Even though your vehicle is equipped with the OCS, never install a child restraint in the front passenger's seat. An inflating air bag can forcefully strike a child or child restraint resulting in serious or fatal injury.
WARNING
Hyundai Sonata LF 2014-2019 Service Manual: Memory power seat switch Repair procedures
Removal
1.
Disconnect the negative (-) battery terminal.
2.
Remove the driver door trim.
(Refer to Body - "Front Door Trim")
3.
Remove the memory power seat switch connector (A).
4.
Remove the memory power seat switch (A) after loosening the mounting screws.
Installation
1.
Ins ...
Hyundai Sonata LF 2014-2019 Service Manual: BLUE LINK Unit Components and Components Location
Component (Only for the audio TMU System)
The Blue Link unit for AVN is equipped in the AVN head unit. ...