A shifting system is provided which comprises a transmission, a driver interface, and an inhibitor switch actuating module. The transmission is configured to receive a rotational force and to realize a predetermined shifting ratio, and it has an inhibitor switch. The driver interface module generates a target shift range signal corresponding to a shift range that is selected by a driver. The inhibitor switch actuating module is connected through a real-time communication bus to the driver interface module, and it actuates the inhibitor switch based on a current inhibitor switch position and the target shift range signal input from the driver interface module.