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) 2018-2025 Service Manual: Auto Head Lamp Leveling Unit Troubleshooting
Inspection with GDS Initialization and diagnosis sequence by using GDS equipment. The following is the summarized A/S procedure. No Procedure 1 Park the vehicle on level ground ...

Hyundai Kona (OS) 2018-2025 Owners Manual: If the engine will not start
If the engine doesn't turn over or turns over slowly Be sure the shift lever is in N (Neutral) or P (Park) if it is dual clutch transmission vehicle. The engine starts only when the shift lever is in N (Neutral) or P (Park). Check the battery connections to be sure they are clean and tight. ...

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