A method for a device for a vehicle is disclosed, wherein the device comprises a key chip. The method comprises obtaining information relating to the release of a key signal or of an immobilizer signal from a central computer via a wireless mobile communication system. The method further comprises providing a control signal to the key chip based on the information relating to the release of the key signal or of the immobilizer signal, wherein the control signal is designed to allow the key chip to generate the key signal or the immobilizer signal. The method further comprises providing the key signal and/or the immobilizer signal, by the key chip, via a wireless communication link to a central locking system and/or an immobilizer system of the vehicle after the control signal is obtained.