Your vehicle is equipped with a Tow/Haul mode. The button is located on the end of the column shift lever. You can use this feature to assist when towing or hauling a heavy load. See "Tow/Haul Mode" under Towing a Trailer for more information.
The Tow/Haul mode also interacts with the Autorideā¢ feature to enhance the ride when trailering or with a loaded vehicle. See Autoride® .