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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.

GMC Envoy could be returning as GM files for 'Envoy' trademark

The GMC Envoy could be on its way back, if a recent GM trademark filing is any indication of the future. To be exact, GM's trademark filing is for the name "Envoy," and is applicable to "motor vehicles, namely, sport utility vehicles, engines therefor and structural parts thereof." A victim of the recession and high gas prices, the original Envoy – related to the Blazer, and more recently the TrailBlazer and similar GM SUVs – was discontinued after the 2009 model year. In today's SUV-happy market of low gas prices, unearthing the somewhat familiar Envoy name makes a certain amount of sense. As soon as gas prices start trending in the other direction, we'll all be saying the opposite, though. What this SUV will take shape as is the big question now. With the Chevrolet Blazer well and truly on its way, there's every reason for a GMC version of Chevy's stylish new crossover sporting the Envoy name. Another, less likely, possibility is a Traverse-sized vehicle to slot between the shorter Acadia (10 inches shorter than the Chevy Traverse) and the body-on-frame Yukon. GM could come out of left field and make the Envoy a Buick too. It fits the bill with the "En" beginning, and Buick undoubtedly has crossovers in the works. We think that's even more unlikely, but it's important to remember that we're still in the speculation phase. Soon we'll drive Chevy's new Blazer, and perhaps have more news then. Check in next week for that. Related video:

Recharge Wrap-up: Volt makes up third of Quebec Chevy dealerships sales, Tesla seeks Aussie talent

A Chevrolet dealership in Quebec has had the Volt make up 35 percent of its sales so far this year. Bourgeois Chevrolet in Rawdon, Quebec received recognition for the feat at the 2014 Electric Vehicle Conference, where it won the award for Leading Plug-in Hybrid Electric Vehicle Dealership. To sell that many, Bourgeois Chevrolet had to import used Volts from the US, and keeps about 50 units on the lot in various configurations. The conference also saw Park Avenue Nissan of Brossard, Quebec win the Leading Battery Electric Vehicle Dealership Award, and Loch Lomond Mitsubishi of Saint John, New Brunswick receive the award for Electric Vehicle Dealership Inspiration. Read more at Green Car Reports. Tesla Motors has begun scouting Australian engineers as other automakers shutter operations there. Ford, General Motors and Toyota have announced that they will shut down their Australian factories, leaving behind a lot of unused talent. Tesla recently held a "Recruiting Open House" in Melbourne for engineers to fill positions at its plant in Fremont, CA, where they will be paired with other Aussie engineers already on staff. Read more at Green Car Reports, or at Motoring. Electric turbochargers may come to play a key role in making internal combustion engines more efficient. Valeo recently showed an electric turbo it plans to supply to an unnamed automaker at a fuel economy showcase event at the EPA's National Vehicle Emissions and Fuel Lab. Electric turbochargers have the advantage of greatly reduced lag when compared to exhaust-driven turbos. They also work well when paired with cylinder deactivation, providing a much-needed boost when driving on a grade, which can help reduce the need for cylinders to reactivate. Independence from the exhaust system also makes it easier to package the turbocharger wherever there is room. Read more from Navigant Research. US crude oil futures have dropped to their lowest in more than two years. Saudi Arabia cut oil costs for the US and raised them for Europe and Asia as the US has increased output. On November 3, US crude futures fell as much as 2.2 percent in New York. West Texas Intermediate closed at $78.78, the lowest since June 2012. Brent crude slipped $1.08 to $84.78 a barrel. Read more at Bloomberg.