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2021 Chevy Silverado, GMC Sierra fuel economy to go down due to global chip shortage

Production of the 2021 Chevy Silverado and 2021 GMC Sierra is continuing, but the global semiconductor chip shortage is resulting in a mid-year change. Or rather, an omission.  Basically, the availability of cylinder deactivation for the 5.3-liter V8 will be significantly reduced, resulting in a reduction of 1 mpg combined for affected models. This applies whether that engine has the six- or eight-speed automatic, as well as to both the regular Active Fuel Management and the more advanced Dynamic Fuel Management cylinder deactivation systems. DFM does remain with the pairing of 5.3-liter V8 and 10-speed automatic that comes standard on the LT Trail Boss and High Country. "Due to the micro controller shortage, the components that control AFM/DFM in the engine control module (ECM) have been removed," GM spokesperson Michelle Malcho told Autoblog. She also indicated that the engines will still have the AFM/DFM hardware in place, but that GM will not allow activation of the systems in the future with an ECM change.  Malcho also confirmed to Autoblog that the Silverado and Sierra's other engines will continue to have AFM and DFM, including the 2.7-liter turbo inline-four, 4.3-liter V6 and 6.2-liter V8. In an earlier statement to Reuters, she declined to say the volume of vehicles affected. "By taking this measure, we are better able to meet the strong customer and dealer demand for our full-size trucks as the industry continues to rebound and strengthen," Malcho wrote Reuters in an email. The change runs through the 2021 model year, she said. Malcho told Reuters it would not have a major impact on the Detroit automaker's U.S. corporate average fuel economy (CAFE) numbers. "We routinely monitor our fleet for compliance in the U.S. and Canada, and we balance our portfolio in a way that enables us to manage unforeseeable circumstances like this without compromising our overall (greenhouse gas) and fuel economy compliance," she said. GM's fleetwide fuel economy in the 2018 model year was 22.5 miles per gallon and was projected to rise to 22.8 mpg for 2019, according to a report by the Environmental Protection Agency. To meet federal CAFE requirements, automakers like GM often use credits from either earlier years where they faced less stringent rules and performed better than the requirements or buy credits from other automakers. GM said last month the chip shortage could shave up to $2 billion from this year's earnings.

GM Recalling 370,000 Trucks For Fire Risk

DETROIT (AP) - General Motors is recalling 370,000 Chevrolet Silverado and GMC Sierra pickups from the 2014 model year to fix software that could cause the exhaust components to overheat and start a fire. The recall includes 303,000 trucks in the U.S. and 67,000 in Canada and Mexico. All of the trucks involved have 4.3-liter or 5.3-liter engines. GM said eight fires have been reported, but no injuries. One garage was damaged, the company said. All of the incidents occurred in cold weather. The company is asking customers not to leave their trucks idling unattended. GM dealers will reprogram the software for free. The company will inform owners starting Jan. 16. The major recall announcement, which came on Saturday, marred the Silverado's winning of the 2014 North American Truck of the Year Award at the Detroit Auto Show on Monday. Related Gallery Our Favorite Cars For Winter View 11 Photos Recalls Chevrolet sierra

GM's Reuss predicts 2016 Chevy Camaro will outperform Ford Mustang in every way

We aren't going to be seeing the next-generation Chevrolet Camaro until next month. But even though we know when we're going to see the new muscle car, it's totally unclear whether Chevy will dole out technical details. That means we can't answer the latest version of the age-old question: Camaro or Ford Mustang? Not surprisingly, General Motors North America President Mark Reuss has already stated his position, saying he was "very confident" that the sixth-generation Camaro will be faster, more agile and more efficient than the Ford. Reuss made his comments after saying he drove the new Camaro back-to-back with the Mustang the week prior. Reuss' statement came in a conversation with Fox News about the 2016 Camaro where he elaborated on the car's weight shedding and how it fit into GM's strategy on other new models. "There are some really cool things in the Camaro, that are quite different than the Malibu, [and] CT6," Reuss told Fox. As we reported previously, the Camaro will shed some 200 pounds by switching to aluminum and other lightweight composites for some of its components. With May 16 just over a month away, here's hoping Reuss decides to loose some other details on the next Camaro ahead of its debut. Related Video: