
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.
Rear Combination Light Bulb Replacement
High Mounted Stop Light ReplacementHyundai Elantra AD (2016-2020) Service Manual: Front Wheel Guard Repair procedures
Replacement
•
Put on gloves to prevent hand injuries.
•
When removing with a flat-tip screwdriver or remover, wrap protective tape around the tools to prevent damage to components.
•
Take care not to scratch the body surface.
...
Hyundai Elantra AD (2016-2020) Service Manual: Passenger Airbag (PAB) Module Repair procedures
Removal
1.
Disconnect the battery negative cable and wait for at least three minutes before beginning work.
2.
Remove the glove box housing.
(Refer to Body - "Glove Box Upper Cover Assembly")
3.
Remove the passenger airbag mounting bolts.
4.
Disconnect the passenger airbag connector ...