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Fullsize GM SUVs have a problem that's making owners sick

Some fullsize SUV owners are getting sick, thanks to a buffeting and vibration problem in 2015 model year examples of the Chevy Tahoe and Suburban, Cadillac Escalade, and GMC Yukon. According to owners' complaints to the National Highway Traffic Safety Administration, the issue can vary from an annoying vibration inside the cabin to an experience so severe that it leads to dizziness and headaches. General Motors is aware of the complaints, but the fix isn't so simple. According to spokesperson Tom Wilkinson to Autoblog, the company "has been tracking this issue for a while." The problem has a fairly low incidence rate, but when it does occur the issue can be "uncomfortable and annoying for owners." There's no precise cause for the issue, Wilkinson claims, and in some cases, simply balancing the tires or changing the door seals can make it go away. However, not all of the fixes are so simple. AutoGuide dug deep into the problem and discovered a GM preliminary information bulletin that advised dealers to remove the headliner and to check the roof's bonds to the bows that go across the vehicle. However, that document included a note that the solution might not entirely eliminate things. According to AutoGuide, adding Dynamat insulation to the roof sometimes helped the problem. A GM spokesperson also told AutoGuide the company fixed the problem at the end of the 2015 model year, and didn't go into any more detail. This roof issue seems linked to some of the worst droning in these SUVs. According to one complaint from a 2015 Suburban owner to NHTSA: "Roof will not remain attached to the roof bows. This causes the buffeting similar to a window being down when all are up. The results span from annoying to painful." A 2015 Yukon owner claims to have another alleged cause for the problem in a NHTSA complaint from February 2015. This person brought their SUV to the dealer seven times over the course of four weeks for vibrations. The dealer replaced the driveshaft, suspension components, and more, but nothing worked. According to an engineer to the service adviser: "In an effort to prevent roll overs, they designed the frame and body mounts too stiff. There are 40 engineers working on issues, they have no solutions that work across the board." Wilkinson told Autoblog that GM is working with customers on an individual basis to rectify things. Since these are newer vehicles, dealers should also fix the problem under warranty.

Hacker jury rigs Amazon Echo into voice-controlled remote start

A lot of automakers have smartphone apps to start, lock, or unlock a connected car. Some automakers will even let you do that with a smartwatch. Then, there's YouTube user Jryanishere, who decided to use Amazon's chatty Echo voice-controlled, internet-connected information thingy. Yes, we said thingy, because we aren't really sure how else to describe the Echo. While the Echo system has received a hearty ad campaign – featuring Alec Baldwin asking Amazon's virtual assistant, Alexa, questions and ordering socks – we think this might be the first really useful thing we've seen it do. Using a MacBook, a Raspberry Pi, an Echo, an OBDLink plug-in, and his 4G LTE-equipped GMC, Jryanishere has basically made a voice-controlled remote-start system. Now, like so many voice-controlled things, this strikes us more of an extravagance than something that's functionally worthwhile. After all, the remote start on the a GMC keyfob isn't exactly rocket science. You can check out the Echo in action up top. Jryanishere gives a pretty thorough breakdown of how the setup works in the video above, but if you're at all into this sort of technological mischief, you'll want to watch (and check out the hilariously detailed blog explaining the job). Related Video:

Next-generation GMC Canyon, Chevy Colorado spied together

With the debut of the next-generation GMC Canyon coming in a couple of months (in off-road-ready AT4 guise no less), it's no surprise that both it and the Chevy Colorado are out testing without the heavy coverings of early prototypes. One of our spy photographers caught examples of both trucks with close-fitting vinyl wraps. This gives us a great opportunity to see each pickup more clearly, but also to compare and contrast the designs. From the front, the GMC features a narrower, but seemingly taller grille. At the top are slender lamps. They seem to be daytime running lights, though, and below them are much larger units that will function as the actual headlights. The prototype shown seems to be one of the AT4 variants, based on the lack of a lower air dam and the opened up corners of each bumper. Small fog lights show up in the lower bumper, too. As for the Chevy, its grille is wider, and it blends into the headlights. The lights are at the top of the grille, and they seem to incorporate the actual headlights, not just running lamps. The grille mesh has some interesting detailing, and there are auxiliary lights below the main headlights. This one seems to be a more mainstream Colorado model since it still has a front air dam, possibly a Z71 model, considering the chunky tires. Not surprisingly, the two trucks are very similar from the sides and the rear. They have cabins that look lower, longer and more squared-off than the current models. The fenders look more punched out and aggressive, too. The main differentiator between the Chevy and GMC are the wheel openings. The GMC has sharp corners and the Chevy has more rounded ones, as is the case with the full-size trucks. As previously mentioned, the GMC Canyon AT4 will be revealed this summer, so likely in just a month or two. The Colorado will likely be revealed this summer, too. It's expected that it will use the turbocharged 2.7-liter four-cylinder shared with the Silverado. Naturally, it will be available with two- and four-wheel drive and a variety of trim levels including the AT4 and ZR2 off-road versions. Related video: