NHTSA Complaint #11498750 — 2019 TESLA MODEL 3

12/24 between 7:54am and 8:55am driving on the 10 west from Arizona to California while on auto drive within one hour experienced 4 times the car engaged the brake while traveling 80 mph on the highway. All 4 times there was nothing in front or side of the vehicle. The vehicle did not alarm a sensor that something was in the way. Fortunately we reacted quickly and continued with the accelerator so we didn’t stop abruptly on the Highway. 2 out of the 4 times it was a very hard brake the other two times it was hard but not nearly as forceful. Again nothing in the road, sun behind us, no indicators of obstructed cameras. We haven’t been on a long trip with the car in a long time, however my son drove from Orange County , CA to Los Angeles one evening about 6 weeks ago and he said the same thing occurred 3 times while on the trip and on the highway. I did Google the situation and it sounds like I am not the only one who has experienced the phantom braking situation. We have disengaged the auto drive and auto pilot the remainder of the trip.