The bottom line: A VIN (vehicle identification number) is the 17-character code that identifies one vehicle. Every car, truck and motorcycle built since the early 1980s has one, and it records who made the car, in which country, its model year and the plant that built it.
You’ll find it on the dashboard, read through the windshield on the driver’s side, on the label in the driver’s door frame, and on your title and registration card.
If you’re selling, the VIN goes on your listing and your bill of sale. A buyer uses it to check the car’s history, so run the same check before you list.
Whether you’re selling privately or to a dealer, read the VIN on your title against the one on the car, character by character, before the buyer does.
Automated assistant: general info, not legal advice
Answers come from our state paperwork data and published guides. Confirm anything binding with your state DMV.
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What Is a VIN Number?
A VIN, or vehicle identification number, is a code of 17 letters and numbers that identifies one vehicle. Federal rules have required one on cars, trucks, buses, trailers and motorcycles since the early 1980s, and no two vehicles built within 30 years of each other may share one.
The letters I, O and Q are never used, so if you think you’re reading one while copying a VIN, it’s a 1 or a 0.
The same code is on the car, the title and the registration. That’s how a buyer checks that the car in front of them is the one on the paperwork.
Where to Find Your VIN
On a car, SUV or light truck, the VIN is on a small plate at the bottom of the windshield on the driver’s side. Federal rules place it so someone standing outside the car can read it through the glass, so stand by the driver’s door and look down at the corner where the dashboard meets the windshield.
The second place is the label in the driver’s door frame: open the door and look at the edge of the body where it latches. The label also gives the month and year the car was built, which a buyer may ask about.
Away from the car, it’s printed on your title and on your registration card.
What Each Part of a VIN Means
The 17 characters fall into three groups: who made the car, what it is, and which one it is.
- 1 to 3ManufacturerWho made the car, and in which country
- 4 to 8Vehicle descriptionBody style, engine and model line
- 9Check digitCatches a VIN copied wrong
- 10Model yearThe code repeats every 30 years
- 11Assembly plantWhich plant built the car
- 12 to 17Serial numberUnique to this car
Example VIN. Characters 1 to 3 are the World Manufacturer Identifier (WMI), 4 to 9 the Vehicle Descriptor Section (VDS), 10 to 17 the Vehicle Identifier Section (VIS).
Positions 1 to 3: Who Made It
The first character is the country the car was built in, and the next two name the maker and the type of vehicle. A VIN that starts with 1, 4 or 5 belongs to a car built in the United States.
Positions 4 to 9: What It Is
Positions 4 to 8 describe the vehicle: its model line, body type and engine. Each manufacturer sets its own codes for them, so the same character means different things on two brands.
Position 9 is a check digit, worked out from the other characters by a fixed formula. It exists to catch a VIN that was copied wrong, so if a decoder or a form rejects the VIN of a car built since the early 1980s, read each character again.
Positions 10 to 17: Which One It Is
Position 10 is the model year, position 11 the plant that built the car, and the last six the production number that makes this car unique.
The year codes repeat every 30 years, so an A in position 10 means 1980 or 2010. On a car, SUV or light truck, position 7 settles it: a number there means 1980 to 2009, and a letter means 2010 or later. In the example VIN, 1HGCM82633A004352, the 2 in position 7 and the 3 in position 10 make it a 2003.
You don’t have to work it out by hand: NHTSA’s VIN decoder shows what a VIN encodes, including the plant and country that built the car.
Using Your VIN When You Sell
Check It Against Your Title
Before you list the car, read the VIN on your title against the one on the windshield, character by character. If they differ, ask your DMV how to correct the title before you sell, because the buyer registers the car under the VIN on that title.
Run a History Report Before You List
A buyer will look up your VIN, so see what they’ll find first. NICB’s VINCheck is free and shows whether participating insurers have reported the car stolen and not recovered, or as salvage or flood damaged. It isn’t a full history: a VinAudit report costs $9.99 and adds title brands, odometer readings and accident records.
If a report shows an accident or a branded title, have the repair invoices and your maintenance records ready, because the buyer will have seen it too. What to tell them is in our guide to selling a damaged car.
The VIN is also how you check the car for open recalls.
Put It in Your Listing
Put the VIN in your ad, so a buyer can run their own check before they come to see the car.
Type it carefully on a paid listing. Autotrader won’t let you change the VIN once you’ve bought the ad, so a wrong one means deleting the listing and paying again. eBay Motors wants a VIN its decoder recognizes; if it doesn’t, you put the VIN in the description with the reason.
