See also:

Air filter
Refer to scheduled maintenance information for the appropriate intervals for changing the air filter element. When changing the air filter element, use only the air filter element listed. Refer t ...

Determining if the system is operational
The SRS uses a readiness light in the instrument cluster or a tone to indicate the condition of the system. Refer to Warning lights and chimes in the Instrument Cluster chapter. Routine maintenanc ...

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 ...