Shelley Glassgow

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.