Mitsubishi Motors North America (MMNA) is recalling certain 2004-2006 Mitsubishi Lancer vehicles that previously received a like-for-like passenger side frontal air bag inflator under recall 15V321 as interim remedy. Also recalled are 2004-2006 Lancer vehicles located in Guam or Saipan that previously received or never received a new inflator under 15V321 or 17V569. These passenger side frontal air bag inflators may be susceptible to moisture intrusion which, over time, could cause the inflator to explode in the event of an air bag deployment.