Ford F-150 downshifting problems have caused a recall of nearly 1.5 million model year 2011-2013 trucks equipped with 6-speed automatic transmissions.
The automaker says five crashes and one whiplash injury have been blamed on trucks suddenly downshifting into first gear without warning. A loss of signal from the transmission output speed sensor to the powertrain control module is allegedly the source of the downshifting problem.
About 1.3 million of the recalled F-150 trucks are in the U.S. and another 221,000 are in Canada. All the trucks were built in Kansas City and Michigan, and Ford believes all can be repaired by updating the powertrain control module software.
Ford F-150s have experienced downshifting problems in the past when in April 2016 model year 2011-2012 trucks were included in a recall of 202,000 vehicles.
In addition to the F-150, the 2016 recall also saw the 2012 Ford Expedition, Ford Mustang and Lincoln Navigator recalled for sudden downshifting into first gear. The 2016 recall also blamed the problem on transmission output speed sensors.
It's possible repairs made in 2016 didn't completely fix the downshifting problems because the National Highway Traffic Safety Administration (NHTSA) opened an investigation into the matter in December 2017.
Federal safety regulators said at the time drivers continued to complain of downshifting problems, with some of those vehicles allegedly repaired during the 2016 recall. Other drivers reported their transmissions suddenly shifted into first gear but their vehicles weren't included in the recall.
NHTSA hasn't released details of this latest Ford F-150 recall and Ford hasn't specifically said it is related to the 2017 downshifting investigation.
CarComplaints.com will update this page when additional details are made public.
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