 I purchased a 2010 Hyundai Santa Fe in February of 2010.  Since day one I have experienced fast idle upon starting (1500 rpm), hard shifting, A/C that won't work when idling and then no A/C at all and a "thumping" in the cabin of the vehicle (right about center console location). After repeated trips to the service dept. the fast idle still exists, the hard shifting still exists, and the A/C has been fixed. I was horrified when the service dept. told me that the transmission  may have to be replaced but they would have to get the car to "relearn" something or other (what??). I'm going back to the dealership and I want a new transmission or a new car - simple as that. Totally unhappy.