Vehicles Affected: Approximately 1.26 million model-year 2011-13 Ford F-150 pickup trucks equipped with six-speed automatic transmissions built at the Dearborn Assembly Plant in Michigan from April 28, 2010, to Oct. 28, 2013, and the Kansas City Assembly Plant in Missouri from May 18, 2010, to Nov. 18 2013
The Problem: An intermittent loss of the transmission output speed sensor signal to the powertrain control module could result in a temporary, unintended downshift into 1st gear, increasing the risk of a crash.
Ford said it is aware of five reports of accidents, including one report of "whiplash" potentially related to this condition.
The Fix: Dealers will update the powertrain control module software for free.
What Owners Should Do: Ford did not immediately announce an owner-notification schedule. Owners can call the automaker at 866-436-7332, the National Highway Traffic Safety Administration's vehicle-safety hotline at 888-327-4236 or visit its website to check their vehicle identification number and learn more.
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