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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

GMC Canyon, Chevy Colorado diesels finally heading to dealers

Customers who have been waiting to receive their diesel-powered Chevrolet Colorados and GMC Canyons should be relived to hear that GM will finally start to ship them out of the Wentzville Assembly Plant. "The highly anticipated 2016 GMC Canyon diesel has begun shipping to dealers," a company spokesperson confirmed to The Detroit News. The trucks originally had a fall launch date, but a final review forced a delay in deliveries. The 2.8-liter four-cylinder diesel in the midsize trucks produces 181 horsepower and 369 pound-feet of torque, and the company touts the engine's low emissions. The Environmental Protection Agency and California Air Resources Board even put the mill through extra scrutiny with a real world test in the wake of VW's diesel scandal, and the Duramax passed with no problems. At that time, a Chevy spokesperson told Autoblog that the models' launch was on track. The Duramax engine adds $3,730 to the price of a comparable V6 model, but they're the most fuel-efficient pickups on the market. The EPA estimates the twins at 31 miles per gallon highway, 22 mpg city, and 25 mpg combined in two-wheel drive form and 29/20/23 with four-wheel drive. Buyers likely can't wait to finally experience these pickups after reading a heap of positive reviews. The Colorado diesel recently earned Motor Trend's Truck of the Year award. We also came away impressed with it during our First Drive and liked the Canyon during our Quick Spin. Related Video:

NHTSA investigates 1.7 million GM SUVs for windshield wiper failures

WASHINGTON - The U.S. National Highway Traffic Safety Administration (NHTSA) said on Tuesday it is investigating whether General Motors should recall an additional 1.7 million sport utility vehicles due to an issue with windshield wiper failures. GM in August 2016 recalled 367,800 2013 GMC Terrain and Chevrolet Equinox SUVs in the United States to address the problem. But after receiving 249 complaints about similar problems, the federal agency said it is probing whether the recall should be expanded to include an additional 1.7 million vehicles from the 2010-2016 model years. The automaker said it is cooperating with the NHTSA review. GM said it recalled the 2013 GMC Terrain and Chevrolet Equinox SUVs "because warranty data showed a higher-than-expected failure rate," adding it has continued to monitor field data on other model years of those vehicles. GM noted that no crashes or injuries related to the issue have been reported. The Detroit-based automaker said the recalls were prompted after a GM Canada brand quality manager reported a potential safety issue relating to reports of windshield wiper failures in Canada through GM's "Speak Up For Safety," program in late 2015. The data showed significantly higher field incidents in parts of Canada, which prompted a June 2016 recall there. Over the next two months, a higher number of U.S. reports prompted a U.S. recall, the company added. In the 2016 recall, GM said the front-wiper module would be replaced with a module that has a water deflector and, if needed, dealers would fill the water management hole and drill a new small hole in a different location.(Reporting by David Shepardson, editing by G Crosse)Related Video: Government/Legal Recalls Chevrolet GM GMC SUV