NHTSA Complaint #10615352 — 2012 KIA OPTIMA HYBRID

(MY REPORT IS EXACTLY THE SAME AS ID 10552403) THIS CAR SEVERELY HESITATES/STALLS AFTER COMING TO A STOP (RED LIGHTS, STOP SIGNS, YIELD SIGNS, AND ETC). CAR HESITATES/STALLS FOR ~2-3 SECONDS BEFORE ACCELERATING WHILE AT A DEAD STOP. THIS HAS CAUSED SEVERAL NEAR ACCIDENTS. WHEN IT HAPPENS, I PUSH THE GAS PEDAL TO THE FLOOR AND THE CAR DOESN'T RESPOND AT ALL FOR ABOUT 2-3 SECONDS. THIS SEEMS TO BE A SERIOUS PROBLEM WHEN PULLING OUT INTO TRAFFIC AS INCOMING CARS CAN CLOSE THE SAFETY GAP QUICKLY IN 2-3 SECONDS. COLD WEATHER CAUSES THE CAR TO HESITATE/STALL MORE OFTEN THAN WARMER WEATHER FROM MY EXPERIENCE, BUT IT'S HAPPENED WHEN CAR HAS BEEN RUNNING FOR OVER 20 MINUTES, AS WELL. I HOPE KIA WILL CHECK INTO THIS PROBLEM AS MY LOCAL DEALERSHIP HAS NO ANSWER. *TR