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GM VIN Number Lookup
A typical General Motors Vehicle Identification is tabulated as below:
VIN 1 G 1 Y Y 2 4 U 9 5 5 5 1 1 3 5 6
Position 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17
         
Position 1-2-3 World Manufacturer Identifier, e.g. '1GT'


Position 4 and 5 GM Model, e.g. value = "YY" Corvette

Position 8 - Engine, e.g. 'A' = 4.6 L V8 SFI

Position 9 - VIN - Check Digit

Position 10 - e.g. 2013 GM, Model Year -     VIN Year Codes

Position 11 - Assembly Plant, e.g. F = Flint

Digit Series : 12-13-14-15-16-17  indicate a unique GM Vehicle Serial Number.