Resuming the set speed

Press and release RES/CNCL. This will automatically return the vehicle to the previously set speed. The set speed will display continuously in the message center while ACC is active.
Note: Resume should only be used if the driver is aware of the set speed and intends to return to it.
See also:
The Inside
The MKX's cabin is mostly an asset, but a couple of aspects hold it back. I
found it pretty easy to get into the seats, which provide a nice ride height
without requiring a grappling hook — or ste ...
Fuel quality
If you are experiencing starting, rough idle or hesitation driveability
problems during a cold start, try a different brand of “Regular” unleaded
gasoline.
Do not add aftermarket fuel additive ...
Tire rotation
Rotating your tires at the recommended interval (as indicated in the
Scheduled Maintenance chapter) will help your tires wear more evenly,
providing better tire performance and longer tire life.
...
