GMC 2004 Defense Owner's Manual page 22

Exterior Lamp or Device
Instrument Panel/Switch Illumination
Radio/Clock Illumination
Headlamp High-Beam Indicator
Turn Signal/Hazard Warning Indicators
Four-Wheel-Drive Indicator
Dome/Courtesy Lamps
Glove Compartment Lamp
Warning Chime: Headlamps On,
Instrument Cluster Warning Lights
Mechanical Device
Automatic Transmission
Shift Lock Control
Torque Converter Lockup Clutch
Service Lights/Blackout Switch
SERVICE ON
SERVICE ON
SERVICE ON
SERVICE ON
SERVICE ON
SERVICE ON
SERVICE ON
SERVICE ON
Service Lights/Blackout Switch
SERVICE ON
SERVICE ON
Blackout Drive Light Switch
OFF
OFF
OFF
OFF
ON
OFF
OFF
ON/OFF
Blackout Drive Light Switch
ON/OFF
ON/OFF
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