a 1995 AT carries S in position 10.
Got a VIN from another make? The free VIN decoder reads any 17-character VIN, whatever built it.
How to read a GMC AT VIN
Every GMC AT VIN follows the same 17-character layout:
| Position | Section | What it tells you |
|---|---|---|
| 1–3 | WMI | World Manufacturer Identifier — country, manufacturer and vehicle type. |
| 4–8 | VDS | Vehicle Descriptor Section — body style, engine, restraint system, series. |
| 9 | Check digit | A calculated digit that validates the whole VIN. Wrong digit = wrong VIN. |
| 10 | Model year | One character for the model year. Letters skip I, O, Q, U and Z. |
| 11 | Plant | The assembly plant that built the car. |
| 12–17 | Serial | Sequential production number of this exact vehicle. |
Model-year codes for the GMC AT
Position 10 carries the model year, skipping I, O, Q, U and Z. The alphabet comes round every 30 years, which the GMC AT has not yet outlived: its 11 years still map one-to-one. All 11 model years of the GMC AT, 1985 to 1995, with the character each one carries:
| Model year | VIN character (position 10) | Same character as |
|---|---|---|
| 1995 | S | — |
| 1994 | R | — |
| 1993 | P | — |
| 1992 | N | — |
| 1991 | M | — |
| 1990 | L | — |
| 1989 | K | — |
| 1988 | J | — |
| 1987 | H | — |
| 1986 | G | — |
| 1985 | F | — |
What a decoded GMC AT VIN gets you
What a decoded VIN opens up:
| Data | For this model | Source |
|---|---|---|
| Fuel economy | 18 mpg combined (avg) | EPA |
| Model years covered | 11 years | ForCar catalog |
Where to find the VIN on a GMC AT
Four places on a GMC AT carry it, and all four must read the same — a mismatch is where fraud shows itself first.
| Where | How to see it | Why it matters |
|---|---|---|
| Dashboard, driver side | Through the windshield, bottom corner | Easiest to check before you touch anything |
| Driver door jamb | Open the door, sticker on the pillar | Also lists tire pressures and build date |
| Under the hood | Firewall or strut tower plate | Survives a windshield replacement |
| Title and insurance | Paper documents | Must match the car — a mismatch means fraud or a swapped panel |
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Frequently asked questions
Is this GMC AT VIN decoder free?
Yes, with no account. Besides the year, plant and build characters it shows the recalls NHTSA holds on the GMC AT.
What year is my AT by its VIN?
Read position 10: a 1995 AT carries S, a 1994 AT carries R, a 1993 AT carries P.
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