2013 Cadillac Xts Platinum on 2040-cars

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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.

GM invests $175 million to replace 3 Cadillac sedans with 2

We've already had confirmation that Cadillac is sunsetting the ATS compact sedan and strong hints that Caddy would discontinue the full-size XTS (pictured above) and midsize CTS, too. Now all three are confirmed, with GM saying it's investing $175 million to build two replacement sedans. GM has already begun installing new tooling at its Lansing Grand River assembly plant in Michigan. That will go toward building two new sedans, which reports suggest are likely to be called the Cadillac CT5 and CT4, or possibly the CT3. It's part of Cadillac's plan to introduce a new vehicle every six months by the end of 2021. A spokesman told the Associated Press that the new cars will debut within that time frame and that the changes won't affect staffing levels at the plant, which employs 2,000 people. Of the three, the XTS is expected to go away entirely, while the CT5 would replace the CTS, straddling the line between a compact and midsize four-door. The CT4 or CT3 would take the spot of the ATS and likely be smaller. That would leave the CT6 as the brand's largest sedan and leave Cadillac with three sedans starting with the 2019 model year. Meanwhile, Cadillac has only one model, its top-selling XT5, representing the all-important and red-hot luxury crossover segment. It's prepping a midsize XT4 crossover for sale later this year as a 2019 model. Cadillac's global sales rose 15.5 percent in 2017, thanks largely to growth in China, but sales in the U.S. fell 8 percent for the year to 156,440 vehicles. Sales of the ATS fell 39 percent, dropped 35 percent for the CTS and 27 for the XTS last year. Related Video:

2016 Cadillac ATS-V Sedan Beauty-Roll

For those of you paying attention, we've really ramped up the old Autoblog video game these days. Our new series Car Club USA joins Translogic and The List, and there are more Daily Drivers and Short Cuts than ever. But sometimes, all you care about is the car. The Autoblog Beauty-Roll video series has one goal: bring you glossy video images of cars, and nothing but. We're collecting moving pictures of all the cars we test, inside and out. Each episode comes with a hit of engine sound – start-up and with a few revs – to round out the package. Set your resolution to max, kick it into full-screen, turn up the sound, and enjoy today's subject, the 2016 Cadillac ATS-V Sedan. Oh, and if you'd like more Beauty-Roll, click here to see the back catalog.