BMW says in government documents that the mat can wear and develop cracks that can interrupt electrical signals. That can cause the front air bag to switch off, activating a warning light. The mats are part of the system that changes how air bags inflate if children are in the seat.
BMW says it doesn't know of any injuries from the problem. It's the third recall for the issue since 2013. The company will notify owners and dealers will replace the mat. The recall is expected to start on Nov. 20.