Every GMC Yukon (2021–2024) carries a 17-character VIN that begins with the 1GK WMI. The Yukon is a gas SUV; this page shows what each character of a GMC Yukon 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 Yukon.
Each sample below is built from the real 1GK WMI and the Yukon's descriptor, so it decodes to a GMC Yukon of the right model year:
Have a real GMC Yukon VIN? Decode it →
Worked on the sample 1GKS2BKD1MR423450 — a 2021 GMC Yukon:
| Position | Section | Value | What it tells you |
|---|---|---|---|
| 1–3 | WMI | 1GK | Marks the VIN as GMC, built in United States |
| 4–8 | VDS | S2BKD | Descriptor for the Yukon — SUV body, gas powertrain |
| 9 | Check digit | 1 | Mod-11 checksum over the other 16 characters |
| 10 | Model year | M | Code M = 2021 |
| 11 | Plant | R | Assembly-plant code |
| 12–17 | Serial | 423450 | Sequential production number |
Positions 1–3 of every GMC Yukon 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 (S2BKD in our seed) describe the Yukon itself; see the full 17-digit format.
Position 10 encodes the model year. For the Yukon, 2021 is code M and 2024 is code R. See the 2024 year code or the check-digit math.
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A GMC Yukon VIN is 17 characters starting with the 1GK WMI, for example 1GKS2BKD1MR423450. Positions 4–8 describe the Yukon, 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 Yukon 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 Yukon 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 Yukon's descriptor and a valid year code — so a decoder returns a GMC Yukon. No real vehicle's VIN is used.