Is the car a manual transmission?
If not, that's the problem.
If it is, make sure your clutch switch and cruise switch are not bypassed.
For the 2-step to work, the clutch must be fully released and both switches must be working.
But that's all assuming whomever programmed the X3 did the tune/options correctly. May want to contact them.
Oh and, remove the link from your signature line.