Not one, but two ACM flashes. 10k miles, 3k miles towing a TT at 7000 lbs up and down the Rockies. This is what I got. A truck with lower mpg and turbo lag that when power is needed, it's not there. Funny thing is towing in tow mode I get 12.5 mpg overall. Lowest at 10.5, highest at 13 mpg, same as last year. Not towing at 55 - 60, I sometimes get 27 mpg but most of the time 22-24. At 75 only getting 20 mpg. The dealers I had check the truck said everything is OK. Now to my point. RAM said that there should be no change in performance. To that I say BS! I may have to go over to the darkside for a new truck.