By Vicki Needham - 12/21/10 04:10 PM EST
The first investigation and $16.375 million fine involved Toyota’s recall of nearly 5 million vehicles with accelerator pedals that can become entrapped by floor mats.
In 2009, NHTSA reviewed crash evidence and other data, and found that removing floor mats was insufficient and that there was a need to redesign the accelerator pedal. Toyota conducted the recalls.
The second investigation found that Toyota hadn't notified the NHTSA of a safety defect in several Toyota models that could result in the loss of steering control.
"Automakers are required to report any safety defects to NHTSA swiftly, and we expect them to do so," said NHTSA administrator David Strickland. "NHTSA acknowledges Toyota’s efforts to make improvements to its safety culture, and our agency will continue to hold all automakers accountable for defects to protect consumers' safety."