 The butler was confused when the S600 doors wouldn't open when he tried, but when Jeremy approached with the transponder in his pocket, the system acknowledged this and unlocked the car, allowing Jeremy to simply pull the door handle to gain entry to the vehicle.A microswitch system is always armed and is usually activated if one of the vehicle doors is opened and closed again while the vehicle's engine is running.Once the system has been activated, the driver will have a set time limit to disarm it by entering a code before the vehicle takes measures.