STOPPED MY 2012 PATRIOT AT A LIGHT TO TURN LEFT. I STEPPED ON GAS PEDAL TO ACCELERATE FORWARD BUT NO ACCELERATION/REVVING OCCURRED. WHEN THE PEDAL WAS DEPRESSED NO RESISTANCE WAS FELT BUT RATHER THE PEDAL WENT TO THE FLOOR WITH NO ACCELERATION/REVVING TWICE. I REPEATED THIS AGAIN WITH NO ACCELERATION/REVVING. ON THE THIRD ATTEMPT THE PATRIOT ACCELERATED FORWARD. THE SERVICE DEPARTMENT SAID TO TURN OFF ENGINE AND RESTART THE VEHICLE TO GET THE ELECTRICAL SYSTEM IN SYNC. THE VEHICLE WAS DRIVEN ON HIGHWAY FOR 30 MINUTES THEN 15 CITY TRAFFIC, AIR TEMP 38 DEGREES, PAVEMENT DRY TO WET (MELTING SNOW). *TR