Top executives at Toyota have promised a shake-up of its quality procedures as the US government said it would hold the carmaker’s chief to his pledge to address safety issues.
In the wake of massive recalls of Toyota vehicles
over unintended acceleration and braking issues, member of the US Congress are holding two days of hearings to question Toyota bosses.
The politicians also called for more research into the problems.
At the same time, Toyota has revealed that it faces a criminal investigation in the US into the handling of its massive safety recalls.
A federal grand jury in New York has asked for documents relating to problems, including sticky accelerators.
A similar request has come from the financial regulator, the US Securities and Exchange Commission.
Unintended acceleration problems have been linked to at least five deaths in the US.