Brake switch?? 2011 applying brakes

[Trucknogo]

Hello 2011 Sierra.  6l thought this issue was related to tranny but swapped and still happening. Feels like brakes applying while driving,was backing up driveway and noticed had to push peddle more then usual. Could hear the brake switch attached to peddle click off and on while not touching peddle. Put truck in natural while moving felt like brakes apply right away. Took ride around block then heard a click and felt like brakes released and truck started  to move easier. Replaced the ebc and the abs block over a year ago had codes for it, took to shop to get programmed no issues since. Just simply swap out the brake switch? Any programming etc to go with it? Anyone have somewhere to start? Thank you