GMC 2001 Envoy - Manual (Page 153)

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The main components of your instrument panel are the following:
A. Air Vents
B. Turn Signal/Multifunction Lever
C. Instrument Panel Cluster
D. Transfer Case Controls (If Equipped)
E. Lamp Controls
F. Fog Lamps (if equipped)
G. Brake Release
H. Audio Steering Controls (If Equipped)
I. Rear Window Washer/Wiper
J. Rear Liftgate/Endgate Release
K. Comfort Controls
L. Rear Window Defogger
M. Audio System
N. Glove Box