CONTROL DEVICE, CONTROL METHOD, AND STORAGE MEDIUM STORING CONTROL PROGRAM

A control device includes a movement state acquisition unit that acquires a movement state of a vehicle towing a trailer , a relative position acquisition unit that acquires a relative position between the vehicle and the trailer , and a display control unit that displays a first predictive guide indicating a predicted passing area of the vehicle and a second predictive guide indicating a predicted passing area of the trailer . The display control unit changes display of at least one of the first predictive guide of the vehicle and the second predictive guide of the trailer based on the movement state of the vehicle and the relative position between the vehicle and the trailer