Key Takeaways
- The 10th character of any VIN is a letter that represents the model year, using a code that repeats every 30 years.
- The year code runs A through Y (skipping I and O), so "A" is 2010, "M" is 2022, and "Y" is 2040.
- A VIN from 1980 to 2009 uses the same letter code, so you must know the vehicle's approximate age to avoid confusing a 1990 "A" with a 2010 "A".
- The model year in the VIN is when the vehicle was manufactured, not when it was sold, so a 2024 model might have been built in late 2023.
Where the Year Code Sits in the VIN
A VIN is always 17 characters long. Count from left to right: the first three characters identify the manufacturer and country, characters four through eight describe the vehicle type and features, the ninth character is a check digit used to verify the VIN is real, and the 10th character is your year code. The remaining seven characters are the serial number unique to that specific vehicle.
If you have a physical VIN, you can find it on the driver's side dashboard (visible through the windshield), on the driver's side door jamb, or on the vehicle registration and title documents. Online VIN decoders will also show you which position holds the year once you enter the full VIN.
The Year Code Chart for 2010 to 2040
| Year Code Letter | Model Year |
|---|---|
| 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 |
| W | 2028 |
| X | 2029 |
| Y | 2030 |
Notice that the letters I and O are skipped. This is intentional — manufacturers avoid these letters because they look too similar to the numbers 1 and 0, which could cause confusion when reading a VIN by hand or over the phone.
After 2030, the cycle continues into the 2030s and 2040s using the same letters. The letter "A" appears again for 2040, then the pattern repeats. This 30-year cycle has been in use since 1980, so a VIN with the letter "A" could represent either 1980, 2010, or 2040 depending on the vehicle's actual age.
Why the Year Code Matters for Recalls and Parts
Manufacturers issue recalls based on model year, not just the vehicle make and model. A recall for a 2019 Honda Civic (year code "K") may not explore to a 2020 Honda Civic (year code "L"), even though they are nearly identical. When you check for recalls on the National Highway Traffic Safety Administration (NHTSA) website or with your dealer, you will need the correct model year to see which recalls affect your specific vehicle.
Parts compatibility also depends on the model year. An engine component, transmission part, or electrical module from a 2018 model may not fit a 2017 model, even if the VIN looks similar otherwise. Knowing the exact year from the VIN helps you order the correct replacement parts and avoid costly mistakes.
Model Year Versus Build Date
The model year in the VIN is not the same as the exact date the vehicle rolled off the assembly line. A 2024 model year vehicle might have been built in September 2023, and a 2025 model might start production in July 2024. Manufacturers assign model years based on when production begins for that generation, not when individual units are completed.
If you need the exact build date — the specific month and day — that information is usually encoded in the VIN's serial number (the last seven characters), but decoding it requires manufacturer-specific documentation. Your dealer can pull the exact build date from their system using the full VIN.
Decoding a VIN from 1980 to 2009
Vehicles built between 1980 and 2009 use the same letter code as 2010 to 2040. A 1980 model has the letter "A" in the 10th position, just like a 2010 model. To tell them apart, you must look at other parts of the VIN or know the vehicle's approximate age from its condition, mileage, or registration history.
The first character of the VIN can help narrow this down. Vehicles built before 2000 typically have a number (1 through 9) in the first position, while most vehicles from 2000 onward have a letter. However, this is not a hard rule, so the safest approach is to check the registration documents or ask the seller when the vehicle was manufactured.
Common Mistakes When Reading the Year Code
The most frequent error is counting the wrong character as the 10th position. Some people start counting from zero instead of one, or they miscount the spaces. Always count carefully: position 1, 2, 3, and so on until you reach position 10. If you are unsure, use an online VIN decoder to highlight which character is the year code.
Another mistake is assuming the year code tells you when the vehicle was sold. A dealer might sell a 2024 model in early 2025, so the sale date and model year are different. The model year reflects when production started, not the transaction date.
Frequently Asked Questions
What does it mean if the 10th character is a number instead of a letter?
If the 10th position contains a number, the VIN may be invalid or the vehicle may be from outside North America. The standard VIN format used in the United States, Canada, and Mexico always uses a letter in the 10th position. If you see a number there, double-check that you are reading the correct position and that the VIN is complete and accurate.
Can I find the model year anywhere else on the vehicle?
Yes. The model year often appears on the vehicle registration, title, insurance documents, and the door jamb label. However, the VIN is the most reliable source because it is standardized across all manufacturers. Other documents can have errors or may refer to the year the vehicle was registered rather than manufactured.
Does the model year affect insurance rates?
Yes, insurance companies use the model year to calculate premiums because newer vehicles often have better safety features and lower repair costs. The year code in the VIN is one way insurers verify the vehicle's age. Older vehicles may have lower premiums but higher maintenance costs, while newer vehicles cost more to insure but may have better reliability.
What if I have a VIN from a vehicle made outside the United States?
The 10th character year code is used for vehicles sold in North America (United States, Canada, Mexico). Vehicles from Europe, Asia, or other regions may use different VIN formats or year codes. If you are unsure, contact the manufacturer or a dealer that specializes in imported vehicles.