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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.

Lincoln hijacks Cadillac's 'Dare Greatly' tagline

Talk about comedy - not even 24 hours after Cadillac teased its CT6 while inviting us to "Dare Greatly" during the Oscars telecast, Lincoln was doing the same but on Google. An anonymous tipster informed us the day after the Oscars that typing "dare greatly" into Google returned two ads before the search results. When we checked it over the course of a few hours, the first ad was always for Cadillac and either read, "Cadillac - Dare Greatly - Only those who dare drive the world forward," or, "Cadillac - Dare Greatly - It's not the critic who counts, it's the man in the arena." (On a side note, come on, Cadillac - "the man in the arena?" Well. It's a quote. Suppose that's all right, then.) The second result was for Lincoln and read, "Dare Greatly - It's not about making a statement, it's about doing what you love," with the associated URL being www.lincoln.com/dare+greatly. The first time we clicked it, it went to the Lincoln homepage showing the 2015 MKZ Hybrid. The second time, we got a page saying that the Lincoln site wasn't available; the Lincoln site was fine, the link didn't work. There's no reference to the Google joke at the Lincoln site - this was just about getting eyeballs. The English have the perfect phrase for Lincoln's provocation: "You've got some cheek!" We think it cunning, dastardly, and funny, and there's no doubt it worked - they knew people would flock to search the term. One of our competitors, Autotrader, said that within an hour of the first of four Cadillac spots airing during the Oscars, car searches for Cadillac vehicles climbed 53 percent from pre-Academy Award coverage levels. Searches for Cadillac cars were up 120%, they said. If this is Round One of our homegrown scrappy old-timers going at it, we're all for it. News Source: Google Marketing/Advertising Cadillac Lincoln Luxury

GM faces possible class action lawsuit over 8-speed transmission

General Motors has been hit with a class-action lawsuit from owners who allege the eight-speed automatic transmission found in several rear-wheel-drive Chevrolet, Cadillac and GMC models between the 2015 and 2019 model years has a defect that causes the vehicles to hesitate and jerk when accelerating or slowing down. The lawsuit was posted to ClassAction.org and spotted by GM Authority. Problems with GM's Hydra-Matic 8L90 and 8L45 transmissions have been well-documented on Internet forums and via complaints filed with the National Highway Traffic Safety Administration, with many reporting damage to their vehicles. The lawsuit was first filed in December in U.S. District Court for the Southern District of Florida but appears to have been transferred recently to New York. Autoblog sought comment from Theodore Leopold, the lead attorney for the plaintiffs. "These transmissions have a common defect," the complaint reads. "Drivers attempting to accelerate or decelerate their cars feel a hesitation, followed by a significant shake, shudder, jerk, clunk, or 'hard shift' when the vehicle's automatic transmission changes gears." The problem also occurs when the vehicles accelerate in a single gear, without shifting, the plaintiffs allege. "Drivers have reported that the shift is sometimes so violent, they feel as though they have been hit by another vehicle." The problem is believed to center on the transmission, torque converter or both. The complaint says it causes undue friction, causing hydraulic systems and gears to function improperly and sometimes leaves metal shavings throughout the transmission, leading to costly repairs and replacement of parts or the entire transmission. It says GM has known about the problems since shortly after it introduced the transmissions, and has issued 13 technical service bulletins, none of which have resolved the problem. GM declined to comment on the lawsuit. The plaintiffs say GM should have warned consumers about the issues and covered repairs under each vehicle's three-year/36,000-mile bumper-to-bumper warranty. They're seeking statewide classes in at least six states: California, Florida, Illinois, New York, Oklahoma and Texas.