System: heater, water, defroster, heater core.vehicle description: passenger cars.note: if your vehicle IS presented to an authorized dealer on an agreed upon service date and the remedy IS not provided free of charge within a reasonable time or the remedy does not correct the defect, please contact mitsubishi at 1-800-222-0037. Also, contact the national highway traffic safety administration's auto safety hotline at 1-800-424-9393.