A method is provided for operating a driver assistance system of a vehicle, including the following steps: formation of video data that correspond to an object in a surrounding environment of a vehicle, formation of at least one motion parameter of the object relative to the vehicle, based on the video data, and standardized to a distance between the vehicle and the object, calculation of a collision-related threshold value based on the standardized motion parameter, the driver assistance system carrying out an action as a function of a comparison between the threshold value and a collision-related parameter. A driver assistance system, a vehicle, and a computer program are also provided.