Recommended shift speeds

Upshift according to the following chart:

See also:
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 ...
Display Mode
Press the right arrow on the left steering wheel mounted button when
Display Mode is selected. The boxes in the upper right corner of the
screen indicate that there are multiple screens that you c ...
Hilly condition usage
It is recommended that the driver select a lower gear position when ACC
is active in situations such as prolonged downhill driving on steep grades
(i.e., driving in mountainous areas). In these si ...
