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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.

400,000 Chevy, GMC pickups recalled: Side airbags can explode

DETROIT — General Motors is recalling more than 400,000 pickup trucks in the U.S. because the side airbags can explode without warning and spew parts into the cabin. The recall covers certain 2015 and 2016 Chevrolet Silverado and GMC Sierra 1500, 2500, and 3500 trucks. Documents posted Friday by U.S. safety regulators say the airbag inflator can rupture or the end cap can fly off on both sides of the trucks. Documents say three inflators ruptured in 2015 Silverados last month, one in Florida and two in Texas. All three trucks were unoccupied at the time, and GM says it has no reports of injuries. Dealers will replace both side airbag modules. The company says it has a limited number of replacement parts available. Owners will be notified starting Aug. 16 and they'll get a second letter when parts are widely available. About 9,000 of the trucks were recalled last year for the same problem. The company says a manufacturing defect allowed moisture into the inflator while it was being manufactured, causing corrosion. The inflators were made in Mexico by Joyson Safety Systems, the company that took over Takata. Back in April, Silverado and Sierra were among nearly 750,000 GM vehicles in a National Highway Traffic Safety Administration (NHTSA) investigation into non-deploying driver-side airbags. That investigation is ongoing. Takata is responsible for the largest recalls in automotive history, covering about 100 million inflators among 19 major automakers worldwide, including about 67 million inflators in the United States. Nineteen deaths in the U.S. have been attributed to Takata inflators. Only about 50 million of the 67 million recalled inflators in the U.S. have been repaired. This latest recall is a good reminder to go to NHTSA's recalls website and enter your car's VIN. Millions of recalled vehicles still pose a danger to their owners. Yours could be one of them.   Recalls Chevrolet GM GMC airbag Takata airbag recall

GM Design shows another early Hummer EV sketch

Like a new mother who's still so excited about her one-year-old baby that she can't stop showing ultrasound photos, General Motors is so excited about its biggest new baby, the battery-electric GMC Hummer, that it can't stop showing off development design sketches. The off-road monster with the 200-kWh Ultium battery pack debuted online on October 21 last year. The next day, the GM Design Instagram page posted some of the Hummer's early "theme sketches" leading to the production version. These had a conceptual flair to them, but were rather restrained. A month later, GM uncovered a series of development renderings showing off a much wilder truck bursting with more angles than a geometry text book. The archives have opened up again with a new "ideation sketch," this one between the first believable sketches and the second truck that Master Chief and Doomguy share on their days off.  All three sets of drawings show similar three-box proportions, it's the details that got a ton of love. On this newest sketch, the fenders flare a touch more than on the production truck, but the wheel wells are cut with the kind of clearance found on a Baja 1000 Trophy Truck. Out back, save for the tow hooks, the rear end is totally different than production. The sketch puts illuminated Hummer script across a narrow tailgate flanked by small square, taillights housing six individual elements. Beneath that, a bumper-less rear end puts nothing more than a sloped bash pate between the truck and the rocks it's just scrambled over. To our eyes, this is the best blend of production-ready comfort from the first sketches and zoot suit angles from the second that we've seen so far.  First deliveries of the GMC Hummer EV Edition 1 are expected before the year is out. When we get a chance to absorb the truck in its native habitats, we'll know whether there's cause for disappointment at what could have been. If so, with all this hunger among the monied for something different, we feel like restomodders have been given the perfect head starts on custom rebodied Hummers that would make things right. Related video: This content is hosted by a third party. To view it, please update your privacy preferences. Manage Settings.