Driver error may have played a key role in many of the "unintended acceleration" incidents in Toyota cars, the US government's preliminary investigation has concluded.
Toyota faces a string of lawsuits following the recall of more than 10 million vehicles worldwide with a string of different faults affecting both acceleration and braking.
So far the US National Highway Traffic and Safety Administration investigation has only looked into the data recorders of cars involved in unintended acceleration.
But in 35 of the 58 cases under review the driver had not put on the brakes. In another nine incidents, the brakes were applied too late. And in one, the brake and accelerator pedals were both pressed at the same time.