In a method for warning a driver of a vehicle, the position of the vehicle on the roadway is determined. For the determined position of the vehicle, data relating to a curved roadway course in the area ahead of the vehicle are obtained and data relating to a self-motion of the vehicle are obtained using a driving dynamics sensor. The curved roadway in the area ahead of the vehicle is divided into at least two zones of criticality as a function of the data relating to the curved roadway course and the data relating to the self-motion, wherein each zone of criticality is assigned an assessment which assesses the driving behavior of the vehicle within the respective zone of criticality, and the assessments are outputted to the vehicle driver.