This is the first spot I found to start post. 2014 Cruze diesel 2.0. I have the 5 volume dealer service guide from Helm publishing. They have absolutely nothing on the Diesel Particulate filter! The index only lists regen enable and service regen...I had an issue with the Charge Tube (plastic intake feeding the throttle body) blowing off the throttle body. That set the "DPF full" message, and the "reduced power mode" message. I took it to a dealer because I didn't think I could do a forced regen, The service tech didn't tell the mechanic that the intake pops off, so after $200 they did the regen, and 30 miles later it popped off again, but now had a "diesel shutdown soon" message with the other two messages. And it shut down instantly. I rigged a clamp to hole the charge tube on and took it back to the dealer. (it was there two weeks already), this time I gave them a typed out sheet of everything (intake popping off). after two weeks they diagnosed the problem was the charge tube and it cost $1200 and two more weeks. Now I have to smog it soon and I have a "low performing DPF" dtc P2002. I'm guessing if I pull the sensor and clean the soot out of it I may be able to get it back running again. The sensor seems to be after the SCR near the rear of the exhaust.