To set Cruise Control speed:

-
Press the Driving Assist
button on the steering wheel, to turn the function on. The cruise indicator light will illuminate.
-
Accelerate to the desired speed, which must be more than approximately 30 km/h (20 mph).
-
Push the SET- button, and release it at the desired speed. The cruise set indicator light will illuminate. Release the accelerator pedal at the same time. The desired speed will automatically be maintained.

On a steep grade, the vehicle may slow down or speed up slightly whilst going downhill.