F 150 Heritage 4WD Pickup V8-5.4L SOHC VIN Z Bi-fuel (2004)
Front Door Hinge: Service Precautions
WARNING: To avoid accidental deployment and possible injury, the backup power supply must be depleted before repairing or installing any
new front or side air bag supplemental restraint (SRS) components and before removing, installing, adjusting, or striking components near the
front or side strikers, seats, and hood latches.