A central locking system is a mechanism in vehicles that allows the driver to lock or unlock all doors simultaneously using a single control, typically a button on the key fob or inside the car. This system enhances convenience and security, as it prevents unauthorized access to the vehicle. Most central locking systems use an electronic control unit to manage the locking and unlocking process. When the driver activates the system, it sends signals to the door locks on each door, ensuring they all respond at the same time. Some systems also include features like keyless entry and alarm integration for added protection.