According to the complaints, Ford drivers reported that their F-150s unexpectedly downshifted to lower gears while traveling at highway speeds, followed by rapid deceleration, wit

Regulators received over 100 consumer complaints about transmission shifting to a lower gear without warning. The investigation affects some Ford F-150s.

The National Highway Traffic Safety Administration is investigating nearly 1.3 million Ford F-150 pickup trucks in the United States over reports of an unexpected gear downshift accompanied by a temporary rear wheel lock-up.