Vehicle control device and external device configured to transmit and receive information to and from vehicle control device

An external device configured to transmit and receive information to and from a controller configured to autonomously drive a vehicle based on an instruction from an autonomous driving kit, wherein the external device is configured to

• receive first driving characteristic data and second driving characteristic data from the controller of the vehicle, the first driving characteristic data being data indicating that the vehicle has entered an intersection with a traffic light while the traffic light ahead of the vehicle is either yellow or red, and the second driving characteristic data being data indicating that the vehicle has entered an intersection with a traffic light while the traffic light ahead of the vehicle is green,
• generate driving characteristic information based on the first driving characteristic data and the second driving characteristic data, the driving characteristic information being information indicating a driving characteristic of the autonomous driving kit and including first information and second information, the first information being information indicating that the vehicle is highly likely to enter an intersection with a traffic light when the traffic light is either yellow or red, and the second information being information indicating that the vehicle is unlikely to enter an intersection with a traffic light when the traffic light is either yellow or red, and
• transmit the driving characteristic information to the controller or a controller of another vehicle that is autonomously driven by the autonomous driving kit.