This new recall is separate from an on-going recall of 4.2 million Toyota and Lexus vehicles to correct a problem in which the pedals could become stuck under a loose floormat.
This new recall is to correct a situation in which the gas pedal could stick without the presence of a floor mat.
"Our investigation indicates that there is a possibility that certain accelerator pedal mechanisms may, in rare instances, mechanically stick in a partially depressed position or return slowly to the idle position," Toyota USA group vice president Irv Miller said in a statement.
The situation is rare, according to Toyota, but can occur when accelerator pedal mechanisms become worn. The problem will usually develop gradually, Toyota spokesman Brian Lyons said. The pedal may become harder to press and may become slower to return when released. In the worst cases, it may become stuck in a partially depressed position.