an information managing device configured to obtain information associated with an update target controller from a wired updateable device in the vehicle, and to obtain information associated with at least one controller from the at least one controller;

a determining device configured to determine whether the at least one controller needs to be updated, based on the information associated with the update target controller and the information associated with the at least one controller; and

an updating device configured to:

determine whether the at least one controller is in an updateable state by identifying whether the at least one controller is in use, whether a storage space of the at least one controller is sufficient, and whether vehicle communication is connected; and

perform an update of the at least one controller, when the at least one controller is in the updateable state and the determining device determines that the update of the at least one controller is necessary based on the information associated with the update target controller, when wireless communication with an external update management server is impossible,

wherein the information associated with the update target controller includes a controller area network (CAN) ID, a firmware content, a software version, and an update sequence of the update target controller.