CLEANING NOTIFICATION DEVICE, CLEANING NOTIFICATION METHOD, AND NON-TRANSITORY RECORDING MEDIUM IN WHICH CLEANING NOTIFICATION PROGRAM IS RECORDED

There is provided a cleaning notification device including: a detection unit which, in a case where cleaning of an imaging device that is installed on a vehicle and captures images of the environment external to the vehicle has been performed, detects the line of sight of a user riding in the vehicle; and a processing unit which, in a case where the user is looking at a first display device that displays captured images that have been captured by the imaging device, executes a process relating to an implementation notification indicating that cleaning of the imaging device has been implemented.