Good morning everyone. Was hoping someone could confirm some info for me. Woke up yesterday morning and got a check engine light. When I checked the code it was P204F DEF issue. THe situation is that my wife has a surgery in Miami on Monday and I live in SC so we were planning on driving down on Friday but i was reading that the truck will go into limp mode at some point. Someone else pointed out to me that the 2020 wont go into limp mode it will just give me a countdown and get to a point where the engine will not start. Can anyone confirm that? My biggest worry was that I would be driving on the highway and the truck would go into said limp mode. I appreciate all of your help.