Lincoln MKS Owner's Manual page 171

Driving on Hilly or Sloping Terrain
Note: Avoid driving crosswise or turning on steep slopes or hills. A
danger lies in losing traction, slipping sideways and possibly rolling over.
Whenever driving on a hill, determine beforehand the route you will use.
Do not drive over the crest of a hill without seeing what conditions are
on the other side. Do not drive in reverse over a hill without the aid of
an observer.
Although natural obstacles may make it necessary to travel diagonally up
or down a hill or steep incline, you should always try to drive straight up
or straight down.
When climbing a steep slope or hill, start in a lower gear rather than
downshifting to a lower gear from a higher gear once the ascent has
started. This reduces strain on the engine and the possibility of stalling.
If you do stall out, do not try to turnaround because you might roll over.
It is better to back down to a safe location.
Apply just enough power to the wheels to climb the hill. Too much
power will cause the tires to slip, spin or lose traction, resulting in loss of
vehicle control.
Your vehicle has anti-lock brakes, therefore apply the brakes steadily. Do
not "pump" the brakes.
2013 MKS (mks)
Owners Guide gf, 2nd Printing
USA (fus)
All-Wheel Drive
Descend a hill in the same gear you
would use to climb up the hill to
avoid excessive brake application and
brake overheating. Do not descend in
neutral; instead, disengage overdrive
or manually shift to a lower gear.
When descending a steep hill, avoid
sudden hard braking as you could
lose control. The front wheels have to
be turning in order to steer the
vehicle.
171