Honda Motor Co. is recalling an additional 4.89 million vehicles around the world for a new type of problem in Takata air bag inflators, for which Japanese rivals Toyota and Nissan have already carried out recalls.

Honda also announced a global recall for 47,800 Acura and other model vehicles for a defect in the radar system designed to make cars safer to drive by stopping automatically before crashes.

With Thursday's announcement, the recalls over the Takata Corp. air bag inflator problems have ballooned to 19.6 million vehicles for Honda.

In the latest problem, a leak can happen while the vehicle is in use, causing a rupture, and the air bag could explode, according to Honda. The earlier recalls were for exploding inflators in air bags.