INFORMATION NOTIFICATION DEVICE AND INFORMATION NOTIFICATION METHOD

The information notification device includes a failure information detection unit that detects failure information that affects traveling of the host vehicle when the host vehicle is traveling, and a notification control unit that notifies the succeeding vehicle of at least one of the failure information and the behavior information related to the behavior of the host vehicle caused by the failure information via a display provided in the host vehicle so as to be visually recognized from the succeeding vehicle located behind the host vehicle.