GM Authority has exclusive video of a peculiar GMC Sierra HD prototype testing what may be a brand-new gasoline-fueled V8 ...

Likely sold as surplus after World War 2, this 1938 GMC COE truck spent decades in storage. But it's still in one piece.

This truck review was a heck of an experience, when the big and beautiful 2025 GMC Sierra HD 2500 Denali Ultimate arrived in ...

It was the first full-hybrid pickup truck, testing battery tech that paved the way for today's electric vehicles.

Introduction 2024 GMC Sierra HD Trucks Go Big, Powerful, and Luxurious High-tech features promise to make trailering easier ...

To meet demand for its heavy-duty pickup trucks, General Motors (GM) is adding another production day to its Flint, Michigan plant to boost output by an additional 1,100 vehicles per day. The ...

GM is issuing a recall for more than 132,000 Chevrolet and GMC heavy-duty pickup trucks over an issue with the tailgate, which may unexpectedly unlatch while the vehicle is in Park. Affected vehicles ...

In May 2026, GMC Sierra HD offers include low-interest, long-term financing, nationwide and regional lease program, $1,000 off both 2500 HD and 3500 HD configs.