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GM VIN Decoder
GM VIN Numbers

Positions 1, 2 and 3 of a VIN represent the World Manufacturer Identifier - WMI. For example if the first three digits are '1G1', this represents a USA, General Motors vehicle.

Digits 4 to 9 represent the Vehicle Descriptor Section - VDS. GM vehicle descriptors are used to describe the vehicle body type, transmission and the engine. At position 9, the check digit value is used to verify that the GM VIN number has not been altered.

Digits 10 to 17 represent the Vehicle Identifier Section - VIS. GM Vehicle Identifiers are used to uniquely identify a particular type of vehicle. This includes the year of vehicle manufacture and the serial number.

A VIN number may appear in various places on a car: i) visible through the windscreen above the dashboard on the front passenger side ii) on a plate in the engine bay iii) on a label attached to the drivers door column and iv) on the vehicle registration document. 

VIN W M I <- - V D S -> <- - - V I S - ->
Position 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17