To directly obtain detailed visual information of an on-vehicle device.

This display device is equipped with an alarm lamp lit on or off when disorder or failure is caused to a plurality of on-vehicle devices mounted on a vehicle, respectively. This information display device for a vehicle comprises storage means electronically storing images of the display device and disorder or failure information of the on-vehicle devices, and a monitor displaying the images of the display device stored in the storing means and the disorder or failure information of the on-vehicle device. The device comprises detailed information display means for switching the display of a monitor and displaying the detailed information of an alarm lamp on the monitor when the alarm lamp is touched on the monitor in the images of the display device displayed on the monitor, after the images of the display device stored in the storage means are displayed on the monitor.