How hot do your trailer brakes get? I recently replaced my brake controller in my Tundra. The factory controller is known for its problems. I’ve been trying to find the right setting. Ive been trying to set it so the trailer will stop the truck and fully loaded trailer at about 25 mph. At this setting, the bakes are getting hot enough to push out some grease. The overheating only seems to be a problem with the stop and go in town.