Abstract: A vehicular device of an embodiment includes a control unit that executes processing related to displaying on a meter display, an video processing unit that generates a video to be displayed, a video output unit that outputs the generated video, a ROM that stores a telltale image that is a basis of the video to be generated and a CRC master as an error detection code that has been calculated from the telltale image, a CRC calculation unit that calculates the error detection code, and a video error detection unit that detects an error in the video output to the meter display by comparing an HW-CRC, which is an error detection code calculated from the video output from the video output unit, with the CRC master stored in the ROM.