“GMC’s AT4X trim, which will be available across the entire GMC truck lineup, offers customers more premium choices when it comes to ‘do-it-all’ capabilities,” Duncan Aldred, global vice president of Buick-GMC, said in a statement. “Each model delivers unique strengths, with the all-new Sierra HD AT4X taking it to the max, giving our customers the most luxurious and most off-road capable HD we’ve ever offered.”
The Sierra HD AT4X comes with available trailering assistance technologies, including transparent trailer view for both gooseneck and fifth wheel trailering, trailer side blind zone alert and adaptive cruise control with trailering. As many as 14 available camera angles cover everything from the hitch view to the rear side view with a trailer length indicator. It provides up to 18,500 pounds of available trailering capacity, GMC said.
