As congressional investigators dig further into potential electronic problems in runaway Toyotas, the automaker is facing other safety concerns, recalling 600,000 Sienna minivans over rusting spare tire holders.
The recall Friday came as House investigators said they would hold another hearing in May to review possible electronic problems in runaway Toyotas. The Japanese automaker has recalled more than 8 million vehicles because of faulty accelerator pedals, humbling a car company long known for its quality and safety.