NHTSA Complaint #10683864 — 2010 GMC SIERRA 1500

THE FIRST TIME WAS NOV.2014 WHEN THE CHECK ENGINE LIGHT CAME ON SOLID ALONG WITH THE TRACTION CONTROL LIGHT ENGINE POWER WAS REDUCED AND THE ENGINE VIBRATED AND WOULD NOT GO OVER 20 MPH.I LEFT THE TRUCK PARKED FOR 3 DAYS AND WHEN CRANKED THE TRUCK ALL LIGHTS WERE OFF AND THE TRUCK RAN FINE.ONCE IN DEC. 2014 AND ONCE IN JAN.2015 THE SOLID CHECK ENGINE LIGHT CAME ON BUT THE TRUCK RAN FINE AND AFTER A FEW DAYS WENT OFF. THE FIRST WEEK OF FEB. 2015 THE CHECK ENGINE AND TRACTION CONTROL LIGHT CAME ON ENGINE POWER WAS REDUCED AND ENGINE VIBRATION. I WAS ABLE TO DRIVE SLOWLY ONLY TO AN INDEPENDENT MECHANIC THAT I NORMALLY GO TO BECAUSE HE WAS CLOSER THAN THE DEALERSHIP AND I WANTED IT CHECK IMMEDIATELY SINCE THE WARNING LIGHTS WERE ON.HIS CODES SHOWED THE THROTTLE BODY WITH SENSOR NEEDED TO BE REPLACED.HE STATED HE LEFT THE CODES IN EVEN THOUGH THE WARNING LIGHTS WENT OFF BECAUSE HE THOUGHT THIS WORK WAS COVERED UNDER WARRANTY.I IMMEDIATELY CALLED THE DEALERSHIP AND THEY WANTED TO MAKE AN APPOINTMENT FOR THE FOLLOWING WEEK AND WHEN I TOLD THEM ALL THE WARNING LIGHTS HAD WENT OFF THEY STATED IT WOULD PROBABLY BE A WASTE OF TIME TO CHECK ON THEIR COMPUTER. I TOLD THE DEALERSHIP SERVICE DEPT. ABOUT HOW YOU DON'T KNOW WHEN THIS WILL HAPPEN AND WHEN IT DOES YOU ARE BASICALLY STRANDED BECAUSE THE VEHICLE WILL BARELY MOVE. THE NEXT WEEK FEB.11, 2015 IT HAPPENED AGAIN AND ALL 3 TIMES I WAS LUCKY I WAS NOT IN ALOT OF TRAFFIC OR TRAVELING AT HIGH SPEEDS OR ON A STEEP GRADE.IF I WOULD HAVE BEEN THERE MAY HAVE BEEN A ACCIDENT. I HAD TO LEAVE THE TRUCK IN A PARKING LOT AND THE NEXT DAY TOOK IT BACK TO THE INDEPENDENT MECHANIC.I CALLED THE DEALERSHIP AND AGAIN THEY WANTED TO MAKE AN APPOINTMENT AND THEY STATED THE WORK WAS NOT COVERED UNDER WARRANTY SO MY MECHANIC CAME UP WITH THE SAME CODES AND FIXED THE PROBLEM.CALLED GM AND EXPLAINED THE UNSAFE SITUATION AND GOT NO CUSTOMER SERVICE. *TR