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How GM engineers are using diaper 'snow' to keep you warm

Testing how snow affects General Motors' vehicles isn't really a problem right now for the company's engineers, but in the dog days of summer the process isn't exactly easy. The only real option is for them to book time at the automaker's climatic wind tunnel. However, a flash of brilliance from an engineer allows snow to be simulated regardless of the temperature outside, and the discovery is all because of his daughter's wet diaper. The realization came to GM Thermal Systems engineer Nicholas Jahn while he was swimming with his daughter and noticed how her diaper ballooned in size in the water. He found out the substance that makes this possible is called sodium polyacrylate. When the material gets wet it grows and forms fluffy flakes that are a close imitation of snow. Best of all, the stuff can be prepared easily any time of the year, and it's reusable. The engineering team uses the material to test the effectiveness of the heating systems of GM's vehicles. They spread the sodium polyacrylate over the inlets at the base of the windshield to obstruct the airflow and then crank the heater. After some time, they can see how much is being sucked into the system and design more efficient systems in the future. See how the process works in the video above and read about the diaper discovery in GM's press release below. Diapers Change Chevy Cruze Winter Warm-up Time GM validation engineer uses diaper material "snow" to reduce frigid drives 2015-01-06 DETROIT – An item commonly found on an infant's changing table is helping General Motors' engineers simulate snow year round, ensuring heating systems in cars like the 2015 Chevrolet Cruze can quickly and efficiently warm its interior. Packed snow can prevent air from entering the inlet panel at the bottom of the windshield, obstructing the flow of air into the heating system and reducing the amount of air it can push out. This can lead to less efficient warming of the car's interior and windshield defrosting. "The last thing anyone wants to do when it's freezing cold out is scrape their windshield," said Nicholas Jahn, GM Vehicle Thermal Systems engineer. "The testing we perform on the Chevrolet Cruze with the diaper material allows us to maximize the car's heating capabilities." Ironically, Jahn stumbled upon his diaper-based testing method in the middle of summer. During a swim with his daughter, he noticed her diaper multiplied in size when it came into contact with water.

NHTSA investigates 1.7 million GM SUVs for windshield wiper failures

WASHINGTON - The U.S. National Highway Traffic Safety Administration (NHTSA) said on Tuesday it is investigating whether General Motors should recall an additional 1.7 million sport utility vehicles due to an issue with windshield wiper failures. GM in August 2016 recalled 367,800 2013 GMC Terrain and Chevrolet Equinox SUVs in the United States to address the problem. But after receiving 249 complaints about similar problems, the federal agency said it is probing whether the recall should be expanded to include an additional 1.7 million vehicles from the 2010-2016 model years. The automaker said it is cooperating with the NHTSA review. GM said it recalled the 2013 GMC Terrain and Chevrolet Equinox SUVs "because warranty data showed a higher-than-expected failure rate," adding it has continued to monitor field data on other model years of those vehicles. GM noted that no crashes or injuries related to the issue have been reported. The Detroit-based automaker said the recalls were prompted after a GM Canada brand quality manager reported a potential safety issue relating to reports of windshield wiper failures in Canada through GM's "Speak Up For Safety," program in late 2015. The data showed significantly higher field incidents in parts of Canada, which prompted a June 2016 recall there. Over the next two months, a higher number of U.S. reports prompted a U.S. recall, the company added. In the 2016 recall, GM said the front-wiper module would be replaced with a module that has a water deflector and, if needed, dealers would fill the water management hole and drill a new small hole in a different location.(Reporting by David Shepardson, editing by G Crosse)Related Video: Government/Legal Recalls Chevrolet GM GMC SUV

2016 Chevrolet Equinox gets styling tweaks, not much else

The current Chevy Equinox debuted over five years ago, in late 2009. Since then, the midsize crossover segment has become increasingly important, with brand-new entries meeting substantially overhauled versions of existing nameplates. But the Equinox carried on, largely unchanged. And while Chevy is using its Chicago Auto Show stage to debut the freshened, 2016 Equinox, it appears there isn't a whole lot to talk about. Take a look at the updated Equinox's exterior and you're pretty much going to see all that's new for 2016. Sure, the Chevy still boasts a handsome, inoffensive design, and it's now upgraded with things like LED running lamps on top-level trims, as well as new 17- and 18-inch wheel designs, projector beam headlamps, and revised taillamp styling. Moving inside, Chevy has added a standard seven-inch color touchscreen to all models, which includes a backup camera. New-to-Equinox safety features like side cross traffic alert and side blind zone alert are also available for 2016. And really, that's about it. Powertrain options carry over from last year. On the base end, there's a 2.4-liter inline-four that's good for up to 32 miles per gallon on the highway (with front-wheel drive). Buyers can also opt for a 301-horsepower, 3.6-liter V6 that allows the Equinox to tow up to 3,500 pounds. Will this be enough to keep the Equinox fresh in its highly competitive class? In 2014, the Equinox did outsell lower-volume competitors like the Mazda CX-5 and Subaru Forester, but was bested by fresher offerings like the Ford Escape, Honda CR-V, and Toyota RAV4. Have a look at all there is to know about the 2016 Equinox in the press blast below. We'll have live images and more impressions direct from the Chicago show floor, soon. Fresh Face: Chevrolet Introduces Restyled 2016 Equinox Premium cues, new safety features enhance Chevy's record-selling compact SUV CHICAGO – Chevrolet today introduced the 2016 Equinox – a contemporized version of the popular compact SUV. Updates include new styling with premium accents, new wheel designs and new available safety features, as well as a larger color touchscreen radio and a standard rear-vision camera for entry-level models.