I really hate the owners manual for my 2018 RT. It's probably the worst help manual I've ever seen. It tells me the left side of my display show trip mileage. What it doesn't tell me is how to reset it to zero. My screen shows "B" trip mileage, so I assume there is an A and a B trip setting but I cannot switch between the two nor can I reset the trip mileage. Any help would be appreciated.