KCBS_740 DETROIT (AP) — Mazda is recalling almost 4,000 older small pickup trucks mainly in southern U.S. states to replace Takata air bag inflators.

The recall covers passenger air bags in B-Series trucks made by Ford from the 2007 to 2009 model years.

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The recall is part of a massive expansion of Takata recalls announced in May. Seventeen automakers are adding 35 million-to-40 million inflators to what already was the largest auto recall in U.S. history. The number of inflators recalled could hit 69 million.

Takata uses ammonium nitrate to create a small explosion to fill air bags. But the chemical can deteriorate and burn too fast, blowing apart a metal canister and hurling shrapnel. At least 11 people have died worldwide.

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Dealers will replace the inflators, but no timing was announced for repairs.

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