TOKYO, JAPAN --- Toyota Motor Corp. said it has developed a supplemental restraint system (SRS)  -- a rear-seat center air bag -- to help reduce the severity of secondary injuries incurred by rear-seat passengers in a side-on collision.

The new airbag is fitted in a large, fixed, rear-seat center console that comes in a version of a Toyota model to be launched in Japan in the near future.

When the vehicle is hit side-on, the airbag deploys from the top of the console to act as a barrier that helps lessen injuries caused when passengers collide with each other or into the console.