Can I tell when my car was manufactured by VIN?

[DelJordan]

Yes, you can determine your car's model year by looking at the 10th character of its 17-digit Vehicle Identification Number (VIN). This character is the official “model year code.” However, this system is standardized and reliable primarily for vehicles built in or after 1981. For cars manufactured before 1981, VIN formats were inconsistent, making year identification through the VIN alone less straightforward.

The current 17-digit VIN format was mandated by the U.S. National Highway Traffic Safety Administration (NHTSA) in 1981. This standardization created a universal “language” for identifying vehicles. The VIN is logically divided into three sections: the World Manufacturer Identifier (WMI, positions 1-3), the Vehicle Descriptor Section (VDS, positions 4-9), and the Vehicle Identifier Section (VIS, positions 10-17). It is within this VIS that the 10th position is specifically reserved for the model year.

Decoding the 10th character requires a reference chart, as it uses a repeating cycle of letters and numbers. The codes began with “A” for 1980, but the modern, consistent cycle started with “B” for the 1981 model year and continued through numbers and letters, omitting I, O, Q, U, and Z to avoid confusion. After 2000, the cycle used numbers 1-9 for 2001-2009, then returned to letters with “A” for 2010. This 30-year cycle restarted with “A” for 2031.

For example, a 10th character of “G” indicates a 2016 model year vehicle, while a “5” indicates a 2005 model year. This table illustrates the recent cycles:

10th Character Code	Model Year	10th Character Code	Model Year
A	1980, 2010, 2031	L	1990, 2020, 2050
B	1981, 2011, 2032	M	1991, 2021
C	1982, 2012, 2033	N	1992, 2022
D	1983, 2013, 2034	P	1993, 2023
E	1984, 2014, 2035	R	1994, 2024
F	1985, 2015, 2036	S	1995, 2025
G	1986, 2016, 2037	T	1996, 2026
H	1987, 2017, 2038	V	1997, 2027
J	1988, 2018, 2039	W	1998, 2028
K	1989, 2019, 2040	X	1999, 2029
1	2001, 2031	Y	2000, 2030
2	2002, 2032
3	2003, 2033
4	2004, 2034
5	2005, 2035
6	2006, 2036
7	2007, 2037
8	2008, 2038
9	2009, 2039

A critical point is understanding “model year” versus “calendar year.” A model year is a manufacturer’s designated production period, often starting in the prior calendar year. A 2024 model year car could have been physically built in the summer or fall of 2023. The VIN’s 10th character will always show the model year (“4” for 2024), not the calendar year of assembly.

For pre-1981 vehicles, the VIN may not follow this rule. Some manufacturers placed year information in different positions or used proprietary formats. In these cases, consulting a marque-specific club, historical database, or the vehicle’s physical data plate is often necessary.

Always verify the VIN-derived information against the vehicle’s title, registration documents, and the manufacturer’s build date on the driver’s side door jamb sticker. This cross-referencing ensures accuracy, especially for registration, insurance, or purchasing parts.

[McFinn]

I just went through this when buying a used sedan last month. The seller said it was a 2015 model, but I wanted to be sure.

I found the VIN on the dashboard near the windshield and looked at the 10th character. It was an “F”. I checked a free VIN decoder website, and it confirmed “F” means 2015. That matched what he said.

I also checked the door jamb sticker, which had a manufacture date of 06/2014. That initially confused me, but then I learned that’s normal—a 2015 model is often built in mid-2014. So the VIN was right. It’s a quick, reliable check for any car from the last 40 years.

[DamianDella]

As a mechanic for over twenty years, I’ve used VINs to order the correct parts thousands of times. The 10th digit is the first thing I check for the year.

That one letter or number tells me the vehicle’s model year instantly, which is crucial because a part for a 2010 model might not fit a 2011, even if they look identical. The codes repeat every 30 years, so I’m always mindful of the context. A “G” on a classic truck in my shop is 1986, but on a newer SUV, it’s 2016.

For cars from the 90s onward, this system is gospel. If a customer brings in a pre-1980s car, that’s when we dig into factory manuals or call specialists, as the VIN rules weren’t set then.

[DeSimon]

You’re looking at a used car and the seller’s story seems a bit off. The VIN’s 10th digit is your best tool to verify the model year independently.

Here’s what to do: Locate the VIN. Count to the 10th character. Use your phone to search “[10th character] VIN year code” (e.g., “K VIN year”). You’ll see ‘K’ is 1989 or 2019. Which one fits the car’s overall condition and design?

This check takes 60 seconds and can reveal a serious discrepancy. A car advertised as a 2018 (code J) but showing a 2017 code (H) is a major red flag. It protects you from title washing or incorrect listings. Always pair this with a full, free VIN check online for the complete history.

[NolanMarie]

My interest is in classic American muscle cars, many built before the 1981 VIN standardization. For these vehicles, the answer is more nuanced.

With a 1970s or earlier car, the 10th-digit rule usually doesn’t apply. Manufacturers had their own systems. For instance, on some 1960s Fords, the year code might be the first digit of the sequential production number. On others, it’s embedded within the middle section.

To find the year, you need a model-specific decoding guide. I use published reference books from the Society of Automotive Historians or trusted marque club guides. You often cross-reference the VIN prefix with engine codes and body tags to pinpoint the exact model year.

It’s detective work, but that’s part of the fun. For any post-1980 vehicle, though, the universal 10th-digit code makes life much simpler for historians and owners alike.