Every Mazda CX-9 (2017–2023) carries a 17-character VIN that begins with the JM3 WMI. The CX-9 is a gas SUV; this page shows what each character of a Mazda CX-9 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 CX-9.
Each sample below is built from the real JM3 WMI and the CX-9's descriptor, so it decodes to a Mazda CX-9 of the right model year:
Have a real Mazda CX-9 VIN? Decode it →
Worked on the sample JM3TCBDY9H0587835 — a 2017 Mazda CX-9:
| Position | Section | Value | What it tells you |
|---|---|---|---|
| 1–3 | WMI | JM3 | Marks the VIN as Mazda, built in Japan |
| 4–8 | VDS | TCBDY | Descriptor for the CX-9 — SUV body, gas powertrain |
| 9 | Check digit | 9 | Mod-11 checksum over the other 16 characters |
| 10 | Model year | H | Code H = 2017 |
| 11 | Plant | 0 | Assembly-plant code |
| 12–17 | Serial | 587835 | Sequential production number |
Positions 1–3 of every Mazda CX-9 VIN read JM3 — the World Manufacturer Identifier that marks the vehicle as Mazda, assembled in Japan (Asia). After the WMI, positions 4–8 (TCBDY in our seed) describe the CX-9 itself; see the full 17-digit format.
Position 10 encodes the model year. For the CX-9, 2017 is code H and 2023 is code P. See the 2023 year code or the check-digit math.
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A Mazda CX-9 VIN is 17 characters starting with the JM3 WMI, for example JM3TCBDY9H0587835. Positions 4–8 describe the CX-9, position 9 is the check digit, position 10 is the model year, and 12–17 are the serial number.
Read it left to right: JM3 is the Mazda WMI, positions 4–8 are the CX-9 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 CX-9 in our seed uses the JM3 WMI (Japan). Any VIN beginning with JM3 decodes to Mazda.
No. They are synthetically generated but checksum-valid, use the real Mazda JM3 WMI, and carry the CX-9's descriptor and a valid year code — so a decoder returns a Mazda CX-9. No real vehicle's VIN is used.