Hi everyone, I'll do my best to explain. I'll answer questions as best I can. I took it to the dealership a while back while it was under warranty. But they didn't see/feel any of the problems I mentioned. They told me that I had to drive X amount of miles and bring it back. Which conveniently put me past my warranty.

Vehicle -2020 Silverado 2.7L 4x4 Automatic transmission

So my truck during cold start does not show any problems.

Engine light is still on during. Sometimes it will go away.

Once the truck gets going. It will lurch/jump forward, almost as if i got hit from the back. It appears happen as the truck switches gears.

When I come to a stop it or come out of a full stop as well.

Sometimes the engine will rev as if not in gear (this is an automatic) and then kick forward.

When going long distances the truck will seem stuck in a low gear. I think this, because the lurching stops and the rpms go high.