1. Open the trunk.
2. Remove the socket by turning it counterclockwise until the tabs on the socket align with the slots.
3. Remove the bulb from the socket by pressing it in and rotating it counterclockwise until the tabs on the bulb align with the slots in the socket. Pull the bulb out of the socket.
4. Insert a new bulb by inserting it into the socket and rotating it until it locks into place.
5. Install the socket in the assembly by aligning the tabs on the socket with the slots in the assembly. Push the socket into the assembly and turn the socket clockwise.
Hyundai Elantra AD (2016-2020) Service Manual: Rear Door Module Repair procedures
Replacement
1.
Remove the rear door window glass.
(Refer to Rear Door - "Rear Door Window Glass")
2.
Remove the rear door outside handle.
(Refer to Rear Door - "Rear Door Outside Handle")
3.
Loosen the rear door latch mounting screws.
Tightening torque :
6.9 ~ 10.8 N.m (0.7 ~ 1.1 ...
Hyundai Elantra AD (2016-2020) Service Manual: Troubleshooting
Troubleshooting
Trouble SymptomProbable causeRemedyVehicle pulls to one sideScoring of driveshaft ball jointReplaceWear, rattle or scoring of wheel bearingReplaceDefective front suspension and steeringAdjustment or ReplaceVibartionWear, damage or bending of driveshaftReplaceDriveshaft rattle an ...