The latest versions of code will tell you via the display if the truck is in regen mode correct? I was told during my last service (about a week ago) that they upgraded my code for me(I asked), but it definitely is not telling me when it's in regen mode.

 

Would you mind checking another one 1FTWW31R58EB10970. Coming home sunday the tail pipe is full of soot and the lower rocker panel has a black sooty film on it