Used the A E Tool and enabled the following:
set memory seat present
memory buttons DID NOT work, until I also enabled:
set memory mirrors present (the mirrors DO NOT move with memory recall, but at least the seat does)
The following is a list which I have successfully activated with the A E Tool:
Door Handle/Map Pocket LED Lights ECU Config05-D Verified Working set to enable Door Handle and Map Pocket LED lighting
Memory Mirrors ECU Config05-D/ECU Config05-M Verified Working set to enable Memory Mirrors to be set with memory button 1 or 2 on recall
Memory Seat ECU Config05-M Verified Working set to enable Memory Seat Buttons - only worked after also enabling Memory Mirrors
Heated/Ventilated Seats and Wheel ECU Config05-M Verified Working set to enable Heated/Ventilated front Seats, Rear Heated Seats and Heated Steering Wheel
Heated Wheel Material Type ECU Config05-M Verified Working set to material type of Heated Steering Wheel - Leather/Wood
Easy Exit Seat Customer Setting Vehicle Config CSM1 Verified Working set to enable "Easy Exit Seat" setting in Uconnect Settings Menu
Auto On Driver Comfort Customer Setting Vehicle Config CSM1 Verified Working set to enable "Driver Comfort Setting" in Uconnect Menu - set with 3 Options
Read the original post to see if your BigHorn has the same factory options and wires in the connectors as the pictures.
http://www.ramforum.com/threads/2016-atc-and-heat-cool-seats-wheel-problem.116456/
If you do, activate with the A E Tool, be sure to connect as per instructions...
only change one setting at a time, remove A E Tool and verify, then reconnect for next change, be careful...