Software fix planned after investigation into transmission problem.Ford is recalling about 1.4 million F-150 pickup trucks in the United States after federal regulators linked a transmission issue to unexpected downshifts.The National Highway Traffic Safety Administration (NHTSA) said the recall affects 2015–2017 models equipped with the 6R80 transmission. The agency began investigating the problem in March 2025 after receiving complaints that trucks could suddenly shift into a lower gear without warning.According to Ford, the issue stems from heat and vibration degrading electrical connections in the transmission’s range sensor. Faulty signals from that sensor can trigger unintended downshifts, increasing the risk of a crash.NHTSA said it is aware of one accident and two potentially related injuries tied to the problem.As a remedy, Ford dealers will update the vehicles’ powertrain control module software to address the issue.