4-34 Controls and Instruments
DOB 1300-1556 PA-1639 Operator's Manual 2020 X3-45 Commuter
POP-UP MESSAGES
Pop-up Pictograms
PICTOGRAM DESCRIPTION
High Engine Oil Temperature
Engine Coolant Temperature
CHECK ENGINE
COOLANT LEVEL
AT NEXT STOP
Low engine coolant level
Warns the driver that the engine coolant level has reached the recovery tank low level
switch. Add coolant whenever possible.
ENGINE COOLANT
LEVEL CRITICALLY
LOW
Critically low coolant level
Warns the driver that the engine coolant level has reached the surge tank low level
switch. Stop and add coolant.
Low Engine Oil Pressure
High Transmission Oil Temperature
This pictogram indicates that the transmission oil temperature is too high. Turn the
transmission retarder off to allow the oil to cool down.
Allison Transmission– Oil or Filter Replacement Required
This pictogram may be displayed with many different messages. Pay attention to the
displayed message which can advise that the transmission oil or filter change is
necessary. Refer to Appendix C for more information on the Allison transmission
prognostic features (oil life monitor, filter life monitor, transmission health monitor).
Low Brake or ABS Air Pressure
The message associated to this pictogram is “Low System Brake Air”. Warns the driver
that the brake air system pressure of the primary or/and secondary system has
decreased below 85 psig. Do not drive the coach when the brake air pressure is low.
A/C System Pressure High
This pictogram indicates that the A/C system pressure is too high. If the A/C pressure is
too high, the compressor clutch is disengaged, but the fans remain activated.
NOTE
When outside temperature is high, it is possible and normal for that pictogram to
appear.
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