2004 Nissan Frontier Owner's Manual - Page 36

● If the supplemental air bag warning light located in the instrument panel next to the speedometer comes on when the passenger supplemental air bag OFF light is also illuminated, something may be wrong with the air bag system. Infants, children ages 1-12 or persons with special medical conditions should not use the front passenger seat until the system is checked by your NISSAN dealer. WRS0215 LRS0100 SUPPLEMENTAL AIR BAG WARNING LABELS Warning labels about the supplemental front air bag system are placed in the vehicle as shown in the illustration. SUPPLEMENTAL AIR BAG WARNING LIGHT The supplemental air bag warning light, displaying in the instrument panel, monitors the circuits of the supplemental air bag and pre-tensioner seat belt systems. The circuits monitored by the supplemental air bag warning light are the diagnosis sensor unit, crash zone sensor, supplemental air bag modules, pretensioner seat belts and all related wiring. When the ignition key is in the ON or START position, the supplemental air bag warning light illuminates for about 7 seconds and then turns off. This means the system is operational. 1-18 Safety-Seats, seat belts and supplemental air bags