A vehicular vision system includes a side-mounted camera mounted at a side portion of vehicle and having a field of view exterior of the vehicle. The side-mounted camera includes a video output configured for transmitting to a control a stream of video captured by an image sensor of the side-mounted camera. The stream of video is transmitted to the control via a serial data bus linking the side-mounted camera to the control. The control includes a serial data interface for communication with at least one electronic device of the vehicle. The control sends instructions to the side-mounted camera via the serial data bus linking the side-mounted camera to the control. The control receives messages from the at least one electronic device of the vehicle via the serial data interface.