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unintended acceleration

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Unintended acceleration, or Sudden Unintended Acceleration (SUA) as it is more frequently called, is the unintended or uncontrolled acceleration of a vehicle.  A U.S. National Highway Traffic Safety Administration report (NHTSA) defined SUA as "unintended, unexpected, high-power accelerations from a stationary position or a very low initial speed accompanied by an apparent loss of braking effectiveness."

According to Wikipedia.org, “Possible factors contributing to SUA are:

  • Pedal misapplication, i.e. pressing the accelerator instead of the brake
  • Unresponsive (entrapped) pedals Electronic throttle control or cruise control failure
  • Stuck throttle (unrelated to pedal position)

In 2009-2010, several Toyota vehicles were recalled and production on certain models was suspended due to a rash of SUA claims. In the mid-1980s, Audi issued a series of recalls of its Audi 5000 models due to reports of SUA related problems.

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