The first three digits in Cadillac VIN decoding are known as the World Manufacturer Identifier. The first digit expresses the manufacturing country or the final country of assembly. If a car is manufactured in the United States, for example, the VIN will begin with a 1, 4 or 5.
The second digit reveals the manufacturer, and since Cadillac is manufactured by General Motors, the second identifier will be a G. The third digit will show the manufacturing division or the type of vehicle in question. For Cadillac, the first three digits will be 1G6.
The fourth and fifth digits together reveal the model of the vehicle. For example, a Cadillac CTS will be identified as DA.
The eighth digit is the engine type of the vehicle, the tenth digit is the model year, the eleventh digit reveals the assembly plant, while digits twelve through seventeen is the specific car’s serial number.