WARNING: This page is about a different car, the 2010 Porsche Cayenne, 2009 Porsche Cayenne, and 2008 Porsche Cayenne. However, it is still accessible from the selected car via links, so may be relevant.
To do this:
Switch on ignition.
→ Time value: 5 s+5 s
Rocker switch must be pushed forwards, or
set off with the vehicle. The levelling system comes on automatically.