Navistar WorkStar Series, Operator'S Manual

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Controls/Features
Marker Interrupt
The marker interrupt function is an optional feature that toggles
the park lights and markers when the operator activates the
spring-loaded marker interrupt switch.
When park lights are
ON, activating the interrupt switch will cause the park lights and
markers to be turned OFF until the interrupt switch is released.
If park lights are OFF, activating the interrupt switch will cause
the park lights and trailer markers to be turned ON until the
switch is released.
Panel Lighting
The panel lighting brightness is controlled by the Panel rocker
switch.
To increase the brightness of the instrument panel
lighting, continually press the upper portion of the rocker switch.
To dim the instrument panel lighting, continually press the lower
portion of the rocker switch.
Dome Lighting
The overhead dome light is used for reading and for illumination
when entering and exiting the vehicle. The dome light ON/OFF
is also controlled by pushing on the lamp lens. When either
entrance door is closed, the courtesy light will remain ON for
approximately 20 seconds or until the ignition switch is turned
ON. At that time, the lights will dim gradually until the light is OFF.
The optional keyless entry key fob also turns ON the light for a
time period when its Unlock button is pressed and turns OFF the
light (dims gradually to OFF) when its Lock button is pressed.
Courtesy Lights
The optional driver courtesy lights are located under the
instrument panel ends for door lighting. This feature is provided
with the optional Premium trim package.
An optional rear
courtesy light can also be provided with the travel crew cab.
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