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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 taps Honeywell's Quality Control System for Ultium battery plant

The Chevrolet Bolt recall has been so frustrating for General Motors that the automaker made an unexpected show of public hopelessness in saying it was "not confident" that LG — which produces the Bolt's batteries — could produce batteries without defects. Even though the remark came before investigation teams founds the source of the Bolt battery issue, it was even more strange considering GM and LG are still in bed together, the two having invested more than $2.3 billion in a 2.8-million-square-foot plant to make GM's Ultium batteries in Lordstown, Ohio. Now that GM has even more motivation to keep its Ultium batteries free of scandal, GM has tapped Honeywell for that company's Quality Control System at the Lordstown facility. The Honeywell QCS will monitor four of the production lines at the facility using "high-precision scanners and basis weight sensors." One of the parameters measured will be electrode coat weight, a key stat in battery performance. Another measurement and control company wrote, "Improving the electrode coating process is a significant part of the equation to delivering better quality and better performing cells – and coating uniformity is seen more and more as a critical requirement." Honeywell says it has more than 20 years of experience with lithium-ion technology, and the firm is already found throughout the green economy. A GM spokesman made sure to say that "the awarding of the Ultium contract to Honeywell has nothing to do with the Bolt recall." Yet in the Honeywell press release, a company director spoke words that could have come straight from GM, with, "Given the opportunity at hand, battery manufacturers such as Ultium Cells must be able to bring new solutions to market with confidence." The new Lordstown facility is scheduled to open in the first quarter of next year. It will employ more than 1,100 workers building the prime movers for coming EVs like the new Hummer and the Cadillaq Lyriq. Ideally, before then, GM will have found and fixed all of the Bolts with issues, and can begin its Ultium era under sunny skies. The automaker started accepting LG batteries again last week, the new batteries should begin reaching dealers around the same time Bolt production resumes on October 11. Related Video: This content is hosted by a third party. To view it, please update your privacy preferences. Manage Settings. Green GMC Safety Technology Electric

2021 GMC Canyon AT4 Road Test | The everyday tool

Bold take: The GMC Canyon is the most well-rounded midsize truck. Admittedly, “well-rounded” is a lukewarm compliment, but the Canyon does nearly everything well. It is not the flashiest, which is undeniably the Jeep Gladiator. Or the most comfortable, which is the Honda Ridgeline. But for those seeking a midsize truck that looks like a truck, drives like a truck and has a solid interior, the Canyon is the right formula. We would test the 2021 GMC Canyon AT4 for a week and find that itÂ’s pleasant, capable and sturdy off-road. We would haul a bookshelf in the bed, get dirty during a woodsy soft-road jaunt and pile up the miles running around town. In short, itÂ’s exactly what most need in a midsize truck.  The AT4 model is new for 2021, and it replaces the All-Terrain model, a move GMC is rolling out across its lineup. The AT4 adds an off-road-tuned suspension with hill-descent control, beefy 31-inch Goodyear Wrangler DuraTrac tires wrapped around 17-inch aluminum wheels, standard four-wheel drive with locking rear differential and a transfer case skid plate. The AT4 punches up the CanyonÂ’s appearance with red tow hooks, dark chrome elements and a bigger grille thatÂ’s similar to the SierraÂ’s. The Canyon Denali, which was also refreshed for ‘21, is showier, but the AT4 trim feels cooler with its understated off-road vibes. Considering this, we head out for an afternoon drive along a familiar route through DetroitÂ’s northern suburbs. The Canyon is a solid daily driver. The 3.6-liter V6 rated at 308 horsepower and 275 pound-feet of torque is widely used in General Motors vehicles. ItÂ’s powerful and actually sounds pretty good — even throaty — in GMCÂ’s midsize truck. Our passengers are surprised to be pulled back in their seats during hard acceleration, and the eight-speed automatic transmission is well-calibrated for the many jobs the Canyon is called upon to perform. This powertrain, standard in the AT4 and Denali trims, is a step up from the 2.5-liter inline-four and six-speed auto offered on the lower models. ItÂ’s worth it. The 2.8-liter Duramax diesel is an option on higher-spec Canyons, and its 369 lb-ft of torque is tantalizing. For everyday use, take the V6. Our tester with the gasoline V6 and four-wheel drive can tow as much as 7,000 pounds, has a maximum payload of 1,609 pounds and has respectable fuel economy of 17 mpg in the city and 24 mpg on the highway.