On the Bill of Sale
The VIN goes on the bill of sale. Copy it from the car rather than from memory, one character at a time.
If the VIN Plate Is Damaged
Don’t repair or replace it yourself. Removing or altering a VIN is a federal crime carrying up to five years in prison, and the law exempts only a repairer who has to remove it to do the repair, and a replacement made under state law.
Ask your DMV how it checks or replaces a damaged VIN before you sell, and give the buyer the paperwork it gives you.
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Frequently Asked Questions
Should I give my VIN to potential buyers?
Yes, to a buyer or a quote form. Anyone walking past can read it through your windshield, so sharing it gives away nothing new, and a buyer who can’t check the car’s history has a reason to walk away.
Can someone steal my car with just the VIN?
No. The VIN scam to know about is cloning: a thief copies the VIN from a legally owned car, makes a fake VIN tag and papers, and puts them on a stolen car of the same make and model to sell it. Your car stays with you; it’s the person who buys the clone who loses, because that car is never legally theirs.
Does a VIN reveal if my car has a lien on it?
A paid report can: VinAudit’s includes an open lien check. If you still owe money on the car, the lender has to be paid off before the title can pass to the buyer, and our loan guide covers how that fits into the sale.
Article Update History
Every claim checked against its source: the federal VIN rules (17 characters, the check digit, the model-year code), where the VIN is on the car and its paperwork, what NICB's free VINCheck shows, and what the law says about a damaged VIN. Eight sources added.
Seller guidance on buyer checks, vehicle history reports and VIN paperwork checked.
Originally posted and shared with our readers.
Sources
49 CFR Part 565: Vehicle Identification Number (VIN) Requirements
Each VIN has seventeen characters, from a set of letters that leaves out I, O and Q, and the digits 0 to 9. The check digit in position nine is to "provide a means for verifying the accuracy of any VIN transcription." In positions 4 to 8, "the characters utilized and their placement within the section may be determined by the manufacturer." Readable "through the vehicle glazing" by a person standing outside next to the left windshield pillar. Position 10 is the model year (A = 1980 and 2010); for passenger cars, MPVs and trucks of 10,000 lb or less, "if position 7 is numeric, the Model Year in position 10 of the VIN refers to a year in the range 1980-2009." "The VINs of any two vehicles manufactured within a 30-year period shall not be identical." Accessed Oct. 15, 2026
49 CFR 567.4: Certification Requirements for Manufacturers
The label is affixed to "the hinge pillar, door-latch post, or the door edge that meets the door-latch post," next to the driver's seating position, and gives the date of manufacture (month and year) and the vehicle identification number. Accessed Oct. 15, 2026
Bureau of Justice Assistance: What is the application of Vehicle Identification Number (VIN)?
In the early 1980s NHTSA required all road vehicles to have a 17-character VIN. "1st character - identifies the country in which the vehicle was manufactured"; 2nd, the manufacturer; 3rd, vehicle type or manufacturing division; 4th to 8th, attributes of the vehicle; 9th, "verifies the accuracy of the transcription"; 10th, the model year; 11th, the assembly plant; 12th to 17th, the production sequence. Accessed Oct. 15, 2026
UAW Region 4: Where Was Your Car Built?
"The first character of the VIN indicates the country in which the vehicle was manufactured." "VIN's starting with 1, 4, and 5 are manufactured in the United States." Accessed Oct. 15, 2026
Pennsylvania DMV: Titling and Registration FAQs
"Your seven (7) character plate number, title number, VIN number, and check digits are highlighted" on the registration card. Accessed Oct. 15, 2026
National Insurance Crime Bureau: VINCheck
Enter a VIN "to instantly learn whether the vehicle has been reported as stolen but not recovered or reported as a salvage or flood-damaged vehicle." "While VINCheck is a useful free tool, it is not a comprehensive vehicle history report." Accessed Oct. 15, 2026
National Insurance Crime Bureau: Buying a Used Vehicle
"A cloned vehicle is a stolen car that's been given a fake VIN copied from a legally owned vehicle of the same make and model." "What happens if I unknowingly buy a cloned vehicle? Unfortunately, the vehicle is never legally yours, even if you paid for it." Accessed Oct. 15, 2026
18 U.S. Code 511: Altering or removing motor vehicle identification numbers
Whoever "knowingly removes, obliterates, tampers with, or alters an identification number for a motor vehicle" shall be "imprisoned not more than 5 years." Exempt: a repair where the alteration "is reasonably necessary for the repair," and a person who "restores or replaces an identification number" in accordance with applicable State law. Accessed Oct. 15, 2026
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