1964 Chevrolet Impala on 2040-cars

Auto blog

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.

Why does the Corvette Stingray have so many vents? Here's why

Just looking at the new 2014 Chevrolet Corvette Stingray, it's not hard to see that the car's design was created with aerodynamics at the forefront, but Chevrolet designers point out exactly what went into designing the iconic coupe in a pair of recently released videos. The videos show the Corvette going through early design phases, including clay models and wind tunnel tests, as well as talking to the car's chief engineer, Tadge Juechter.
Both videos help explain various aspects of the C7 Corvette, but it's the aero tuning of the car that is most interesting. This includes extra attention paid to the lower air dam and vented hood to help reduce drag and lift, while the rear quarter inlets are for differential and transmission cooling. Juechter said that some of these aero-tuned elements were inspired from GM's involvement in racing.
If you have about five minutes and you can't get enough information about the new 'Vette, then check out the videos posted below.

2016 Chevrolet Silverado 1500 Quick Spin [w/video]

The Silverado 1500 gets what most would consider an early update for 2016. Just two years into this generation, the half-ton Chevy truck has been given a visual overhaul and a handful of feature upgrades. Chevy reps say they didn't wait the usual three years for a refresh because they knew the domestic competitors were planning updates of their own for 2015. We're told the fast refresh was always in the plans, and that it wasn't a response to critics (like us) saying "meh" to the new truck's design, which some felt hewed too close to the GMT900s that came before. If a Ford grille that reaches halfway into the headlights is good, a Chevy grille that cuts the units clean in two must be better. That's at least how we imagine the designers' thought process went. Those new split lights use HID projectors on lower models and full-LED tech on the upper trims, with all versions getting LED daytime running lights. LED taillights are also included on the fancier models. <p>Your browser does not support iframes.</p> Each of the eight trim levels has its own look, and the differentiation goes beyond the placement of chrome and the color of cladding. Look closely and you'll see that elements of the various grille treatments are repeated within the headlights. It's a neat touch, and proof that attention to detail is still a thing. Chevy also reshaped the hood, with sharp lines and pockets that look like they'll do a great job of collecting snow come winter. We get why a Corvette has troughs in its hood (you know where the wheels are and see through the valley to the road) but the surfacing on the Silverado's engine hat has only aesthetic benefits. On the feature front, almost all 2016 Silverado models get standard Apple CarPlay and Android Auto support; the 7.0-inch screen includes both, while the available 8.0-inch screen will add Android Auto through an update in March of 2016. The top High Country trim gets new power-articulating side steps as an option. In addition to swinging down to help you hoist yourself in through the door, the steps have a button at the rear that, when pressed, motors them down and rearward to give you a foothold at the front of the bed. Chevy also catches up to the competition with an available remote-locking tailgate. Chevy also gets further into the competitive numbers game for 2016 with expanded use of its eight-speed truck transmission.