ACC not available

Several conditions exist which can cause ACC to deactivate or prevent ACC from activating when requested. These conditions include:
• The sensor is blocked, refer to Blocked sensor in this section.
• Brake temperature is high, refer to Hilly condition usage in this
section.
• A failure has occurred in the ACC system or related system.
See also:
Cabin air filter
Your vehicle is equipped with a cabin air filter, located behind the glove
box. The particulate air filtration system is designed to reduce the
concentration of airborne particles such as dust, sp ...
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 ...
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 ...
