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Pedal errors have been widely reported as a leading cause of unintended acceleration (UA) incidents for several decades. Many governmental and scientific studies have attempted to characterize the rate of pedal errors leading to UA incidents using data from the North Carolina Crash Database. These data, however, are limited for various reasons, including the absence of an in-depth investigation of causal factors contributing to the accident. To further examine the rate of UA incidents related to pedal error, we utilized the National Motor Vehicle Crash Causation Survey (NMVCCS), a nationally representative sample of 5,471 crashes that occurred between 2005 and 2007. Using a targeted keyword search, we identified 48 potential pedal errors (30 driver-admitted), providing a national estimate of 17,919 pedal errors. We then investigated accident characteristics across these specific cases, including demographics of the drivers, vehicle characteristics, and pre-crash critical events.