My 2020 2500 has under 5k on it and the transmission started slipping while shifting on small inclines at low speeds. It happened all the sudden and was so bad that I had to pull over to allow cars to pass until I could pull into a parking lot and call my dealer. They told me to bring it in. I limped my way to the dealer 5 miles and had one of the service reps drive it to verify that what I said was happening was actually happening. When it slipped was during a gear shift and if you didn’t pay attention to it the rpm would peg out. I had to let off the gas allow the fine to idle down and ease on the pedal again. Anyone have any similar experiences? Waiting on words from the dealer