GMC expands All Terrain X line to Sierra HD

October 10, 2016

Although heavy duty trucks aren't exactly nimble trail machines, GMC has upped its off-road game with a new All Terrain X package for its Sierra HD pickups.

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It's the latest in a growing lineup of All Terrain X models, a trim level that the automaker has already announced for 2017 versions of its Canyon and Sierra 1500 trucks. For the heavy duty version, the packages adds the following off-road and functional goodies:

  • 18-inch black-painted aluminum wheels wrapped in big LT275/65-18 Goodyear Duratrac MT tires
  • A black sport bar mounted in the bed that's designed to be compatible with LED off-road driving lamps offered through the automaker's accessories catalog
  • A special body-color grille with its own unique insert
  • Color-coordinated door handles and trim moldings
  • A front bumper skidplate
  • Black side steps
  • Standard power-folding trailering mirrors
  • LED rear guidance lamps and amber clearance lamps
  • An automatic locking rear differential
2017 GMC Sierra 2500 HD All Terrain X

2017 GMC Sierra 2500 HD All Terrain X

Despite the four-wheeling doodads, the All Terrain X isn't a work truck. It'll come standard with the automaker's Z71 suspension, which has its own off-road shocks, and it features luxuries like an 8.0-inch infotainment system, a heated steering wheel, and heated leather seats. 

The 2017 GMC Sierra HD All Terrain X will be available in just two colors: Black Onyx and Summit White. GMC says the truck will be offered with a choice of 6.0-liter gasoline V-8 and 6.6-liter turbodiesel V-8 engines mated exclusively to four-wheel drive. The only body style that GMC plans to build with the package is the 2500HD crew cab, and GMC has indicated that the model will be considered a limited edition.

The vehicle goes on sale in the fall. Pricing is yet to be announced. 

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