• Exhaust System — Regeneration Required Now —
⬙Exhaust Filter XX% Full Safely Drive at Highway
Speeds to Remedy⬙ will be displayed in the Instrument
Cluster Display if the exhaust particulate filter reaches
80% of its maximum storage capacity. Under conditions
of exclusive short duration and low speed driving
cycles, your Cummins diesel engine and exhaust after-
treatment system may never reach the conditions re-
quired to remove the trapped PM. If this occurs, the
“Exhaust Filter XX% Full Safely Drive at Highway
Speeds to Remedy” message will be displayed in the
Instrument Cluster Display. If this message is displayed,
you will hear one chime to assist in alerting you of this
condition
• By simply driving your vehicle at highway speeds for as
little as 45 minutes, you can remedy the condition in the
particulate filter system and allow your Cummins diesel
engine and exhaust after-treatment system to remove
the trapped PM and restore the system to normal
operating condition.
• Exhaust System — Regeneration In Process Exhaust
Filter XX% Full — Indicates that the Diesel Particulate
Filter (DPF) is self-cleaning. Maintain your current driv-
ing condition until regeneration is completed.
• Exhaust System — Regeneration Completed — This
message indicates that the Diesel Particulate Filter (DPF)
self-cleaning is completed. If this message is displayed,
you will hear one chime to assist in alerting you of this
condition.
• Exhaust Service Required — See Dealer Now — This
message indicates regeneration has been disabled due to
a system malfunction. At this point the engine Pow-
ertrain Control Module (PCM) will register a fault code,
the instrument panel will display a MIL light.
CAUTION!
See your authorized dealer, as damage to the exhaust
system could occur soon with continued operation.
• Exhaust Filter Full — Power Reduced See Dealer —
This message indicates the PCM has derated the engine
to limit the likelihood of permanent damage to the
after-treatment system. If this condition is not corrected
and a dealer service is not performed, extensive exhaust
after-treatment damage can occur. To correct this condi-
tion it will be necessary to have your vehicle serviced by
your local authorized dealer.
114 UNDERSTANDING YOUR INSTRUMENT PANEL