WABCO OptiTire System Description page 68

Operation
If the system warns about several tires the tire with the most serious fault is indicated first.
Repeated pressing of the button with the question mark displays further faults.
Creeping pressure loss
Overview of fault types
ERROR
Extremely low
pressure
Low pressure
Creeping pressure
loss
High pressure
68
DISPLAY ACTION
– Stop the vehicle immediately.
– Look for the cause of the reduced
pressure.
– If necessary, also change the tire.
– Reduce your driving speed.
– Adjust tire pressure at the next
opportunity.
– Reduce your driving speed.
– Stop the vehicle at the next opportunity.
– Look for the cause of the pressure loss.
– If necessary, also change the tire.
– Reduce your speed for preventing the
tire from bursting.
– Stop the vehicle at the next opportunity.
– Search for the cause of excess pressure
(e.g. defective, overheated brake).
– Correct the tire pressure in the event of
overpressure when the tire is cold.