2014 THOR MOTOR COACH CHATEAU Vehicle Speed Control Problems

I WAS DRIVING OUR 2014 THOR CLASS C MOTORHOME WITH A 2013 CHEVROLET EXPRESS ENGINE WHEN AFTER STARTING IT AFTER DINNER ON THE WAY BACK TO OUR RV SITE, THE ENGINE LIGHT WENT ON AND A MESSAGE FLASHED "ENGINE POWER REDUCED". THE MAXIMUM SPEED I HAD WITH THE GAS PEDAL TO THE FLOOR WAS 25 MPH. I BARELY MADE IT 2 MILES TO OUR SITE AND ARRANGED TO HAVE THE RV TOWED TO A REPAIR FACILITY NEARER OUR HOME IN WASHINGTON STATE. THE SERVICE ADVISOR AT BLADE CHEVROLET INDICATED THAT THE ELECTRICAL COMPONENTS OF THE RELAY FEED B CIRCUIT WAS MIS-WIRED AND WAS PULLING POWER FROM THE O2 SENSOR NOT THE MIRROR OR BACKUP CAMERA CIRCUIT. WE WERE ADVISED THE REPAIRS WERE ONLY PARTIALLY UNDER WARRANTY AS WE HAD PURCHASED THE RV IN SEPTEMBER 2013 AND THOR WOULD NOT AUTHORIZE PAYMENT FOR REPAIRS. PART OF THE REPAIRS WERE COVERED BY...