operators_manual

PCC Behavior
As the vehicle approaches the top of a hill,
PCC will decrease the vehicle speed to
avoid overshooting the set-speed, in order
to avoid unnecessary acceleration on the
downward slope. This will result in a
smoother, more fuel efficient ride to the
top. Once over the crest, momentum takes
over and the system will allow a
predetermined amount of speed over the
set-speed.
If the driver has activated the vehicle’s
Auto Retarder function, the vehicle speed
may increase until it reaches the set-
speed. If the vehicle drops outside the
speed range, normal cruise control will
accelerate the vehicle back to the minimum
allowable speed. If the vehicle is equipped
with Adaptive Cruise Control (ACC) and
senses traffic slowing, it will overrule PCC
and slow the vehicle. This event will cancel
PCC. To resume the set speed, press the
"SET/RESUME" button. As the vehicle
reaches flat ground after the hill, PCC will
maintain the set-speed until the crest of the
next hill. If you are in an area where there
is no road data, the GPS signal is lost, or
there is a system fault, the vehicle will
revert to normal cruise control at the same
cruise speed that was selected for PCC.
There are many factors that may influence
or prevent a PCC event from occurring. For
example, a truck (without a trailer) may
encounter fewer PCC events than a truck
with a trailer. If your vehicle has the Driver
Performance Assistance (DPA) and you
have not used PCC for a long period of
time, the DPA may advise turning PCC ON
to improve fuel economy. If the vehicle
enters an area that is not identified in the
system's map, it will revert to normal cruise
control behavior until the vehicle enters
known map areas.
If the system detects a problem with its
software, its map, terrain, and vehicle
position then it will display a fault to the
operator. If a fault it detected, please seek
the service of an anuthorized dealer.
If you need to access the system's
software version, please use the menu
control switch to navigate to the TRUCK
INFO > PCC > within this menu you can
find PCC Soft Vers and PCC Map Vers.
Air Filter Restriction Indicator
General information about the engine air
filter restriction indicator.
An Air Filter Restriction Indicator is
installed on the air cleaner or air induction
piping so it has access to clean filtered air.
As the filter plugs and restriction increases,
a red indicator will appear in a window on
the indicator. When red appears, the air
filter should be replaced. The indicator can
be reset by pressing the button at the end
of the indicator.
DRIVING - Engine Operations
140 Y53-6047-2HEN (03/18)
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