I received a message saying my filter was at 90% full and it was correcting itself is this or do i need to look at replaceing the filter
No you do not have to replace the filter. If you didn't drive enough to complete the last few regens you will get this warning to drive at highway speeds until the regen completes.
Here's some info. from the owners manual.
Intervention Regeneration Strategy — EVIC
Message Process Flow
This engine meets all required diesel engine emissions
standards. To achieve these emissions standards, your
vehicle is equipped with a state-of-the-art engine and
exhaust system. These systems are seamlessly integrated
into your vehicle and managed by the Powertrain Control
Module (PCM). The PCM manages engine combustion
to allow the exhaust system’s catalyst to trap and
burn Particulate Matter (PM) pollutants, with no input or
interaction on your part.
Additionally, your vehicle has the ability to alert you to
additional maintenance required on your vehicle or engine.
Refer to “Electronic Vehicle Information Center (EVIC)”
in “Understanding Your Instrument Panel” for further
information.
•
Exhaust System — Regeneration Required Now —
_Exhaust Filter XX% Full Safely Drive at Highway
Speeds to Remedy_ will be displayed on the Electronic
Vehicle Information Center (EVIC) 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 required 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 EVIC. 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
driving 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
messages indicates regeneration has been disabled due
to a system malfunction. At this point the engine
Powertrain 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 condition it will be necessary to have your
vehicle serviced by your local authorized dealer.
CAUTION!
See your authorized dealer, as damage to the exhaust
system could occur soon with continued operation.