For 2017, the GMC Sierra 2500HD and 3500HD are now offered with a more potent Duramax 6.6-liter turbocharged diesel engine. The upgraded diesel engine paired with the 2017 Sierra HD generates 445 ...

When shopping for a used Sierra, choosing a model with a reliable braking system is essential, so avoiding the 2016 model may be a smart move. In 2017, many GMC Sierra 1500 models experienced ...