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VIN guides
Everything worth knowing about vehicle identification numbers, written for people buying, selling or just curious about their car.
What Is a VIN? Vehicle Identification Numbers ExplainedA plain-English explanation of the 17-character vehicle identification number: what it encodes, why it exists, and what it can and can't tell you.How to Decode a VIN by Hand, Position by PositionLearn to read all 17 characters of a VIN yourself: manufacturer codes, vehicle descriptor, check digit, year code, plant code and serial number.VIN Check DigitThe exact algorithm behind the VIN check digit: transliteration values, position weights and the mod-11 calculation, with a worked example.VIN Model Year CodesFull reference table for VIN position 10 model year codes from 1980 to 2039, plus how to resolve the 30-year ambiguity.Where to Find the VIN on Your Car (All Locations)Every place the VIN appears on a vehicle — dashboard, door jamb, engine bay, frame — plus where to find it in your paperwork.Free VIN Check vs. Paid Vehicle History ReportWhat a free VIN decoder actually shows, what paid reports like Carfax and AutoCheck add, and the smart order to use them in when buying used.
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