Seatbelt Buckle Sensor
WARNING: This page is about a different car, the 2018 Lincoln Navigator. However, it is still accessible from the selected car via links, so may be relevant.
The seatbelt buckles contain integrated sensors that are Hall-effect switches. The seatbelt buckle sensors are serviced with the seatbelt buckle.
On vehicles equipped with rear inflatable seatbelts, the buckle at each second row outboard seating position includes the seatbelt buckle sensor and seatbelt inflator. The second row seatbelt buckle is serviced only as an assembly with the sensor and inflator. Additional buckle sensors are located at the second row and third row seating positions, as well as at the third row outboard seating positions, and are used for Belt-Minder® operation.