We have a 2014 GC Diesel Summit edition with about 5K miles on it. It popped up a request that we change the oil last week, so we took it into the dealer and had it changed. On a roadtrip over the weekend we kept getting the pop-up saying that the exhaust filter was almost full, please safely drive at highway speeds to remedy. Well, of course we were on the highway so we just kept driving, and the message kept popping up......so we just continued to acknowledge it and drive at highway speeds. Over the weekend, we drove about 180 HWY miles @ 70mph. No miles driven once we reached our destination. The next day, it decided that the problem still wasn't remedied and it put the car into limp mode. 30mph max! C'mon - 180 miles of HWY driving and the regen process still didn't work? I'm very worried about the reliability of this system. Luckily when it decided to go into limp more we were less than a mile from a dealer. We left it with the dealer (sunday, just dropped the keys in the drop box). On monday they said they wouldn't have a diesel tech in until tuesday. On tuesday, they said they didn't know how to service it and would have to take it over to the Dodge dealership. REALLY!?!?! I can't believe that Jeep would start selling these cars without properly educating their dealer service techs. And it takes them 2 days to realize they don't know what they are doing? Not impressed! Has anyone else been having troubles with their exhaust system?