Electronic flaws are not to blame for reports of sudden acceleration in some Toyota vehicles, according to a 10-month government study released Tuesday.
The investigation did confirm mechanical defects with some Toyota vehicles. Those defects included: sticking accelerators, gas pedals that can become trapped in floormats, and other safety issues.
"We enlisted the best and brightest engineers to study Toyota's electronics systems and the verdict is in. There is no electronic-based cause for unintended acceleration in Toyotas," Transportation Secretary Ray LaHood said in a statement.
Since 2009, Toyota has recalled more than 12 million vehicles world-wide due to these issues. These recalls have challenged the world's No. 1 automaker to protect its status of great reliability and safety.
Toyota paid the U.S. government more than $48 million in fines for its handling of the recalls, and have announced that these recalls have addressed these specific concerns.
In addition to the recalls, Toyota began installing brake override systems on new vehicles. The systems automatically cut the throttle when the brake and gas pedals are applied at the same time.
The company also created engineering teams to examine vehicles that are the subject of consumer complaints and appointed a chief quality officer for North America amid complaints its U.S. division did not play a large enough role in making safety decisions.
The National Highway Traffic Safety Administration is considering new regulations to improve safety.