Nissan has a "do not drive" alert for almost 84,000 vehicles

Nissan is urging the owners of about 84,000 older vehicles to stop driving them because their Takata air bag inflators have an increased risk of exploding in a crash and hurling dangerous metal fragments.

The National Highway Traffic Safety Administration issued a "Do Not Drive" alert for nearly 84,000 Nissan-made vehicles produced between 2002-2006 that were equipped with defective Takata air bags.