Automatic Transmission Control Module problems of the 2010 Hyundai Santa Fe

The weekend we purchased our 2010 Hyundai Santa Fe limited, v6, while driving in area with moderate grades vehicle had trouble shifting between 1st & 2nd gears, 2nd & 3rd gears. We thought it could be the area we were driving in, so we continued to drive it to see if that was it. It was not. Hard shifting has continued for the complete extent of our ownership commencing at the start. On 12/7/2010, took the vehicle in to be checked, cause: found transmission jerking. Module assy-auto trans control re, reset adaptive trans values. Recall, p0111, ecm update, performed camp tc7. Bring back if continues after a couple weeks. It did continue, but I am a busy person. On 4/21/2011, returned again stating that vehicle was continuing to shift hard, jerking. Dealer svc states could not duplicate. Vehicle duplicated for me on way home from svc appt. On 6/10/11, returned again for same problem with hard shifting at low speeds, jerking. Cause: tcm upgrade, re-reset adaptive trans values, after which svc dept said could not duplicate again. Svc mgr states that a new reflash had been issued since they upgraded it last on 12/7/2010. Thru research I find no new upgrade has been released on svc messages/notifications. I believe I've been mislead. I am positive that the vehicle will do this again. Also, intermittently when only cranking the vehicle and before the vehicle is put in gear it will immediately have a feeling of a large "bang or slam" and then lunge forward even though still in park. The vehicle also makes "popping" sounds when in park kind of like small "backfires". I have also asked them to investigate this and did not get a satisfactory response. They state that all of these symptoms are connected to the "new reflash" that has come out since the 12/7/2010 svc appt. It "should" fix it. I say recall it.