If the diesel particulate filter is near or at saturation, a message requesting
permission to initiate filter cleaning appears in the information display:
Action and Description
Message
Answer yes to this prompt and then follow the prompts
regarding exhaust position as needed to initiate Operator
Commanded Regeneration. Be sure to understand each
prompt. If you are not sure what is being asked by each
prompt, contact an authorized dealer. The display confirms
the operation has started and when it has finished. You can
also drive to clean the filter. See Active regeneration earlier
in this chapter.
Exhaust Filter Full Clean
Soon
When the system is at the point
of oversaturation, the service
engine soon light illuminates.
The following message appears in the information display:
Action and Description
Message
You cannot initiate cleaning. You must have your vehicle
serviced by an authorized dealer.
Exhaust filter over limit
Service now
Once Operator Commanded Regeneration
starts, the engine’s rpm raises to
approximately 2000 rpm and the cooling
fan speed increases; you will hear a change
in audible sound due to the fan and engine
speed increase.
It is not necessary to open the hood on the
engine compartment. Once Operator
Commanded Regeneration is complete,
the engine rpm and fan returns to normal
idling. The exhaust system remains very
hot for several minutes even after
regeneration is complete. Do not reposition
the vehicle over materials that could burn
until the exhaust system has had sufficient
time to cool. Depending on the amount of
soot collected by the diesel particulate
filter, ambient temperature, and altitude,
Operator Commanded Regeneration lasts
approximately 30 minutes.
Operator Commanded Regeneration
with Automatic Regeneration Control
(If Equipped)
If your vehicle is operated with significant
stationary operation, low speed drive
cycles less than 25 mph (40 km/h), short
drive cycles, drive time less than 15 minutes
or the vehicle does not fully warm up,
passive and active regeneration may not
sufficiently clean the diesel particulate
filter system. You can switch off automatic
regeneration until better driving conditions
are available, for example steady high
driving. You can then switch automatic
regeneration back on to clean the diesel
particulate filter.
109
F650750 (TBC), enUSA, First Printing
Fuel and Refueling
