First Ever Sierra HD AT4: Exterior Design | GMC

With exclusive black chrome accents and ingenious design solutions to help with loading and hauling, see why the First Ever GMC Sierra HD AT4 blurs the lines of aggressive and impressive.

Subscribe to GMC:
Facebook:
Twitter:
Instagram:

gmc,professional grade,general motors,like a pro,#gmc,#likeapro,canyon,acadia,sierra,yukon,terrain,new,2017,2018,all-new,truck,suv,cuv,pickup,