The following items must be serviced more frequently on cars normally used under severe driving conditions. Refer to the chart below for the appropriate maintenance intervals.
R : Replace
I : Inspect and, after inspection, clean, adjust, repair or replace if necessary
Hyundai Sonata LF 2014-2019 Service Manual: Repair procedures
Replacement
1.
Disconnect the negative (-) battery terminal.
2.
Remove the crash pad lower panel.
(Refer to Body - "Crash Pad")
3.
Remove the steering column upper & Lower shroud.
4.
Remove the ignition switch (A) and disconnecting the Key Warning / immobilizer connector.
5.
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Hyundai Sonata LF 2014-2019 Service Manual: Front Door Window Glass Components and Components Location
Component Location
1. Front door window glass
...