How to Read a VIN Number
A Vehicle Identification Number (VIN) is a 17-character code that serves as a fingerprint for every car, truck, and SUV on the road. Each character carries specific meaning. This guide breaks down every position so you can read any VIN at a glance.
VIN Structure at a Glance
The Three Sections of a VIN
Every VIN is divided into three distinct sections defined by ISO standards 3779 and 3780. Understanding these sections is the first step to reading any VIN.
1. World Manufacturer Identifier (WMI) - Positions 1 to 3
The WMI tells you where the vehicle was made and who made it. The first character identifies the country of manufacture. For example, vehicles built in the United States start with 1, 4, or 5. Canadian vehicles start with 2, and Mexican vehicles with 3. Japan uses J, Germany uses W, South Korea uses K, and the United Kingdom uses S.
The second character identifies the manufacturer. G stands for General Motors, F for Ford, T for Toyota, H for Honda, and so on. The third character narrows things further, specifying the vehicle type or the division within the manufacturer. Together, these three characters let you immediately identify the origin and maker of any vehicle.
2. Vehicle Descriptor Section (VDS) - Positions 4 to 8
The VDS encodes vehicle-specific attributes. These five characters describe the body style, engine type, model line, series, and restraint system. The exact meaning of each position varies by manufacturer because automakers have some flexibility in how they assign these codes.
For example, one manufacturer might use position 4 for the body type and position 5 for the engine, while another reverses that order. This is why a VIN decoder tool is so valuable: it knows the encoding scheme for every manufacturer and can translate these positions into plain language.
3. Vehicle Identifier Section (VIS) - Positions 9 to 17
The VIS starts with the check digit at position 9. This is a mathematically calculated value used to verify the entire VIN is valid. It helps detect typos and fraudulent VINs. The check digit can be any number from 0 through 9, or the letter X (which represents 10).
Position 10 indicates the model year. A rotating system of letters and numbers is used, cycling through the alphabet (skipping I, O, Q, U, and Z) and digits. For instance, R represents 2024, S represents 2025, and T represents 2026. Position 11 identifies the assembly plant. The final six positions (12 through 17) are the sequential production number, a unique serial assigned to the vehicle as it comes off the assembly line.
Complete VIN Position Reference
Use this table as a quick reference for each position in a 17-character VIN.
| Position | Meaning | Details |
|---|---|---|
| 1 | Country of Origin | 1 = USA, 2 = Canada, J = Japan, W = Germany, K = South Korea |
| 2 | Manufacturer | G = General Motors, F = Ford, T = Toyota, H = Honda, B = BMW |
| 3 | Vehicle Type / Division | Identifies the vehicle type (passenger car, truck, SUV) or the specific division within the manufacturer |
| 4 - 8 | Vehicle Attributes (VDS) | Body style, engine type, model line, series, and restraint system. Meaning varies by manufacturer |
| 9 | Check Digit | A calculated value (0-9 or X) used to detect invalid or fraudulent VINs |
| 10 | Model Year | R = 2024, S = 2025, T = 2026, V = 2027 |
| 11 | Assembly Plant | A code assigned by the manufacturer for the factory location |
| 12 - 17 | Sequential Production Number | A unique serial number assigned to each vehicle on the production line |
VIN Year Chart — Model Year Code (10th Digit)
The 10th character of a VIN encodes the model year. The chart below covers every code from A (1980) through 9 (2009), then repeating from A (2010) to 9 (2039). Because the code runs on a 30-year cycle, each character maps to two years 30 years apart — for example, R means 1994 and 2024 — so use the vehicle's body style and condition to tell which cycle applies. Letters I, O, Q, U, Z and the digit 0 are never used.
| VIN Code | Model Year | Model Year (repeat) |
|---|---|---|
| A | 1980 | 2010 |
| B | 1981 | 2011 |
| C | 1982 | 2012 |
| D | 1983 | 2013 |
| E | 1984 | 2014 |
| F | 1985 | 2015 |
| G | 1986 | 2016 |
| H | 1987 | 2017 |
| J | 1988 | 2018 |
| K | 1989 | 2019 |
| L | 1990 | 2020 |
| M | 1991 | 2021 |
| N | 1992 | 2022 |
| P | 1993 | 2023 |
| R | 1994 | 2024 |
| S | 1995 | 2025 |
| T | 1996 | 2026 |
| V | 1997 | 2027 |
| W | 1998 | 2028 |
| X | 1999 | 2029 |
| Y | 2000 | 2030 |
| 1 | 2001 | 2031 |
| 2 | 2002 | 2032 |
| 3 | 2003 | 2033 |
| 4 | 2004 | 2034 |
| 5 | 2005 | 2035 |
| 6 | 2006 | 2036 |
| 7 | 2007 | 2037 |
| 8 | 2008 | 2038 |
| 9 | 2009 | 2039 |
Note: the modern 17-character VIN became mandatory for the 1981 model year, so A = 1980 only appears on a handful of early-adopter vehicles.
