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2015 Sierra All Terrain HD looks ready to hit heavy-duty trails

GMC is getting its heavy-duty trucks ready for the mud this summer with its All Terrain package for the Sierra 2500HD and 3500HD. Meant to blend style, tech and ruggedness, the pack includes a lot of extra chrome outside and an off-road package underneath.
The 2015 Sierra All Terrain HD trucks naturally come standard with four-wheel drive with an electronically controlled transfer case to handle things in the dirt. The Z71 off-road package is also standard, which includes Rancho twin-tube shocks, hill descent control and a skid plate. To add some style when off the beaten path, the pack includes chrome trim on the mirror caps, lower bumper and grille surround, plus LEDs around the headlights and 18-inch wheels (20-inchers are optional on the 2500HD). The 3500HD also gets chrome, adjustable outside camper mirrors. The interior receives a technology upgrade thanks to the standard rearview camera and IntelliLink infotainment that can act as a Wi-Fi hotspot through OnStar 4G LTE, read text messages and includes Siri Eyes Free for iPhone users.
The All Terrain package goes on sale on both trucks this summer and is offered on either the SLE or SLT trim levels in double cab and crew cab models. The standard engine is the 6.0-liter V8 with 360 horsepower and 380 pound-feet of torque, but the Duramax 6.6-liter, diesel V8 with 397 hp and 765 lb-ft is also available. The gas engine is mated to a Hydra-matic six-speed automatic, and the diesel uses an Allison six-speed automatic. Scroll down to read the full announcement about these heavy-duty off-roaders.

2020 GMC Sierra makes diesel and 10-speed more available

The 2020 GMC Sierra full-size pickup truck doesn't look much different than the previous model, but it brings along a number of new feature updates. Specifically, certain options are now more widely available, including some powertrain options. The model year also brings about the truck's latest towing camera and some towing app updates. We'll start with the 3.0-liter diesel inline-six and 10-speed automatic, as both are more broadly available for 2020. The diesel adds the second-lowest Elevation trim level, meaning it's available in every trim except the base Sierra. The diesel is also now an option for the CarbonPro Edition AT4 and Denali, so you aren't limited to the 6.2-liter V8 for those trims. The 10-speed automatic is finally available on the 5.3-liter V8, but it's restricted to four-wheel-drive versions of the SLT, AT4 and Denali trims – lower trims retain the eight-speed automatic. The 10-speed transmission continues to be standard with the 6.2-liter V8 and 3.0-liter diesel. GMC also added new towing-related features for 2020. It has a newly-optional rear-view camera system that can show what's behind the truck's trailer, and it can project that where the trailer is on the main display, effectively making the trailer disappear. This feature was introduced in the Sierra HD. GMC also added a feature to its trailer app that lets you store and share details on your trailer setup so that it's easier for someone else to hook it up. You can even monitor and activate functions on compatible trailers with the app. There are a number of other more minor updates. Sierras can now be optioned with adaptive cruise control. The Elevation trim is available with the Crew Cab configuration. The AT4 CarbonPro Edition gets a few extra black accents compared with the 2019 version. Pricing and availability of the 2020 Sierra haven't been announced yet, though.

GMC Canyon next generation previewed with off-road AT4X trim

GMC is preparing to give the Canyon, its smallest and most affordable pickup, a complete makeover. While we won't see the truck for a few months, the company released a preview image to give us an idea of what to expect and confirmed the lineup will include an AT4X model. Although the teaser keeps most of the sheetmetal hidden, the truck appears to receive a more chiseled hood and concave door skins that should make it look less slab-sided. The fenders are eye-catching as well: They're more punched-out that the current-generation model's. Keep in mind that we're looking at the AT4X trim, which will be positioned as the off-road champion of the range and should consequently get a brawnier-looking design. Other off-road goodies include big Goodyear Wrangler tires wrapped around 17-inch beadlock-capable wheels, plastic wheel arch flares, and rock rails. GMC is keeping additional details under wraps, but we're guessing suspension tweaks are part of the package as well. After all, the current-generation AT4 benefits from a one-inch suspension lift and skid plates, among other upgrades. This isn't the first time we've seen or heard of the Canyon AT4X. Our spy photographers caught a camouflaged prototype that looks taller and considerably more rugged than the AT4 in July 2021, and the Canyon AT4 OVRLANDX concept introduced in August 2021 seemingly previewed some of the features that will trickle down to the production model, including the rock rails and wheel arches. GMC will unveil the next-generation Canyon this summer, and we expect to hear more about it in the coming weeks. And, if a new Canyon is around the corner, that likely means that the next Chevrolet Colorado isn't far behind. Both will compete directly against the new Ford Ranger, which has only been unveiled for overseas markets as of writing and which will spawn a range-topping, V6-powered Raptor. Another competitor the duo will need to fend off is the Nissan Frontier, which got its first update since the 2005 model year for 2022. Already offered on the 2022 Sierra, the outdoorsy AT4X trim will spread across the GMC range in the coming years. Nothing is official yet, but earlier spy shots strongly suggest that the Sierra Heavy Duty will be treated to the AT4X treatment in the not-too-distant future. Related video: This content is hosted by a third party. To view it, please update your privacy preferences. Manage Settings.