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:
BLIS and/or CTA fault operation
If the BLIS and/or CTA senses a fault on either the left or right sensor,
the BLIS alert indicator will go on and remain on and the message
center will display BLIND SPOT SYSTEM FAULT or CROSS TRA ...
Setting adaptive cruise control
1. Press and release ON. The
message center will display the
gray ACC indicator light, current
gap setting and SET.
2. Accelerate to the desired speed.
3. Press SET upward and release.
...
Multi-point Inspection
In order to keep your vehicle running right, it is important to have the
systems on your vehicle checked regularly. This can help identify
potential issues and prevent major problems. Ford Motor C ...
