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NHTSA probes 2010 Chevy Tahoe for side airbag issue

After a person was killed in a rollover accident in a 2010 Chevrolet Tahoe in Texas in 2011, the National Highway Traffic Safety Administration is considering whether to conduct a deeper investigation into a potential problem with the model's side airbags. According to the petition filed with the government agency, the SUV's rollover side curtain airbag deployed in the accident, but the design allegedly still allowed some of the occupants in the second- and third-row seats to be ejected from the vehicle. One of them died in the crash. Based on NHTSA's preliminary review, this is the only report of this type of incident happening in a 2007-2015 Tahoe or GMC Yukon. "GM investigated the complaint that is the basis of the petition and found no defect trend," company spokesperson Alan Adler said to The Detroit News, and said the automaker will cooperate with the feds. Still, "a defect petition has been opened to evaluate the issue and make a grant or deny decision," according to NHTSA. Depending on the agency's findings, this could lead to a full investigation and possible recall affecting an estimated 58,000 vehicles. INVESTIGATION Subject : Rollover Side Curtain Air Bags Date Investigation Opened: JUN 11, 2015 Date Investigation Closed: Open NHTSA Action Number: DP15004 Component(s): AIR BAGS All Products Associated with this Investigation Vehicle MakeModelModel Year(s) CHEVROLET TAHOE 2010 CHEVROLET TAHOE HYBRID 2010 Details Manufacturer: General Motors LLC SUMMARY: The Office of Defects Investigation (ODI) has received a petition requesting an investigation of alleged defects that can cause occupant ejections during rollover crashes in certain General Motors vehicles. The petition alleges the defects allow second and third row occupants to be ejected despite the deployment of rollover side curtain air bags. The petition cites a 2011 Texas crash involving a model year 2010 Chevrolet Tahoe, which allegedly resulted in multiple occupants to be ejected. One of the ejected occupants was fatally injured. ODI's preliminary review of its consumer complaint data found no similar reports of occupant ejections on 2007-2015 Chevrolet Tahoe and GMC Yukon vehicles. ODI also reviewed Early Warning Reporting data submitted by General Motors. A defect petition has been opened to evaluate the issue and make a grant or deny decision.

2014 Chevrolet Malibu gets more torque, more room and inspiration from the Impala

The 2014 Chevrolet Malibu, having stared at the Impala across the showroom floor for a year, gets nips and tucks all over inspired by its larger brother. The 2.5-liter four-cylinder in the base car will get a stop-start system and 23 city miles per gallon, 35 highway, each number representing a one-mpg improvement over the 2013 car. Output is 196 horsepower and 186 pound-feet of torque.
Opt for the 2.0-liter turbo and, while power holds steady at 259 hp, torque goes up by 14 percent to a striking 295 lb-ft (a figure Chevy calls best in the class). The final details include newly programmed transmission shift points and faster shifts, for better engaging and enjoying the added power.
Looks-wise, the grille's been reshaped to be more in line with the new Chevrolet look, a narrower upper grille hovering over a larger lower grille.

GM exploring ways to raise half-ton Duramax diesel tow rating

Lots of truck owners cheered when GM announced fuel economy numbers for the 2020 Chevrolet Silverado with the 3.0-liter Duramax diesel inline-six. Even after Ram let loose its EPA mileage ratings for the 2020 Ram 1500 EcoDiesel, the Chevy oil-burner still took the trophy. The victory was years in the making, GM engineers spending an entire four-year development cycle refining the LM2 Duramax to increase mileage. The tradeoff, as well all know by now, is towing; the Duramax in half-ton duty pulls a maximum 9,300 pounds in the Silverado. Rivals across town can do more, the Ford F-150 PowerStroke rated at 11,500, the Ram 1500 EcoDiesel game to pull 12,560. GM engineer John Barta told Muscle Cars & Trucks that more hauling chops could be on the way, explaining, "We’re actually looking at upgrading some of the materials around (the engine bay) to see if we can maybe raise our tow rating." Engine bay materials are at issue due to thermal complexities underhood. John Barta, GM's assistant chief engineer of diesel engine controls, said the Duramax's inline-six configuration allowed engineers to get emissions hardware like the combined selective catalytic reduction, diesel oxidation catalysts, and diesel particulate filter unit closer to the engine, where it heats up quicker, getting emissions down quicker. But that filter puts another heat source in those confines, enforcing a cap on the tow rating to keep the engine and other systems from overheating. "If you look under the hood," he said, "youÂ’ll see a significant amount of silver ‘moon tapeÂ’ around to make sure things arenÂ’t getting overheatedÂ… if we were to go up in higher towing, which we can, we start impacting the possibility of deteriorating some of the components.” There isn't much space for more grille, so swapping for a better grade of "moon tape" or a different kind of material could reduce engine bay heat, extracting a higher tow rating in the process.  It's important to note a point Barta's been making for months about the Duramax figures, though. "Even though itÂ’s nice to brag about big numbers, in reality, light duty customers are not towing that large with their trucks," and, "We do know that (95 percent) of our light duty customers donÂ’t tow over 9,000 pounds." On our First Drive of the 2020 Silverado diesel we called out the tow rating, but emphasized that the Chevy and GMC have more important challenges to overcome.