A control device is provided for activating and deactivating a child safety lock function of rear doors of a motor vehicle. The control device includes a safety lock device connected to rear inside door handles of the rear doors. The control device also includes a central control unit for controlling the safety lock device between a first operating position that defines a normal operating mode, in which the safety lock device allows the rear doors to be opened using both the rear inside door handles and the rear outside door handles, and a second operating position that defines a safety lock mode, in which the safety lock device does not allow the rear doors to be opened using the rear inside door handles. A selector device is included for manually selecting between the normal operating mode and the safety lock mode. A temporary consent button is included for manually activating a temporary consent function, which temporarily deactivates the safety lock mode, thereby temporarily reactivating the normal operating mode.