Nissan spokesman Colin Price said there have been no injuries or crashes, and the company discovered the problem during internal testing. Most of the recalled vehicles are in the United States; others are in Mexico, Canada, Puerto Rico and the Persian Gulf.
Nissan said the recall affects vehicles equipped with Continental Automotive Systems' Occupant Classification System control units. An electronic component in the control unit located in the passenger seat cushion may have been made out of specification.
The Japanese automaker said that could interrupt a signal in the sensor system and prevent the passenger air bag from deploying under certain conditions.
The recall is expected to begin in early November. Owners can contact Nissan at (800) 647-7261 or Infiniti at (800) 662-6200.