PREVOST H3-45 VIP Owner's Manual page 101

During the pre-trip check, the pressure readings for
the different wheels become all available.
The pre-trip check ends, either when: the pressure
readings have been received for all running wheels or
the pre-trip check maximum time has elapsed. It was
selected to provide sufficient time for all wheel
sensors to wake-up and send a first reading.
The pre-trip check is aborted and the bottom menu
reappears if the park brake was active and the user
press one of the menu keys.
Upon completion of the pre-trip check, the TPMS
display will come up with one of the following
screens:
A rectangle around each pressure and 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 monitored" 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. 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 if there is an 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
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.
PA-1638 Owner's Manual X3-45 VIP
Controls and Instruments 4-53
and temperature readings are