If your Ford or GM vehicle has Auto Start/Stop, we have the solution! The Range Start/Stop Disabler prevents your vehicle from shutting off and restarting every time you come to a stop in traffic. No hesitation, no delay. Your car will react when you tell it to. Our patented technology is the only product that will disable start/stop in Ford and GM vehicles without reprogramming your ECU! That means that your warranty will remain intact if the need to visit your Ford or GM service department ever arises.