The present disclosure relates to a shift device for a control system for a vehicle. The shift device may include at least one optical fiber for conducting a light signal, where the light signal has an input characteristic when entering the shift device, and where the light signal has an output characteristic when exiting the shift device. The shift device may further include a control element, where the control element can be moved between a home position, a first actuation position, and a second actuation position by an actuation force. The control element may have an adjustment device for adjusting the characteristic of the light signal, where the adjustment device is configured to set the output characteristic of the light signal to a first value when the control element is in the home position.