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 turning the socket counterclockwise until the tabs on the socket align with the slots on the assembly.
6. Remove the bulb by pulling it out.
7. Insert a new bulb by inserting it into the socket.
8. Install the light assembly to the trunk.
9. Reinstall the nuts and connector and then the trunk lid cover by pushing in the screw.
Stop/Tail light (Type B)
Your vehicle is equipped with LED lamps. LED lamps do not have replaceable bulbs. If the LED lamp does not operate, have the vehicle checked by an authorized HYUNDAI dealer.
Backup lamp (Type A/Type B)
If the light bulb does not operate, have the vehicle checked by an authorized HYUNDAI dealer.
Hyundai Elantra AD (2016-2020) Service Manual: Front Door Latch Components and Components Location
Component Location
1. Front door latch
...
Hyundai Elantra AD (2016-2020) Service Manual: Cylinder Head Cover Components and Components Location
Components
1. Cylinder head cover2. Cylinder head cover gasket
...