Most times my car will start when i press the "engine start stop" button my foot is on the brake. most times it will shut down when the button is pressed. sometimes it will not. i never know when and if i will have this problem. i took the car to the hyundai dealer in toms river, nj. they said it was a faulty start-stop button. i paid them to diagnose the problem. they charged me a diagnostic fee and for a new start-stop button. i drove the car home thinking my problem was solved. the problem was eliminated for two days only to return again. when i advised them of this, i received no assistance. i can not return to this dealer. i simply don't trust them.