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:
Touchscreen features
If your vehicle is equipped with a touchscreen system, you can access
climate features via the touchscreen and voice commands. Refer to the
Climate Control chapter in your MyFord Touch™ supplement ...
SYNC with MyLincoln Touch
SYNC with MyLincoln Touch is standard in the new MKZ. The combined system
makes it easier to use the entertainment, climate and available navigation
features as well as devices brought into the ca ...
Emission control system
WARNING: Do not park, idle, or drive your vehicle in dry grass
or other dry ground cover. The emission system heats up the
engine compartment and exhaust system, which can start a fire.
WARNING: ...
