A vehicle includes a VP, the VP including a specific system, an ADK attachable to and removable from the VP, the ADK giving an instruction for autonomous driving, a main communication bus, a sub communication bus, a main VCIB configured to communicate with the ADK through the main communication bus, the main VCIB giving a control instruction to the specific system in accordance with an instruction from the ADK, and a sub VCIB configured to communicate with the ADK through the sub communication bus, the sub VCIB giving a control instruction to the specific system in accordance with an instruction from the ADK. When the VP has a malfunction, the main VCIB outputs to the ADK, information for identification that allows identification of a capability value of the specific system (S214), whereas the sub VCIB outputs the information for identification to the ADK (S214).