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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 3.6 million vehicles for airbag-software problems

The Basics: General Motors is recalling 3.64 million vehicles across its lineup for an airbag-related issue. The recall covers the 2014-2015 Buick LaCrosse, Chevrolet SS, and Spark EV; 2014-2017 Chevrolet Corvette, Trax, Caprice PPV, Silverado 1500, Buick Encore, and GMC Sierra 1500; and 2015-2017 Chevrolet Tahoe, Suburban, Silverado HD, GMC Yukon, Yukon XL, Sierra HD, Cadillac Escalade, and Escalade ESV. The Problem: Affected vehicles have a sensing and diagnostic module that controls the airbags and seat-belt pretensioners. The software it uses has a defect that can prompt the module to run a diagnostic test under specific driving conditions, which will also deactivate the front airbags and pretensioners. This means that it would be possible for those safety systems to not activate in a crash, potentially leading to injury or death. Injuries/Deaths: General Motors began an investigation that led to the recall after a 2014 Silverado was involved in a crash in which the airbags did not deploy. No information was given as to injuries or deaths. The Fix: Owners can bring their vehicles to a local General Motors dealer where a software update will be installed to fix the issue. The fix will be free of charge. If you own one: General Motors will contact owners of affected cars, and owners can check whether their vehicles are affected by visiting entering their vehicle identification numbers at either the GM Owner Center website or the NHTSA website. Owners can then schedule a time to have the update installed. Related Video:

Looking back at how and why GM saved Buick

Still uncomfortably fresh in our collective minds is 2008, the year when the US economy tanked, auto sales collapsed, and both General Motors and Chrysler endured federally managed bankruptcies. Then 2009, when, among other draconian measures, the government task forces dictating what they were compelled to do to earn taxpayer financial support ordered thousands of dealers cut and GM to discontinue four of its eight US brands. Three of those chosen for GM's axe were fairly obvious: off-road icon Hummer had become politically incorrect, Swedish-born Saab was a perennial money loser, and product-starved Saturn had sadly sagged after its strong early start. On the other hand, high-volume value brand Chevrolet, luxury Cadillac, and high-profit GMC seemed clear keepers. That left Pontiac and Buick, both boasting strong brand heritage and histories but both languishing at the time with lackluster image and sales. Most believed that "old man's car" Buick would be killed and once-youthful Pontiac and its performance image would be revived. So few understood why when exactly the opposite happened: Buick lived, Pontiac died. One key factor was Buick's long, distinguished history in China. In the early 20th century, many of that country's most influential citizens owned, drove, or were driven in Buicks. By 1930, one out of every six cars on the roads in Shanghai was a Buick. So when GM launched vehicle production at a Shanghai joint-venture plant in 1999, the chosen brand was Buick. Today it remains GM's best-selling brand in that fast-growing market. Another was an appealing new design direction that began with a shapely 2006 three-row crossover concept called Enclave. Inspired by the Buick Velite concept convertible of 2004, its curvaceous "form vocabulary," GM Design vice president Ed Welburn said at the time, previewed coming Buick production car and CUV design. "The body shape flows, like there's wind blowing over it," he enthused, adding that the Enclave concept's richly trimmed cabin foretold "a renaissance in interior design for GM." And when the production Enclave arrived for 2008, followed by platform siblings from Saturn and GMC (and later Chevrolet), it indeed caught the public's eye and started selling well. And once past GM's painful and embarrassing bankruptcy, Buick has been on a major roll. Continuing to sell strongly in China while growing substantially in the US, it has enjoyed four straight years of global sales records.