Ford is recalling up to 1.39 million F-150 pickup trucks in the United States after regulators identified a transmission-related issue that could lead to sudden and unexpected downshifting, increasing the risk of a crash. The move follows an investigation by the National Highway Traffic Safety Administration (NHTSA) into driver complaints involving one of America’s most widely used vehicles.
The recall affects certain 2015–2017 Ford F-150 models equipped with the 6R80 six-speed automatic transmission. According to the NHTSA, the issue stems from a potential loss of signal between the transmission range sensor and the vehicle’s powertrain control module, which may cause the transmission to abruptly shift into second gear while driving.
Such a sudden downshift can result in a rapid reduction in vehicle speed. In certain driving conditions, particularly at higher speeds, this may cause the rear wheels to momentarily slide, raising concerns about loss of control.
Inside the NHTSA Investigation and Root Cause
The safety regulator first opened a preliminary evaluation into the issue in March last year after receiving multiple complaints from drivers of affected F-150 trucks. As reports continued to grow, the investigation was expanded earlier this year, focusing on vehicles fitted with the 6R80 transmission.
According to findings shared by regulators, the problem is linked to electrical connections within the transmission range sensor system. Over time, heat and vibration can degrade these connections, leading to intermittent or incorrect signals being sent to the powertrain control module.
When the module receives faulty data about gear position, it may incorrectly command the transmission to downshift into second gear, even when the vehicle is traveling at higher speeds. The unintended shift is typically brief, but the sudden change in wheel speed can be enough to disrupt vehicle stability.
Ford acknowledged the issue and said it is aware of at least one accident and two injuries that could be linked to the defect. The company has also recorded 444 warranty claims and more than 100 customer service reports potentially related to the problem as of early April.
Additional technical details and recall documentation are available through the NHTSA official website, which outlines the safety risk and investigation timeline.
Scope of the Recall and What Owners Should Know
The recall covers F-150 trucks manufactured between March 12, 2014, and August 18, 2017. This period includes some of the highest-selling years for the model, contributing to the large scale of the recall.
The Ford F-150 has remained the best-selling vehicle in the United States for decades, making any widespread safety issue particularly significant for both consumers and the broader auto market.
To address the defect, Ford dealers will update the powertrain control module software in affected vehicles at no cost. The update is intended to improve how the system processes signals from the transmission range sensor and prevent unintended downshifts.
Vehicle owners will receive official recall notices by mail with instructions on scheduling a service appointment at authorized Ford or Lincoln dealerships. The repair itself is expected to be relatively quick, as it primarily involves a software calibration update rather than replacing major hardware components.
For drivers, the issue may not always present consistent warning signs before occurring. Some may experience hesitation or irregular shifting behavior, while others may encounter a sudden downshift without prior indication. Because of this unpredictability, safety regulators are urging affected owners to complete the recall service as soon as possible.
The recall also highlights the increasing role of electronic systems in modern vehicles. While software-driven controls have improved performance and efficiency, they have also introduced new points of failure, particularly when sensors and electrical connections degrade over time.
For Ford, managing a recall of this scale involves both operational execution and maintaining customer confidence in one of its flagship products. The company has emphasized that the issue can be resolved through software updates, which could help streamline repairs across its dealer network.
Industry analysts will be watching how quickly the recall is completed and whether additional models or transmission systems come under scrutiny. For now, the focus remains on ensuring affected F-150 owners are informed and able to address the issue without delay.
With nearly 1.4 million trucks involved, the recall stands out as one of the largest automotive safety actions this year, underscoring how even well-established vehicle platforms can face technical challenges over time.
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