How to Decode a VIN Number: What Every Character Means

Your VIN's 17 characters aren't random. Here's what each section means — and how to unlock the options behind them.

What a VIN is

A VIN (Vehicle Identification Number) is the 17-character code that uniquely identifies your car. It's stamped at the factory and never changes — and it's the key that unlocks your car's original factory equipment list.

The three parts of a VIN

• Characters 1–3 — WMI: the World Manufacturer Identifier — who built the car and where.
• Characters 4–9 — VDS: the Vehicle Descriptor Section — model, body, engine and (on many makes) the trim.
• Characters 10–17 — VIS: the Vehicle Identifier Section — model year, plant and the unique serial number.

What the VIN can't show on its own

Decoding the VIN's structure tells you the model, year and plant — but not the options the car was actually built with. For that, the VIN has to be matched against the manufacturer's build record. That's exactly what a build sheet does.

Get the full equipment list by VIN

Enter your VIN and we return the decoded factory options — every code turned into a plain-language feature.