The invention relates to a method for operating a driver assistance system of a motor vehicle, wherein the motor vehicle is initially operated in a piloted or fully autonomous driving mode by a driver assistance device. Piloting data is provided by a control device of the motor vehicle, which describes at least one operating parameter of a motor vehicle system of the motor vehicle or the surroundings of the motor vehicle, and are navigation data. It is checked whether a totality of the provided piloting data meets a piloting condition, which stipulates a minimum requirement for the totality of the provided piloting data for implementing the piloted or fully autonomous driving mode. Upon failure to meet the piloting condition, an abort of the driving mode is determined and a driving situation signal is generated, which describes the piloting data and this signal is transmitted to a communication unit of a motor vehicle-external server device. The control device receives at least one control signal from the motor vehicle-external server device and transmits this control signal to the driver assistance device.
