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: Stop Lamp Switch Troubleshooting
Troubleshooting
1.
Part diagnosis
Items Cause Symptom Switch fuse Faulty fuse connection, Damaged fuse
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DTC Code : P0504
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Symptom : Shifting gear trouble, Starting failure, Cruise
control function cancelation trouble, EPB function cancelation trouble,
Stop lamp light ...
Hyundai Elantra AD (2016-2020) Service Manual: Front Door Window Glass Components and Components Location
Component Location
1. Front door window glass
...