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GM recalling 22K Silverado and Sierra trucks for seat issue

General Motors will recall 21,721 of its new 2014 Chevrolet Silverado and GMC Sierra pickups over front seats that could move if the vehicle is hit from behind. Affected vehicles all feature manual adjustments for the two front seats, according to a report from Automotive News.
Of the nearly 22,000 vehicles covered under the action, the overwhelming majority - 18,972 -- were sold in the United States. A further 2,575 were sold in Canada, while 103 were shipped south of the border to Mexico. Finally, another 71 were sold outside North America altogether. As of right now, there are no reports of injuries due to the defect.
Naturally, Chevy and GMC dealers will make the repairs free of charge, although it's not clear as of this writing if GM will be notifying owners or just addressing the issue at the truck's first service.

GMC Hummer EV heads north for winter

GMC announced early Tuesday that its new Hummer EV pickup is ready to head north for winter testing. What might seem like a trip in the wrong direction to us warm-blooded enthusiasts is a critical next step in the development of GM's new electric truck.  We also got a couple of teaser pics of the Hummer EV at GM's Milford Proving Grounds, along with two shots of development prototypes being assembled, of which GM says it has "a series." There's not much new to see here, but GM says there's more to come. "The GMC HUMMER EV has arrived at GM’s Milford Proving Grounds to continue validation tests and will head to northern Michigan to run through the teamÂ’s grueling winter testing process," GM said in its announcement. "We will document the journey and share updates in the coming weeks and months." The GMC HUMMER EV arrived at GM?s Milford Proving Grounds to c View 3 Photos The GMC Hummer EV Edition 1 will feature three electric motors, enabling torque vectoring. GMC says these motors produce 1,000 horsepower, though we don't yet have a final torque figure. Power comes from a 24-module Ultium battery pack which can provide an estimated 350 miles (or more) of range. GMC says this new architecture supports 800-volt fast charging up to 350 kW, which is comparable to the system Porsche introduced with its Taycan electric sedan, and GMC says it can replenish 100 miles of range in just 10 minutes. Planned variants include a two-motor setup, and an alternative three-motor version without torque vectoring. The Hummer EV rides on fully independent suspension with adaptive air shocks. They can provide continuous damping adjustments for comfort, and have a height adjustment range of 6 inches. When set in its max-height off-road mode, it has two additional inches of ground clearance, and the "Extract Mode" will lift it six inches higher than default. The Edition 1 model also comes with standard 35-inch mud terrain tires, and combined with the suspension, the Hummer EV has a fording depth of two feet and the capability to climb over an 18-inch vertical obstacle. Edition 1 Production begins late next year, with a starting price of $112,595. In fall 2022, we'll see the regular top trim starting at $99,995; In spring 2023, weÂ’ll get a mid-level trim that has three motors, air suspension and four-wheel steering -- but no torque vectoring -- starting at $89,995. 

GM reportedly developing 2.5-liter turbo four-cylinder

General Motors is allocating a massive amount of resources to developing electric technology, but it's not forgetting about the gasoline-powered cars that make up the bulk of its sales. It's reportedly designing a new 2.5-liter turbocharged four-cylinder engine based on its 2.7. Citing "sources familiar with the matter," enthusiast website GM Authority wrote that the 2.5-liter four is "in [the] final stages of development," meaning it should be announced sooner rather than later (assuming the report is accurate). Technical details are few and far between as of writing. The publication learned that the 2.5 will be part of the Cylinder Set Strategy (CSS) family of engines and that it will be mechanically related to the 2.7-liter currently found in the Chevrolet Silverado 1500, among several other models. It will feature dual overhead camshafts. It's too early to tell which models the 2.5-liter four-cylinder will end up in, or how much power it will generate. The output will likely depend on the application. For context, the 2.7 delivers 310 horsepower at 5,600 rpm and 348 pound-feet of torque between 1,500 and 4,000 rpm in the Silverado. In the smaller Colorado, it provides anywhere between 237 and 310 horsepower depending on the trim level selected. While this is pure speculation, our crystal ball tells us the engine will end up powering crossovers. It's an easy deduction to make. We can't imagine it will be offered in the Silverado, and seeing it in the Colorado is unlikely because its entry-level engine develops 237 horsepower; there's likely not much of a market for a midsize truck with 200 or so horsepower. Putting it in the Corvette wouldn't make sense and the Camaro has nearly reached the end of its life cycle without a successor planned. This leaves us with Chevrolet's range of crossovers, like the Equinox, as well as their GMC-, Buick-, and Cadillac-branded counterparts. We're not discounting the possibility that the cars set to receive the 2.5 haven't been unveiled, but those are likely crossovers, too; the odds of seeing another big Chevy sedan are very, very low. General Motors hasn't commented on the report, and it hasn't publicly announced plans to expand its CSS family of engines. If the report is accurate, we should learn more about the new turbocharged, 2.5-liter four-cylinder engine in the not-too-distant future. Featured Gallery 2022 Chevrolet Equinox RS View 56 Photos Buick Chevrolet GM GMC