Hyundai Kona: Seat Belt Pretensioner / Description and operation

Description
The Seat Belt Pretensioners (BPT) are installed inside Center Pillar (LH & RH). When a vehicle crashes with a certain degree of frontal impact, the pretensioner seat belt helps to reduce the severity of injury to the front seat occupants by retracting the seat belt webbing. This prevents the front occupants from thrusting forward and hitting the steering wheel or the instrument panel when the vehicle crashes.
(Seat belt pretensioner may be activated in side impact collisions if the vehicle has side airbag or crutain airbag.)
  
Never attempt to measure the circuit resistance of the Seat Belt Pretensioner (BPT) even if you are using the specified tester. If the circuit resistance is measured with a tester, the pretensioner will be ignited accidentally. This will result in serious personal injury.
Components and components location
Components 1. Seat Belt Pretensioner (BPT) 2. Rear Seat Belt Pretensioner ...

Repair procedures
Removal Front seat belt pretensioner (BTP) 1. Disconnect the battery negative cable, and wait for at least three minutes before beginning work. ...

Other information:

Hyundai Kona (OS) 2018-2020 Owners Manual: Do not lie down
Sitting in a reclined position when the vehicle is in motion can be dangerous. Even when buckled up, the protections of your restraint system (seat belts and/or air bags) is greatly reduced by reclining your seatback. Seat belts must be snug against your hips and chest to work properly. During an ...

Hyundai Kona (OS) 2018-2020 Service Manual: Alternator Repair procedures
Removal 1. Turn ignition switch OFF and disconnect the battery negative (-) battery. 2. Disconnect the alternator "B" terminal (A) after loosening the mounting nut. 3. Disconnect the alte ...

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