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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.

Cadillac CTS wins 2014 Motor Trend Car of the Year [w/video]

For the second time, the Cadillac CTS has been named Motor Trend's Car of the Year. After winning the COTY crown for 2008, the new-for-2014 CTS outdid the other two finalists for Car of the Year honors, the Mazda3 and its corporate cousin, the Chevrolet Corvette Stingray.
What's notable about the Caddy's victory, though, is how it simply brushed off its competition. Both the Mercedes-Benz E-Class and BMW 5 Series failed to make the finalist's bracket, leaving the CTS to claim victory. "It had to beat [Mercedes and BMW] on style, on performance, on comfort, and on quality. It has," Motor Trend said in its COTY recap for the CTS.
The team at Motor Trend praised the CTS chassis, calling it "fantastic," and citing weight advantage the Caddy has over the competition. There was also praise heaped on the car's engines, with the 2.0-liter, turbocharged four-cylinder getting nods of approval from the MT team. The team also raved about the VSport model and its twin-turbocharged V6, magnetic shocks and other performance accoutrements.

2019 Cadillac CT6-V preorders start at $89,785

Cadillac's top-of-range sedan will start at less than $90,000, just barely. At the North American International Auto Show in Detroit, Cadillac announced it is opening preorders for the 2019 CT6-V, which will start at $89,785. Keeping things exclusive, Cadillac has 275 preorder slots available to the U.S. market for the CT6-V. It will briefly join the ATS-V and the CTS-V to give Caddy a trio of powerful sedans before the ATS-V and CTS-V bow out after the 2019 model year to make way for new models. Cadillac offers less powerful V-Sport variants, as well. The CT6-V, formerly the CT6 V-Sport, uses a Cadillac-exclusive powertrain. The twin-turbo 4.2-liter V8 makes a claimed 550 horsepower and 627 lb-ft of torque. This engine is hand-built and nicknamed the "Blackwing." It is linked to a 10-speed automatic transmission, which puts power to the ground through Cadillac's all-wheel-drive system. As an added luxury perk to buying the CT6-V, Cadillac will include 2 days at the V-Performance Academy at Spring Mountain. The trip is essentially all expenses paid, with tuition and luxury accommodation part of the package. Cadillac estimates the first CT6-V models to arrive in mid-2019. Now, it was widely reported that the Detroit-Hamtramck production facility that builds the CT6 would be among those closed by GM. Cadillac President Steve Carlisle told Automotive News, however, that the company is exploring production alternatives to keep the flagship luxury sedan for sale in the United States. Apparently, it was never actually on the chopping block, and instead, officials at the time of the plant closure announcement failed to mention that CT6 production would be moved rather than cancelled. Where that new facility would be has yet to be announced, but Carlisle told Automotive News that moving production to China, where the CT6 Plug-In Hybrid is built, is "the least-preferred option." Related Video: