GMC Sierra Trailer Brake Controller

Welcome to the Gerry Lane Buick GMC Video Channel. We hope you find all of the Buick GMC videos helpful. You can get more information and a fast quote by visiting www.GerryLaneBu... If there is a particular video that you would like to see or find how to operate a particular feature you can reach us at 225-931-3198. In this video you will find information on the 2014 Sierra Rear Vision Camera

[@mb20143]

God damn it. Why can't any video explain what that other button is for? Doesn't even say in the manual

[@jordanfriar8732]

The slider button?