I bought two of these for my Big Horn:
Part #: 68374994AC 2022 RAM 2500 Smart Remote Key Fob w/ Remote Start, Power Tailgate. Brand new 2022 RAM 2500 Truck Smart Keyless Entry Remote Key with po
www.carandtruckremotes.com
I had my buddy at the dealer program them both. Took maybe 5 minutes.
The tailgate worked as soon as the remotes were programmed. He didn't have to do a single thing for the tailgate to drop.
I didn't have remote start - so he just added the sales code and boom, both remotes now have tailgate drop and the remote start.
Silly they all just don't come like this. It should be standard.