NHTSA is investigating 2015-2017 Ford F-150s for sudden, unexpected transmission downshifts.
The National Highway Traffic Safety Administration has started an investigation into certain F-150 pickups that owners say have transmission issues.
5hon MSN
NHTSA investigating 1.3 million Ford F-150s with faulty transmissions that may lock the rear axle
A signal loss to a sensor can cause the transmission to downshift several gears, potentially causing the rear wheels to lock up.
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