METHOD FOR LOCKING AND UNLOCKING A MOTOR VEHICLE, MOTOR VEHICLE AND COMMUNICATION SYSTEM

A method for locking and unlocking a motor vehicle having an operating device, which is mounted on the motor vehicle and can be actuated, and a communication system is provided. The operating device and the communication system communicate with a control device of the motor vehicle. An authorization key is provided to the control device, which locks the motor vehicle. The motor vehicle is unlocked by the control device if a successful user-authentication of a user of the motor vehicle has been performed. It is essential that the user of the motor vehicle activates and deactivates the execution of the method for locking and unlocking the motor vehicle by the communication system.