A method for processing messages sent between multiple software applications in a vehicle comprises generating an outgoing message based on a received message. The received message includes an application generated message, a user generated message, or a sensor generated message in the vehicle. The method associates communication managers with software applications in the vehicle, and the communication managers include priority managers that assign a high priority value to messages that relate to vehicle safety, crash mitigation, collision threat, collision avoidance, or crash indication. The priority managers compare priority values of the outgoing messages and rank the importance of the outgoing messages. The method uses the communication managers to attach a message label to high priority messages labeling them as “new”. The new messages are immediately transmitted before the lower priority messages through the communication managers.