Do you like to rough-it at your favorite campsite, or enjoy the serenity of an out-of-the-way fishing spot that can only be reached by a truck with off-road capability? Do you also spend a lot of time in your truck during the work day, and need the comfort and amenities of an upscale truck to get through the week? Well, we have a truck that is tailor-made for you—the 2019 GMC Sierra AT4 crew cab short bed pickup. The specific mission of the Sierra AT4 is delivering off-road capability with uncompromising durability and comfort.
Off-Road Capability Plus Comfort
We all know the GMC Sierra as an upscale, refined full-size pickup truck with plenty of premium features, top-end interior accoutrements and stylish comfort. At least we thought we knew the Sierra—for 2019 the GMC lineup will include the Sierra AT4, “AT” standing for “All Terrain” and the “4” meaning four-wheel drive. Yes, the Sierra AT4 is directed to those who want the ability to go off-road without sacrificing any of GMC’s luxury and comfort. “The 2019 Sierra AT4 is designed for the customer who wants an elevated presence on the road and the capability to venture off life’s beaten path,” said Duncan Aldred, Vice President of Global GMC.
The AT trim level will be available on the entire range of GMC trucks and SUVs following its introduction on the Sierra, marking the beginning of GMC’s serious plan to increase the off-road capabilities of its entire portfolio. Initially, the AT4 trim will be available only on the Sierra crew-cab short bed pickup.
The AT4 Off-Road Attitude
The new Sierra AT4 comes standard with:
- Two-inch factory-installed suspension lift
- Four-wheel drive with a two-speed transfer case that includes low-range, four-wheel drive gearing for extremely tough conditions
- A locking rear differential that directs engine power equally to both rear wheels for the greatest traction on slippery or uneven surfaces
- Skid plates to protect the vital components of the chassis
- Off-road-tuned Rancho monotube shock absorbers.
A Hill Descent Control is also available that uses the anti-lock braking system to enable smooth, controlled descents on steep grades under certain conditions without having to touch the brake pedal. Also, a Traction Select System allows you to choose from preset drive modes tailored for different terrain or weather conditions. The modes adjust Sierra’s transmission shift points, throttle mapping, and StabiliTrak to optimize performance for the situation at hand.
Many feel the GMC Sierra 1500 pickup is more conservatively styled than its cousin, the Chevrolet Silverado, but the body-color grille surround, door handles and bumpers; the black chrome finish on the fog lamp bezels, fender surround and the grille insert; and the gloss red vertical recovery hooks of the AT4 trim add an off-road attitude to the Sierra. “The 2019 Sierra is the boldest expression ever for GMC’s full-size pickup, and the new AT4 reinforces its essence of capability with distinctive, athletic cues,” said Matt Noone, director of design, GMC Exteriors. “From every angle, it conveys GMC’s premium yet functional design language.”
Sierra AT4 Leads the Field with Cargo Box Features
The Sierra AT4 cargo box breaks new ground with the standard MultiPro tailgate and the optional, GMC exclusive and industry-first carbon fiber cargo box. The market segment’s most innovative tailgate features six unique functions and positions offering enhanced second-tier loading and load-stop solutions, and easier access to items in the box. The MultiPro tailgate can accommodate and secure extra-long cargo, provide a handy step into the bed, and partially flip down to become an on-site work desk.
Later in the model year, the 2019 Sierra AT4 will offer an optional carbon fiber cargo box. The CarbonPro box 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, and reduces bed weight by 62 pounds (compared to the standard all-steel bed). The CarbonPro box combined with the MultiPro Tailgate makes the task of loading and unloading objects, such as motorcycles or quads, much easier. The improved cargo box has three molded-in wheel indentations in the front bulkhead of the box to locate and secure the front tires. With 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.
GMC Sierra Drivetrains
The Sierra AT4 comes standard with a 5.3-liter V8 engine coupled to an eight-speed automatic transmission. AT4 horsepower ratings have not yet been made public, but the same engine in the Sierra 1500 produces 355 horsepower. The power rating in the AT4 may be a bit higher. Also available are the gasoline 6.2-liter V8 and the 3.0-liter diesel inline 6 powerplants, each with a 10-speed automatic transmission. The 5.3L and 6.2L engines feature stop/start technology and new Dynamic Fuel Management that enables operation on one to eight cylinders to optimize power and efficiency.
Eighteen-inch wheels with all-terrain tires are standard. Available options include mud-terrain- rated Goodyear Wrangler Duratrac tires, or 20-inch wheels with all-terrain tires. The exclusive wheel design includes a machined-face and dark-tinted appearance adding to the Sierra AT4’s aggressive appearance.
Sierra AT4 Interior
The standard interior carries AT4-specific darkened trim, including dark-tinted and textured aluminum finishes on the steering wheel, center stack and sill plates; unique Jet Black/Kalahari color accents in the seats and stitching; leather-appointed seating with embroidered AT4 badging on the headrests; and all-weather floormats. You can also order the optional, segment-first Multi-Color Head-Up Display that projects key customizable vehicle data, including an off-road inclinometer showing fore-and-aft tilt, front tire angle, and left-and-right tilt in a 3×7-inch display on the windshield.
The Sierra AT4 has a full suite of advanced safety features including Surround Vision, Lane Change Alert with Side Blind Zone Alert, Front Pedestrian Braking, and Low Speed Forward Automatic Braking. Surround Vision provides the driver with a bird’s-eye view through an overhead image on the infotainment screen. An all-new ProGrade Trailering System offers a connected, comprehensive suite of trailering technology. Plenty of safe interior storage space is available—rear seat-backs open to reveal two 10-liter rectangular storage spaces large enough for tablets, tie-down cords or other personal accessories, and a large 24-liter storage tray under the second-row seat that can secure all your gear while you’re on the go.
If you’re in need of a truck to take all of your ‘stuff’ to your favorite off-road get-away-from-it-all place, but don’t want to leave your comfort at home, the GMC Sierra AT4 may be the answer to your dreams. The Sierra AT4 will go on sale in the fall and prices will be announced at that time. You still have some time to supplement your piggy bank before the Sierra AT4 hits the market.
PHOTOS: All credited to GMC