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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.

Which of these five plug-ins should win the 2017 Green Car of the Year?

It's going to be a competitive race for the 2017 Green Car Of The Year. With a minivan in the running for the first time in ages, the five finalists announced by Green Car Journal today include five very different plug-in vehicles. As Ron Cogan, the editor and publisher of Green Car Journal, said in a statement, "electrification is now considered by most automakers an essential technology for current and future high-efficiency models." Let's check out the list: Toyota Prius Prime, the updated plug-in version of the world's best-selling hybrid. Chevy Bolt, GM's all-new entry into the long-range EV game. Chrysler Pacifica, a family hauler with the ability to go 30 miles on electric power. Kia Optima. The nomination is for the full line-up, but really the hybrid and plug-in hybrid models are the green stars here. BMW 330e iPerformance, one of the automaker's many new plug-in hybrids that bring battery power to models outside the i sub-brand. Green Car Journal will announce the winners at the Los Angeles Auto Show on November 17th, along with some, "other green transportation announcements," whatever that means. Last year, the winner was the 2016 Chevy Volt, the first model to snatch up two wins. Which do you think should win this year? Related Video: News Source: Green Car JournalImage Credit: REUTERS/Kevork Djansezian Green LA Auto Show BMW Chevrolet Chrysler Kia Toyota Chevy Bolt chrysler pacifica green car of the year toyota prius prime bmw 330e

2022 Chevy Silverado ZR2 vs Ford F-150 Raptor and Ram 1500 TRX Spec Comparison

The 2022 Chevy Silverado refresh brings a new top dog off-road Chevy, the Silverado ZR2. It has the biggest V8 available, flashy looks, trick suspension and other off-road goodies. And naturally, that means people will be comparing it with the other top-rung off-road trucks, the Ford F-150 Raptor and the Ram 1500 TRX. As such, we've assembled the specifications available so far to see how the three super trucks compare. Having just been revealed, there are a few things we don't know about the ZR2, such as fuel economy and some other suspension details, but we know quite a lot. And from what we know, the ZR2 has some interesting positives and negatives compared to the other trucks. First, it's pretty clear that the ZR2 isn't as extreme as the Raptor and TRX. We wouldn't be surprised if Chevrolet insists they aren't direct competitors. Specifically it has the least power and torque by a fair margin, the smallest tires and the least ground clearance. Still, it's not completely fighting with an arm tied behind its back. It's the narrowest by a significant margin, which is good for tighter trails. It also has the best towing and payload capacity, and the approach, break-over and departure angles are quite competitive despite the "little" tires. It's also the only one to boast a locking front differential in addition to a rear locker. The Raptor can be had with a limited-slip front differential, and the TRX only gets an open front differential. Check out all the specific numbers in the chart below, as well as additional stories on the trucks featured below. Other reviews and deep dives about the new Silverado, F-150 Raptor and Ram 1500 TRX 2022 Chevy Silverado 1500 Reveal In addition to the new ZR2, the Silverado line also gets new interiors, an upgraded four-cylinder and other updates.   2021 Ram 1500 TRX First Drive Review Our review of the Raptor's chief competitor, the mighty TRX. That just sounds like we're talking about Jurassic Park.   2021 Ram TRX Suspension Deep Dive and RTI ramp test Follow along with engineer Dan Edmunds as he takes you under the TRX and explains everything there is to know about its suspension -- and how it's able to do what it does.