Tl* the contact owns a 2018 audi sq5. while driving approximately 25 mph, the collision avoidance system erroneously activated and caused the vehicle to abruptly stop. there were no other vehicles in the vicinity at the time of the failure. the contact indicated that the failure also occurred while driving in reverse. the failure was not diagnosed or repaired. the local dealer (bell audi, 782 us1, edison, nj) was notified of the failure. the manufacturer was not notified. the failure mileage was 1,500.