I wouldn't drive a Toyota if you handed it to me on a silver platter.
...That said, a handful of cases may have been due to oversize or improperly fitted floor mats in Toyota and Lexus vehicles. The company is now working through millions of vehicles to shorten and modify their accelerator pedals to alleviate the potential for such a problem.
That was the conclusion of the investigation into a notorious crash last August, in which a California Highway Patrol officer and three other [family] passengers were killed when their Lexus accelerated out of control, crashed, flipped over, and burned.
That case is the only one out of more than 3,000 complaints in which the NHTSA has concluded the vehicle was at fault.