See also:

Issuing a warning
If the vehicle begins leaving the lane and a lane marking has been detected, the steering wheel begins vibrating. If the turn signal is set before the lane is changed, a warning is not issued. ...

Note
Children in the vehicle Do not leave children unattended in the vehicle; otherwise, they could endanger themselves and other persons, e.g., by opening the doors. ...

Child seat security
Child seat security The rear safety belts ▷ BMW X5: all safety belts of the 2nd and 3rd row seats ▷ BMW X6: all safety belts of the 2nd row seats And the safety belt for the front ...