See also:

Determining if the system is operational
The supplemental restraint system uses a warning indicator light in the instrument cluster or a backup tone to indicate the condition of the system. Refer to the Warning lights and chimes section ...

Second generation (2003–2006)
The Navigator was updated in 2003, along with the Ford Expedition, on the new Ford U platform. The interior was also substantially revised to bring it up to the level expected by luxury buyers. So ...

Folding rear head restraints (if equipped)
The outboard rear head restraints may have a folding feature. Press the button on the side of the head restraints to fold them forward. Pull the head restraints up to unfold. ...