Where to Find the VIN

 

On most cars and light trucks the VIN is visible from outside the vehicle, at the base of the windshield on the driver’s side. That position is not a custom: it is a requirement for certain vehicle classes. For everything else, the location depends on the type of vehicle and the manufacturer. This page covers where to look, how to read what you find, and how to check it against the paperwork.

10% OFF
question-mark Why do we need your phone number?
Why do we need your phone number?
We'll send your vehicle report or sticker link via text for easy access.
Our support team may contact you if we find issues with your report or sticker.
Your data is never shared with third parties.
Get 10% off your purchases by providing your phone number.

Cars, SUVs and light trucks

Federal rules require the VIN on passenger cars, multipurpose passenger vehicles, low-speed vehicles and trucks of 4,536 kg (10,000 lb) gross vehicle weight rating or less to be inside the passenger compartment. It must be readable without moving any part of the vehicle, through the glass, in daylight, by an observer standing outside next to the left windshield pillar. Each character must be at least 4 mm high (49 CFR 565.13). In practice that is the plate on top of the dashboard in the driver’s-side corner.

A second place to look is the certification label, normally on the driver’s door or door frame. It records the VIN together with the manufacturer, the manufacture date and the gross weight ratings. Check it against the dashboard number: the two are separate markings and should agree.

Heavier trucks, trailers, motorcycles and ATVs

The windshield-visibility rule is written for specific vehicle classes. It does not describe where a motorcycle, a trailer or a heavy truck carries its number. For these, locations are set by the manufacturer and vary by model. Common places include the frame near the steering head on a motorcycle, a plate on the frame or tongue of a trailer, and a plate or stamping on the frame rails or cab of a heavy truck. If the first spot is unreadable or painted over, check the others before assuming the number is missing.

A VIN is not the only number on a vehicle

Engines, transmissions, frames and some components carry their own serial numbers. These are not VINs, and entering one into a VIN lookup will fail or point to the wrong vehicle. A VIN has 17 characters on a modern vehicle and follows the structure described on the VIN format page. A short number on an engine block does not.

The paperwork

The VIN also appears on the title, the registration, the insurance card and policy documents, and on most sale paperwork and recall notices. If you need the number but do not have the vehicle in front of you, these documents are the usual source.

Reading it correctly

VINs use capital, sans-serif characters, and the letters I, O and Q never appear in them. So a character that looks like an O is a zero, and one that looks like an I is a one. Worn labels, glare and tinted glass cause most misreads. Photograph the number, zoom in, and copy it one character at a time. Count to 17 on a modern vehicle.

Checking that the numbers agree

When you are looking at a vehicle to buy, compare the VIN in four places: the dashboard plate, the certification label, the title and any report you hold. A mismatch has harmless explanations, such as a typing error on a document, and serious ones, such as a replaced component or an altered marking. The VIN alone cannot tell you which. Treat any disagreement as a reason to verify before continuing, and do not run a lookup on a number that does not match the vehicle.

The regulation requires the VIN to be marked on a part not designed to be removed except for repair, or on a plate permanently fixed to such a part. A VIN label on a part that looks recently replaced or poorly attached is worth a closer look.

Imported vehicles

An imported vehicle keeps the VIN assigned by its original manufacturer. If that VIN does not meet U.S. format requirements, a registered importer adds a label inside the passenger compartment that states the original number as a substitute for a U.S. VIN (49 CFR 565.14). Both labels can be present on the same vehicle, and the original number is the one to use.

If you cannot read it or find it

Do not guess a character. Use the title or registration, ask the seller for a clear photo of the dashboard plate and the door label, or look at another location on the vehicle. If you only have a license plate, license plate lookup can resolve it to a vehicle in supported jurisdictions, and you can then confirm the VIN against the vehicle.

Once you have the VIN

A VIN decode shows what the number says about how the vehicle was built. If it returns nothing, the cause may be a misread character, an older or non-standard format, or a vehicle for which the searched sources hold no data. See why vehicle data may be missing or incorrect to tell these apart.

Sources and basis