NHTSA Complaint #11373556 — 2012 CHEVROLET SONIC

FIRST PROBLEM STARTED WHEN RADIO REMAINED ON AFTER KEY REMOVED FROM IGNITION. RADIO WOULD TURN ON AND OFF WHEN CAR WAS OFF AND DRAINED NEWLY REPLACED BATTERY. ADVISED TO REMOVE FUSE AS TEMPORARY FIX. CAR WAS ALSO LOSING POWER WHEN HIGHWAY DRIVING (UP TO 70 MPH). I DON'T SPEED, BUT CAR STRUGGLED TO GO ABOVE 70 MPH. THOUGHT I SMELLED SOMETHING BURNING, HAD RADIATOR CHECKED, OIL CHANGED, FLUIDS ADDED AT BEGINNING OF OCTOBER. THREE WEEKS LATER ON CITY STREET, SLOWING FOR TRAFFIC WHEN CAR LOST POWER. WHEN TRAFFIC STARTED MOVING, CAR CONTINUED TO SLOW TO COMPLETE STOP IN THE STREET DESPITE STEPPING ON GAS. WAITED 25 MINUTES FOR TOW, BUT WHEN TOW DRIVER CAME, CAR WAS ABLE TO START AND MOVE. LESS THAN AN HOUR LATER, THE PROBLEM HAPPENED AGAIN AND CAR WAS TOWED. AT MECHANIC, COMPUTER CODES INDICATED LOW/NO TRANSMISSION FLUID (EVEN THOUGH FLUID WAS ADDED AT OIL CHANGE ONLY THREE WEEKS PRIOR). NO EVIDENCE OF LEAKS. MECHANIC ADDED FLUID AND WENT FOR RIDE ON SUBURBAN BACK ROAD, CAR LOST POWER AFTER 10 MINUTES. HE HAD TO WAIT APPROX 20 MINUTES FOR CAR TO MOVE AGAIN. HE DRAINED TRANSMISSION FLUID AND FOUND METALLIC BITS, AND SAYS TRANSMISSION WOULD LIKELY NEED REPLACING. CAR HAS FAIRLY LOW MILEAGE '54K MILES' AND HAS BEEN PROPERLY MAINTAINED. ALSO CAR WAS PREVIOUSLY SERVICED BECAUSE KEY WAS STUCK IN IGNITION.