Twice, i was driving at 35 mph or less and the brakes engaged automatically all on their own, slamming on the brakes flashing "brake" message in the instrument panel and stopping the car while in motion.the city road was dry both times.first time june 12, 2018, traveling 27 mph, there were large construction barrels along the road on the right side, cars on left, the car in front was 1-1.5 car lengths away, my car was in the right lane, no items on the road surface, my car stopped in the middle of an intersection.dealer couldn't find a stored message or any problems.second time, august 18, 2018, driving in the left lane, grass median with trees, no cars close (all were at least 2-3 car lengths away), nothing on road surface, about 30 mph, on a city street. dealer again couldn't find anything.this is very scary. how do i know if it won't happen again while driving at a higher speed and the car stops abruptly and i get rear-ended and die?
Using adaptive cruise control (acc) vehicle with start to stop when a vehicle is left turn lane either already there or turning into when in front of my vehicle requiring override with gas petal. started intermittent; over 6 months period more consistent with this problem. speed from 25 to 45 mph.