Toyota Motor Corp. has recalled more than 8 million vehicles worldwide since last fall because of problems with gas pedals, floor mats and brakes.
The Japanese automaker paid a record $16.4 million fine for its slow response to an accelerator pedal recall and is facing hundreds of state and federal lawsuits.
Toyota said in a statement that it "sympathizes with the individuals and families involved in any accident involving our vehicles.
We are making an all-out effort to ensure our vehicles are safe and we remain committed to investigating reported incidents of unintended acceleration in our vehicles quickly."
The automaker said "many complaints in the NHTSA database, for any manufacturer, lack sufficient detail that could help identify the cause of an accident.
We will continue to work in close partnership with law enforcement agencies and federal regulators with jurisdiction over accident scenes whenever requested."