2019 GMC Sierra AT4 – Authentic Off-road Capability. 2019 GMC Sierra AT4 – Drive, Interior and Exterior.
Sierra AT4 features new versions of the proven 6.2L and 5.3L V-8 engines along with all-new Duramax 3.0L inline-six turbo-diesel engine. The available 6.2L and 3.0L engines are paired with a 10-speed automatic transmission.
The 5.3L and 6.2L engines feature stop/start technology and new Dynamic Fuel Management that enables the engine to operate on one to eight cylinders, depending on demand, to optimize power and efficiency.
The GMC Sierra AT4 goes on sale this fall.
Debuting first on the 2019 Sierra Denali and SLT, the all-new Sierra AT4 also comes standard with the industry-first MultiPro Tailgate — the segment’s most innovative tailgate ever. The MultiPro Tailgate features six unique functions and positions, offering enhanced second-tier loading and load-stop solutions, a standing workstation mode and easier access to items in the box.
Later in the model year, the 2019 Sierra AT4 will offer an available GMC exclusive and industry-first carbon fiber box — the CarbonPro — developed to increase the truck’s durability, efficiency and functionality. It replaces the standard steel inner panels and floor with a lightweight, purpose-designed carbon fiber composite that offers best-in-class dent, scratch and corrosion resistance, making it the most durable pickup box in the segment.
The CarbonPro box combined with our MultiPro Tailgate makes the task of loading and unloading objects such as motorcycles or quads much easier than ever before. The CarbonPro box was designed specifically with three molded in wheel indents in the front bulkhead of the box to locate and secure the front tires. Thanks to added tie-down hooks located in the corners and center bulkhead, and new centralized LED lighting, the task of loading and securing motorcycles and bikes has never been easier. A 110V outlet in the rear routes power to the tools and supplies needed for a day at the track or on the trails.
When it comes to the space and storage vital to truck customers, the 2019 Sierra AT4 delivers innovative solutions. The cargo boxes offer best-in-class cargo volume of 63 cubic feet (1,784 liters) on the short box and continues to be made of roll-formed, high-strength steel, yet a revised alloy offers 50 percent more strength than the current model.
Available GearOn accessory rails within the box allow for bike racks, kayak carriers and other accessories to be installed or adjusted quickly and easily. The rails’ integrated position makes cargo more accessible and frees up space in the rest of the box.
The rear seat backs open to reveal two 10-liter rectangular storage spaces large enough for tablets, tie-down cords or other personal accessories, as well as a large 24-liter storage tray under the second-row seat that can secure all your gear while you’re on the go.
Sierra AT4 comes standard with a factory installed 2-inch suspension lift that provides additional ground clearance and four-wheel drive with a two-speed transfer case that includes low-range four-wheel-drive gearing for extremely tough conditions.
Sierra AT4 also includes standard off-road tuned Rancho monotube shock absorbers, a locking rear differential and Hill Descent Control, a driver assistance feature that leverages the anti-lock braking system to enable smooth, controlled descents on steep grades without the driver having to touch the brake pedal under certain conditions. The locking rear differential directs engine power equally to both rear wheels for the greatest traction on slippery or uneven terrain.
The Sierra AT4 boasts innovative technologies that optimize capability and elevate driver confidence.
Building on the commanding presence of the next generation 2019 Sierra, the new Sierra AT4 enhances its confident, broad-shouldered stance with sophisticated, functional design elements that support its off-road capability.
The Sierra AT4 has a unique look driven by dark exterior finishes and modern detailing. The front and rear bumpers and the grille surround are finished in body color, while the bold grille design with its rugged, knurled texture is finished in black chrome set off by the Sierra’s bold, C-shaped LED lighting signature.
Additional accent details such as the LED fog lamp bezels and fender trim continue the use of black chrome, while a premium high-gloss black finish is applied to the window trim, mirror caps and skid plate. Touches of red complete the package and make the AT4 stand out with subtle detailing in the Sierra’s all-new AT4 signature emblems and bold, unique vertical tow hooks. The exterior details create a distinct and modern personality for the AT4 that projects GMC confidence and capability.
