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GM's MPG overstatement could affect 2 million vehicles

Late last week, GM admitted that three of its large SUVs fuel economy window stickers did not match their actual efficiency ratings, and so the vehicles couldn't be sold. The stickers on the 2016 Chevy Traverse, GMC Acadia, and Buick Enclave said their ratings were one to two miles per gallon better than they should have been. Officially, the number of affected vehicles sits at about 60,000. But Consumer Reports makes a good point: what's up with all of the previous model year SUVs that are basically the same vehicle? To wit: the 2016 model year vehicles are not substantially different than the 2015 or the 2014, or even going all the way back to 2007. On the EPA's fuel economy website, all of these older models will "have better stated fuel economy numbers than the new vehicles in GM's dealerships," Consumer Reports noted. CR's best point, and the one that makes the 60,000 number potentially grow to 2 million if all of the vehicles built on this platform are affected, is that "[i]t seems unlikely that the company would change the powertrain on these carryover models so late in their model cycles in a way that would cause a dramatic, negative impact on fuel economy." GM says that earlier model year SUVs are not affected and the EPA did not respond to CR's question about the potential for more discrepancies. We've seen automakers reverse course before, so if GM has to come out with a mea culpa soon, don't be surprised. GM is rushing corrected stickers to dealers so that the SUVs can be sold again, but a fix for the already-sold vehicles could be trickier to solve. Related Video: Related Gallery 2013 GMC Acadia View 16 Photos News Source: Consumer Reports Government/Legal Green Buick Chevrolet GMC Fuel Efficiency mpg gmc acadia chevy traverse

GM recalls 64k 2011-2013 Volts over carbon monoxide fears, stop sale on Trax and Encore

General Motors is recalling 50,249 Chevrolet Volts from the 2011-2013 model years in the US and an additional 13,937 exported examples because of fears over carbon monoxide buildup. According to a statement, if a Volt is accidentally left on while running on electric power, its internal combustion engine would eventually kick on to charge on the battery. If this happens in an enclosed space, then carbon monoxide can fill the area, leading to a potential exposure to the dangerous gas. According to GM, there have been two injuries reported due to this issue. To fix the problem, there's a software update to limit the time the vehicle can idle. According to Automotive News, GM is also issuing a stop sale on about 2,300 examples of the 2015 Chevrolet Trax and Buick Encore. In these compact crossovers, it's possible that the steering column assembly could touch the power steering circuit board and cause damage over time. This could potentially cause the system to stop working. Automotive News indicates that the automaker is still working with the supplier to get the necessary parts to repair this problem. General Motors is recalling 50,249 Chevrolet Volts in the U.S. from the 2011-2013 model years to implement a software update that will limit the amount of time a vehicle can be left idling in the "on" or "run" position. If a driver exits the vehicle and inadvertently leaves the vehicle "on" by failing to react to cues and warning chimes emitted by the vehicle, the vehicle's high-voltage battery will drain after a period of time and the gasoline engine will begin to run. If the gas engine runs for a long period of time within an enclosed space, such as a garage, carbon monoxide could build up. GM is aware of two injuries, both related to carbon monoxide build up. The total recall population including Canada and exports is 64,186. Related Video:

Buick Avenir Concept saunters into Detroit [w/video]

We'd never accuse the most recent crop of Buicks of being ugly. Then again, we'd also never argue that they're overly pretty. Instead, they waltz along a middle ground, not standing out while not causing offense. The Buick Avenir Concept occupies no such middle ground – it's gorgeous. A long hood and a short deck fit well with an evolved form of Buick's long-running design language, while traditional highlights such as the waterfall grille and portholes mingle nicely with newer touches, like a beautiful, curvaceous set of rear haunches that bleed into the rear decklid. The cabin, meanwhile, is solidly in the concept realm, with a prominent 12-inch touchscreen as its centerpiece. Like the exterior, the Avenir's cabin is an evolution of current Buick designs, with a curve that tops the dash and feeds into the doors. A higher center console is finished in buffed wood, although the majority of the interior materials appear to be fine leather. Check out our gallery of live images of the new Avenir, at the Buick stand at the 2015 Detroit Auto Show. Show full PR text Buick Explores Future with Avenir Concept New design proportion, device integration, rejuvenating interior push brand forward DETROIT – Buick introduced the Avenir concept today in advance of the North American International Auto Show – a flagship sedan exploring progressive design with new levels of passenger well-being and technology integration. The Avenir – French for future – is distinguished by its premium sports proportions and all-new interpretations of traditional Buick cues. It is the creation of a global team of Buick designers and sculptors who were inspired by historic Buick concepts, which pushed traditional boundaries, shaped future Buick models and influenced the entire auto industry. "Avenir embodies Buick design, which centers on effortless beauty and presence without pretense," said Ed Welburn, vice president of General Motors Global Design. "It demonstrates the growing international reach of Buick and offers an exciting vision of where it can go." The Avenir's sculptural surfacing, expressive proportion and Buick's signature sweep-spear bodyside visually cue an exceptional driving experience that awaits inside. "The interior is designed with the driver and passengers' comfort and well-being in mind," said Welburn.