Hyundai Genesis: Seat Belt Pretensioner / Pre-activeSeat Belt Unit (PSB) Description and Operation

Hyundai Genesis (DH) 2013-2016 Service Manual / Restraint / Seat Belt Pretensioner / Pre-activeSeat Belt Unit (PSB) Description and Operation

Description

Pre-active Seat Belt (PSB) guarantees initial restraint performance by winding the seat belt right before a crash or dangerous condition and enhances the effects of the seat belt pretensioner, load limiter and airbags.

Moreover, it stabilizes the driver from forward and centrifugal force by rewinding the seat belt during sudden braking or turning. And it warns the driver with seat belt vibration when the vehicle gets out of its lane or any other dangerous situation occurs.

Main Function

Full Retraction

Maintains a more safe posture by strongly rewinding the seat belt right before a crash.

[Operation Condition]

A.	When a frontal crash is detected by the radar

B.	When sudden braking

C.	When vehicle control function is disabled

Dynamic Support

Stabilizes the driver from foward and centrifugal force by rewinding the seat belt during sudden braking or turning.

[Operation Condition]

A.	When sudden braking (Forward force)

B.	When sudden turning (Centrifugal force)

C.	When sliding in icy road

3.	Slack Removal If the seat belt isn’t completely fastened, it will not work normally in a vehicle crash situation. In this case, this system completely fastens the seat belt by winding the belt slightly when the vehicle speed reaches 40kph.

4.	Seat Belt Parking After the seat belt is released, it returns the seat belt to its original position in 3 seconds by retracting the belt. However, this function does not work when the belt has already returned to its original position.

Pre-activeSeat Belt (PSB) Repair procedures

Removal 1. Disconnect the battery negative cable, and wait for at least three minutes before beginning work. 2. Remove the front anchor seat belt (A). ? Anchor seat bel ...

Pre-activeSeat Belt Unit (PSB) Components and Components Location

Components TCS:Traction Control System ESP:Electronic Stabilty Program System ACU:Airbag Control Unit CGW:Central Gate Way SCC:Smart Cruise Control LDWS:Lane Departure Warning System ...

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