Labeling - Anti-Theft
WARNING: This page is about a different car, the 2004 Hummer H2. However, it is still accessible from the selected car via links, so may be relevant.
Federal law requires that General Motors label certain body parts on this vehicle with the vehicle identification number (VIN). The purpose of the law is to reduce the number of motor vehicle thefts by helping in the tracing and the recovery of parts from stolen vehicles.
The labels are permanently affixed to an interior surface of the part. The label on a replacement part contains the letter R, the manufacturer's logo, and the DOT symbol.