CONTROL DEVICE, CONTROL METHOD, AND NON-TRANSITORY STORAGE MEDIUM

A control device includes a first processor. The first processor is configured to provide notification of a warning during autonomous driving to a first display unit of an onboard terminal installed in a vehicle; provide notification of the warning to a second display unit at a portable terminal carried by a vehicle occupant, via a second processor at the portable terminal; and in a case in which a predetermined condition has been satisfied, disable notification of the warning to the portable terminal and provide notification of the warning to the onboard terminal.