A vehicle includes a plurality of controllers configured to control operation of at least one load and share information with each other; a communication module configured to perform communication between the at least one load and the plurality of controllers; and a plurality of connectors provided between the plurality of controllers, the at least one load, and the communication module, configured to connect the plurality of controllers, the at least one load, and the communication module. One of the plurality of controllers may transmit a preset number of times of communication signals to the other controller and the communication module when the information is not received for a predetermined time, store the number of times of reception of response signals as error information, and transmit the stored error information to the outside when receiving an error information transmission command from the outside.