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

1

2001

3

Plant Location

1

9

Oshawa #2

Oshawa #1

4-9

Plant Sequence Number

--

--