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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.

Cadillac plans upgrades to its Super Cruise hands-free system

Not content to let Tesla hog the spotlight with lofty claims about its autonomous driving capabilities, Cadillac plans major upgrades to its Super Cruise automated driving system starting next year, when the technology starts rolling out in more models. "The system that we have today, we continue to upgrade," Brandon Vivian, Cadillac's executive chief engineer, told The Verge. 'We have over-the-air re-flash capability, and you'll continue to see us add features and capabilities to Super Cruise going forward." A fellow top Cadillac engineer told the outlet they would not share specifics but said "We want to innovate" as competitors also make advances in self-driving technology. The news comes as Elon Musk says Tesla will launch a driverless robotaxi service in some U.S. cities next year, with "over a million cars with full self-driving, software, everything." The audacious claim hinges on a new Samsung microchip for self-driving vehicles. Last year, Tesla rolled out Navigate on Autopilot, which allows vehicles to change lanes, take exit ramps and choose the correct highway interchange and exit. At the New York International Auto Show, Cadillac announced that it will equip the forthcoming 2020 CT5 sedan with Super Cruise, though not initially. The brand plans to roll out a new model equipped with Super Cruise every six months starting in 2020 and going through the end of 2021, meaning four new models with the technology in two years. Super Cruise previously has been offered only on the CT6 Platinum, and as an option on other CT6 trim levels, along with a three-year OnStar package. It uses cameras, lidar mapping and radar, plus an infrared camera mounted atop the steering column to make sure the driver isn't nodding off, looking away for too long or climbing into the back seat. There's also an LED light bar on the steering wheel and Super Cruise icon on the instrument panel to let drivers know when the system is ready, not ready and ready to deactivate. But the system can't switch lanes and only works on around 130,000 miles of divided highways that GM has mapped with lidar-equipped vehicles. Vivian said the Super Cruise setup in the CT5 will be largely the same as in the CT6 and likened it to "a half step in between" a full next generation of the technology. GM also plans to eventually roll out Super Cruise to its entire U.S. lineup following its introduction in all Cadillac models. Autoblog named Super Cruise the 2019 Technology of the Year winner.

GM, Pilot will build EVgo fast chargers at 500 truck stops across U.S.

All of our maps showing electric vehicle charging stations across the U.S. are going to need an update. Today, General Motors, Pilot and EVgo announced plans to work together on a nationwide DC fast charging network. The plan calls for 2,000 charging stalls that can deliver up to 350 kW to be installed at up to 500 Pilot and Flying J travel centers in the U.S. The goal is to have DC fast chargers available in 50-mile intervals across the country. The new charging stations will feature GM's "Ultium Charge 360" branding and "Pilot Flying J" logos but will not be limited to drivers of GM EVs. The plugs will use CCS connectors and be available to anyone. GM EV owners can take advantage of benefits, including the ability to make exclusive reservations, get discounts on charging costs and streamline the charging process with Plug and Charge and in-vehicle apps that can provide real-time charger availability. The first installation phase will take place in 2023, and "the bulk of the installations" should be completed by 2025, EVgo CEO Kathy Zoi said during a conference call with reporters announcing the plan. "We're gonna get going immediately and commence all of that engineering and planning stuff," she said. "We've got a pretty orderly plan." Pilot CEO Shameek Konar said the company expects the new EV charging stations to coexist with the current fuel infrastructure. "An average Pilot Flying J location is about 10 acres," Konar said. "This will be in addition to all of our gas pumps. The way I think about it is, this is a new source of energy that is going to coexist with gas for quite some time. We can debate how long, but we need to serve both groups of customers." Installing DC fast chargers at hundreds of Pilot's travel centers — aka truck stops — means there should be food, drinks, restrooms, WiFi and even showers available while you wait for an EV to charge. Pilot recently announced its “New Horizons” plan that will invest $1 billion in upgrading Pilot travel centers with more premium amenities, including expanded seating and lounge areas. While the exact amount of time it will take to charge an EV using these new stations will vary on the EV and its current state of charge, most EVs can refill from a low state of charge to around 80 percent in 20-30 minutes on a fast charger. The new stations are future-proofed to deliver up to 350 kW, a charge rate that few EVs today can handle.