2019 GMC Sierra AT4 interior exterior design introduction and vehicle specifications
Sierra AT4 Powered by a New Off-Road Performance Package The 2019 GMC Sierra AT4, now defining its premium off-road segment, is now available with its all-new Off-Road Performance Package.
The Sierra AT4 Off-Road Performance Pack includes:
The 6.2L V-8 matched the engine to a 10-speed automatic transmission.
Goodyear Wrangler 18-inch machined aluminum wheels with DuraTrac tires.
Cat-Back Performance Exhaust System.
Performance Air Inlet.
Thanks to these additions, the AT4 Off-Road Performance Pack offers 435 horsepower and 469 lb-ft of torque - a 15-horsepower and 9-lb-ft of torque increase over a Sierra equipped with a traditional 6.2L V-8 engine. The 6.2L was produced at GM's Tonawanda engine plant in New York, and was recently named the Wards 10 Best Engine in 2019.
The Sierra AT4 was introduced earlier this year and includes the following:
Standard 2-inch factory-mounted suspension lift.
Standard 4WD with two quick transfer boxes, locking rear differential and skid plates.
Rancho monotube dampers with standard off-road tuning.
Standard Hill Landing Control.
Select Standard Traction System.
Standard GMC-specific, industry-first MultiPro Tailgate.
Standard black chrome plating, fender guard and grille part in fog lamp frames.
Standard grid perimeter in body color, door handles and bumper.
Standard custom athletic interior trim elements.
Standard red vertical rescue hooks.
The current segment-first Multi-Color Head-Up Display.
Available segment first Rear Camera Mirror 1.
First available in the industry, GMC-specific Carbon Fiber Receiving Box 2.
Surround Vision is a suite of advanced security features, including Lane Blind Zone Alert, Lane Change Alert, Front Pedal Braking, and Low Speed Forward Automatic Braking 1.
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