Abstract: A vehicle immobiliser having an input device configured to receive a code and an output device configured to issue an instruction to a controller of a vehicle is disclosed. The vehicle immobiliser may be configured to prevent an operation of the vehicle when the vehicle immobiliser is armed and allow an operation of the vehicle when the vehicle immobiliser is disarmed. The vehicle immobiliser may also be configured to operate in a first life-state and a subsequent second life-state. The vehicle immobiliser may enter the second life-state only after being disarmed in the first life-state. When the vehicle immobiliser is armed and in a first life-state, the vehicle immobiliser may be disarmed upon receiving the code that satisfies a first disarming condition. Similarly, when the vehicle immobiliser is armed and in a second life-state, the vehicle immobiliser may be disarmed upon receiving the code that satisfies a second disarming condition.