GMC C series 2002 Owner's Manual page 100

The main components of your instrument panel are the following:
A. Left Side Window Defogger
B. Exterior Lamps Switch
C. Vent
D. Instrument Panel Cluster
E. Warning Lights
F. Heated Mirror Switch (If Equipped)
G. Diesel Engine Exhaust Brake Switch
H. Marker/Clearance Lamps Switch (If Equipped)
I. Audio System or Storage Area
J. Glove Box
K. Hourmeter (If Equipped)
L. Convenience Center Fuse Panel
M. Air Vent Controls
N. Ashtray
O. Air Brake Controls (If Equipped)
P. Comfort Controls
Q. Storage Tray/Cassette Player
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