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U.S. Probes 12 Million Vehicles Over Risk Air Bags Won't Deploy

Massive Airbag Recall Prompts Safety Concerns

Photographer: Joe Raedle/Getty Images

The U.S. National Highway Traffic Safety Administration is investigating a possible deadly flaw in some 12.3 million vehicles that could prevent air bags from deploying in a crash.

The agency is examining air-bag control units supplied by parts maker ZF-TRW that could fail due to “electrical overstress” and prevent air bags and seat belt pretensioners from activating as normal in a crash, NHTSA said in a notice on its website Tuesday.