A system and method of customizing a data retrieval and storage device for communication with a specific vehicle after the device is initially connected to the vehicle. The system includes a master database having communication information arranged by vehicle specific information, and an automotive scan tool having an incomplete set of preloaded communication information stored thereon. The automotive scan tool is configured to retrieve an electronic VIN from the vehicle and upload the electronic VIN to the master database. After receiving the electronic VIN, the master database identifies the specific communication information associated with the vehicle and communicates such information to the automotive scan tool to compliment the preloaded communication information.