Hyundai Tucson: Seat Belt Pretensioner

Hyundai Tucson - Fourth generation (NX4) - (2020-2023) - Workshop Manual / Restraint / Seat Belt Pretensioner


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. (Seat belt pretensioner may be activated in side impact collisions if the vehicle has side airbag or curtuain airbag.) 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.

Components Location

  1. Front Seat Belt Pretensioner (BPT)


  1. Disconnect the battery negative terminal.


After disconnecting the cables, wait at least 3 minutes

  1. Remove the front anchor seat belt (A).

  1. Remove the center pillar upper trim.

    (Refer to Body - "Center Pillar Trim")

  2. Disconnect the seat belt pretensioner connector (A) and then remove the seat belt pretensioner.

  1. After loosening the mounting bolt, then remove the front seat belt lower anchor (A).

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

  1. Remove the seat belt pretensioner (A) after loosening the mouning bolts.

Tightening torque : 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 installing the airbag module, confirm proper system operation.


Switch ON the ignition. The SRS indicator light should turn on for about three-six seconds and then off.


     Brake System

     General Information


    Problem Symptoms Table Use the table below to help you find the cause of the problem. The numbers indicate the priority of the likely cause of the problem. Check each part in order. If necessary, replace these parts. Specificat


     Exterior Bumper Antenna

    Disconnect the negative (-) battery terminal. Lift the vehicle. Disconnect the antenna connector (A) from the rear bumper. Remove the antenna (B) after loosening mounting nuts. Buzzer Disconnect the negative (-) battery terminal.

     SRS care

    The SRS is virtually maintenance-free and there are no parts you can safely service by yourself. If the SRS air bag warning light does not illuminate when the Engine Start/Stop button is in the ON position, or continuously remains on, we recomm