Low speed automatic cancellation

ACC is not functional at vehicle speeds below 18 mph (30 km/h). Once the vehicle speed drops below 18 mph (30 km/h), an audible alarm will sound, the head’s up display will flash and the automatic braking will be released.
See also:
Technology and Features
Besides the looks, impressive steering and comfortable seating, the other
thing the MKS has going for it is an intuitive, feature-packed technology
center. Unfortunately, the attractive base price ...
Reaking-in your vehicle
Your vehicle does not need an extensive break-in. Try not to drive
continuously at the same speed for the first 1,000 miles (1,600 km) of
new vehicle operation. Vary your speed frequently in order ...
Crafted, natural, comfortable
Standard 12-way adjustable front seats, adjustable pedals and power
tilt/telescoping steering wheel help accommodate a wide range of drivers.
The leather surfaces for the first two rows of seating ...
