Regens will vary depending on driving style. If you idle more than average, or do mainly city driving, your vehicle will go through more regens. The "magic" with highway driving and/or towing, is EGTs (exhaust gas temps) are generally higher and can "oxidize" the particulate matter which has been "caught" in the DPF (diesel particulate filter).
IF you get an EVIC message saying your DPF is xx% full, and a regen is necessary, I would drive until the regen is complete.
** As a sidebar, after reviewing the diesel supplement, if the EVIC says
Exhaust Filter XX% Full Safely Drive at Highway Speeds to Remedy. I would plan on driving at highway speeds long enough for the regen to be complete.
(**Our GC diesel supplement reads very close to the Ram Cummins supplement. Evidently our vehicles can go through
active regen
without an EVIC message, and the EVIC only alerts us if the DPF is too full. IF you turn the vehicle off in this situation, it's no problem. This situation occurred on our GC once so far in 2200 miles, and it just smelled funny in the garage.)
So, in summation, if your EVIC says to drive at highway speeds in order for the DPF to regen, I would do that, and I would not cut off the vehicle until the EVIC says you're good to go.
Below is a link to the GC diesel supplement. Click around to get to the 2014 diesel supplement and open up and check it out!
Jeep Owners | Download an Owners Manual 2004 - 2011 | Jeep