Every vehicle sold in the United States since 1981 has a standardized 17-character Vehicle Identification Number (VIN). That string of letters and numbers is not random — every position encodes specific information about your vehicle according to the ISO 3779 international standard.
You can decode your VIN instantly using MyOBDCode's free VIN decoder, or read on to understand what each section means.
Where to find your VIN
Three locations on every vehicle:
- Dashboard (driver side) — visible through the windshield at the base of the dashboard. Most common location.
- Driver-side door jamb sticker — on the sticker inside the door frame. Also shows tire pressure and paint code.
- Vehicle title and registration — any official document will have the full VIN.
The 17-character breakdown
Characters 1–3: World Manufacturer Identifier (WMI)
The first three characters identify the manufacturer and country of origin.
- 1, 4, or 5 — United States
- 2 — Canada
- 3 — Mexico
- J — Japan
- K — South Korea
- W — Germany
- S — United Kingdom
The second and third characters narrow it down to the manufacturer. For example: 1HG = Honda (USA), 4T1 = Toyota (USA), WBA = BMW (Germany), 5YJ = Tesla.
Characters 4–8: Vehicle Descriptor Section (VDS)
These five characters describe the specific vehicle attributes:
- Position 4–5: Vehicle line, series, and body style
- Position 6: Restraint systems (airbags, seatbelts)
- Position 7–8: Vehicle line and engine type
The exact meaning of each character in this section varies by manufacturer — Honda uses a different encoding than Ford. This is why you need a VIN decoder rather than trying to read it manually.
Character 9: Check digit
Position 9 is a mathematically calculated check digit used to verify the VIN is valid and not counterfeit. It's calculated using a specific algorithm across all other VIN characters. If the check digit doesn't match, the VIN has been altered or is invalid.
Character 10: Model year
This is one of the most useful positions. The model year is encoded as a single letter or number:
- A = 2010, B = 2011, C = 2012, D = 2013, E = 2014
- F = 2015, G = 2016, H = 2017, J = 2018, K = 2019
- L = 2020, M = 2021, N = 2022, P = 2023, R = 2024
- S = 2025, T = 2026, V = 2027
Note: I, O, Q, U, and Z are never used (to avoid confusion with 1, 0, and other characters).
Character 11: Assembly plant
Identifies which manufacturing facility built the vehicle. This can matter for quality control issues — some recalls are specific to vehicles built at certain plants.
Characters 12–17: Vehicle serial number
The final six characters are the manufacturer's sequential production number for this specific vehicle. This, combined with the WMI, makes every VIN globally unique.
Why your VIN matters beyond identification
Your VIN is the key to:
- Open recall lookup — NHTSA tracks recalls by VIN range. A recall that affects "2022 Ford F-150s built between date X and date Y" uses the serial number to identify exactly which trucks are affected.
- Vehicle history reports — Accidents, title brands, odometer readings, and ownership history are all linked to the VIN.
- Parts lookup — Dealers use the VIN to ensure you get the correct parts for your exact engine and trim configuration.
- Insurance verification — Your insurer uses the VIN to confirm what's actually being insured.
Decode your VIN now at myobdcode.com/vin-lookup — free, instant, no sign-up required.