Normal
Don't know if this has already been noted, make sure you have your dealership check your transmission fluid level!! I was having issues while driving in sport mode, the truck would buck and hesitate while shifting through the lower gears, then the other day I was giving her the beans in sport mode and totally lost power, I was pressing the gas and she was slowing down. Brought it to the dealership and they found it was 1 full quart low. They filled it up and it seems to have solved the problem, we shall see, I only drove it from the dealership to home (approx. 30 miles). Apparently these transmissions are extremely finicky and will do some weird stuff if they are not completely filled with ATF. They hold around 13qts of ATF.