2013 CHEVROLET AVALANCHE 1500 Electronic Stability Control Esc Problems

MY VEHICLE SPEED APPEARS TO BE FLUCTUATING, ENGINE BRAKING ALSO OCCURS WHEN THE SERVICE STABILITRAK LIGHTS COME ONE. I WAS DRIVING AND IT FELT LIKE IT STALLED OR THE CLUTCH KICKED IN THEN REENGAGED. ONLINE FORUMS DEPICT HUNDREDS OF OWNERS WITH THE SAME INCIDENTS. THE ISSUE AFFECTS MANY COMPONENTS OF THE VEHICLE. SOME BELIEVE THAT THE ONSTAR SYSTEM OR THE ABS MODULE IS DEFECTIVE. THIS IS A SERIOUS PROBLEM THAT MUST BE INVESTIGATED. WHEN I TOOK IT IN LAST TIME, THE DEALER CLAIMED IT WAS A FAULTY ABS SENSOR. THIS DID NOT SOLVE THE ISSUE AS THIS CONTINUES TO HAPPEN OFF AND ON AND I FELL THIS PUTS US AT RISK. THESE ISSUES HAPPEN WHILE PARKED, DRIVING, AND TURNING, BE IT ROADWAYS, DRIVEWAYS, PARKING LOTS, ETC.