TM 9-2320-364-102-12 2-3. LOCATION AND USE OF CONTROLS AND INDICATORS(CONT).Figure 2-4. Instrument Panel Controls And Indicators - CONT.KeyControl or IndicatorFunction32Dome Light SwitchTurns the dome light on and off.33Headlight/Clearance LightSwitchTurns the headlights and clearance lights on andoff. Center position is clearance lightsand down position is service drive.34Work Light SwitchProvides the power to work lights.35Beacon Light SwitchTurns the beacon light on and off.36Blackout Light SelectorSwitchSelects between normal and blackout mode fornight driving under blackout conditions. Thevehicles back-up alarm will automaticallydeactivate in the blackout mode.37Blackout Light Switch LockMust be pushed down while operating the switch.38Blackout Drive SwitchTurns the blackout drive lights on and off.39Blackout Marker SwitchTurns the blackout marker lights on and off.