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2022 GMC Sierra Super Cruise First Drive | Now with trailering and automatic lane-changing

Although the updated late-model year 2022 GMC Sierra is still a little ways off (In fact, it hasn't even been revealed), we've had an opportunity to try one of its headlining features: Super Cruise. But it's not quite the Super Cruise you know from the current Cadillac line. The new Sierra will be getting a newer version with two features: the ability to execute lane changes and passes automatically, and the ability to operate with a trailer. We tried the system at GM's proving grounds in Milford, Mich., and our test vehicles were 2022 Sierra prototypes. Though the trucks themselves are early examples with features not finalized, GMC representatives said the Super Cruise system is pretty much finished. The system uses close and long-range radar sensors at the front and a new set of radar sensors at the back, plus the truck's various cameras. It also utilizes the mapping data that GM has accumulated for the system to ensure it operates on approved roads and has detailed information about where the car is. Now, the first new feature enabled by the updated Super Cruise is the automatic lane-change system. The current system can change lanes on its own, but it must be prompted by a press of the turn signal. That feature remains intact, but now, if you approach a slower vehicle on a multi-lane highway, Super Cruise can check the lane next to you to see if it's safe to merge, change lanes, and then return to the original lane once the slow-moving vehicle has been passed. This is where those rear radar sensors come in. We tried it three times on GM's big banked oval course, and it did it impressively smoothly. It was able to make the decision proactively, too, making the decision to change a good distance before we were on top of the slow moving car. Oh, and of course, because this is Super Cruise, it all happened without us having to touch the wheel. Our automatic lane change test was followed by trying Super Cruise with a trailer. Now, it's important to note that the automatic lane-changing functionality won't work with a trailer. This is because that function depends on a set of radar systems at the back of the truck that are blocked by a trailer. Apart from that, the rest of Super Cruise's functions still work just fine. To make this possible (and safe), the system is able to estimate the weight of the trailer and adjust following distance accordingly, allowing it to safely slow down as needed.

2021 Chevy Silverado, GMC Sierra fuel economy to go down due to global chip shortage

Production of the 2021 Chevy Silverado and 2021 GMC Sierra is continuing, but the global semiconductor chip shortage is resulting in a mid-year change. Or rather, an omission.  Basically, the availability of cylinder deactivation for the 5.3-liter V8 will be significantly reduced, resulting in a reduction of 1 mpg combined for affected models. This applies whether that engine has the six- or eight-speed automatic, as well as to both the regular Active Fuel Management and the more advanced Dynamic Fuel Management cylinder deactivation systems. DFM does remain with the pairing of 5.3-liter V8 and 10-speed automatic that comes standard on the LT Trail Boss and High Country. "Due to the micro controller shortage, the components that control AFM/DFM in the engine control module (ECM) have been removed," GM spokesperson Michelle Malcho told Autoblog. She also indicated that the engines will still have the AFM/DFM hardware in place, but that GM will not allow activation of the systems in the future with an ECM change.  Malcho also confirmed to Autoblog that the Silverado and Sierra's other engines will continue to have AFM and DFM, including the 2.7-liter turbo inline-four, 4.3-liter V6 and 6.2-liter V8. In an earlier statement to Reuters, she declined to say the volume of vehicles affected. "By taking this measure, we are better able to meet the strong customer and dealer demand for our full-size trucks as the industry continues to rebound and strengthen," Malcho wrote Reuters in an email. The change runs through the 2021 model year, she said. Malcho told Reuters it would not have a major impact on the Detroit automaker's U.S. corporate average fuel economy (CAFE) numbers. "We routinely monitor our fleet for compliance in the U.S. and Canada, and we balance our portfolio in a way that enables us to manage unforeseeable circumstances like this without compromising our overall (greenhouse gas) and fuel economy compliance," she said. GM's fleetwide fuel economy in the 2018 model year was 22.5 miles per gallon and was projected to rise to 22.8 mpg for 2019, according to a report by the Environmental Protection Agency. To meet federal CAFE requirements, automakers like GM often use credits from either earlier years where they faced less stringent rules and performed better than the requirements or buy credits from other automakers. GM said last month the chip shortage could shave up to $2 billion from this year's earnings.

GMC Hummer EV First Drive Review | True supertruck, for better and for worse

Right from the start, the 2022 GMC Hummer EV has been advertised with superlatives, mostly in reference to its specifications. GMC has even called it a "supertruck" in its own materials. And while we've received a taste of the truck before, only now have we finally got our hands on the production-spec model, and had the opportunity to drive it both off-road and on the street. What we've found is that the Hummer EV is undoubtedly a supertruck, much the same way that a Ferrari or a Lamborghini is a supercar. It totally delivers on its incredible capabilities, but there are compromises. And they're worth being aware of before plunking down the more than $100,000 a first-year Hummer will run you. That six-figure truck is the version we tested, the Edition 1, which actually rings in at $112,595. It's the only version in production for now, with lower trims coming in the next couple years. It's sold out, but many of the features will be available on the next highest trim level, the EV 3X. Among those features are the three motors, torque vectoring, “Watts To Freedom” launch mode, four-wheel steering, removable glass roof panels, 35-inch tires, Super Cruise, power rear window and MultiPro tailgate. In other words, although you can literally no longer order an Edition 1, you can still order a Hummer EV with nearly the same specification. This content is hosted by a third party. To view it, please update your privacy preferences. Manage Settings. We'll start where most owners probably will: mashing the throttle. No one can resist seeing what 1,000 horsepower and 1,200 pound-feet of torque will feel like. It's even a tad more torque in Watts To Freedom mode, which preemptively runs the cooling system to enable the additional twist. That mode allows the Hummer to hit 60 mph in 3 seconds, and the drama is dialed up with visual, audible and haptic cues. But even without engaging launch mode, the Hummer EV impresses and delights with its acceleration. In addition to pinning you to the seat, the entire truck squats in an exaggerated fashion. It's absurd, especially considering the truck's curb weight that surpasses a truly astounding 9,000 pounds. ThatÂ’s several hundred pounds more than the heaviest GMC Sierra HD 3500 diesel dually. Of course, that weight, as well as the nature of electric motors, means the party starts to calm down as the speed increases. The weight is noticeable in other areas, too.