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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.

Super Cruise will feature in 22 GM nameplates by 2023

Super Cruise, the semi-autonomous hands-free driving technology that first appeared on the 2018 Cadillac CT6, was always intended to broaden out to more GM models, especially now that CT6 production has ended, but now we have specific numbers. Automotive News reports that GM will have it on 22 nameplates by 2023. GM President Mark Reuss spilled the beans to investors at the company’s Capital Markets Day presentation, saying that Super Cruise will start appearing in brands beyond Cadillac in 2021. GM just last week announced the first big update for its driver-assist technology late last month, saying it would be coming to the 2021 CT5, CT4 and Escalade full-size SUV, all of which should debut later this year. Next year weÂ’ll see it offered as an option on seven more nameplates, then a dozen more in 2022 and 2023, Reuss said. The next generation of the technology will come with a new feature called “Lane Change on Demand,” which will allow the driver to activate or tap the turn signal and the car to do a hands-free lane change if itÂ’s safe to do so, and so long as the driver monitor system can tell the driver is paying attention. ItÂ’s also said to feature improved performance and hands-free dynamics, a better user interface and software tweaks, among other upgrades. Super Cruise uses a camera and infrared light to detect whether the driver is paying attention, plus radar, cameras and lidar mapping to center the vehicle in a highway lane and drive in hands-free mode in optimal scenarios. ThereÂ’s no immediate word on whether the upcoming next-generation version will also come with an expanded network of compatible highways beyond the 200,000 miles where the technology is currently capable of being deployed. Autoblog named Super Cruise the 2019 Technology of the Year winner. Related Video:     Cadillac GM Emerging Technologies

Cadillac adds torque-number badging to most new models starting in 2020

Few phrases describe huge swaths of America better than a phrase spotted on the back of a top-fuel dragster at an NHRA event: "You can never have too much horsepower or ammunition." If Cadillac CEO and wily Canuck Steve Carlisle has his way, the revised phrase would substitute "torque measured in Newton-meters" for "horsepower." Starting with the 2020 model year, America's luxury brand will add torque figure badges to CT and XT models, beginning with the XT6. The badge above kinda almost sorta represents the torque produced by the luxury crossover's 3.6-liter V6. That badge did not appear on the XT6 we photographed at the Detroit Auto Show. In U.S. parlance, twist in the XT6 comes to 271 pound-feet. Translated to Newton-meters, that's 367 Nm. Then round that up to the nearest 50, which Cadillac will do, and one arrives at 400. True, the rounding prevents a future of number jumbles like the 2020 XT6 367 vs. the 2021 XT6 419T. Nevertheless, we don't know why Cadillac is rounding to the nearest 50 instead of the nearest 25, since 50 Nm is about 37 lb-ft and could conceal a decent torque increase between model years. A "T" denotes turbocharging, and we imagine there'll be designations for hybrids and electric cars. We think most modern attempts at engine-based nomenclatures soon get as complicated as ciphers or come unmoored from their original scheme. And based on our experience with The Average Car Buyer, they don't care. A bigger number, no matter what that number represents, means more, which is the important thing. Because America, right? Maybe not. Carlisle said, "We're not talking about displacements any more," and the new badging will give consumers "a clear understanding of the power differences across the lineup." The brand believes torque provides a better comparison between ICE, hybrid, and EV powertrains and "the balance between fuel economy and performance." As for the immigrant unit of measurement, Carlisle told CNET, " It's metric, it's universal, it's global, we have to think about all the markets that we're doing business in." Oh, and, "Engineers certainly prefer Newton-meters." The new nomenclature will not be applied to V-series models or the Escalade, because the CEO holds that "special cars get special names." We should probably take a moment to reassure the CT and XT models that Steve Carlisle thinks you're all special, too. Just a different kind of special.