A vehicle controller is configured to control a plurality of display units disposed in a vehicle interior. The vehicle controller includes: a single display processing unit that is configured to perform preprocessing on a plurality of link images for the plurality of display units such that each of the plurality of link images is able to be output to a corresponding one of the plurality of display units, the plurality of link images being to be displayed in a linked manner across the plurality of display units; and a plurality of image output units each of which is configured to output a respective one of the plurality of link images to the corresponding one of the plurality of display units after the plurality of link images are subject to the preprocessing by the single display processing unit.