All engines and transmissions are stamped or laser etched with a partial vehicle identification number (VIN), which was derived from the complete VIN. A VIN derivative contains the following nine positions.

1

GM Division Identifier

6

Cadillac

2

Model Year

2

2002

3

Assembly Plant

M

Lansing, MI

4-9

Plant Sequence Number

000001

Plant Sequence Number

A VIN derivative can be used to determine if a vehicle contains the original engine or transmission, by matching the VIN derivative position to the corresponding position in the complete VIN.

1

3

2

10

3

11

4-9

12-17