Automatic Transmission Torque Converter problems of the 2016 Toyota Tacoma

It's important to note that I own two identical 2016 Tacoma trd off road automatic and both have less than 10,000 miles. One is fine and the other has serious power train (engine/transmission) problems resulting in extremely slow acceleration and overall sluggish performance, transmission constantly shifting to compensate for lack of power, transmission slow to engage gears causing dangerous hesitation and surge, occasionally slamming into gear causing sudden jerk and lunge, cruise control in unusable due to constant gear hunting even on flat highway, vehicle is very unsafe in stop and go traffic due to hesitation and surging, and merging into traffic and busy high speed highway travel is a nightmare. The following business day after taking delivery I brought to dealer with the above complaints and was told that the computer needed to lean my driving style and it would take up to 5,000 miles. At one point dealership service tech, service adviser, and service manager acknowledged the problems and I was told that Toyota was already aware and working on a flash upgrade that they hoped would fix. I was told that I had no choice but to drive the vehicle and wait for the flash. Dealership personnel now deny any problems. I filed a claim with Toyota and dealer now refuses to try and fix the problems. This model is being shipped with very low transmission fluid according to the service tech which is certain to diminish the life of the transmission. He also said that something is wrong with the torque converter. I have filed a claim for repurchase but dealership is uncooperative and Toyota reports that after reviewing my claim that they were unable to verify any of my concerns. There are many owners reporting to be experiencing the same problems and to date Toyota has done nothing to resolve that I am aware of.