ACC not available

ACC not available  - Following a vehicle - Adaptive cruise control (ACC) (if equipped) - Driver Controls - Lincoln MKS Owners Manual - Lincoln MKS

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.

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