The invention relates to a method for operating a more highly automated vehicle (HAF), in particular a highly automated vehicle, comprising the following steps: 51 providing a digital map, preferably a highly accurate digital map, in a driver assistance system of the HAF; 52 determining a present vehicle position and locating the vehicle position in the digital map; 53 providing an expected setpoint traffic density at the vehicle position; 54 ascertaining a present actual traffic density in an environment of the HAF; 55 comparing the actual traffic density with the setpoint traffic density and ascertaining a difference value as the result of the comparison; 56 plausibilizing the vehicle position of the HAF at least in part on the basis of the difference value and/or 57 updating the digital map at least in part on the basis of the difference value. The invention further relates to a corresponding driver assistance system and to a computer program.