2006 SORENTO WAS PURCHASED IN NOV 2005. JAN OF 2006 THE CHECK ENGINE LIGHT CAME ON AND I WAS TOLD IT WAS DUE TO POSSIBLE LOOSE GAS CAP. FIRST TIME TAIL LIGHT WENT OUT WAS IN JULY OF 2006. RIGHT REAR TAIL LIGHT WAS REPLACED. IN OCTOBER OF 2006 A TAIL LIGHT BULB WAS REPLACED DURING MY 15,000 MILE MAINTENANCE. IN NOVEMBER 2006 RIGHT TAIL LIGHT WENT OUT AND KIA REPLACED BULB ONCE AGAIN. IN DECEMBER OF 2006 LEFT TAIL LIGHT WENT OUT AND CHECK ENGINE LIGHT CAME ON. BULB WAS REPLACED AND I WAS TOLD MY SPARK PLUGS WERE MISFIRING AND WERE REPLACED. A DAY LATER MY CHECK ENGINE LIGHT CAME ON AGAIN. I AM NOW TRYING TO SEE WHAT DAY I CAN TAKE OFF OF WORK YET AGAIN TO GO AND HAVE THE CHECK ENGINE LIGHT LOOKED AT. *NM