With the success of the AT4 brand on the GMC Sierra pickup, GMC is now extending the AT4 treatment to the rest of its product lineup (with the exception of the GMC Savana). That includes the all-new 2021 GMC Yukon. Now, we’re taking a closer look at the new GMC Yukon AT4 as it heads off road in the following GM Authority Live Photo Gallery.
As expected, the new GMC Yukon AT4 gets a variety of rugged new features to help it ply the trails, plus several styling changes to complement the upgraded capability. Up front is a unique fascia treatment with a rough-and-ready appearance that’s better suited for off-road capability by delivering improved approach. The Yukon AT4 also gets numerous dark accents and red recovery hooks as well.
In the corners, we find a set of 20×9-inch, six-spoke machined aluminum wheels with Carbon Grey Metallic accents wrapped in 20-inch Goodyear all-terrain tires, as well as the option to equip four-corner Air Ride Adaptive Suspension. The Air Ride feature is capable of lifting the AT4 an additional two inches, providing a nearly 32-degree approach angle.
Under the skin, the GMC Yukon AT4 gets a set of underbody skid plates and a two-speed transfer case. There’s also the Traction Select System with off-road mode and Hill Descent Control to provide digital assists in the rough.
The rear end is defined by a new interpretation of GMC’s signature C-shaped lighting. The AT4 makes do with a tucked-under exhaust, which is in contrast to the dual exhaust treatment of the 2021 Yukon Denali.
The only engine on offer is the naturally aspirated 5.3L V8 L84, which produces 355 horsepower and 383 pound-feet of torque. As we covered previously, the GMC Yukon AT4’s unique front fascia prevents it from offering the new turbodiesel 3.0L I6 LM2 Duramax engine option. The atmospheric 5.3 is mated to GM’s new 10-speed automatic transmission, and 4WD is standard.
Although it sports a rugged exterior, the 2021 GMC Yukon AT4 still gets the goods inside, including leather-appointed seating with AT4-exclusive branding and stitching, and a unique Jet Black color theme with Brandy accents. Those living in colder climates will appreciate the heated steering wheel, while heated and ventilated front seats and heated outboard seats for the second row round it out.
The new AT4 model is positioned in the upper echelon of 2021 Yukon trims. It slots above the SLE and SLT, but just below the range-topping Denali. Pricing starts at $66,095 for the regular-length Yukon AT4 and $68,795 for the extended-length Yukon XL AT4.