Which vehicle component was responsible for the largest automotive recall in history, affecting over 100 million vehicles worldwide across multiple manufacturers?

Safety recalls are critical in the transportation industry to protect consumers from potential hazards. While most recalls affect thousands or even millions of vehicles, one particular safety issue triggered the largest and most expensive auto recall campaign in history. Test your knowledge about this massive product safety action that affected multiple major automakers and continues to impact the industry today.

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Takata airbag inflators
Toyota acceleration pedals
Firestone tires
GM ignition switches