Owners may contact Chevrolet at 1-800-630-2438; Cadillac at 1-866-982-2339; or GMC at 1-866-996-9463. Share your opinion on the 2003 GMC Sierra 2500.

It’s important to carefully check the trims of the car you’re interested in to make sure that you’re getting the features you want, and aren’t overpaying for those you don’t want.

These cars are a great deal for Sierra 2500 HD SLT Wideside Crew Cab shoppers. Click below to find your next car.

These cars are a great deal for Sierra 2500 HD SL Wideside shoppers. Click below to find your next car.

This has become a season for heavy-duty trucks, with GMC ... The Sierra HD goes on sale in early 2023, with the AT4X following later in the year. It competes with the Chevrolet Silverado 2500HD ...

This has become a season for heavy-duty trucks, with GMC revealing its upcoming 2024 Sierra HD, right on the heels of the unveils for the related Chevrolet Silverado HD and updated Ford Super Duty.