1. Loosen the lens retaining screws with a philips head screwdriver.
2. Remove the lens.
3. Remove the bulb by pulling it straight out.
4. Install a new bulb.
5. Reinstall the lens securely with the lens retaining screws.
Hyundai Sonata LF 2014-2019 Owners Manual: Warning messages
WARNING
Whenever leaving the vehicle or parking, always come to a complete stop
and continue to depress the brake pedal. Move the shift lever into the P (Park)
position, press the EPB switch, and press the Engine Start/Stop button to the
OFF position. Take the Smart Key with you when exiting ...
Hyundai Sonata LF 2014-2019 Service Manual: Thermostat Repair procedures
Removal
Disassembly of the thermostat would have an adverse effect, causing a lowering of cooling efficiency.
1.
Drain engine coolant so that its level would be under the thermostat height.
2.
Remove the radiator lower hose.
(Refer to Cooling System - "Radiator Hose ...