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GM recalls 638,000 U.S. SUVs, trucks for unintended braking

WASHINGTON — General Motors is recalling 638,000 U.S. sport utility vehicles and pickup trucks because a wheel-speed sensor could fail and cause unintended braking, it said Thursday. The recall covers 2015-2020 Chevrolet Suburban, Tahoe, and Yukon and 2014-2018 Chevrolet Silverado 1500 and GMC Sierra 1500 vehicles equipped with a 5.3-liter engine, a 3.08-ratio rear axle and four-wheel drive. The sensor failure could result in unintended activation of the driveline protection system, and cause unintended braking of the wheel on the opposite side of the failed sensor. That could cause the vehicle to pull to one side unexpectedly, increasing the risk of a crash, the Detroit automaker said. GM said it was not aware of any crashes relating to the issue but found 150 field claims alleging the condition caused unintended braking or lateral vehicle motion. A GM dealer in May submitted a warranty report relating to the issue in a 2018 GMC Yukon, and two days later, a GM brand quality manager submitted the report to GMÂ’s Speak Up For Safety program that tracks potential safety issues, which prompted a GM investigation and testing. Recalls Chevrolet GM GMC Truck SUV

This map reveals the cleanest vehicles based on location

Naysayers love to point out how dirty the electricity grid mix is when it comes to charging electric vehicles. Curmudgeons are eager to jump into any conversation about EVs to enlighten the lucky listeners about how plug-in cars contribute to pollution, sometimes even throwing in a dash of climate-change denial for good measure. (Thanks, buddy. Pray, tell me more about the plight of oppressed SUV owners.) Unless someone buys an EV just because they think they're cool (which, yeah, they often are), they probably have at least a passable understanding of their environmental pros and cons. As many EV owners are already aware, location has a lot to do with any particular plug-in car's carbon footprint. Still, there's always more to know, and knowledge is not a bad thing, especially if one uses it to do the right thing. That's why this handy-dandy map from Carnegie Mellon University is so interesting. CMU researchers have compiled information about the lifecycle greenhouse gas emissions of various EVs based on where they're charged, as compared to gasoline-powered vehicles. The researchers looked at the Nissan Leaf, Chevrolet Volt, and Prius Plug-In Hybrid versus the gasoline-dependent Toyota Prius hybrid and the stop-start-equipped Mazda3 with i-ELOOP and compared grams of CO2 emitted per mile. CMU takes into account the grid mix, ambient temperature, and driving patterns. CMU takes into account the grid mix based on county, as well as ambient temperature and driving patterns in terms of miles traveled on the highway or in the city. For instance, if you drive a Nissan Leaf in urban areas of California, Texas, or Florida, your carbon footprint is lower than it would be if you were driving a standard Toyota Prius. However, if you charge your Leaf in the Midwest or the South, for the most part, you've got a larger carbon footprint than the Prius. If you live in the rural Midwest, you'd probably even be better off driving a Mazda3. Throughout the country, the Chevrolet Volt has a larger carbon footprint than the Toyota Prius, but a smaller one than the Mazda3 in a lot of urban counties in the US. The Prius and Prius Plug-In are relatively equal across the US. Having trouble keeping it straight? That's not surprising. The comparisons between plug-in and gasoline vehicles are much more nuanced than the loudest voices usually let on.

First 2016 Chevy Volt commercial rocks us to sleep

The 2016 Chevrolet Volt, with its thorough restyling and increased all-electric range, is an exciting evolution of Chevy's groundbreaking plug-in hybrid, so it's only fitting that the commercial campaign to sell it to the masses also be engaging and vibrant. Well, the first ad has just been officially released and it rocks... us to sleep. Now, we get that General Motors didn't want to repeat past Volt-commercial mistakes. No one wants to see dogs licking feet or dumb (and weirdly horny) aliens again. Nor would it be smart to slam all-electric vehicles, since it now sells the Spark EV and has just revealed its 200-mile Bolt concept. So, what does that leave? How about a mostly computer-generated spot that relies on cliche images and an upbeat synthetic soundtrack to communicate that the Volt is now as boring as other four-door appliances? An intro, featuring a lightly-bearded gentleman peering at his tablet through designer glasses launches us into the action as the Volt makes its way across a city bridge, then a curvaceous country road. Chevrolet doesn't include voiceover to inform you that the new Volt has a 50-mile battery-only range. There's no mention of its gas mileage once its electric charge is depleted – items that just might be of importance to hybrid buyers. The ad also makes no attempt at establishing an emotional connection, either through drama or comedy. There are, however, lots of fast cuts of the new, normalized interior, including a two-second detail shot featuring the windshield wiper switch. We imagine that this is only the first in a series of spots that will tell the Volt story and motivate potential buyers to run down to their local dealer, hopefully the next spots will be more interesting and informative. View 16 Photos