2004 Buick Century Owner's Manual - Page 308

Vehicle Identification Vehicle Identification Number (VIN) Engine Identification The 8th character in your VIN is the engine code. This code will help you identify your engine, specifications and replacement parts. Service Parts Identification Label This label is located on the inside of the trunk lid. It is very helpful if parts need to be ordered for the vehicle. It has the following information printed on it: This is the legal identifier for your vehicle. It appears on a plate in the front corner of the instrument panel, on the driver's side. You can see it if you look through the windshield from outside your vehicle. The VIN also appears on the Vehicle Certification and Service Parts labels and the certificates of title and registration. The VIN The model designation Paint information A list of all production options and special equipment Do not remove this label from the vehicle. 5-96