Can brake controller affect shift lever?

I just traded a jeep liberty for a nissan pathfinder. I had the brake controller removed from the jeep and installed on the pathfinder. It seems difficult to get the car out of park now. It makes a jerking motion and sounds pretty loud too as if it's popping out of gear. The jeep sometimes reacted in the same way. Is this normal when you add a controller or is it possible that it needs to be readjusted in some way? It was fine until they put the controller on today.

What kind of controller is it? Does the behavior happen only with the trailer connected, or all the time (with or without trailer)?

With an electronic controller (like the Prodigy), at the moment I can't envision how it would impact the transmission selector at all.

steverino,
I bought my jeep liberty and my 3023 TM together. The brake controller was already installed and I don"t have any paperwork on it. It says Draw Tite on the front of the controller.