Communication Modules are networks in which vehicles communicate nodes, providing each other with information such as safety warnings and traffic information. They can be effective in avoiding accidents and traffic congestion. Vehicle communication is usually developed as a part of intelligent transportation systems. The main motivation for vehicle communication system is safety and eliminating the excessive cost of traffic collisions. The goal is to prevent accidents by allowing vehicles in transit to send position and speed data to one another over an ad hoc mesh network. Depending on how the technology is implemented, the vehicles driver may simply receive a warning should there be a risk of an accident. Module Only Modules will need to have an exact part match, please provide your exact part number Modules must be reset by a dealer before installing