Every GMC Acadia (2017–2023) carries a 17-character VIN that begins with the 1GK WMI. The Acadia is a gas SUV; this page shows what each character of a GMC Acadia VIN means and gives 4 checksum-valid sample VINs you can drop straight into test fixtures. Synthetic — not real: no scraping, no real-owner data. The generator below is pre-filtered to the Acadia.
Each sample below is built from the real 1GK WMI and the Acadia's descriptor, so it decodes to a GMC Acadia of the right model year:
Have a real GMC Acadia VIN? Decode it →
Worked on the sample 1GKKNRLS2HJ856597 — a 2017 GMC Acadia:
| Position | Section | Value | What it tells you |
|---|---|---|---|
| 1–3 | WMI | 1GK | Marks the VIN as GMC, built in United States |
| 4–8 | VDS | KNRLS | Descriptor for the Acadia — SUV body, gas powertrain |
| 9 | Check digit | 2 | Mod-11 checksum over the other 16 characters |
| 10 | Model year | H | Code H = 2017 |
| 11 | Plant | J | Assembly-plant code |
| 12–17 | Serial | 856597 | Sequential production number |
Positions 1–3 of every GMC Acadia VIN read 1GK — the World Manufacturer Identifier that marks the vehicle as GMC, assembled in United States (North America). After the WMI, positions 4–8 (KNRLS in our seed) describe the Acadia itself; see the full 17-digit format.
Position 10 encodes the model year. For the Acadia, 2017 is code H and 2023 is code P. See the 2023 year code or the check-digit math.
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A GMC Acadia VIN is 17 characters starting with the 1GK WMI, for example 1GKKNRLS2HJ856597. Positions 4–8 describe the Acadia, position 9 is the check digit, position 10 is the model year, and 12–17 are the serial number.
Read it left to right: 1GK is the GMC WMI, positions 4–8 are the Acadia descriptor, position 9 verifies the VIN via a mod-11 checksum, position 10 gives the year, position 11 the plant, and 12–17 the serial. Paste any VIN into the decoder to do it automatically.
The Acadia in our seed uses the 1GK WMI (United States). Any VIN beginning with 1GK decodes to GMC.
No. They are synthetically generated but checksum-valid, use the real GMC 1GK WMI, and carry the Acadia's descriptor and a valid year code — so a decoder returns a GMC Acadia. No real vehicle's VIN is used.