A system for a vehicle includes a first pressure module and a blockage indication module. The method comprises providing a global privacy management interface that presents a selection tool for enabling a user to review privacy options and interests. The housing 16 has engagement ribs 16e which are projected from the housing 16 to be engaged with the axial grooves 8e, and fastening pieces 12f, which are formed at a circumferential side of each of the engagement ribs 16e, the fastening pieces 12f being fitted in the fastening grooves 12d. This opposing force may cause a gap between certain surfaces until the adjustment to the spacer is completed.