PREVOST X3-45 COMMUTER 2018 Operator'S Manual Download

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4-34 CONTROLS AND INSTRUMENTS

PA1633 X3-45 Commuter Operator’s Manual

NOTE

When the diagnostic display mode has been
entered, the MODE button is used to view and
toggle through diagnostic code information.
Refer to appendix B  for more details about
diagnostic code display procedure  and
fluid level check  using the pushbutton shift
selector.

PRIMARY AND SECONDARY SHIFT MODES

In the

primary shift mode

which is the default

mode at starting of the engine, the transmission
controller automatically selects between
ECONOMY and SUPER ECONOMY shift
schedules, based on the vehicle’s actual
payload and the grade on which it is operating.
This is called Load Based Shift Scheduling
(LBSS).

In the

secondary shift mode

, only the SUPER

ECONOMY shift schedule (SESS) is available.
No switching is done between shift schedules.
The secondary shift mode is available only if
selected by the driver, using the MODE button.
When the secondary mode is activated, “MODE”
illuminates on the display.

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.

NOTE

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 brake or park brake must
be applied whenever NEUTRAL is selected to
prevent unexpected vehicle movement.

CAUTION

Diesel engines should not be idled for
extended periods at "slow" idle. For extended
idling, engine should run at "fast" idle.

CAUTION

Do not allow your vehicle to "coast" in neutral
«N». This practice can result in transmission
damage. Also, no engine braking is available
in neutral.

D (Drive)

Use this position for all normal driving
conditions. After touching this pad, the vehicle
will start in first or second range and will
automatically upshift to a higher range as output
speed increases. As the vehicle slows down,
output speed decreases, the transmission
automatically downshifts to the correct range. If
a locked brake or a slick surface condition
should occur, the TCM (Transmission Control
Module) will command converter operation
(disconnect lockup) and inhibit downshifts for a
period of time or until normal wheel speed has
been restored.

IMPORTANT NOTE

Brake pedal must be applied when selecting
«D» (Drive) otherwise the transmission will
stay in «N» (Neutral).

NOTE

The transmission should normally be allowed
to shift by itself, but manual shifting can be
done as described below.