Honda 2009 GOLDWING GL1800 Owner's Manual page 247

Color Label & Code
The color label is attached inside the fuel filler compartment lid.
The color code is helpful when ordering replacement parts. You may record the
color and code in the Quick Reference section at the rear of this manual.
Vehicle Identification
color label
(models not equipped with Airbag)
color label
(models equipped with Airbag)
Technical Information
241