An mileage communication system for a vehicle, such as a trailer, is disclosed. Mileage data is communicated to a processor by a sensor. The processor calculates cumulative mileage and encodes the mileage data into a code, such as an ON-OFF code, that is capable of being communicated to an output device. The vehicle operator may activate a user interface that is capable of generating a request signal to be sent to the processor. Upon receipt of the request signal, the processor communicates the code to the output device. In response to the code from the processor, the output device communicates a visual or audible signal, such as an ON-OFF signal, that is capable of being received by the vehicle operator or other user. The signal corresponds to the cumulative mileage data.