The Big Horn just went into the shop for tranny problems. Not shifting from park to drive and when it does, it slams into gear, not shifting gears, going from park to drive at times takes several seconds.
This is not normal and the service manager agreed. He seems to think it is the inline pressure switch.
Hopefully we will find out today before going to the beach. Not a good way to start a vacation with a new truck, and my first Ram.