What the VIN identifies
Modern standardized VINs contain 17 characters. They use letters and numbers but not I, O or Q. Older vehicles and some market-specific identifiers may use different formats. Format validation only checks whether an entry resembles a standard VIN; it does not authenticate a vehicle.
Manufacturer, vehicle description and identifier
The opening characters identify the manufacturer or manufacturing organization under the relevant system. Other positions describe the vehicle and identify the particular unit. Code meanings, model-year interpretation and check-digit requirements depend on the standard, manufacturer and market. Do not apply a US model-year or check-digit rule to every vehicle worldwide.
Where to look
Start with the owner’s manual for the precise model. Many vehicles display the VIN near the windscreen, on a body label and in a stamped location. Compare those identifiers with the registration and service documents. Altered, mismatched or illegible markings require specialist investigation.
What free decoding can reveal
A decoder may identify the make, vehicle type, model year, engine or manufacturing plant when the source supports that VIN. The US NHTSA vPIC service uses manufacturer-submitted information and has limited usefulness for vehicles outside its coverage. Unknown fields should remain unknown.
What requires separate records
Accident entries, recorded mileage, title brands and service visits come from datasets linked to a VIN. Availability differs by provider and country. A valid decoded specification is not evidence that a particular car has no accident or finance history. Compare free checks and their limits.
Checking an imported vehicle
Investigate the country where it was used, not only the one where it is now for sale. Compare the export and import dates, local inspection evidence and the seller’s documents. Read the cross-border checking guide.
