2008 Gmc Sierra 2500hd 4x4 on 2040-cars

Auto blog

GM recalls 3.8 million vehicles in North America due to braking issue

WASHINGTON — General Motors Co said Wednesday it was recalling 3.46 million U.S. pickup trucks and SUVs to address a vacuum pump issue that could make braking more difficult and that has been linked to 113 accidents and 13 injuries. The recall covers 2014-2018 model year vehicles, including some Cadillac Escalade, Chevrolet Silverado, Chevrolet Tahoe, GMC Sierra, Chevrolet Suburban and GMC Yukon vehicles. In late June, GM recalled 310,000 vehicles in Canada for the same issue. GM did not immediately explain why the Canadian recall occurred more than two months before it called back the vehicles in the United States. The recall was triggered because the amount of vacuum created by the vacuum pump may decrease over time, GM told the National Highway Traffic Safety Administration (NHTSA) in documents posted on Wednesday. The NHTSA opened a preliminary investigation into the issue last November, and said it had reports of nine related crashes and two injuries. It provided GM in July with additional field reports that prompted the automaker to open an investigation. GM said it could affect braking in "rare circumstances." The NHTSA said in a statement the "vehicles may experience brake boost failure, which would require increased brake pedal effort, leading to a hard brake pedal feel, and potentially increased stopping distance." GM said dealers will reprogram the electronic brake control module to improve how the system utilizes the hydraulic brake boost assist function when vacuum assist is depleted. GM said the vacuum assist pump, which is lubricated with engine oil that flows into the pump through a filter screen, can in some cases lose effectiveness over time, as debris such as oil sludge can accumulate on the filter screen. GM told NHTSA that prior model years used a different brake assist system design, and vehicles manufactured after 2018 were not equipped with the affected pump design. Separately, GM said on Wednesday it is recalling 270,000 additional U.S. vehicles in three smaller recalls, including 177,000 2018 Chevrolet Malibu cars with 1.5L turbo engines because an error in the engine control module software may result in the fuel injectors being disabled.

Watch the live reveal of the 2014 Chevy Silverado and GMC Sierra [UPDATE]

UPDATE: The trucks have been revealed. Click here for all of the official details.
As promised, Chevrolet and GMC are offering a live webcast of the world premiere for the all-new 2014 Silverado 1500 and Sierra 1500. After being teased with spy shots and blurry images like the one above for ages, now is the time to see the trucks in the metal, for real (well, as 'real' as it gets on a webcast, at any rate).
Shift your eyes down just below to see the reveal as it happens, starting at 9:30 AM EST. We anticipate having loads of images full technical information to share after the webcast, too, so truck aficionados should stay tuned. We'll also be bringing you live images of both trucks too, when we see them on the show floor at next month's Detroit Auto Show.

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.