NHTSA Complaint #11457358 — 2013 GMC SIERRA 2500

Vehicle Shows on the Dash readout that the truck must keep going to clean out exhaust keep Driving, then comes to a Slowdown, and on a slight hill Stops. When you shut it off, and start it up again, it goes about a Mile, states the same thing on the dash panel, then starts to slow down, I was in the Desert of New Mexico, Had left Flagstaff, AZ. an hour before this started happening. I had no Previous warning. Took 6 hours to reach a GMC Service Center. usually takes 2 hours to reach the same town. Cortez, Colorado. They Could NOT Help Me, they had to referred me to a Service Center in town, that Put me on his machine, and Made the Vehicle Heat up, Run HOT, and Exhaust itself for two hours, this got me to my home in Monte Vista, CO. Then No further Problems until about a Month later i started getting the Same Messages, i took it to a Service Center in AR. where he Forced the Vehicle to Get Hot, exhaust itself for four and a half hours, to Clean it out, and Clear my dash Pannel.