The structure at a glance
A modern VIN is 17 characters long. It never contains the letters I, O, or Q (they look like 1 and 0). It's split into three logical blocks:
- WMI — World Manufacturer Identifier (positions 1–3)
- VDS — Vehicle Descriptor Section (positions 4–9)
- VIS — Vehicle Identifier Section (positions 10–17)
Position by position
- 1 — Country of origin. 1/4/5 = USA, 2 = Canada, 3 = Mexico, J = Japan, K = Korea, W = Germany, S = UK, Y = Sweden/Finland, Z = Italy.
- 2 — Manufacturer. F = Ford, G = GM, H = Honda, T = Toyota, N = Nissan, etc.
- 3 — Vehicle type / division. Truck vs car vs bus, or brand division inside a group.
- 4–8 — Vehicle attributes. Body style, engine code, transmission, restraint system, trim. This is where "which engine did I actually get?" is answered.
- 9 — Check digit. A calculated digit that mathematically validates the other 16. Retyping a VIN wrong almost always fails this check.
- 10 — Model year. Uses a rolling letter/number code — for example, N = 2022, P = 2023, R = 2024, S = 2025, T = 2026.
- 11 — Assembly plant. Some plants have better long-term reliability records than others for the same model.
- 12–17 — Serial number. The unique production sequence for that plant.
Why it matters when you're buying
A five-second VIN scan tells you the engine, drivetrain, model year, and plant — before the seller can talk over you. If the door-jamb VIN doesn't match the dash VIN, walk away. If the check digit fails, someone typed it wrong (or worse).
Skip the manual decoding
Point Driveline at the VIN plate. In seconds you get the full decode, open NHTSA recalls, known year/trim issues, expected lifespan, and a maintenance baseline — free.