One of the reason's I came back to this forum was exactly this. Seems FCA is trying to explain away some of the problems you and for me very minimally. I noticed the transmission, rarely goes to top gear, bit of hesitation when cold with a little shift hunting. I've had a regen within 500 miles of the update, then another within a few thousand miles. I think due to this, my DEF usage seems to have increased. Next within a few months I got a (paraphrasing) "the DEF system has malfunctioned, go to dealer" message. Go to dealer where it has always been serviced, and the code says the DEF injector/pump is bad, that will be some ridiculous amount of money please, like $800 and change. I said, excuse me, my settlement specifically calls out that part specifically in the list of things that are covered up to 120000 miles. Of course service agent looks at me like ECO what? Well they actually figured out that it had to be covered and quickly tried to up the bill by suggesting it was time to do a brake fluid flush which I declined. What really concerns me, as I have 83000 miles on my vehicle is that it took 2 days for that part to get from Portland to Seattle. I seen that parts availability seem to be a problem. What weird is I love the damn thing. It's a 2014, went through all of the pain of no, you must have used the wrong DEF (idiots, it's your DEF), I think they replaced the DEF injector nozzle, still the dreaded code. Finally, a new CAT and really have had no serious problems.
I have experienced only since the AEM, center indicator console goes completely dark which makes a wonderful driving experience. Not sure if some relay of connection was the cause, but it came in a cluster in a 2 wk period. Knock on wood nothing for several months.
Biggest concern, since cold weather, just recently I've seen strange spikes in my water temp, heat going completely cold to burning, to acting normal. The day I saw the water temp spike I opened the overflow cap to see what the water level was. I looked normal, and the car did not seem over heated. Any ideas of this last problem?
Forgot to mention, have not noticed any turbo lag.