged, the vehicle abruptly braked. There were no other vehicles or obstructions within 250' at the time of braking. No warning lights or messages appeared. To correct the situation, I immediately pressed the accelerator to increase speed. Conditions: daylight, dry road surface. If another vehicle was following close by this could have caused an accident. I've had the car about 7 months and this type of braking has occurred 7 times, all with no vehicles nearby. It has happened both in the daytime (6) and night (1) at similar speeds mention above. I brought car in for service at Tesla on two occasions for this problem and they could find no faults in the software or braking. Basically, I was told Tesla continues to update software.