The second generation BMW has a function of automatically locking the doors when driving at a certain speed (20 km/h by default). You can also enable all doors to be activated by a button. However, it should be noted that if automatic door locking was chosen, they are unlocked when the engine is stopped. If a manual lock mode was selected, you must also manually unlock the doors. This can be done either by the same central button or by pulling the handle on the door twice.