Characters Never Used in a VIN
VINs never contain the letters I, O, or Q. These characters were excluded from the standard because they can be easily confused with the numbers 1 and 0. If you see any of these letters in what claims to be a VIN, the number is either misread or fraudulent. This rule has been in effect since the 17-character VIN standard was adopted in 1981.
Why Knowing How to Read a VIN Matters
Understanding VIN structure empowers you in several important ways. When buying a used car, you can verify that the VIN on the dashboard matches the one on the title and door jamb. Discrepancies can indicate a stolen vehicle or one that has been rebuilt from parts of multiple cars (known as a "cloned" VIN).
You can also use the model year digit to confirm the seller is representing the correct year, and the country-of-origin digit to verify where the vehicle was actually manufactured. Many buyers assume a vehicle with a domestic brand name was built domestically, but the VIN reveals the truth.
For the most complete picture, pair your VIN reading skills with a comprehensive VIN check. Our tool decodes every position and pulls in additional data including full specs, equipment lists, recall information, and market values.
VIN Reading FAQ
What does the 10th digit of a VIN tell you?+
The 10th digit of a VIN is the model-year code. It uses a standardized letter or number that runs on a 30-year cycle: A = 1980, B = 1981, and so on up to Y = 2000, then 1 = 2001 through 9 = 2009, after which the letters repeat (A = 2010, B = 2011...). Because each code maps to two years 30 years apart, you confirm the cycle using the vehicle's body style and overall condition. The letters I, O, Q, U, Z and the digit 0 are never used.
What is the WMI in a VIN?+
The WMI, or World Manufacturer Identifier, is the first three characters of a VIN. Position 1 identifies the country of manufacture (1, 4, or 5 = United States; 2 = Canada; 3 = Mexico; J = Japan; W = Germany; K = South Korea; S = United Kingdom). Position 2 identifies the manufacturer (G = General Motors, F = Ford, T = Toyota, H = Honda). Position 3 indicates the vehicle type or the manufacturer's division.
What characters are never used in a VIN?+
A VIN never contains the letters I, O, or Q because they are too easily confused with the numbers 1 and 0. In the 10th-position model-year code, the letters U and Z and the digit 0 are also skipped. If a 17-character VIN contains an I, O, or Q, it has been misread or is fraudulent — every legitimate VIN since the 1981 standard avoids those three letters entirely.
What is the check digit in a VIN?+
The check digit is the 9th character of a VIN. It is a single value from 0 to 9, or the letter X (representing 10), calculated from all the other characters using a weighted mathematical formula. Its only purpose is to verify the VIN is internally consistent: if someone alters or mistypes a character, the check digit will no longer match, flagging the VIN as invalid. It is mandatory on all vehicles sold in North America.
How long is a VIN and when did the 17-character standard start?+
A modern VIN is exactly 17 characters long. The standardized 17-character format became mandatory for all vehicles manufactured for the 1981 model year and later, defined by ISO standards 3779 and 3780 and the U.S. National Highway Traffic Safety Administration. Vehicles built before 1981 used shorter, non-standardized VINs that varied by manufacturer and ranged from 11 to 17 characters.
What do the 4th through 8th VIN characters mean?+
Characters 4 through 8 form the Vehicle Descriptor Section (VDS). These five positions encode the vehicle's attributes — body style, engine type, model line, series, and restraint (safety) system. Unlike the country and year codes, the exact meaning of each VDS character is defined by the individual manufacturer, so the same letter can mean different things across brands. Decoding the VDS fully usually requires the manufacturer's reference or a VIN decoder tool.
Where can I find the VIN on a vehicle?+
The most common place to find a VIN is on the lower-left corner of the dashboard, visible through the windshield from outside the car. It also appears on a sticker or plate in the driver's-side door jamb, on the vehicle title and registration, and on the insurance card. On many vehicles the VIN is additionally stamped on the engine block and the firewall. Always confirm the dashboard VIN matches the title to rule out a cloned or stolen vehicle.
Can you tell a car's age from the VIN?+
Yes. The 10th character of the VIN reveals the model year directly — for example, R = 2024, S = 2025, T = 2026. Because the code repeats on a 30-year cycle, that single character could indicate either of two years 30 years apart, so you confirm the correct one using the vehicle's design, features, and condition. The model year is the most reliable single piece of age information encoded in a VIN.