Selective unlocking
WARNING: This page does not describe the selected car, but rather 7 other vehicles, including the 2017 BMW X3, 2016 BMW X3, 2015 BMW X3, 2014 BMW X3, and 2013 BMW X3. However, it is still accessible from the selected car via links, so may be relevant.
The first time there is an unlocking command, only the driver's door is unlocked. The central locking system sets all other doors from deadlock to lock. The alarm system (DWA) is switched off and the doors remain locked.
With a second unlocking command, the remaining doors are unlocked. This function can be activated in the Personal Profile (depends on national-market version concerned).