Horns - PREVOST X3-45 VIP 2017 Owner's Manual

4-48 Controls and Instruments
Refer to Section 5 Other Features for more information about the engine brake operation and
AUTO mode.
10 RETARDER / ENGINE BRAKE OFF
Press this button to cancel operation of the transmission retarder.
On vehicles equipped with engine brake, this button is a momentary switch that will cancel the
Engine Brake LOW
mode. On vehicles so equipped, an engine brake switch located in the dashboard can be
used to cancel completely (OFF mode) the engine brake.
NOTE
Engine brake is safe to use in any road conditions including adverse conditions.
11 RETARDER / ENGINE BRAKE HIGH
If your vehicle is equipped with a transmission retarder, this button has the same effect than the
retarder/engine brake LOW
On vehicles equipped with engine brake, pressing this button will permit full application of engine
brake (100 % of braking power). Refer to Section 5 Other Features for more information
concerning the engine brake operation and AUTO
13 Volume (Dashboard Radio)
Use this button to increase or decrease the dashboard radio (driver's radio) volume.
14 Seek (Dashboard Radio)
Use this button to seek up or down for a radio station.

HORNS

The electric horn (city horn) and air horn
(highway horn) are operated from the steering
wheel center pad. Use the Horn Selector switch
located on the lateral control panel to select the
appropriate horn type.
NOTE
When the vehicle is stationary, the electric
horn will sound to inform the driver that a fire is
detected in the engine compartment.
or Engine Brake HIGH
button.
mode and switch the engine brake to AUTO
mode.
STEERING WHEEL
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