Intelligent Sleep Mode (Ism); Transmission Retarder; Engine Brake - PREVOST H3-45 VIP Owner's Manual

INTELLIGENT SLEEP MODE (ISM)

The ISM is a battery- saving mode designed to
protect the battery State Of Charge (SOC). The ISM
will automatically change the vehicle electrical
system from normal functional state to sleep mode if
the battery SOC falls below 65%.
Once the vehicle has entered into sleep mode, the
only actions needed to put the vehicle back into its
normal functional state are:
To cycle the ignition key from OFF to ON;
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To open the entrance door;
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To turn on the hazard lights.
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The ISM forces the vehicle to go into sleep mode if
all the following conditions are met:
1. The engine is not running;
2. The parking brake is applied;
3. The ignition switch is at the ON, ACC
positions or at the OFF position but the 15
minutes "wake up" period after engine
shutdown is not expired;
4. The battery state of charge of 12V or 24V
system falls below 65%.
The red ALTERNATOR telltale will turn on
30 seconds before activation of the sleep
mode.

TRANSMISSION RETARDER

The transmission retarder is an optional device that
helps to reduce the speed of a vehicle. It improves
vehicle control, increases driving safety and permits
more economical operation. The retarder provides
slowing power when it is most needed, such as
when descending mountain roads, in stop- and- go
traffic and on crowded freeways.
The transmission retarder is a vehicle- slowing
device, not a vehicle-stopping device. It is not a
substitute for the service braking system. The
service brake must be used to bring the vehicle to a
complete stop.
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PA-1638 Owner's Manual X3-45 VIP
The retarder is provided with control buttons on the
steering wheel and a lever on the steering column
(refer to "TRANSMISSION
page 10 in Section 4 Controls and instruments).
NOTE
Extended use will raise the temperature of the
transmission fluid.
The retarder helps reduce speed on grades without
using the vehicle's conventional service braking
system. This virtually eliminates brake overheating
and reduces the risk of a runaway vehicle. A retarder
greatly increases the service life of brake pads and
discs, resulting in reduced brake maintenance costs.
WARNING
Do not use the retarder during inclement weather or
slippery road conditions.
NOTE
The stoplights automatically illuminate when the
vehicle is slowing down after application of the

transmission retarder.

NOTE
For vehicles equipped with the Antilock Braking
System (ABS), as the wheels start to lock up on
slippery roads, the output retarder automatically
deactivates until the wheels roll freely.

ENGINE BRAKE

WARNING
A vehicle speed retarding device (such as engine
brake) is not intended to replace the service brake
systems on your vehicle nor intended to bring your
vehicle to a stop. A vehicle speed retarding device
is only intended to reduce the speed of your vehicle
under certain conditions.
Several types of engine brake can be installed or
are standard on certain engines. All are used to
reduce wear on the vehicle brake linings.
Other Features 5-25
RETARDER" on