The first three characters of a VIN are the World Manufacturer Identifier (WMI). 3TM is assigned to Toyota, built in Mexico (North America). Any VIN that starts with 3TM decodes to Toyota. The sample VINs below are checksum-valid and start with 3TM.
| Field | Value |
|---|---|
| WMI | 3TM (VIN positions 1–3) |
| Manufacturer | Toyota |
| Country of assembly | Mexico |
| Region | North America (from the first character, 3) |
| Models seen here | Tacoma |
Toyota test VINs · Decode a 3TM VIN →
After the 3TM WMI, positions 4–8 describe the model, body and engine; position 9 is the mod-11 check digit; position 10 is the model year; position 11 is the assembly plant; and positions 12–17 are the serial number. See the full 17-digit VIN format.
3TM is a Toyota WMI. Every VIN beginning with 3TM was built by Toyota and decodes to that make.
The first character 3 places the manufacturer in Mexico (North America region) under the VIN standard.
No. They are synthetically generated but checksum-valid and use the real 3TM WMI, so a decoder returns Toyota. No real vehicle's VIN is used.