See also:

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 ...

Checking automatic transmission fluid at normal operating temperature (140°F-158°F [60°C-70°C])
Automatic transmission fluid expands when warmed. To obtain an accurate fluid check, drive the vehicle until it is warmed up (approximately 20 miles [30 km]) until the engine coolant gauge indic ...

Disposal of airbags and airbag equipped vehicles
For disposal of airbags or airbag equipped vehicles, see your authorized dealer. Airbags MUST BE disposed of by qualified personnel. ...