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Guide

How to decode your VIN: model year, maker and more

What the 17 characters of your VIN mean, how to read the model year, and why it matters when you look for a manual.

Updated October 25, 2026

Your vehicle identification number, or VIN, is a 17-character code that tells you who built your car, where, and for which model year. It is also the most reliable way to find the right manual, because cars that look the same can differ in engine, year or build.

Where to find your VIN

  • on the dashboard, visible through the lower corner of the windshield on the driver’s side
  • on the label in the driver’s door jamb
  • on your registration, title and insurance documents

How the 17 characters break down

Every car and light truck built for the US since the 1981 model year uses the same 17-character format. The letters I, O and Q are never used, so they cannot be confused with the numbers 1 and 0.

PositionsWhat they tell you
1-3The world manufacturer identifier: the maker and the country or region of manufacture
4-8The vehicle descriptor: model, body style, restraint system and often the engine, coded differently by each maker
9A check digit, used to confirm the VIN is valid
10The model year
11The assembly plant
12-17The production sequence number

Where it was built: the first character

The first character shows the country or region of manufacture. A few common ones: 1, 4 and 5 for the United States, 2 for Canada, 3 for Mexico, J for Japan, K for South Korea and W for Germany.

The model year: the 10th character

The 10th character is the model year, which is not always the year the car was registered. The code repeats every 30 years, so A means 1980 or 2010 depending on the car’s age.

CodeYearCodeYear
A2010J2018
B2011K2019
C2012L2020
D2013M2021
E2014N2022
F2015P2023
G2016R2024
H2017S2025

Model years 2001 to 2009 use the numbers 1 to 9, and 2026 is T.

Decode it for free

The US National Highway Traffic Safety Administration runs a free VIN decoder that shows the information the manufacturer reported for your VIN, including the build plant. You can also check your VIN for open safety recalls on NHTSA’s recalls page.

Why it matters for manuals

Specifications can change between model years and even partway through one. Matching the manual to your VIN’s model year and engine means the fuse layout, fluid capacity or procedure you follow is the one for your car. Once you know them, find your owner’s manual or check our answer pages.

Doing the job yourself?

The workshop manual for your car has the full procedure, the torque specs and the wiring diagrams.

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