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GM diesel pickups first to undergo extra EPA, CARB testing

The effects of Volkswagen's long-running diesel emissions evasion are starting to spill over to other automakers, but General Motors is taking things in stride. The 2.8-liter, four-cylinder Duramax in the 2016 Chevrolet Colorado and GMC Canyon is the first engine to get extra scrutiny by the Environmental Protection Agency and the California Air Resources Board, Automotive News reports. Rather than just the usual in-lab test, it's also being checked on the road. However, the extra evaluation shouldn't have any impact on when the trucks with his mill hit dealers later this fall. "We're in our final stages of the EPA certification, and our launch is on track," Chevy spokesperson Otie McKinley tells Autoblog. The four-cylinder diesel in the trucks makes 181 horsepower and 369 pound-feet of torque, and the automaker is touting low NOx production. In the announcement for the Colorado's specs, the company calls it "the cleanest diesel truck engine ever produced by General Motors." The tech includes exhaust gas recirculation to lower combustion temperatures and improve emissions. There's also a urea tank like on the bigger diesels for full-size trucks, and it gets refilled in time with oil changes. An indication on the instrument panel lets drivers know when that's needed, too. Even with the more demanding testing, the company doesn't seem too worried about the four-cylinder passing. "Part of our development process is on-road and off-road [laboratory] testing," Scott Yackley, Chevy Trucks assistant chief engineer, said to Automotive News. In the wake of the VW scandal, the EPA has pledged more rigorous testing. Before, on-road emissions evaluations were largely limited to heavy-duty vehicles, but the agency has decided to apply the checks more often to other models. There's also now greater cooperation with Canadian authorities.

GM recalls full-size truck, SUVs and vans over faulty shifter mechanism

Twelve different General Motors vehicles from the 2013 model year, up to 54,686 units in total, are being recalled over two potential issues with their steering columns. The models in question, all full-size trucks, SUVs or vans, are the: Cadillac Escalade, Escalade ESV, Escalade EXT, Chevrolet Avalanche, Express, Silverado, Suburban, Tahoe, and GMC Savana, Sierra, Yukon and Yukon XL.
The affected vehicles were built with a fractured parking lock cable or "a malformed steering column lock actuator gear in the lock module assembly." As a consequence, they could shift out of park without the brake pedal being applied or with the key removed or in the off position.
A bulletin from the National Highway Traffic Safety Administration indicates that the recall should begin on January 17. GM will notify owners, at which time they can take their vehicles to their dealers for repair free of charge. Have a look at the bulletin below for more information.

Chevy Volt, Nissan Leaf go nearly the same all-electric miles a year

Range anxiety? What range anxiety? The concept is a foreign one to those driving Chevrolet Volt extended-range plug-ins, and as a result, that vehicle's all-electric driving miles are actually pretty close to that of the all-electric Nissan Leaf. Such were the findings of a study conducted by the Idaho National Laboratory (INL), which tracked about 8,700 cars during a three-year period, including a bunch of Volts, Leafs and Smart ED electric vehicles. In short, even though the Volt's all-electric range of about 38 miles is less than half that of the Leaf's, the Volts' collective all-electric driving was just six percent lower than the Leaf's (the next-generation Volt will be even more electro-generous, with a 50-mile range). The logic makes sense considering typical US driving habits, in which a vast majority of people commute less than 35 miles a day. Additionally, Volt drivers obviously have no fear of running out of electricity, so they were far more likely to max out on that range than some Leaf drivers. Overall, the average Leaf is driven about 15 percent less than the national average of about 11,300 miles a year for all vehicles, while Volts are driven about eight percent more. Of all those Volt miles, about 81 percent were in all-electric mode. Additionally, Volt drivers recharged about 1.5 times a day, while Leaf drivers recharged about once a day, and about 85 percent of that charging was at home. As for non-home charging, about 20 percent of the vehicles accounted for 75 percent of the station use, so folks are definitely creatures of habit. Check out the INL's 22-page report here for more interesting details. Related Video: Featured Gallery 2016 Chevrolet Volt: First Drive View 24 Photos Related Gallery 2016 Nissan Leaf View 30 Photos News Source: Idaho National Laboratory via Hybrid Cars Green Chevrolet Nissan Electric Hybrid extended-range plug-in