What item is NOT included as a digit on the vehicle identification number (VIN)?

The vehicle identification number (VIN) is a standardized 17-character code that provides important information about a vehicle, including its origin, make, model, and other specifications. Each segment of this code contains specific details relevant to the vehicle's identity.

The vehicle build month is not included in the VIN. While the VIN provides vital information such as the model year, the manufacturer's code, and a sequential production number, it does not specify the month in which the vehicle was built. Instead, the model year is encoded within the VIN, along with the manufacturer's code which identifies the factory and the specific manufacturer, and the sequential production number which indicates the unique sequence of that specific vehicle's production.

In summary, while the VIN contains critical identifiers for the vehicle, the build month is not one of those identifiers.