My truck says something to the effect of filter 90%, regeneration required now, why is it saying this, and why is it not doing it? It's acting like it's waiting for a response from me or something, but i have no way of making it regen, as far as i know?????

Just had H&S taken off and put back to stock, as i am getting ready to trade the truck in, never have seen this message, and i ran it stock for the first 10k????

Need HELP!!!

Can you take the truck to interstate and drive it some? I found this thread, hope it helps.

https://www.cumminsforum.com/forum/07...aning-dpf.html

Copied & pasted from 2012 owners manual. Hope this helps.

Exhaust System – Regeneration Required Now
“Exhaust System—Regeneration Required Now” 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 System
— Regeneration Required Now” 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 Filter XX% Full
Indicates that the Diesel Particulate Filter (DPF) is approaching
full.
Exhaust System – Regeneration In Process
Indicates that the Diesel Particulate Filter (DPF) is selfcleaning.
Maintain your current driving condition until
regeneration is completed.
Exhaust System – Regeneration Completed
Indicates that the Diesel Particulate Filter (DPF) selfcleaning
is completed. If this message is displayed, you
will hear one chime to assist in alerting you of this condition.

I was driving home, when i first noticed it, about half way into a 50 mile drive, one would have thought it would have started, but maybe it was to short of a drive? I even tried driving the crap out of it, and running in 5th gear (as speeds were 55-60mph), to get rpms up and still nothing. Going to call dealer in the am and see what they say. Thanks for the info though!!