10th Digit VIN Chart: What the Model Year Code in Your VIN Means

Every vehicle sold in the United States carries a 17-character Vehicle Identification Number (VIN). Each position in that string of letters and numbers encodes specific information about the vehicle — and the 10th digit has one job: it tells you the model year.

Understanding what the 10th digit means is useful when buying a used car, verifying registration paperwork, checking recall eligibility, or simply confirming what year a vehicle was actually manufactured for sale — which isn't always the same as the calendar year you bought it.

What the 10th Digit of a VIN Represents

The 10th position in a VIN is the model year code. It follows a standardized system established by the National Highway Traffic Safety Administration (NHTSA) and used by all manufacturers selling vehicles in the U.S. since 1981.

This digit is not the same as the production year or the year you purchased the vehicle. A car built in late 2023 for the 2024 model year will carry a 2024 model year code in the 10th position — even if it rolled off the assembly line and was titled in 2023.

10th Digit VIN Model Year Chart 📋

The model year codes cycle through a defined set of letters and numbers. The system skips the letters I, O, Q, U, and Z to avoid confusion with numerals 1, 0, and other characters.

The cycle restarts every 30 years. That's why B appears for both 1981 and 2011, C for both 1982 and 2012, and so on. For vehicles made after 2010, context from other VIN positions — particularly the 7th digit (restraint systems) and the manufacturer prefix — helps distinguish the era when the codes overlap.

Why the Model Year Code Matters

The model year encoded in your VIN affects more than trivia:

• Recall eligibility: NHTSA recall searches are often filtered by model year. Using the wrong year could cause you to miss — or falsely flag — an applicable recall.
• Parts compatibility: Many components are model-year specific. A mechanic or parts retailer pulling up your vehicle by VIN uses that 10th digit to filter the correct fitment.
• Registration and title paperwork: State DMVs record model year on the title. If there's a discrepancy between the model year on your title and the 10th digit of your VIN, that can create complications during title transfers or registration renewals.
• Insurance rating: Insurers use model year as a factor in calculating premiums. The year on your policy should match your VIN.
• Emissions and inspection requirements: Some states apply different inspection standards based on model year. A vehicle that reads as a newer model year may face different testing thresholds than an older one.

Where to Find the 10th Digit on Your VIN

Your full 17-digit VIN appears in several places:

• Dashboard (driver's side): Visible through the windshield at the base, near the A-pillar
• Driver's door jamb sticker: Usually on a white label near the door latch
• Title and registration documents
• Insurance card
• Odometer disclosure statement (on used vehicle transactions)

Count carefully from left to right — the 10th character is the model year. The first three digits are the World Manufacturer Identifier (WMI), positions 4–8 describe vehicle attributes, position 9 is a check digit, and position 10 is model year. Position 11 is the plant code, and positions 12–17 are the sequential production number.

Variables That Can Create Confusion 🔍

A few situations make the 10th digit interpretation less straightforward:

Pre-1981 vehicles don't follow this standardized system. VINs before 1981 varied by manufacturer and weren't regulated to a uniform 17-character format, so the model year rules above don't apply.

Overlapping codes in the 30-year cycle mean a "B" could be 1981 or 2011. For vehicles that could plausibly be either, checking the full VIN through NHTSA's free VIN decoder at VIN.NHTSA.dot.gov will resolve the ambiguity using the full context of all 17 digits.

Gray market or imported vehicles may carry VINs that don't follow U.S. standards. In those cases, the 10th digit may not reliably encode model year the same way.

Manufacturer model year vs. calendar year continues to trip people up. If your paperwork shows a title year different from what the VIN decodes, it's worth verifying which is correct before completing a sale or registration — because how states treat that discrepancy varies.

The 10th digit is one of the easier pieces of VIN information to decode on your own. What gets more complicated is knowing how your specific state's DMV, your insurer, or the manufacturer's recall database interprets and uses that model year code in your particular situation.