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: Components and Components Location
Component Location
1. Horn switch2. Horn relay (Built - in Metal Core Block PCB)3. Horn (Low pitch)4. Horn (High pitch)5. Clock spring
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Hyundai Sonata LF 2014-2019 Service Manual: Water pump Components and Components Location
Components
1. Gasket2. Water pump 3. Water pump pulley
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