How to Read a Chevrolet VIN Number

A Chevrolet VIN is 17 characters, and it is not a random serial number. Since 1981 every position has carried a defined meaning under the standardized format, so you can read a surprising amount with no tools at all.

Find the VIN at the base of the windshield on the driver's side, on the driver's door jamb label, and on the title and insurance paperwork. All of them must match exactly.

Position 1 is the country of final assembly. A 1 means the United States, 2 means Canada, and 3 means Mexico, all of them common on Chevrolets.

Position 2 identifies the manufacturer, and on a Chevrolet it is the letter G for General Motors.

Position 3 narrows the division and vehicle type. Combinations like 1G1 usually indicate a Chevrolet passenger car, while 1GC points to Chevrolet pickups and 1GN to Chevrolet SUVs.

Positions 4 through 7 describe the vehicle itself: the model line, the series, and the body style, with the exact meanings varying between cars and trucks.

Position 8 deserves special attention. On most GM vehicles it identifies the engine, which makes it the first thing to check against a seller's engine claims.

Position 9 is the check digit. It is computed mathematically from the other characters, so a VIN that fails the check-digit test is mistyped or fabricated.

Position 10 is the model year, expressed as a rotating letter or number. The letter N marks 2022 and T marks 2026, for example, regardless of when the vehicle was actually sold.

Position 11 is the assembly plant, a detail enthusiasts care about when tracking where a truck or Corvette was built.

Positions 12 through 17 are the production sequence number, the vehicle's place in its plant's build order.

Here is the catch: the VIN encodes identity, not options. Nothing in those 17 characters says whether a truck has the Z71 package, a G80 locking differential, or Max Trailering equipment.

Options live in GM's build records instead. Enter the 17-character VIN in the lookup tool on our home page and the site retrieves the window sticker or RPO build sheet with the complete factory equipment list.

For what those records contain and how shoppers put them to work, see the overview in our Chevrolet VIN Decoder guide.

One more boundary: the 17-character structure only began in 1981. If you are researching an older vehicle, read the Classic Chevrolet VIN Decoder for Pre-1981 Models guide before trying any modern tool.

Learn the positions once and every Chevy VIN becomes readable at a glance. Then let the lookup fill in everything the characters alone cannot say.