All new power

GMC’s burliest pickup gets a light visual refreshing among larger changes such as a revised powertrain that offers more towing capacity and an all-new trim. The Sierra HDs get a revised front fascia with newly available LED headlights and taillights with sequential turn signals. The 6.6-liter Duramax turbocharged diesel V-8’s power and torque have increased to 470 horsepower and 975 pound-feet of torque respectively.
2023 GMC Sierra HD Interior
2023 GMC Sierra HD Outdoors

Technology to suit you

Every Sierra HD has a standard touchscreen infotainment system with Apple CarPlay and Android Auto. Most trim levels have an 8.0-inch screen and additional charging ports. All systems include a set of rotary knobs and physical buttons that are easily accessible. The larger touchscreen can be upgraded with built-in navigation, a Bose audio system, SiriusXM satellite radio, and a rear-seat entertainment system.

A beast of a truck

GMC Sierra HD pickups can pull a titanic amount of weight, but their Herculean efforts don’t stop there. These big-power workhorses clean up pretty well, too, offering shiny chrome exterior bits and a comfortable leather saddle for the inside.
2023 GMC Sierra HD Interior

Standard Features

  • Standard 6.6L V8 Gas Engine
  • Built from high-strength steel using front hydroformed rails
  • Park Grade Hold Assist
  • Available Digital Variable Steering Assistg
  • Available 2-Speed Autotrac® Transfer Case
  • Available Traction Select with Tow/Haul & Off-Road Mode
  • Chassis and suspension are built upon a fully boxed, ladder-type frame
  • Built from high-strength steel using front hydroformed rails


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