2019 GMC Sierra AT4
GMC has dabbled in off-road models in the past, but the introduction of the ’19 Sierra AT4 proves this company is committed to the dirty lifestyle. Based on the recently revealed ’19 Sierra 1500, the AT4 features a 2-inch suspension lift, four-wheel drive with a two-speed transfer case, a locking rear differential, ample skidplating, and custom-tuned Rancho monotube shock absorbers at all four corners.
Off-road traction is improved by 32-inch-diameter Goodyear DuraTrac off-road tires mounted on unique 18-inch wheels. Optional are 20-inch wheels, but those rollers come mounted on less aggressive all-terrain tires. The AT4 also includes helpful electronics, such as hill-descent control and GMC’s Traction Select System.
A black chrome finish on the foglight bezels, fender surround, and grille insert adds to the truck’s sinister exterior styling. The bumpers, door handles, and grille shell are body colored, and a pair of vertically mounted front tow hooks is painted red. The interior is specific to the AT4 and falls between SLT and Denali grades,
meaning it’s upscale and very well appointed, with trim elements that add to the pickup’s youthful attitude. Seats are a unique mix of Jet Black and Kalahari color accents, with AT4 badging embroidered into the headrests. Dark tinted and textured aluminum trim can be found on the steering wheel, center stack, and sill plates.
Powering the AT4 is an updated version of the company’s legendary 5.3L V-8 engine, likely paired with an eight-speed automatic gearbox. Optional are a new 6.2L V-8 or 3.0L I-6 Duramax diesel, both mated to a 10-speed auto. Details about any of the ’19 powertrains are scarce, so we’ll have to continue waiting for power figures.
Standard on the AT4 is GMC’s new MultiPro tailgate. The MultiPro tailgate has six different functions and positions, offering second-tier loading, load-stop solutions, a bed step, and even a standing workstation. GMC’s CarbonPro carbon-composite pickup box will be available for the AT4 late in the model year, saving weight without sacrificing strength, scuff resistance, or appearance.
If it’s technology you want, you don’t have to miss out just to have off-road performance. Available on the ’19 Sierra AT4 are a segment-first, full-color, heads-up display and rearview camera mirror. A 360-degree camera, ProGrade Trailering, Side Blind Zone Alert, adaptive cruise control, and Front Pedestrian Braking are also available.
Overall, we’re pretty excited about the ’19 GMC Sierra AT4. After years of dipping a toe into the space, GMC finally has a legitimate off-road–oriented ½-ton. Best of all, it’s a no-compromise blend of luxury, technology, and off-road prowess. We’ll have to save final judgment until we get behind the wheel and experience the AT4 for ourselves. And while the Rancho monotube shocks are certainly an improvement, we really wish this high-end off-roader were equipped with MultiMatic’s DSSV dampers, found elsewhere on the Chevrolet Colorado ZR2. Despite that one gripe, we love what GMC has done with the AT4 and feel it is a great addition to its lineup.
The GMC Sierra AT4 takes its modern styling from the all-new ’19 Sierra 1500, augmented with a 2-inch suspension lift, more aggressive off-road tires, and a few new styling features.
Black leather with Kalahari inserts and contrast stitching set the AT4 apart from other Sierra 1500s. The AT4 also gets special embroidery on the headrests, all-weather floor mats, and dark-tinted aluminum finishes on the dashboard and steering wheel.
The Sierra AT4’s front tow hooks and badging are dipped in red for some added visual punch. The look helps those accents stand out on the all-black truck GMC showed at the 2018 New York International Auto Show, giving the AT4 some extra visual aggression.