Hyundai Sonata: Front Seat / Front Seat Frame Assembly Repair procedures

Replacement

•	Put on gloves to protect your hands.

•	When prying with a flat-tip screwdriver or use a prying trim tool, wrap it with protective tape, and apply protective tape around the related parts, to prevent damage.

•	Use a plastic panel removal tool to remove interior trim pieces to protect from marring the surface.

•	Take care not to bend or scratch the trim and panels.

1.	Remove the front seat back cover. (Refer to Front Seat - "Front Seat Back Cover")

2.	Remove the front seat cushion cover. (Refer to Front Seat - "Front Seat Cushion Cover")

3.	Remove the side airbag (SAB) module. (Refer to Airbag Module - "Side Airbag (SAB) Module")

4.	Remove the lumbar support assembly. (Refer to Body Electrical System - "Lumbar Support Unit")

5.	After loosening the mounting bolts, then disconnect the front seat back frame assembly (A) and front seat cushion frame assembly (B).

Install in the reverse order of removal.

•	Remove the side air bag for replacing side air bag installation seat. (Refer to Restraint - "Side Airbag (SAB) Module")

•	Before service, be fully aware of precautions and service procedure relevant to air bag. (Refer to Restraint - "Side Airbag (SAB) Module")

Component Location 1. Front seat back frame assembly2. Front seat cushion frame assembly ...

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Hyundai Sonata LF 2014-2019 Service Manual: Curtain Airbag (CAB) Module Description and Operation
Description Curtain airbags are installed inside the headliner (LH and RH) and protect the driver and passenger from danger when side crash occurs. The SRSCM determines deployment of curtain airbag by using side impact sensor (SIS) signal. Never attempt to measure the ...