Abstract: A parking lock mechanism is proposed for a motor vehicle which has one automatic transmission, particularly one continuously variable belt transmission, having one locking pawl tiltably situated on one end and which, when the parking lock is activated, engages with one tooth in a parking lock gear non-rotatably situated upon the output shaft or secondary shaft and one locking member which is movably situated against the force of a spring upon a connecting rod connected with a selector mechanism and, by its movements, the locking pawl is rotatable to locking position between the locking pawl and a guide plate or a supporting lock, a stop mechanism (10) is provided on the end of the connecting rod (6) remote from the selector mechanism or on the free end of the connecting rod (6) to prevent the retraction of the locking member (2) from the guide plate (3) when the parking lock is activated.