PREVOST X3-45 VIP 2017 Owner'S Manual Download

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Controls and Instruments

4-19

A rectangle around each pressure / temperature
reading of the tires that have an issue is blinking
to draw the attention to the defective tires.

In  the  case  of  multiple  errors  at  the  same  time,
the  highest  priority  error  is  displayed  at  the
bottom.  “Flat  Tire”  has  the  highest  priority
followed  by  “High  Temperature”,  “Not  all  tires
mon

itored” and “Tire pressure not Optimal”.

To  get  the  driver’s  attention  to  the  alarms,  the
bottom  section  of  the  screen  where  the  alarm
message  appears  will  blink  to  reverse  contrast
at the following rate: 0.7 sec normal contrast, 0.3
sec  reverse  contrast.  Pressing  any  key  will
acknowledge  the  alarms  that  are  considered  as
non critical and stop the blinking of these alarms
message  for  the  remaining  of  the  trip.  The  non
critical  alarms  are:  “Pressure  not  optimal”  and
“Not all tires monitored”. The “flat tires” and “high
temperature”  alarms  are  critical  and  will  keep
blinking  even  when  a  key  is  pressed.  If  a
different  alarm  occurs,  blinking  will  start  again.
The

blinking

rectangle

around

the

pressure/temperature readings is not impacted
by the acknowledgement and keeps blinking
until the error condition disappears.

The spare tire does not contribute to alarms and
so never blinks.

On the road, the TPMS display shows one of the
5 previous screens.

In the event of a temperature alarm, the display
switches automatically to temperature readings.

The driver can also press any of the menu keys
to momentary  switch  the  display  to temperature
readings.  In  this  case,  the  temperature  reading
appears  for  15  seconds  and  the  display  returns
to pressure.

The switching to temperature by pressing a key
does

not

take

place

there

acknowledgeable alarm active, since in this case
pressing the key does acknowledge the alarm.

The switching to temperature does not take
place either if there is an alarm of Temperature
or Flat Tire.

The  switching  to  temperature  works  when  the
bottom  message  indicates  either:  Tire  Pressure
OK, Pressure Not Optimal non flashing or not all
tires monitored non flashing. When the switch is
done  to  temperature  readings,  the  bottom
portion  of  the  screen  is  not  affected  and  still
shows the status message.

NOTE

High temperature is not likely to occur during
the pre-trip.

The pressure and temperature readings are
continuously

updated

with

the

displayed

readings  of  the  wheel  having  issues  blinking.
The  bottom  line  message  is  automatically
updated  to  the  highest  priority  alarm  prevailing.
There  is  a  hysteresis  on  the  alarm  levels  to
assure that the error conditions do not flicker ON
and OFF.

On the occurrence of an alarm, a beep will
sound. The alarm beep could be turned OFF in
the alarm settings menu.

Spare tire:

The  spare  tire  is  monitored  but  it  is  not  taken
into  account  when  setting  the  bottom  alarm
messages.  This  is  to  prevent  unnecessary
alarms  that  would  otherwise  occur,  if  for
example,  the  spare  tire  is  removed  from  a
vehicle.

The  user  will  have  the  possibility  to  check  the
pressure  of  the  spare  tire  by  accessing  the
TPMS  display  menu.  For  vehicles  that  have  no
spare  tires,  the  title  “spare  tire“  will  still  appear
on the screens but the pressure will remain with
two dash lines at all time.

Post Trip Operation

When  parking  the  vehicle  (park  brake  applied),
the  TPMS  display  keep  the  drive  mode  display
active. The driver can press any keys to get the
bottom  lines  showing  the  status  information
replaced with the menus.

The  pressure  readings  are  still  displayed  and
updated  as  new  readings  are  received  and  the
readings  are  blinking  if  not  within  the  optimum
pressure range.

From this point the user can scroll through the
menus to get more detailed information and