See also:

MKX in the Market
I'm conflicted over the MKX. There's much to like, but there are substantial oversights — some of which cannot be overcome easily or cheaply by the owner, if at all. For example, xenon headlights, ...

Fuel quality
If you are experiencing starting, rough idle or hesitation driveability problems during a cold start, try a different brand of unleaded gasoline. If the problems persist, see your authorized deal ...

Turning off speed control
To turn off the speed control, press OFF or turn off the ignition. Note: When you turn off the speed control or the ignition, your speed control set speed memory is erased. ...