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:
Jump starting
1. Start the engine of the booster vehicle and run the engine at
moderately increased speed.
2. Start the engine of the disabled vehicle.
3. Once the disabled vehicle has been started, run both ...
Cleaner air
Ford endorses the use of reformulated “cleaner-burning” gasolines to
improve air quality, per the recommendations in the Choosing the right
fuel section. ...
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 ...
