This indicator light illuminates:
In this case, we recommend you to have your vehicle inspected by an authorized HYUNDAI dealer.
Hyundai Sonata LF 2014-2019 Service Manual: License Lamps Repair procedures
Removal
1.
Disconnect the negative (-) battery terminal.
2.
Remove the trunk lid panel.
(Refer to Body - "Trunk Lid Trim")
3.
Remove the license lamp after disengaging the license lamp mounting clip (A).
4.
Remove the license lamp assembly after disconnect the license connector (A). ...
Hyundai Sonata LF 2014-2019 Service Manual: Components and Components Location
Component Location
1. DDM (Driver Door Module)2. ADM (Assistant Door Module)3. RRDM / RLDM (Rear Door Module)4. Front window motor5. Rear window motor
...