Which automotive component was responsible for the largest vehicle recall in transportation history, affecting over 100 million vehicles globally?

Product recalls can significantly impact transportation companies, affecting brand reputation, consumer trust, and financial performance. In the automotive industry, one particular recall stands as the largest and most expensive safety campaign in history, affecting vehicles across multiple manufacturers worldwide. Test your knowledge about this massive transportation industry challenge that continues to have ramifications today.

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Takata airbag inflators
Toyota acceleration pedals
GM ignition switches
Volkswagen emissions software