2011 CHEVROLET SILVERADO 2500 Traction Control System Problems

TL* THE CONTACT OWNS A 2011 CHEVROLET SILVERADO 2500. WHILE DRIVING 10 MPH, THE ENGINE JERKED AND SHOOK AS THE CHECK ENGINE LIGHT, REDUCE ENGINE POWER, AND SERVICE TRACTION CONTROL LIGHTS ILLUMINATED. THE VEHICLE WAS TOWED TO THE DEALER WHERE THE THROTTLE BODY AND HARNESS WERE REPAIRED. THE MANUFACTURER WAS NOT NOTIFIED OF THE FAILURE. THE FAILURE MILEAGE WAS 41,209.

NEW VEHICLE FRONT END SUSPENSION BEGAN TO RANDOMLY VIOLENTLY SHAKE AT DIFFERENT SPEEDS (ONCE @ 55 MPH & ONCE @ 70 MPH). THE SHAKING WAS SO BAD THAT THE DRIVER COULD BARLEY HOLD THE WHEEL STRAIGHT TO AVOID LOSING CONTROL & CRASHING. WHILE THIS WAS HAPPENING THE VEHICLE 4 WD LIGHT WAS BLINKING DESPITE THE FACT THAT THE VEHICLE WAS IN 2 WD. ONCE DRIVER WAS ABLE TO PULL OVER HE INSPECTED THE OUTSIDE OF THE VEHICLE TO FIND NO MECHANICAL ISSUES (NO FLAT TIRES, THINGS IN THE WHEELS, ETC...). DRIVER THEN BEGAN DRIVING AGAIN & THE VEHICLE WAS FINE AS IF NOTHING HAPPENED. DRIVER CALLED ONSTAR & THEY STATED THERE WERE NO FAULT CODES IN THE SYSTEM. SEVERAL DAYS LATER THE SAME THING HAPPENED WHILE DRIVING AT 70 MPH. THIS TIME THE DRIVER NEARLY GOT INTO A ROLL OVER ACCIDENT. HE WAS ABLE TO GET THE VEHICLE TO THE...