I replied to you in the other thread - but for everybody else, I think federal warranty is 8/80 and Chevy powertrain is 5/100, so figure 8/100 on these components. Someone correct me if I am wrong on this.Hello, on my second CEL at 7500 miles and looks like another DEF issue on my CTD. The first was a P24AE for a particulte matter sensor, now a P11D7, probable NOX sensor. Does anyone now how long the smog related components are warrantied for? I hope and pray its longer than 36 months or we will be paying for these issues out of pocket someday. :sad: