Reaking-in your vehicle

Your vehicle does not need an extensive break-in. Try not to drive continuously at the same speed for the first 1,000 miles (1,600 km) of new vehicle operation. Vary your speed frequently in order to give the moving parts a chance to break in.
Drive your new vehicle at least 1,000 miles (1,600 km) before towing a trailer. For more detailed information about towing a trailer, refer to Trailer towing in the Tires, Wheels and Loading chapter.
Do not add friction modifier compounds or special break-in oils since these additives may prevent piston ring seating. See Engine oil in the Maintenance and Specifications chapter for more information on oil usage.
See also:
Perchlorate material
Certain components of this vehicle such as airbag modules, safety belt
pretensioners, and button cell batteries may contain Perchlorate Material
– Special handling may apply for service or vehicle ...
Adjustable head restraints
Your vehicle is equipped with front row head restraints that are vertically
adjustable.
WARNING: To minimize the risk of neck injury in the event of a
crash, the driver and passenger occupants sh ...
First generation (1998–2002)
The 1998 Navigator introduced the concept of the American luxury SUV,
competing at first with only the Land Rover Range Rover. It was trimmed with
leather, wood, and fine carpeting, but its humble ...
