The carmaker hoped findings from two federal studies would put to rest speculation about its electronics system as a source for unintended acceleration. But the results may not prove enough to give Toyota a leg up in its ongoing legal battles.
In an affirmation of Toyota's claims, an exhaustive 10-month federal investigation has found no evidence of an electronic source for sudden unintended acceleration in companpy's vehicles. Indeed, human error was cited as the cause in many cases.
The beleaguered Japanese carmaker is sending notices to Sienna owners to warn them of brake-light switch brackets that are susceptible to damage and could lead to eventual loss of braking effectiveness. No accidents relating to the defect have been reported.