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GM recalls 3.8 million vehicles in North America due to braking issue

WASHINGTON — General Motors Co said Wednesday it was recalling 3.46 million U.S. pickup trucks and SUVs to address a vacuum pump issue that could make braking more difficult and that has been linked to 113 accidents and 13 injuries. The recall covers 2014-2018 model year vehicles, including some Cadillac Escalade, Chevrolet Silverado, Chevrolet Tahoe, GMC Sierra, Chevrolet Suburban and GMC Yukon vehicles. In late June, GM recalled 310,000 vehicles in Canada for the same issue. GM did not immediately explain why the Canadian recall occurred more than two months before it called back the vehicles in the United States. The recall was triggered because the amount of vacuum created by the vacuum pump may decrease over time, GM told the National Highway Traffic Safety Administration (NHTSA) in documents posted on Wednesday. The NHTSA opened a preliminary investigation into the issue last November, and said it had reports of nine related crashes and two injuries. It provided GM in July with additional field reports that prompted the automaker to open an investigation. GM said it could affect braking in "rare circumstances." The NHTSA said in a statement the "vehicles may experience brake boost failure, which would require increased brake pedal effort, leading to a hard brake pedal feel, and potentially increased stopping distance." GM said dealers will reprogram the electronic brake control module to improve how the system utilizes the hydraulic brake boost assist function when vacuum assist is depleted. GM said the vacuum assist pump, which is lubricated with engine oil that flows into the pump through a filter screen, can in some cases lose effectiveness over time, as debris such as oil sludge can accumulate on the filter screen. GM told NHTSA that prior model years used a different brake assist system design, and vehicles manufactured after 2018 were not equipped with the affected pump design. Separately, GM said on Wednesday it is recalling 270,000 additional U.S. vehicles in three smaller recalls, including 177,000 2018 Chevrolet Malibu cars with 1.5L turbo engines because an error in the engine control module software may result in the fuel injectors being disabled.

GM to idle Indiana truck plant for two weeks over chip shortage

WASHINGTON —General Motors said Friday it will idle for two weeks in April an assembly plant in Indiana that builds pickup trucks, over ongoing semiconductor chip shortages. The Detroit automaker said it will halt production at its Fort Wayne assembly plant, which builds the Chevrolet Silverado 1500 and GMC Sierra 1500, for two weeks starting April 4. "There is still uncertainty and unpredictability in the semiconductor supply base, and we are actively working with our suppliers to mitigate potential issues moving forward," GM said Friday. The automaker said this is its first semiconductor-related full-size truck production downtime since August. GM noted that overall it has "seen better consistency in semiconductor supply through the first quarter compared to last year as a whole. This has translated into improvement in our production and deliveries during the first three months of the year." GM Chief Executive Officer Mary Barra met with some lawmakers on Capitol Hill this week, including Republican Senator Todd Young of Indiana. GM is backing a bill in Congress to provide $52 billion in government subsidies to boost U.S. semiconductor manufacturing. GM said that legislation could help "alleviate the ongoing shortage that continues to impact U.S. automotive manufacturing." (Reporting by David Shepardson; editing by Jonathan Oatis) Related video:

One-off 2022 GMC Jimmy shows the convertible SUV that could have been

GMC is seemingly content to let the sixth-generation Ford Bronco take on the Jeep Wrangler on its own. The company left this segment of the market decades ago, but an Arkansas-based builder named Flat Out Autos is bringing the Jimmy back for the 2022 SEMA show. The modern-day Jimmy largely mirrors the Sierra 1500 that it's based on from the tip of the front bumper to the b-pillars. Beyond that, Flat Out Autos added redesigned quarter panels, removed the partition between the cargo box and the cabin, and installed rear seats. It also developed a removable, body-colored hardtop that brings the truck's silhouette in line with the second-generation Jimmy's. Out back, the versatile MultiPro tailgate remains, and the Jimmy keeps the Sierra's rear bumper with a step integrated into each corner. All told, the conversion looks surprisingly good. We bet GMC could sell a lot of these if it decided to jump back into the segment. The interior is mostly Sierra fare, though the front seats tilt forward and carpet lines the cargo box and the inner part of the tailgate. Flat Out Autos hasn't released technical details, so there's no word on what the Jimmy is powered by. More details will presumably be announced in the weeks leading up to the 2022 SEMA show, which opens on November 1, and Flat Out Autos plans to build 25 units.