*Not all vehicles may be present at the show.
The all-new 2020 GMC Sierra Heavy Duty combines greater trailering capability with technologies designed to provide customers with a worldclass towing experience. The Sierra HD is highlighted by new signature lighting, including prominent “light blades” that deliver LED illumination for the daytime running lamps. Inside, the Sierra HD’s new interior has best-inclass front head- and legroom. The proven Duramax 6.6L turbo-diesel engine offers high torque, high power, low noise and exceptional durability. An all-new 10-speed Allison automatic transmission is the first-ever offered in the heavy-duty pickup segment.