 At 16,000 miles the battery lost a cell and left me stranded. I had the battery replaced at the dealership with out any problems,but they used another kia battery that will only last another 2 years.  At 17,035 miles the transmission has started to lock up/over heat the car, will not go into overdrive and would'nt go in to 2nd gear. I will be having it towed on monday.  I had called the dealer from the road saturday and they could not help me w/a loaner car or help arrange for a rental.   I had a mechanic check the trans. flui d and had 2 other people witness that it was full and we checked 3 times.  I am sure it is a weak defective part just as the battery was. 