GM Service Manual Online
For 1990-2009 cars only

All engines and transmissions are stamped with a partial Vehicle Identification Number (VIN). The following table identifies the different VIN derivative characters, character positions and their respective positions.

VIN Derivative Table

Position

Definition

Character

Description

1

Division

4

Buick

2

Model Year

Y

2000

3

Plant Location

S

Shanghai

4-9

Plant Sequence Number

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