VIN Guide

The vehicle identification number is the one thing about a used car that can’t be repainted, replaced, or talked around. Seventeen characters encode where the car was built, what it was built as, and — through the databases keyed to it — much of what has happened to it since. This section explains how to read a VIN, what each position means, and how to use it before you spend money: what a free decode shows (build data, recalls, complaints, crash ratings) and what it doesn’t (accidents, mileage history, title brands, liens). It also covers the mistakes buyers make with VINs: trusting a plate on the dash without checking the door jamb and title, accepting a “report” the seller printed, or not noticing that the VIN in the listing isn’t the VIN on the car. Start with the free VIN check if you have a specific vehicle in front of you, then use the guides here to understand what the results mean.