Toyota is investigating claims from US car owners that cars that have been recalled and remedied are still suffering incidents of unintended acceleration.
A statement from the manufacturer said: "Although these reports involve a tiny fraction of the more than one million vehicles dealers have repaired to date, Toyota takes them very seriously."
Toyota's investigations are now being evaluated by US National Highway Traffic Safety Administration, but the company said that it found no evidence of a failure of the throttle control system, brake override feature or in the actual work carried out as part of the massive recall campaign.
A statement from Toyota concluded: "Toyota is confident that the rigorously tested accelerator pedal remedies and the bake override feature are effective and firmly believes that, with these remedies, its vehicles are among the safest on the road."
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