The error positions are indicated by ! in Suggested VIN. In the Possible values section, each pair of parenthesis indicate information about each error position in VIN . The Numeric value before the : indicates the position in error and the values after the : indicate the possible values that are allowed in this position Unused position(s): 4,8; The Model Year decoded for this VIN may be incorrect. If you know the Model year, please enter it and decode again to get more accurate information.