Hyundai Sonata LF Quiz
Restraints

Seat Belt Pretensioner (BPT) Description and Operation

In this manual: Restraints
General Information — 9Engine Mechanical System — 90Engine Electrical System — 58Emission Control System — 24Engine Control System/Fuel System — 114Drive Shaft and Axle — 15Suspension System — 35Steering — 19Restraints — 50Brake System — 54Body (Interior and Exterior) — 213Body Electrical System — 241Heating, Ventilation, and Air Conditioning — 56DCT (Dual Clutch Transmission) System — 52
~1min read

Description

Seat belt pretensioners (BPT) are installed inside the center pillars (left and right). In a vehicle collision of a certain severity in a frontal impact, the seat belt pretensioner helps reduce the impact force on front seat passengers by retracting the seat belt webbing. This prevents front occupants from being thrown forward and striking the steering wheel or instrument panel when the vehicle crashes.
Never attempt to measure the resistance of the seat belt pretensioner (BPT) circuit, even when using the specified tester. If the circuit resistance is measured with a tester, the pretensioner may accidentally ignite. This may result in serious injury.

Test yourself

A quick Hyundai Sonata LF quiz: every answer comes with an explanation and a link to the manual page.