2010 CHEVROLET AVALANCHE Electronic Stability Control Esc Problems

I AM VERY DISASIFIED WITH THE WAY THE ISSUE HAS BEEN HANDLED. I DRIVE A 2010 CHEVROLET AVALANCHE LTZ WITH 111,000 MILES ON IT. I PURCHASED THIS VEHICLE IN 2005 WITH 38,000 MILES. A YEAR LATER DURING THE SUMMER TIME I BEGAN TO HAVE ELECTRICAL ISSUES (WHILE IN MOTION VEHICLE GUAGES START SPAZZING OUT GOING UP AND DOWN, RADIO CUTS IN AND OUT, DOOR LOCKS CYCLE UP AND DOWN AND VEHICLE STALLS, DOESNT SEEM TO ACCELERATE AND SHIFT INTO SECOND GEAR. I HAVE BEEN STRANDED IN THE MIDDLE LANE OF THE FREEWAY TRAVELING 60 MILES PER HOUR WHEN SUDDENLY IT BEGINS TO ACT UP. THIS IS A MAJOR SAFETY ISSUE WITH THREE CHILDREN IN THE VEHICLE AND MULTIPLE CARS DRIVING AT THE SAME SPEED AS I TRY TO GET OVER TO THE SHOULDER TO SHUT OFF MY VEHICLE BUT SEEMS STUCK IN NEUTRAL PREVENTING ME FROM QUICKLY GETTING OFF THE...

MY DASHBOARD CRACKED FOR NO REASON. IT'S BEEN KEPT OUT OF THE SUN AND HIGH TEMPERATURES. ALSO BACK UP SENSORS STOPPED WORKING, I HAD THEM REPLACED BY THE DEALER. BUT ONLY LASTED 6 MONTHS

STABILITRAC AND TRACTION CONTROL LIGHTS CAME ON ALONG WITH SERVICE BOTH AND THE CHECK ENGINE LIGHT IS ON AND SOMETIMES FLASHES. TRUCK IS IDLING VERY ROUGH AND SEEMS TO DOWNSHIFT HARD FROM 2ND TO 1ST.