Classy Interior, quiet and comfortable ride, strong acceleration and great MPG's (for trucks). The basic Sierra comes standard with a 17-Inch steel wheel, automatic xenon lamp, electric lock, Tailgate locking, Power Windows (dual and Cab crew), air conditioning, Cruise Control, a 40/20/40-Split front seat bench, folding back seat (full-width double cab, 60/40-Split cabin … [Read more...] about Manual for 2016 GMC Sierra 1500