2004 Cadillac XLR Owner's Manual - Page 307

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 You will find this label on the under side of the spare tire cover in the trunk. It is very helpful if you ever need to order parts. On this label is: 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. your VIN, the model designation, paint information and a list of all production option and special equipment. Be sure that this label is not removed from the vehicle. 5-83