Unintended acceleration - while coasting, the vehicle accelerates on its own up to 30mph. this has occurred while approaching traffic lights, stop signs, parking lots, crosswalks and parking in the garage. this has happened on several occasions with two different drivers and even the dealer has experienced the same symptoms. the vehicle also stalls while stopped in the roadway to turn. acura sent a regional service director to test the vehicle and my driving skills and states that since there are no trouble codes from the computer, all systems are operating as designed. braking - the adaptive cruise control will sense large vehicles in adjacent lanes and small vehicles on curves and abruptly apply brakes. the vehicle believes these vehicles are in our lane when they are in fact in the adjacent lane. we have had several near misses where the vehicle behind us almost rear ended us due to the immediate and unnecessary application of the brakes. we have no confidence in this vehicles technology to perform as intended and fear eventually someone will be hurt or killed as it does not recognize pedestrians either.