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 situations, additional engine braking is needed to reduce the load on the vehicle’s regular brake system to prevent them from overheating. For more information, reference Automatic transmission operation in the Driving chapter.
Note: If ACC is applying brakes for an extended period of time, an audible alarm will sound and ACC will shut down. This is to allow the brakes to cool down. When the brakes have cooled down, the ACC will again function normally.
See also:
Overview
The Lincoln Navigator serves as Lincoln's full-sized luxury SUV. The
Navigator shares the same platform with the lesser Ford Expedition full-size
SUV. Introduced in 1998, the Navigator has proven ...
Blocked sensor
An extreme build-up of materials on
the left and/or right quarter panel
fascias such as mud or snow can
cause degraded performance of the
BLIS . Also, heavy rain can cause
the same effect. ...
Programming spare intelligent access keys
You must have two previously programmed intelligent access keys inside
the vehicle and the new unprogrammed intelligent access keys readily
accessible. If two previously programmed keys are not av ...
