• GMC's take on off-road luxury brings something unique to the segment
  • There's blacked out chrome everywhere
  • And a body-colored grille and bumper
  • And it has GMC's new MultiPro Tailgate
  • It has its own unique wheel design
  • And you can opt for the carbon fiber bed
  • The inside gets dark aluminum trim
  • Orange accenting
  • and embroidered headrests
  • The traction select system comes standard
  • As does a two-inch lift kit
  • The same engines from the standard model carry over
  • So, there's a 6.2-liter V-8
  • a 5.3-liter V-8
  • or a new 3.0-liter inline-six diesel
  • and you can have the 10-speed automatic if you wish
  • It's not exactly a comptitor for the F-150 Raptor or Toyota Tundra TRD Pro
  • But it does offer up something the others dont
  • and that's a lot of luxury
  • Would you take it over the competition

Two-inch lift and more standard equipment

The pickup truck war is hotter than it’s ever been in the U.S. right now. While Ford has an all-aluminum F-150, GM just launched a brand-new GMC Sierra with an industry-first carbon-fiber bed. Ram is also going strong with a fresh 1500 model. Attracting more and more customers into dealerships is not an easy task, and this is where special models and limited editions come in handy sometimes. With a brand new Sierra 1500 on its way to dealerships, GMC just unveiled a new model. It’s called the Sierra AT4 and combines enhanced off-road ability with extra standard features and more premium appointments.

Designed for the customer "who wants an elevated presence on the road and the capability to venture off life’s beaten path," the Sierra AT4 also marks the debut of a new trim that will be offered on every GMC model in the next two years. Whether specs will be similar, it remains to be seen, but all we know is that the Sierra AT4 rides higher than the standard pickup truck and comes with an extended list of standard features. But despite boasting more luxury and sitting higher above the ground, the AT4 isn’t GMC’s highly anticipated response to the Ford F-150 Raptor. But let’s find out more about this trim in the review below.

Continue reading to learn more about the GMC Sierra AT4.

What makes the GMC Sierra AT4 special?

  • Blacked-out chrome
  • Body-colored grille and bumper
  • Exclusive wheel design
  • Standard MultiPro Tailgate
  • Optional carbon-fiber bed
  • Dark-tinted aluminum trim
  • Embroidered headrests
  • Standard Traction Select System
  • Two-inch lift kit
  • Same engine options as standard model
2019 GMC Sierra AT4 Exterior
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And a body-colored grille and bumper
The first thing that catches the eye is the blacked-out look of the exterior

The AT4 comes with a suite of extra standard features to give it a unique appearance. The first thing that catches the eye is the blacked-out look of the exterior, which no longer features the massive amount of chrome seen on the regular Sierra 1500. The chrome on the foglamp bezels, fender surround, and grille inserts has been blackened, while the grille, the door handles, and the bumper are now finished in the same color as the body. Yes, it looks a bit like the Midnight Edition models we usually see from General Motors, but add-on don’t stop here.

2019 GMC Sierra AT4 Exterior
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It has its own unique wheel design
The AT4 also gets an exclusive wheel design with a machined-face, dark-tinted look

The AT4 also gets an exclusive wheel design with a machined-face, dark-tinted appearance. The standard wheels measure 18 inches, but you can get larger, 20-inch rims off the options list. It also gets standard skid plates, red tow hooks in the front bumper, and the MultiPro Tailgate. The latter is an industry-first feature that has six unique functions and position that enhance loading and turn the bed into a workstation. The innovative carbon-fiber bed is also available to replace the standard steel box.

The dark-tinted accents seen on the outside continue inside the cabin with dark aluminum trim on the on the steering wheel, center stack, and sill plates. The Jet Black/Kalahari accents on the seats are also unique on this model, as are the "AT4" embroidered badges on the headrests. Leather seats, all-weather floor mats, Hill Descent Control, and the Traction Select System complete the list of standard features. The latter allows the driver to choose from preset drive modes that have been tailored for different terrain or weather conditions. Selecting one of these modes adjusts Sierra’s transmission shift points, throttle mapping and StabiliTrak to optimize performance for the situation at hand.

2019 GMC Sierra AT4 Interior
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The inside gets dark aluminum trim
The dark-tinted accents seen on the outside continue inside the cabin with dark aluminum trim

Optional features include a multi-colored head-up display, a segment-first gadget that projects key, customizable vehicle data, including an off-road inclinometer, on the windshield in a 3x7-inch display. The off-road inclinometer shows the fore-and-aft tilt, front tire angle and left-and-right tilt. You can also opt for 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.

The Sierra AT4 isn’t only about extra premium features and a darkened exterior. GMC also made sure that the truck’s off-roading capabilities are better than the standard model by fitting a two-inch suspension lift kit and standard four-wheel drive with a two-speed transfer case. It also uses a locking rear differential and off-road-tuned, Rancho monotube shocks absorbers. All-terrain tires are standard, as is the 5.3-liter V-8 engine. GMC has yet to publish power figures for the revised V-8, but it’s expected to deliver more than the outgoing 355 horsepower.

2019 GMC Sierra AT4 Interior
- image 775299
The innovative carbon-fiber bed is also available to replace the standard steel box

The options list isn’t as exciting here, but you can opt for mud-terrain Goodyear Wrangler Duratec tires if you want to take the AT4 climbing. Both the 6.2-liter V-8 and the 3.0-liter Duramax six-cylinder diesel are offered as options, alongside GMC’s new 10-speed automatic transmission.

No word on pricing yet, but more info should become available before the Sierra AT4 goes on sale later this year.

References

2019 GMC Sierra Exterior
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It looks bigger and bolder

Read our full review on the 2019 GMC Sierra.

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Read more GMC News.

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Read more New York Auto Show news.

Press release

NEW YORK — GMC redefines the off-road space by introducing the all-new 2019 Sierra AT4. For the first time ever, the Sierra AT4 delivers a unique formula of authentic off-road capability and innovative technology paired with premium refinement and a bold appearance expected from GMC.

“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. “It’s also the beginning for the AT4 brand, which will be seen on every vehicle in our lineup in the next two years.”

Standard content on the 2019 Sierra AT4 includes:

2-inch factory-installed suspension lift
Standard 4WD with a two-speed transfer case, locking rear differential and skid plates
Off-road-tuned Rancho monotube shock absorbers
18-inch wheels with all-terrain tires or available mud terrain-rated Goodyear Wrangler Duratrac tire, or available 20-inch wheels with all-terrain tires
Exclusive wheel design with machined-face, dark-tinted appearance
Hill Descent Control
Traction Select System
GMC exclusive, industry-first MultiPro Tailgate
Black chrome finish on the fog lamp bezels, fender surround and grille insert
Body-color grille surround, door handles and bumper
Exclusive athletic interior trim elements
Red vertical recovery hooks
Standard 5.3L V-8 engine
Available content on the 2019 Sierra AT4 includes:

Segment-first Multi-Color Head-Up Display
Segment-first Rear Camera Mirror
GMC exclusive, industry-first Carbon Fiber Pickup Box
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
6.2L V-8 or Duramax 3.0L inline-six turbo-diesel paired with a 10-speed automatic transmission
*Read the vehicle’s owner’s manual for important feature limitations and information.

Dark, Distinguished Appearance
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 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.”

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.

The interior also carries AT4-specific darkened trim, including dark-tinted and textured aluminum finishes on the steering wheel, center stack and sill plates, as well as a unique Jet Black/Kalahari color accents in the seats and live stitching. Leather-appointed seating with embroidered AT4 badging on the headrests and all-weather floormats are standard and support our customers’ active lifestyles and AT4’s mission of delivering capability with uncompromising durability and comfort.

Authentic Off-road Capability
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.

Traction Select System allows the driver to choose from preset drive modes that have been tailored for different terrain or weather conditions. Selecting one of these modes adjusts Sierra’s transmission shift points, throttle mapping and StabiliTrak to optimize performance for the situation at hand.
Segment-first Multi-Color Head-Up Display projects key, customizable vehicle data, including an off-road inclinometer, on the windshield in a 3x7-inch display. The off-road inclinometer shows the fore-and-aft tilt, front tire angle and left-and-right tilt.
Surround Vision is available on Sierra AT4 and provides the driver with a bird’s-eye view through an overhead image on the infotainment screen. It can prove useful when slowly maneuvering in tight quarters, be it within a parking garage or out on a challenging trail.
All-new ProGrade Trailering System with Trailering App offers a connected, comprehensive suite of trailering technology that brings more confidence to the towing experience than ever before in a Sierra.
Groundbreaking Cargo Box Capability and Materials
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 Performance
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.

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