ok guys, so i got a 2020 trailhawk. I love my truck. However it does some weird stuff when shifting. First of all it seems like it is slipping when you take off in second gear. In snow mode or manual setting. It slips when it shifts into third gear on almost every shift. When going uphill in third at aroind 2000 rpm if i accelerate about half pedal it will rev up and seems as though you are taking off in a stick shift from a dead stop. It still picks up speed but will slip a bit then grab ahold and take off. I have all the most recent updates and only have 4800 miles on it. Dealership said they will replace the valve body but i have heard so many stories about this making things worse. What should i do?