IC Bus Gasoline CE Series, Operation And Maintenance Manual, Page: 86 / 241

Passenger Control
The ignition starter interlock prevents the bus from being started
while the exit door is locked. If the ignition switch is turned to the
START position while vandal locks are in place, an alarm will be
activated as long as the door is locked.
Entrance Door Lock (If Equipped)
0000431525
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1. Latch
As an extra measure of security, the bus may be equipped with
a entrance door lock. This lock mechanism is used to lock the
entrance door to the bus in order to prevent unauthorized access
to the bus while not in use or attended.
To lock the entrance door lock feature, rotate the latch clockwise.
To unlock, rotate the latch counterclockwise.
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