VEHICLE SYSTEM AND STORAGE MEDIUM

A vehicle system: estimates a position of a host vehicle; acquires, from outside of the host vehicle, a probe data map generated based on probe data; recognizes periphery information indicating a periphery of the host vehicle using a detection result of an autonomous sensor; specifies an attention point using the probe data map; recognizes a driver status; compares feature information indicated by the probe data map with the periphery information of the host vehicle and determines whether the probe data map has a high quality or a low quality; determines, based on the driver status, whether the driver performs a safety confirmation for the attention point indicated by the probe data map when the probe data map is determined to have the high quality; and notifies the driver of a determination result of the safety confirmation.