Key Takeaways
- The 10th character in a 17-character VIN is the model year code, using numbers 0–9 and letters A–Y (skipping I, O, Q, X, Z).
- The year code repeats every 30 years, so a "5" could mean 2005 or 1985 — you need the vehicle's condition or other context to tell them apart.
- The 1st character (the country code) and the 10th character together help narrow down the actual year when the cycle creates ambiguity.
- VIN decoders and the National Highway Traffic Safety Administration (NHTSA) database can confirm the year if you are unsure about your reading.
Where the Year Code Sits in the VIN
A complete VIN has 17 characters. The 10th position — counting from left to right, starting at 1 — holds the model year. The first nine characters identify the manufacturer, the plant, and the vehicle type. The 10th character is the year. The remaining seven characters are the serial number specific to that individual vehicle.
For example, in the VIN 1HGCV41JXMN109186, the 10th character is X, which represents 2000. You do not need to decode anything else on the VIN to find the year — just locate position 10 and match it to the chart below.
The Year Code Chart
| Code | Year | Code | Year | Code | Year |
|---|---|---|---|---|---|
| Y | 2000, 1980 | A | 2010, 1990 | L | 2020, 2000 |
| 1 | 2001, 1981 | B | 2011, 1991 | M | 2021, 2001 |
| 2 | 2002, 1982 | C | 2012, 1992 | N | 2022, 2002 |
| 3 | 2003, 1983 | D | 2013, 1993 | P | 2023, 2003 |
| 4 | 2004, 1984 | E | 2014, 1994 | R | 2024, 2004 |
| 5 | 2005, 1985 | F | 2015, 1995 | S | 2025, 2005 |
| 6 | 2006, 1986 | G | 2016, 1996 | T | 2026, 2006 |
| 7 | 2007, 1987 | H | 2017, 1997 | V | 2027, 2007 |
| 8 | 2008, 1988 | J | 2018, 1998 | W | 2028, 2008 |
| 9 | 2009, 1989 | K | 2019, 1999 | X | 2029, 2009 |
Notice that the letters I, O, Q, X, and Z are not used in the year code. This keeps the code from being confused with numbers or other letters that look similar when printed or handwritten.
Handling the 30-Year Cycle Problem
Because the code repeats every 30 years, a single character can represent two different years. A "5" in the 10th position could mean 2005 or 1985. A "K" could mean 2019 or 1999. You need additional information to determine which one is correct.
The easiest way is to look at the vehicle itself. A 1985 car would show significant rust, wear, and outdated styling compared to a 2005 model. If you are looking at a VIN on a title, registration, or recall notice, the document itself usually states the year elsewhere. If you are examining a physical vehicle and the year code is ambiguous, the overall condition and design will tell you which decade it belongs to.
The first character of the VIN — the country code — can also help. Vehicles made before 1981 have a different VIN format (13 characters instead of 17), so if you are reading a 17-character VIN, it cannot be from the 1980s. That means a "5" must be 2005, not 1985.
Using the NHTSA Database to Confirm
The National Highway Traffic Safety Administration (NHTSA) maintains a free VIN decoder at safercar.gov. Enter the full 17-character VIN, and the database returns the manufacturer, model, model year, and other details. This tool is useful when you want to confirm your reading of the 10th character or when you are unsure whether a code represents the earlier or later year in the 30-year cycle.
The NHTSA database is also the official source for recalls. If you are looking up a VIN to check for open recalls, the year information from the decoder helps you search the recall database accurately. Many insurance companies and dealerships also offer free VIN decoders on their websites, though the NHTSA version is the most authoritative.
Why Manufacturers Use This System
The year code is part of the World Manufacturer Identifier (WMI) standard, set by the International Organization for Standardization (ISO). Using a single character instead of a full four-digit year saves space on the VIN and makes it easier to read on small metal plates. The 30-year cycle is long enough that most vehicles are scrapped or significantly aged before the code repeats, so confusion is rare in practice.
The system has been in place since 1981, when the 17-character VIN format became mandatory in the United States. Every vehicle sold in the U.S. since then uses the same position and code set for the model year, making it a reliable standard across all manufacturers.
What to Do If You Cannot Read the 10th Character
VINs are stamped on the dashboard (visible through the windshield on the driver's side), on the driver's door jamb, and on the engine block. If the character is worn, faded, or damaged, try looking at the VIN in a different location. The dashboard VIN is usually the easiest to read.
If all visible VINs are illegible, your vehicle's title, registration, insurance card, or maintenance records will show the year. You can also contact your vehicle's manufacturer with the VIN, and they can decode it for you. If you are buying a used vehicle and the seller cannot provide the year, that is a red flag — legitimate sellers always have documentation.
Frequently Asked Questions
Can the 10th character be a number or does it have to be a letter?
It can be either. Numbers 0–9 and letters A–Y (excluding I, O, Q, X, Z) are all valid year codes. The code you find in position 10 will be one of these 30 characters.
What if my VIN is shorter than 17 characters?
Vehicles made before 1981 have 13-character VINs and use a different year format. If your VIN is shorter than 17 characters, the vehicle is a classic or antique car, and you should refer to the manufacturer's documentation or a classic car registry to find the year.
Does the year code tell me when the car was actually built?
The year code represents the model year, not the build date. A 2024 model year car might have been built in late 2023. The exact build date is not encoded in the VIN — that information is usually found in the vehicle's service records or by contacting the manufacturer.
Can I use the year code to check for recalls?
Yes. Once you know the year from the 10th character, you can search the NHTSA recall database at safercar.gov using the year, make, and model. The year code is accurate enough for recall searches, though the NHTSA decoder will confirm the exact year if the 30-year cycle creates ambiguity.