Start/Stop feature in many new cars mainly Chevys They claim it saves you gas by shutting off your engine anytime you are stopped at a light. eally its just annoying as -blam!- as your car shuts off and on everytime you stop at a light. And the worst part is you cant shut it off Its defintely just a gimmick by car companies to act like they are doing something ecofriendly because it certainly doesnt save gas