Navistar ProStar+, Operation And Maintenance Manual

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Controls / Features
Steering Wheel Controls
The steering wheel contains a variety of push-button switches to
aid in the operation of the vehicle.
1 SET / COAST - Used to set the speed
desired on the cruise control or coast to
a lower desired speed. When parked,
used to decrease idle RPM.
2 HEADLIGHT INT - Used to momentarily
turn off (interrupt) the headlights when
pressed.
3 RESUME / ACCEL - Used to resume the
desired speed set on the cruise control
or accelerate to a higher desired speed.
When parked, used to increase idle
RPM.
4 OFF / ON - Used to turn the cruise
control ON and OFF.
5 HORN - Used to activate the city horn.
6 RADIO (Optional) - Adjusts radio volume
(+/-) and station selection
(< >) with the radio turned on.
7 AIR HORN - Used to activate the air
horn.
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