NHTSA Complaint #10489394 — 2012 CHEVROLET SONIC

IDLES ROUGHLY, IDLE INCREASES DRAMATICALLY WHILE THE CAR IS AT A STOP, AND THE ENGINE STALLS VERY FREQUENTLY, REGARDLESS OF TEMPERATURE OR WEATHER CONDITIONS. ON START-UP, OR WHILE STOPPED WITH THE ENGINE RUNNING, THE IDLE WILL BECOME ROUGH AND VARY BETWEEN 200-3,000 RPM, BUT NOT STALL. ALSO AT TIMES, WHILE STOPPED, THE IDLE WILL INCREASE FROM NORMAL, SMOOTH IDLE UP TO ABOUT 3,000 RPM FOR APPROXIMATELY ONE SECOND, THEN DROP BACK DOWN TO 750 RPM (NORMAL IDLE SPEED) WITHOUT TOUCHING THE ACCELERATOR. THE ENGINE WILL ALSO STALL AT PARKING LOT SPEEDS WHEN I PUSH IN THE CLUTCH TO SHIFT FROM 2ND TO 1ST GEAR. THE CAR ALSO OFTEN STALLS WHEN PULLING OUT FROM A STOP. A RE-START CANNOT BE ATTEMPTED FOR APPROXIMATELY 3 SECONDS. TURN THE KEY, NOTHING HAPPENS. I'VE OWNED THIS VEHICLE (1.4L TURBO ENGINE WITH 6 SPD MANUAL TRANSMISSION) SINCE 05/21/2012, AND OVER 8,000 MILES LATER, IT STILL IDLES ROUGHLY AND STALLS EVERY TIME I DRIVE IT. THE DEALERSHIPS SAY, "CANNOT REPRODUCE. OPERATING TO SPECIFICATIONS." *TR