CONTROL DEVICE AND CONTROL METHOD

A control device controlling a vehicle, includes a control unit configured to execute lane change assist control of the vehicle, and an acquisition unit configured to acquire highly accurate map information that contains location information within a lane. When the acquisition unit acquires the highly accurate map information that contains information regarding a road on which the vehicle is running, the control unit is configured to be capable of executing the lane change assist control, and when the acquisition unit does not acquire the highly accurate map information that contains the information regarding a road on which the vehicle is running, the control unit does not execute the lane change assist control.