VEHICLE DISPLAY DEVICE, DISPLAY METHOD, AND STORAGE MEDIUM

A vehicle display device displays a predetermined image at a display region showing a view ahead of a vehicle, and includes a processor. The processor recognizes a travel lane in which the vehicle is traveling, recognizes a position of the vehicle relative to the travel lane, determines whether or not there is a possibility of the vehicle departing from the travel lane based on the recognized travel lane and the position of the vehicle, and displays, at the display region, an image of a stereoscopic object disposed along the travel lane in a case in which the processor has determined that there is a possibility of the vehicle departing from the travel lane.