The Japanese automaker says the finding is the result of a U.S. government investigation into the possibility of unintentional acceleration in some of its vehicles.
In August, Toyota announced a recall of 3.8 million vehicles in the U.S., urging the owners of the recalled vehicles to remove their driver's side floor mat because of the risk they could jam the accelerator pedal.
Toyota says the National Highway Traffic Safety Administration has reviewed allegations of unintended acceleration in Toyota vehicles six times, clearing the automaker each time.
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