2020 Nissan Titan POWER TRAIN,VEHICLE SPEED CONTROL,FUEL/PROPULSION SYSTEM

Please also reference NTB21-028, NTB21-073. The failed system appears to be the engine/transmission power control. My safety and passenger safety was at risk. A dealer did inspect in May of 2021 and was not able to duplicate and did not perform any corrective action. The problem is twofold. First the vehicle can fail to accelerate during a rolling stop (i.e. entrance into a traffic circle) and because there is no power can roll slowly into oncoming traffic. Second, the vehicle can shift erratically and is slow to shift into the next gear (high RPM before shifting) and can sometimes flair during shifting. I am now aware that Nissan is and has been aware of this issue however this issue is not currently identified as a recall. Bottom line, I think the hesitation/delayed acceleration is a safety issue and wanted to be sure the NHTSA is informed. Thank you