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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.

2018 GMC Yukon Denali gets a sculpted new grille

More than half of all GMC Yukon and Yukon XL models sold wear top-level Denali trim. That's a profitable scenario for the automaker, so, perhaps above all else, GMC needs its premium Denali series of vehicles to continue to stand out in a line of trucks and SUVs at the dealership lot. Hence, chrome, and lots of it. But for 2018, GMC is blessing the behemoth Yukon Denali with an added dose of class with a new multi-dimensional grille. "The new grille, which is flanked by HID headlamps and LED Signature Lighting, advances the design legacy established with the very first Yukon Denali in 1999," said Matt Noone, director of Global GMC Exterior Design. In addition to a sophisticated new look, the grille adds customizable cooling capabilities to the Denali range. Active shutters open when additional cooling is needed, or close to reduce aerodynamic drag when the engine isn't too warm. Further increasing the efficiency of the big brutish 'ute is a new 10-speed automatic transmission. That's two extra gears over the 2017 Yukon Denali, leading to a numerically lower final drive to help save fuel at highway speeds. Inside, Mastique Ash wood trim differentiates the 2018 model from previous years. A 420-horsepower 6.2-liter V8 engine remains standard for 2018, as do blingy 20-inch wheels with 22 inchers optional. Related Video: Design/Style GMC SUV Luxury gmc yukon denali

Chevrolet considering midsize crossover to slot between Traverse and Equinox

Crossovers are the new hotness, and automakers are looking to cash in by offering a size and shape for every customer. With Chevrolet's debut of the new 2018 Traverse in Detroit, which grew ever so slightly compared to the first-generation model, there is now a midsize-crossover-sized hole between the three-row Traverse and the compact Equinox. When asked about that obvious space, a Chevrolet spokesperson told us the company is looking into the possibility of expanding its crossover lineup. It should be a relatively simple thing to do, since all it would take is reskinning and rechristening the GMC Acadia with a bow tie, and we all know how much GM loves platform sharing. Although they're now different sizes, the new Acadia and Traverse still use the same platform; the Acadia is now on a short-wheelbase version of the C1XX while the Traverse uses long-wheelbase C1XX parts. A short-wheelbase Chevy built on the C1XX likely would be differentiated visually from both the Acadia and the larger Traverse. It may seem like flooding the lineup with more and more models would cannibalize sales of existing ones, but Chevrolet said it would rather have customers stay within the brand rather than going to another automaker. There have been whispers that some form of the Blazer name (possibly TrailBlazer) may make a return on a midsizer, but if it does don't expect an old-school body-on-frame SUV like the old one. In the end, if Chevy builds it, customers will come. Related Video: