NHTSA Complaint #10556257 — 2011 GMC TERRAIN

OUR VEHICLE HAS EXPERIENCED THE ROUGH IDLE AND HARD/STALLED SHIFTING SINCE WE BOUGHT IT IN 2011. IT HAS BEEN REVIEWED BY THE DEALERSHIP AND WE WERE TOLD A RECENT RECALL WOULD FIX THE ISSUE. IT DID NOT AND THESE ISSUES HAVE CONTINUED. RECENTLY, THIS ISSUE HAPPENED AGAIN, FOLLOWED BY THE CHECK ENGINE LIGHT TURNING ON, FOLLOWED BY (A FEW HOURS LATER) THE ENGINE GOING INTO "REDUCED ENGINE MODE" AND THE ENTIRE VEHICLE SHAKING UNCONTROLLABLY WITH THUMPING NOISES COMING FROM THE FRONT OF THE VEHICLE. THE VEHICLE WAS STOPPED AND RESTARTED AND WITHIN A FEW MILES, THIS SAME ISSUE HAPPENED AGAIN, WHICH WAS VERY DIFFICULT TO HANDLE AND VERY UNSAFE FOR TRAVEL IN THE CITY. WE HAD TO GET A TOW TO THE DEALERSHIP AND THE SERVICE DEPARTMENT AT THE DEALERSHIP WE BOUGHT THIS FROM SAYS THE THROTTLE POSITIONS SENSOR IS DEFECTIVE AND NEEDS REPLACED AS WELL AS THERE IS A MISFIRE IN THE INJECTORS DUE TO CARBON BUILDUP IN THE FUEL LINE. NONE OF THESE REPAIRS ARE COVERED UNDER THE POWER TRAIN WARRANTY, AND THIS VEHICLE ONLY HAS 50,000 MILES ON IT CURRENTLY. UPON RESEARCH OF THESE PART, SYMPTOMS OF THIS PART GOING OUT ARE STALLED SHIFTING OR HARD SHIFTING, AS WELL AS ROUGH IDLING. PLEASE RESEARCH THIS CASE AS I FEEL THIS IS A MORE UNIVERSAL PROBLEM THAT HAS YET TO BE ADDRESSED PROPERLY. *TR