GM Service Manual Online
For 1990-2009 cars only

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

VIN Derivative Table

Position

Definition

Character

Description

1

Division

C

T

Chevrolet Truck

GMC Truck

2

Model Year

3

2003

3

Plant Location

G

J

R

Silao

Janesville

Arlington

4-9

Plant Sequence Number

100,001

Plant Sequence Number