3G

The first three characters of every VIN are the World Manufacturer Identifier (WMI). The code 3G is assigned to General Motors Mexico, with the country of manufacture Mexico.

So any 17-character VIN that begins with 3G was produced by General Motors Mexico:

3GZZZ0000000000000

The WMI only identifies the maker. To read the year, engine, plant and serial number, decode the complete 17-digit VIN with our free tool — then check which ECU it uses and what tuning services (DPF, EGR, AdBlue, DTC off, Stage) are available.