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:
Safety
Four-wheel-disc antilock brakes, traction control and an electronic stability
system are standard. The MKZ's six standard airbags include side-impact airbags
for the front seats and side curtain a ...
Stopping and securing the vehicle
1. Park on a level surface, set the parking brake and activate the hazard
flashers.
2. Place the gearshift lever in P (Park) and turn the engine off. ...
Special operating conditions
If you operate your vehicle primarily in any of the following
conditions,
you need to perform additional maintenance as indicated. If you
occasionally operate your vehicle under any of these con ...
