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:
Speed control
With speed control set, you can maintain a set speed without keeping
your foot on the accelerator pedal.
WARNING: Do not use the speed control in heavy traffic or on
roads that are winding, slipp ...
Safety
Rare for a new model, the MKX has completed all the major crash tests from
our preferred source, the Insurance Institute for Highway Safety. It has fared
exceptionally well, with Good scores (the ...
Navigation system (if equipped)
Your vehicle may be equipped with a navigation system. Refer to the
Navigation System supplement for further information. ...
