cancelling

I sometimes take a 40mph limit county road near my home as a shortcut. It is easy to speed on that road and I often meet a county mounty there, so I set the cruise control at 45 and keep off the gas pedal. Navigation is not active. On every occasion, the cruise control cancels itself at...

I could always RTFM, but the translation from Korean to Engrish, leaves a bit to be desired... Can any of your experts tell me how to cancel a destination once guidance has begun? I cannot seem to locate a "Cancel Destination" command. Thanks to all who respond! Drive cheerfully!