Hi! I'm new to the forum but came here looking for advice info after having the emissions modification on my 2014 Jeep GC Limited 4x4 and having nothing but problems since. I have gotten the same regen/DEF system full or whatever messages as others on the forum. I've had to have it towed twice since the modification. Once the dealership kept it for a week and returned it saying it was fixed. About 3 weeks later I had to have it towed again and now they've had it for a month with no news on when I will get it back. The last I heard was December. I called the class action attorneys and they suggested that I pursue a "buyback". Has anyone had experience or luck with this?