Home › Forum › GMC › 2014 Sierra 1500 Brake contoller This topic contains 0 replies, has 1 voice, and was last updated by jjarach 3 years, 9 months ago. Author Posts February 3, 2014 at 2:02 pm #53127 jjarachParticipant I have a 2014 Sierra 1500 Crew Cab with towing package but i do not have the integrated brake controller. Can I add the factory brake controller? And if so, does anyone have the part number? Author Posts You must be logged in to reply to this topic.