The Silverado HD exterior is now more visually distinguished from the Silverado 1500 with the redesign.
Aside from its roof shared with the light-duty Silverado, all other visible elements are unique to the work-focused HD truck.
The standard engine is a 401-hp, 6.6-liter V8 with a six-speed transmission.
A 445-hp, 6.6-liter turbodiesel V8 engine with a 10-speed transmission is also available.
The new truck is 10 inches longer than the previous one, which translates to more legroom.
GM claims that the new HD, when properly equipped, can tow up to 35,500 pounds.
Available safety features include forward collision warning, automatic emergency braking, lane departure warning, blind spot warning, and rear cross traffic warning.