2020 GMC Sierra 2500HD AT4 Kenosha, WI

2020 GMC Sierra 2500HD AT4 model exterior shot with white paint color parked on a rocky cliff with a trailer of all-terrain buggy tractors

We’ve previously covered the baseline offerings of the 2020 GMC Sierra 2500HD model. However, we wanted to bring some special attention to the AT4 off-road focused variation of this already incredibly capable Heavy Duty pickup truck model. The 2020 GMC Sierra 2500HD AT4 combines the wonderful specs and features of the standard Sierra 2500 Heavy Duty model with an illustrious off-road identity and plenty of additional performance features and exterior and interior aesthetic accents.

Starting with looks, the 2020 GMC Sierra 2500HD starts out with dark chrome exterior finishes along with contemporary detailing to set its style apart from the standard 2020 GMC Sierra 2500HD model. Additionally, front and rear bumpers are matched to the choice of body color. Inside, an athletic interior adopts the dark tints of the exterior for a more refined look including aluminum detailing, perforated inserts, and embroidered AT4 badging.

Elsewhere, the 2020 GMC Sierra 2500HD AT4 offers the following:



Comfort & Style

Duramax 6.6L Turbo-Diesel Engine 15” Diagonal Head-Up Display Leather-Appointed Seating
445 Horsepower and 910 lb-ft of Torque HD Surround Vision1 Jet Black Interior
10-Speed Allison Automatic Transmission iN-Command® Control System Kalahari Color Interior Accents
30,000+ lbs Towing Capacity Android Auto™ and Apple CarPlay™ All-Weather Floor Liners

When is the 2020 GMC Sierra 2500HD AT4 Release Date?

The 2020 GMC Sierra 2500HD AT4 model has many additional performance features, both those carried over from the standard Sierra 2500HD build and those unique to the AT4 trim level. Some of these many features include:

  • Traction Select System with Off-Road Mode
  • Hill Descent Control
  • Hill Start Assist
  • Park Grade Hold Assist
  • All-Terrain Tires
  • Off-Road Suspension
  • Eaton Locking Rear Differential
  • Rancho Shocks
  • Trailer Sway Control
  • Auto Grade and Diesel Exhaust Braking
  • And More!

All 2020 GMC Sierra 2500HD models, including the 2020 GMC Sierra 2500HD AT4, are set to go on sale in the late summer period of 2019. For more information on any current or upcoming GMC models, please feel free to contact us here at the Palmen GM dealership. Our staff can be reached online, by phone, or with a visit to our dealership located in Kenosha, Wisconsin.

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