Welcome light
Door handle lamp (if equipped)
When all the doors (and trunk) are closed and locked, the door handle lamp will come on for about 15 seconds if any of the below is performed.
Headlamp and Parking lamp
When the headlamp (with the lamp switch in the headlamp or AUTO position) is on and all doors (and trunk) are locked and closed, the parking lamp and headlamp will come on for 15 seconds if/or any of the below is performed.
• When the door unlock button is pressed on the remote key or smart key.
At this time, if you press the door lock or unlock button on the remote key or smart key the parking lamp and headlamp will turn off immediately.
You can activate or deactivate the Welcome Light from the User Settings Mode on the LCD display (if equipped with supervision cluster).
For more details, refer to the "LCD Display" section in this chapter.
Interior lamp
When the interior lamp switch is in the DOOR position and all doors (and trunk) are closed and locked, the room lamp will come on for 30 seconds if any of the below is performed.
At this time, if you press the door lock or unlock button on the remote key or smart key the room lamp will turn off immediately.
Hyundai Elantra AD (2016-2020) Service Manual: Components and Components Location
Components
1. ESC Control Module(HECU)2. Front Wheel Speed Sensor3. Rear Wheel Speed Sensor4. ABS Warning lamp5. EBD / Parking brake warning lamp
...
Hyundai Elantra AD (2016-2020) Owners Manual: Inside lamp
Tail light (Type A)
1. Open the trunk.
2. Loosen the retaining screw of the trunk lid cover and then remove the cover.
3. Disconnect the connector and then remove the nuts by turning the nuts counter
clockwise.
4. Take the light assembly out.
5. Remove the socket from the assembly by ...