Primary And Secondary Shift Schedules; Transmission Service Indicator; Description Of Available Ranges; R (Reverse) - PREVOST X3-45 COACH 2018 Operator's Manual

Controls and Instruments
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request the next higher or lower range. One
press changes gears by one range. If the button
is held down, the selection will scroll up or down
until the button is released or until the highest or
lowest possible range is selected. Protection
mechanisms inhibit selecting ranges that are not
appropriate for the current speed or which may
damage driveline components.
MODE
: Pressing the MODE button allows the
driver to activate the secondary shift schedule
that has been programmed into the TCM unit.
PRIMARY AND
SCHEDULES
The primary shift schedule is the default mode
at starting of the engine and is typically specified
to accommodate normal vehicle operation. The
transmission controller automatically selects
between ECONOMY and PERFORMANCE shift
strategy, based on the vehicle actual load and
the grade on which the vehicle is operating. This
is called Load Based Shift Scheduling (LBSS).
This can produce improved overall vehicle fuel
economy while still enabling high productivity
when the vehicle is loaded.
In the secondary shift schedule, only the
ECONOMY shift strategy is available. No
switching is done between shift strategies. The
secondary shift mode is available only if selected
by the driver, using the MODE button. When the
secondary mode is
illuminates on the display.
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When the diagnostic display mode has been
entered, the MODE button is used to view and
toggle through diagnostic code information.
Refer to appendix C for more details about
diagnostic code display procedure and
fluid level check using the pushbutton shift
selector.

TRANSMISSION SERVICE INDICATOR

: This indicator will be illuminated upon the
detection of a service issue relating to clutch, filter
or fluid life. The appearance of the indicator (lit
steadily, flashing, etc.) varies for each of the
conditions monitored by the system. Refer to
SECONDARY SHIFT
activated, "MODE"
PA1627 X3-45 Operator's Manual
appendix C for more details about diagnostic
code display procedure, fluid level check or
prognostic features (Oil Life Monitor, Filter Life
Monitor and Transmission Health Monitor) using
the pushbutton shift selector.
Illuminated at startup for a bulb check, this
indicator will then be turned off if no service
conditions exist.

DESCRIPTION OF AVAILABLE RANGES

R (Reverse)

Press the «R» button to select reverse.
Completely stop the vehicle and let the engine
return to idle before shifting from forward range
«D» to reverse «R» or from reverse to forward
range. The reverse warning signal will be
activated when this range is selected.

N (Neutral)

Use this position to start engine. Select «N»
(Neutral) when checking vehicle accessories
and for extended periods of engine idle
operation; parking brake must then be applied.
The pushbutton shift selector automatically
select «N» (Neutral) when the ignition switch is
turned ON.
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The automatic transmission does not have a
park «P» position. Select «N» (Neutral) and
apply parking brake when the vehicle is left
unattended. An audible alert will sound if the
engine is stopped and the parking brake is not
applied.
WARNING
Before leaving driver's seat, always put the
transmission in NEUTRAL and apply parking
brake.
WARNING
The vehicle service brakes or park brake must
be applied whenever NEUTRAL is selected to
prevent unexpected vehicle movement.