Many of you have been put into retard mode due to the dumb 100% DPF due to long excessive idle times. Before I had my 2016 deleted which I highly recommend you do I had this issue before as well. Basically you have to idle the engine up with your foot to warm up the system. After about 5 minutes on high idle to get things hot simply shift it into N hold the break and hold your foot to the floor. This tricks the computer into thinking your driving so you don’t have to drive to regen. It does take a while for the first 10% to go down Im talking close to 10-15 minutes after that they do start to drop. Continue til regen is complete. Once this is complete at 0 you can run your OBD2 scanner and clear the code. Saves you money so ya theres my hack Ive done it and it works. I still highly recommend deleting it saves the engine life adds about 25-65hp depending on your ecm program you get as well as 30% better fuel mileage and about 50-60 more FPT to the rear end. Hope this helps