I HAVE WRITTEN AT LEAST 1-2 LETTERS TO GMC, SPOKE W/REPS FOR HOURS FOR YEARS, REACHED OUT TO SM, & ATTEMPTED TO HANDLE THE ISSUE MYSELF, & I AM DISGUSTED & FURIOUS AT THE WAY GMC HAS BRUSHED OFF LOYAL, PAYING CONSUMERS W/NO REGARD. MY VEHICLE WAS PURCHASED BRAND NEW OFF OF THE LOT & I LOVED IT. AFTER HAVING MANDATORY RECALL WORK DONE IN 2010, THE VEHICLE WAS NEVER THE SAME. MY PASSENGERS WERE OFTEN TIMES FRIGHTENED BY THE UNFAMILIAR HANDLING OF A 2006: IT JERKED, BUCKED, CUT OFF, & OFTEN TIMES WOULD NOT CUT BACK ON. ONCE, WHEN DRIVING A FRIEND THAT SERVES IN THE MILITARY, I WENT TO MAKE A LEFT TURN & THE CAR CUT OUT OF THE TURN & TURNED OFF. IF TRAFFIC WOULD HAVE BEEN COMING, WE BOTH WOULD HAVE DIED THAT DAY. I CRIED & BEGGED GMC FOR YEARS THAT I FEARED FOR MY LIFE & SOMETHING WAS VERY WRONG W/THE CAR. THEY DENIED ANY KNOWING OF MY ISSUE & MADE ME PAY HUNDREDS AFTER HUNDREDS IN DIAGNOSTIC FEES THAT WERE FRUITLESS LABOR. DEALERS & REPS MADE IT SEEM AS IF I WERE CRAZY & JUST TRYING TO BE PROBLEMATIC INSTEAD OF HONESTLY ADDRESSING MY ISSUE & TAKING ME SERIOUS. ONCE I FINALLY RECEIVED RECALL PAPERS, MY CAR CEASED TO TAKE ANY MORE ABUSE. THE ENGINE HAS BEEN YANKED & KNOCKED TO THE POINT OF EXHAUSTION & WHAT WAS ONCE MY MOST PRIZED POSSESSION IS NOW A NON-MOVING MASS SITTING IN THE DRIVEWAY. I HAVE ACCRUED A NUMBER OF SPEEDING TICKETS DUE TO THE SPASTIC SPEEDOMETER MOVING OUT OF CONTROL (WHICH I TOOK VIDEOS OF & SENT TO GMC), SCRUNCHED THE FRONT OF MY HOOD DUE TO THE CAR LOCKING UP