As GM Authority covered previously, the 2025 GMC Sierra HD was initially available with a total of 19 different wheel options. Now, however, GM Authority has learned that one of these wheel ...

The transmission is a[n] 8-Speed Automatic with rear-wheel drive. How big is the 2025 GMC Sierra 1500 Pro Regular Cab Standard Box's fuel tank? How efficient is a 2025 GMC Sierra 1500 Pro Regular ...

A capless fuel filler is now standard on all 2017 GMC Sierra and gasoline-powered Sierra HD pickup trucks. Three new packages have been added to the GMC Canyon lineup for 2017. The most significant ...

There is a significant boost in fuel economy ... four-wheel-drive, V-8 powered, special off-road oriented light-duty pickup truck. Highlights: GMC extensively updated its Sierra 1500 pickups ...