VIN Decoding

How to Read a VIN: What Each of the 17 Characters Means

A practical guide to decoding a 17-character VIN, including how to find the manufacture year, country of origin, engine and factory.

CarsHistoryCheck Team28 Oct 20266 min read

The three parts of a VIN

Every modern car has a unique 17-character Vehicle Identification Number. It is split into three parts, and each tells you something different about the car.

  • Characters 1–3 (WMI): the manufacturer and where it was built
  • Characters 4–9 (VDS): the model, body style, engine and a check digit
  • Characters 10–17 (VIS): model year, assembly plant and the production serial number

How to check the manufacture year

The tenth character is the model year. Letters run from A (2010) to Y (2030), skipping I, O, Q, U and Z, and digits 1 to 9 cover 2031 onward as well as 2001 to 2009. So a tenth character of "L" means 2020 and "M" means 2021. The eleventh character identifies the assembly plant.

Note that the VIN gives the model year, which can differ from the year the car was actually built or first registered.

Why VINs never contain I, O or Q

The letters I, O and Q are excluded because they are easily mistaken for 1 and 0. If a number you were given contains one of them, it was probably copied wrongly or is not a genuine VIN.

Decoding is only the first step

A decoder confirms that the car matches the listing. To learn what happened to the car afterwards, including accidents, auction sales and title brands, you need a vehicle history report built on the same VIN.

Frequently Asked Questions

Which character of the VIN shows the year?

The tenth character is the model year. For example, L is 2020 and M is 2021.

Is a chassis number the same as a VIN?

On modern cars, yes. Some older and Japan-domestic cars use shorter chassis numbers that are not 17-character VINs.

Can I find a car’s accident history from the VIN alone?

A decode shows factory specifications only. Accident and auction history comes from a vehicle history report that uses the VIN to search records.

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VIN decoderCheck manufacture yearChassis number decoderHow to read a VIN

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