NHTSA Complaint #11464922 — 2019 RAM 2500

When driving down the road, intermittently my truck will lose throttle input. I get a check engine light and the electronic throttle control light. this is extremely dangerous when pulling out into traffic or even pulling out onto a higher speed road because the truck will not let me accelerate. It will just sputter and I have to fight it to about 35mph when I can activate cruise control then am forced to drive only using cruise control no matter what the road or traffic is like which is also not very safe. So far, I am at 3 service appointments over the span of about a month and a half, over $500 invested and the dealer cannot find the culprit or issue causing this. I know that fault code P2121 is set off but it does not lead to much.