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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.

New presidential limo spotted in use for the first time

It has been a long lead-up to the new presidential limousine, but now it appears General Motors has "The Beast" in working order for President Donald Trump. The new limo was spotted in public for the first time this weekend in New York City in Trump's motorcade, reportedly on its way to Trump Tower. Said to have been in development since 2013, the $15.8 million armored Cadillac is making its debut as Trump's ride to the U.N. General Assembly this week. The grille suggests looks along the lines of a Cadillac CT6 V-Sport, but the similarities don't go much beyond that. If you look closely, Trump appears to be in the second "Beast" of the twin truck-based Cadillacs that go by in the video. The limo has a diesel engine to propel its near-20,000-pound self down the road, but we couldn't detect much of an oil-burner sound over those gigantic truck tires. This week in NYC will showcase motorcades and fancy presidential limos from around the world, all coming in for the big annual meeting at the U.N. Trump's presidential limos get shipped around the world too because they have their own plane: a C-17 Globemaster cargo carrier. There's no shortage of cool features on the new limo, and we detailed those here. While some of the awesome defense mechanisms are public knowledge, we're sure there are plenty that remain classified. New model presidential limo noticed awaiting Pres Trump at Wall Street heliport. Photo by @stevebruskCNN pic.twitter.com/lEytRcJ9rt — Mark Knoller (@markknoller) September 23, 2018 Featured video:

2020 Cadillac XT5 is barely being refreshed

Cadillac has been making a serious effort to expand its crossover offerings with the all-new XT4 and XT6. With them has come slight changes to Cadillac's design language, leaving the existing XT5 looking a little out of the loop. Well, it appears that's about to change ... sort of. One of our spy photographers caught a 2020 Cadillac XT5 out testing, and it has some changes that suggest a refresh. You do have to look closely to tell anything has changed, though. And even then, the only noticeable change is to the grille, which is now dotted with little quadrilateral shapes similar to those on XT4 and CT5. You can see one of the two current designs below. Otherwise, the bumpers and lights haven't been changed at all. View 21 Photos We suspect there will be other small changes in store for the crossover. It could switch from an eight-speed transmission to a nine-speed unit like the one the XT6 will use. This would be likely considering they both use the same V6 engine. We wouldn't rule out adding an optional turbo four-cylinder engine borrowed from the XT4, but that would be a fairly significant and less likely change. The interior could see some updates, and Cadillac could possibly try to shoehorn in its new infotainment system from the new batch of cars. Then again, changes could simply be limited to new materials and some extra features. With such a light update, we expect the updated 2020 XT5 will make its debut sometime this year with sales coming shortly after.