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New York, NY – GMC continues its unveils just ahead of the 2018 New York International Auto Show (NYIAS) with the release of a new off-road Sierra variant that will be called the Sierra AT4.

The AT4, starting out as a 2019 model year truck, will come out later this fall delivering off-road adventure along with the same bold stance, premium interior and latest technology found in the all-new next-generation Sierra, shown off earlier this month in Detroit. 

The premium off-road brand AT4 only starts with Sierra, eventually to work its way into every GMC product over the next two years. 

“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 biggest factor that separates the AT4 from the regular Sierra is its factory-installed two-inch suspension lift for extra ground clearance. More assistance comes from its four-wheel drive setup with a two-speed transfer case and a low-range setting, Hill Descent Control, off-road tuned Rancho monotube shock absorbers and a locking rear differential that aid the AT4 in gaining momentum and traction during tough climbs, steep valleys and various sticky terrain.

To enhance the AT4s off-road excitement, GMC has dressed it in a unique dark finish, perfect to show off in the Gotham city. A rugged grille finished off with black chrome make this Sierra standout, while retaining some GMC qualities through its signature C-shaped LED headlights. To separate this Sierra AT4 further from its regular version, red touches are displayed in key spots, as well as unique vertical tow hooks and AT4 signature emblems that are carried into the inside on its leather seat headrests. The rest of the interior continues that darkened theme on the steering wheel and centre stack.

Continuing the tour of the inside, the AT4 shows off its segment-first 3.7-inch Multi-Colour Head-up Display that includes an off-road inclinometer that assists in fore-and-aft tilt, front tire angle and left-and-right tilt to figure out how steep a grade your transversing. Furthermore, the AT4 has an available bird’s-eye view Surround Vision displayed through the infotainment unit and an all-new ProGrade Trailering system with Trailering App.

Powering the Sierra are updated versions of the 6.2-litre and 5.3-litre V8 engines matched to a 10-speed automatic transmission. Both will feature stop/start technology, as well as a new Dynamic Fuel Management system that can fluctuate from one to eight cylinders for improved fuel efficiency. 

An all-new 3.0-litre inline-six turbodiesel engine will be added to the engine mix and released after the V8s. 

As with the new 2019 Sierra, the AT4 will also feature an available carbon fiber cargo box – the CarbonPro. It will have best-in-class dent, scratch and corrosion resistance. All other boxes featured in most trims will utilize high-strength steel and a bed floor made by a stronger alloy. It will possess best-in-class cargo volume at 1,784 litres on the short box version.

To finish the Sierra's innovative story, a standard industry-first MultiPro Tailgate with six unique functions will be offered up in the AT4 that includes a second-tier loading station and standing workstation to make those stressful jobs and tasks much easier. A 110V outlet can be found in the rear to power up tools and supplies. 

The 2019 GMC Sierra AT4 will be available in the fall of 2018.

Detroit, MI – GMC unveiled the all-new 2019 Sierra Denali and SLT to a host of media in Detroit. The separate unveiling of the Sierra after the North American International Autoshow in Detroit was no coincidence, as it was a move to differentiate the top-selling GMC product from its Chevrolet Silverado sibling.

The two top-level Sierra trims – the Denali and SLT – represent the premium expression of where the GMC brand aspires to. Two industry-firsts: a six-function tailgate and carbon fiber bed are the clearest examples of that premium shift. The new MultiPro tailgate is standard on both trim levels and can make life easier for truck owners with six unique functions and positions to help with second-tier loading, load-stop solutions, and it even acts as a standing workstation. The carbon fiber box, labelled the CarbonPro, will be an available option on an increased seven-inch wider frame from than the outgoing model. The carbon fiber box is a big step up in durability for GMC, while possessing best-in-class dent, scratch and corrosion resistance.

Unique exterior designs further help in separating the Sierra from the Silverado. Most of them can be found on its front fascia with a distinct chrome grille, a fresh GMC stamp in the centre, and LED touches for its headlights, fog lamps and taillights. Its LED C-shaped headlights that wrap around its fenders are a work of art featuring an attractive “light blade” that sets a premium mood.

Even though the new Sierra sits higher and has a larger wheelbase, GMC has managed to shed 163 kg from its outgoing model thanks to additional high-strength steel and aluminum. The aluminum won't be used in the box, but is used where needed, in its doors, hood and tailgate. The available CarbonPro box will drop even more weight as its 28 kg lighter than the steel version used throughout the rest of the product line.

The Denali trim continues to impress on the inside with natural pebbled leather, open-pore wood and a dark-finish aluminum decor. Occupants enjoying those refined treatments will also be impressed by best-in-class front head- and legroom thanks to an expansion of three-inches of rear seat legroom. Rear seat storage compartments that can store a laptop or tie-downs, as in the new Silverado, can be found by flipping open its rear seats.

Powering the Sierra for now (more are expected to be added) are three engine offerings: a 5.3-litre and 6.2-litre V8, and an all-new 3.0-litre inline-six turbo-diesel. Performance numbers are to follow as well, but we can report that the 6.2-litre V8 and the diesel will be matched to a 10-speed automatic transmission, while the 5.3-litre receives an 8-speed automatic gearbox.

Even though the V8s appear as carryovers, they've been improved with the use of start/stop technology and a Dynamic Fuel Management system. The latter is the same used in the Silverado that can deactivate all but one cylinder for better performance and fuel economy.

Another note of interest is in technology. The 2019 Sierra will feature a class-first head-up display, as well as rear camera mirror, a ProGrade trailering system that performs light tests and a pre-departure checklist, and hitch guidance to assist when positioning the hitch.

The 2019 GMC Sierra will go on sale in the fall of 2018 with more engine news, towing and payload capacities, and pricing to come at a later date.

General Motors will not be resting on the success of its Chevrolet Silverado and GMC Sierra pickup trucks. After showing images of its refreshed Silverado, pictures were released showcasing the new looks of its premium option, the 2016 Sierra in SLT, Denali and All Terrain trim.

In the SLT and Denali versions, the chrome grille really stands out with a bold, aggressive look. It's got a no-nonsense truck appeal with LED “C-shaped” signature daytime running lights and LED headlights, as well as new LED fog lamps at the bottom of the bumper.

The All Terrain version looks more like the refreshed Silverado with less chrome in the grille allowing the bumper colour to match it. It will have the signature “C-shaped” LED lights to differentiate it from its sibling.

All of the new GMC Sierras will have an updated infotainment system inside with support for both Android Auto and Apple CarPlay.

All trims have their own unique look, and more information will be released closer to the on-sale date in the fourth quarter of this year, around the same time as the Nissan Titan rolls out.