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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.

A spotter's guide to Super Bowl LIV car commercials

Set to kick off on Fox at 6:30 ET on Sunday, February 2, from Hard Rock Stadium in Miami, Florida, the big game will feature the Kansas City Chiefs and the San Francisco 49ers. Throughout Super Bowl LIV, viewers will see about 50 commercials, each of which costs as much as $5.6 million per 30 seconds, according to AdWeek. Originally, there were more than 77 ad slots, so several companies could be paying well more than $10 million for a single, longer commercial. Numerous car companies have already announced their commercials, or their intentions to show commercials, during the game. Here's a roundup of the ones we know about so far. During the game on Sunday, we'll be livestreaming and adding links to the new commercials as they become available, so check back with us for that post.  Audi: E-Tron Sportback Maisie Williams has experience wearing many faces, and in Audi's Super Bowl commercial, she does her best Elsa impression. In the spot, titled "Let It Go," Williams faces the rigorous task of getting through L.A. traffic, but she's alleviated by the comfort of the Audi E-Tron Sportback electric crossover. The commercial is meant to signal the company leaving its gas past behind and moving forward to a sustainable future.  Genesis: GV80 Genesis makes its Super Bowl debut with a commercial that will show its all-new SUV, the GV80, to viewers around the world (many of which will be seeing the vehicle for the first time). The ad features Chrissy Teigen and John Legend as the purveyors of "new luxury," while "old luxury" is left for the birds. GMC: Hummer General Motors is bringing back the Hummer nameplate as a premium electric GMC truck. GM says it will have 1,000 horsepower and will be capable of going zero to 60 mph in three seconds. GM brought in NBA legend and Hummer fanboy LeBron James for the debut commercial. Hyundai: Sonata Hyundai is known for bringing in the big-time celebrities for its commercials, and 2020 is no different. A new advertisement called "Smaht Pahk" features John Krasinski, Chris Evans, and Rachel Dratch, all three of whom are from the Boston area. The trio gets into full character as they discuss the new high-tech parking feature on the redesigned 2020 Hyundai Sonata, and David Ortiz makes a cameo at the end. Even when New England isn't in the Super Bowl, New England is in the Super Bowl.

Hummer teases crab mode, reveal set for Oct. 20

DETROIT — GMC confirmed it will reveal the Hummer electric off-roader Oct. 20 and released a video teasing the vehicleÂ’s so-called crab mode. Crab mode allows the Hummer to move diagonally and is enabled by the vehicleÂ’s four-wheel steering. The video shows tires, and well, a crab. “When you're in the really difficult terrain, this just gives you unparalleled maneuverability,” said Duncan Aldred, global vice president of Buick GMC. The Hummer will be offered as truck and SUV models, and customers will be able to make reservations beginning on the reveal date. Deliveries are expected to begin in fall 2021. The Hummer was supposed to be revealed May 20, but was delayed due to the Covid-19 pandemic. The Hummer was teased in a Super Bowl ad this year with NBA superstar LeBron James, who is the vehicle's frontman. It will have several EV powertrains which General Motors calls Ultium, and the most capable variant will have an estimated 1,000 hp and hit 60 mph in three seconds. The Hummer will also offer removable roof panels. “This is very much going to be a luxury vehicle which competes against a broad spectrum,” Aldred said Monday on a conference call with reporters. The Hummer will take aim against a variety of vehicles, including the four-door Bronco, RivianÂ’s truck and SUV and the Jeep Wrangler 4xe. Aldred is optimistic the return of the Hummer name will help GMC carve its niche in this growing segment of trucks and SUVs with varying degrees of electric propulsion and off-road capability. GM sold vehicles under the Hummer brand from 1992-2010, before scrapping it in the wake of GMÂ’s historic 2009 bankruptcy and restructuring. Hummer is relaunching under the GMC umbrella. “ItÂ’s real desirability, itÂ’s almost cult-like status,” Aldred said. “I think a huge amount of people are going to have interest in this.” GM, which is re-emphasizing its defense division, could also repurpose the Hummer for military use, perhaps as transport vehicles. Hummers are descended from the Humvee, which is still used by U.S. forces.