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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 issues stop-delivery for 2015 Chevrolet Colorado and GMC Canyon

General Motors is issuing a stop-delivery order for its latest midsize pickups, the 2015 Chevrolet Colorado and GMC Canyon, because the driver's side airbag might not be wired correctly. The total number of vehicles affected is still being determined.
According to the statement from GM, the problem, "affects the vehicles' two-stage airbag system by reversing the deployment sequence and disrupting the deployment timing of the driver airbag stages." That means in an accident the bag may not work correctly.
Most of the affected trucks are still on the assembly line, in transit or unsold at dealers, says GM. Until a way to repair the problem is found, customer deliveries are stopped. However, "a small number" of them are in the possession of buyers. GM is contacting these people by phone and by FedEx letter to have the vehicles returned to dealers. In the meantime, they'll be given a loaner to drive.

2023 GMC Yukon Denali Ultimate comes with more style, most everything else

First introduced on the Sierra line, the even more luxurious Denali Ultimate trim is coming to the 2023 GMC Yukon. It includes nearly every available feature for the regular Denali as standard, plus some unique design features. The Denali Ultimate is distinguished by its dark chrome grille and badging, features that cannot be added to any other Yukon model. It also gets the largest wheels yet for the Yukon: 22-inchers with painted, machined and polished sections. The interior is more impressive. Most of the surfaces are covered in leather, real wood and aluminum trim. The seat backs and the wood trim have topographical maps of Mount Denali. Metal badging is even added to the seat backs with the special trim level's name. This content is hosted by a third party. To view it, please update your privacy preferences. Manage Settings. As for features, the Denali Ultimate comes with basically everything that's standard as well as what's usually optional on the regular Denali including magnetic shocks, huge screens, an 18-speaker sound system and massaging seats, among others. So this is one of the rare times where it actually is easier to list what's either an additional feature or just a preference. Naturally you get a choice of colors, and the trim level can be added to either the shorter Yukon or the longer Yukon XL. The standard engine is the gas-powered 6.2-liter V8 with 420 horsepower and 460 pound-feet of torque. The 3.0-liter turbodiesel straight-six is an option with 277 horsepower and the same amount of torque. Both are coupled to a 10-speed automatic and four-wheel drive. Super Cruise with towing and automatic lane change capabilities is another option, a rear-seat entertainment system and a towing package. And that's it. Pricing hasn't been announced, but it's pretty clear this will be the most expensive Yukon trim. The final numbers will be coming this June. Deliveries begin this fall.