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GM recalling another 2.7 million vehicles in five separate campaigns

The recalls keep rolling in from General Motors, evidently keen to avoid repeating the mistakes of the ignition-switch debacle and clean house. This time they're all coming at once, with five separate recalls announced together covering approximately 2.7 million vehicles.
The largest of the five actions involves over 2.4 million units of the previous-generation Chevrolet Malibu and Malibu Maxx, Pontiac G6 and Saturn Aura in order to fix brake light wiring harness, which have been found to be susceptible to corrosion. The recall is separate from the 56k Aura sedans which GM recently recalled over faulty shift cables, not to mention the previous massive recall of 1.3 million vehicles - some of them the same models - but appears to have resulted from the National Highway Traffic Safety Administration investigation that started with the G6 almost a year ago.
The second-largest campaign involves the 2014 Chevy Malibu, specifically those fitted with GM's 2.5-liter engine and stop/start system, approximately 140,000 examples of which has been found to have problematic brakes. The issue does not appear to be connected to the recall of 8k Malibu and Buick LaCrosse sedans (also involving brake woes) which we reported upon last week. Four crashes have been reported in such models, but GM admits it's not yet clear if the problem was a contributing factor in the accidents.

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.

2017 GMC Acadia First Drive

We're in the midst of the Second Great CUV War, and the crossovers are winning by a lot. Compact sedans are being hauled around the side of idled factories and unceremoniously shot. FCA, whose be-sweatered CEO is either omnipotent or a troll of the highest order, is organizing a last stand around profit-dense SUVs and trucks on the off chance that gas prices don't rise ever again. It's the tall wagon's finest hour, and GMC is hoping the new Acadia will capture a share of the glory. The old Lambda-platform Acadia was introduced in 2007, leading the full-size, three-row crossover charge that spawned a quartet of semi-indistinct variants, including a Saturn. (Remember Saturn?) These four were truck-like in heft and capabilities, but lighter and better-mannered than their body-on-frame counterparts – and with an unusually stout 5,000-pound towing capacity. The Lambda siblings bombarded established beachheads on the sales territories occupied by minivans and truck-based SUVs. Last year, GMC moved nearly 100,000 Acadias in the US, the best year ever for the model. Now GMC shows up with a deflated Acadia for 2017, 7.2 inches shorter overall, 3.5 inches narrower, and with a 6.4-inch-shorter wheelbase. The company has even carved something like 700 pounds out of its previously portly unibody, mostly due to the size reduction but also through an increase in the percentage of high-strength steel and the use of lighter soundproofing materials. GM's C1XX platform was launched with the Cadillac XT5 earlier this year, and this GMC version is the second to appear. There's even an available four-banger, but more on that in a bit. What remains to be seen is whether the downsized Acadia represents a leaner, meaner fighter or if GMC is sending it into battle hamstrung. Outside, the new Acadia is stealthily innocuous. Gone is some of the lozenge-ness of the outgoing Acadia, but don't fret about it standing out from the crowd. The overall styling falls into lockstep with the Sierra and Canyon. The cut of the rear window, with an upsweep at the trailing edge, emulates the brand's mid-sized truck offering. A chrome mustache cuts across the front fascia below the grille, and there's more brightwork around the front side windows and at the crease below the scallop in the doors. The taillights are more contemporary than before, with an attractive elongated C element comprised of LEDs.