Got my Onstar diagnostic report today and there's a recall listed on it. GM # 2017337 DPF Sensor Diag. Fault. Didn't someone from Canada have something similar awhile back? The ECM isn't properly diagnosing a fault in the system and they need to reprogram it. I'm debating on doing it now or waiting till my 2nd oil change, around 67% on ELM right now.