KIA Niro: Seat Belt System

Pretensioner (BPT) / Description And Operation

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.


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.

Pretensioner (BPT) / Components And Components Location

Pretensioner (BPT) / Repair Procedures

Pretensioner (BPT) / Repair Procedures


  1. Disconnect the battery negative terminal, and wait for at least three minutes before beginning to work.
  2. Remove the front seat belt anchor (A).

  1. Remove the door scurff trim.

    (Refer to Body (Interior and Exterior) - "Door scuff trim")

  2. Remove the center pillar trim.

    (Refer to Body (Interior and Exterior) - "Center pillar trim)

  3. Unscrew the top of the seat belt anchor bolts (A).

Tightening torque: 39.2 - 53.9 N.m (4.0 - 5.5 kgf.m, 28.9 - 39.8 lb-ft)

  1. It separates the seat belt pre-tensioner connector (A).

  1. Loosen the safety belt pretensioner mounting bolt (A, B) and remove the safety belt pretensioners.

Tightening torque

(A):7.8 -11.8 N.m (0.8 - 1.2 kgf.m, 7.8-11.8 lb-ft)

(B):39.2 - 53.9 N.m (4.0 - 5.5 kgf.m,28.9 - 39.8 lb-ft)



  1. Install in the reverse order of removal.
  2. After replacing the safety belt pretensioners must ensure that the system is operating normally.


Turn the ignition switch ON; the SRS indicator light should be turned on for about six seconds and then go off


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