NHTSA does not think so.

NHTSA’s Comment

“Engineers at the National Highway Traffic Safety Administration are continuing to investigate the possible causes of sudden acceleration, along with the National Academy of Sciences and NASA,” said Olivia Alair, a spokeswoman for the U.S. Transportation Department, which includes NHTSA, in an e- mailed statement today. “We have drawn no conclusions and released no data. We will follow the facts and inform the public when our investigation comes to an end.”

http://www.businessweek.com/news/2010-07-14/toyota-cites-driver-errors-in-acceleration-cases.html