Transmission Failure problems of the 2011 Hyundai Sonata Hybrid

I am experiencing a second issue with the transmission in my 2011 hybrid sonata. The transmission died once at around 80,000 miles and was rebuilt by Hyundai approximately 2 years ago. At the time it originally failed, my transmission experienced the same symptoms that many other owners complained about before it finally experienced a total failure and was dead on the road. Recently (now at 120k miles) my car has started showing the same symptoms that preceded the original failure. This time, however, my vehicle is out of warranty so I willl have to decide whether to invest in another replacement that will also eventually fail or to just scrap the car and cut my losses. Before total failure the reported symptoms do not generate any codes that the dealer can use to diagnose the problem. This was my and apparently many other owners' have experienced the same, before total failure. I had my car in the dealer for several visits during which they simply kept blaming outdated programming that they then updated, but could never recreate any of the symptoms I had complained and even recorded on video and showed them. They said Hyundai could not approve any service to the transmission unless they had "codes" indicating a problem was present. These failures, especially in the hybrid models for at least the 2011 and 2012 model years seem more than random. I believe there is a manufacturer defect in these hybrid transmissions and that Hyundai probably is well aware that there is a systemic problem. I'm sure they have data that shows this is a real problem, and not something related to driving patterns, conditions, maintenance, geography, climate, etc. Please ask Hyundai for their cooperation by releasing data related to transmission failures on these model and years and ask them to look into an engineering issue and possibly issue a recall and/or additional warranty coverage.