The first three characters of a VIN are the World Manufacturer Identifier (WMI). 5GA is assigned to Buick, built in United States (North America). Any VIN that starts with 5GA decodes to Buick. The sample VINs below are checksum-valid and start with 5GA.
| Field | Value |
|---|---|
| WMI | 5GA (VIN positions 1–3) |
| Manufacturer | Buick |
| Country of assembly | United States |
| Region | North America (from the first character, 5) |
| Models seen here | Enclave |
Buick test VINs · Decode a 5GA VIN →
After the 5GA 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.
5GA is a Buick WMI. Every VIN beginning with 5GA was built by Buick and decodes to that make.
The first character 5 places the manufacturer in United States (North America region) under the VIN standard.
No. They are synthetically generated but checksum-valid and use the real 5GA WMI, so a decoder returns Buick. No real vehicle's VIN is used.