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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

Take a close look at the guts of the Chevy Volt battery, powertrain

Just how intimate would you like to get with the powertrain in a Chevy Volt? If you're anything like YouTube user d55guy, then spending a half hour filming yourself taking apart the battery pack, motor, inverter and more for a look inside sounds like your idea of fun. After all, this way you get to see the cooling system, the heavy safety kill switch and count up the individual cells in the battery modules. Fun! Turns out, we also enjoy languidly paced Volt dissection video goodness, and we think you might want to see it as well. So, we've embedded two videos below and if you don't have a better understanding of how the Volt is put together after watching them, well, at least you can't say we never tried to show you anything. Given that what's really happening here is the organized 'destruction' of an expensive and potentially dangerous object, let's talk safety. There's a serious disclaimer at the beginning of the videos and on the YouTube description page, but we feel the need to repeat the gist of it here: do not try this at home. The creator of the video says he is a trained engineer and has been doing things like this "for the better part of a decade," so he apparently knows what he's doing. With that in mind, watch it all below. When you're done seeing the insides of a Volt powertrain up close, if you need more filmed EV dissection/destruction, check out this video designed for first responders approaching a damaged Tesla Model S. This content is hosted by a third party. To view it, please update your privacy preferences. Manage Settings. This content is hosted by a third party. To view it, please update your privacy preferences. Manage Settings.

2015 Chevy Volt will be available with 4G LTE

General Motors teased consumers two years ago when it showed off a Chevrolet Volt decked out with 4G LTE connectivity. More details were finally unveiled this month at the Consumer Electronics Show in Las Vegas: the 2015 Chevy Volt will have a 4G LTE option and will offer consumers an as-yet-unpriced option with much faster wireless internet connection and more smartphone apps. GM's OnStar has teamed up with AT&T to come up with several mobile apps alongside the roadside assistance. The Volt joins the 2015 Corvette, Impala and Malibuz models that will debut with a 4G LTE option this year. The first four 4G ChevroLTE models will be released this summer and will be joined by the Spark (EV and gas versions), Equinox, Silverado and Silverado HD. GM has yet to announce whether any Cadillac or Buick models will get the 4G option. Chevrolet Accelerates to 4G LTE Speeds in 2014 Bowtie brand models in U.S. and Canada to get OnStar 4G LTE by summer LAS VEGAS – Starting this summer, Chevrolet will have some of the fastest vehicles on the roads, and that has nothing to do with horsepower. Chevrolet drivers will be enjoying high-speed data - made possible by a new OnStar 4G LTE connection in the vehicle, running on AT&T's network, the nation's fastest and most reliable 4G LTE network. Chevrolet today announced at the Consumer Electronics Show that the 2015 Chevrolet Corvette, Impala, Malibu, and Volt would be the first General Motors' vehicles to come optionally equipped with OnStar 4G LTE. They will be followed by the Equinox, Silverado, Silverado HD, Spark and Spark EV. In the Canadian market, OnStar with 4G LTE will be introduced on the Chevrolet Trax as well. The majority of the 2015 Chevrolet lineup in the U.S and Canada will have a 4G LTE connection built-in at vehicle launch. More models will be announced later this year. "Chevrolet is expected to implement the broadest deployment of 4G LTE in the automotive industry," said Alan Batey, senior vice president of Global Chevrolet. "The fact that OnStar with 4G LTE will be available in models that range from the Chevrolet Spark to the Silverado to the Corvette, is indicative of our broad commitment to deliver more value and convenience through smart technology applications.