A control unit adjusts driver seat and steering wheel positions to maintain immediate usability during automatic driving.
Electronic pre-tensioning control unit determines seatbelt buckle state using belt extension length sensor signals.
A seat belt failure warning apparatus uses a control unit to switch display priority for liquid crystal alarm information.
A seat belt buckle alarm device integrates a speaker and USB port to play recorded messages when the latch opens.
A polymer membrane switch detects buckle status via resistance changes without mechanical parts.