The remote key will not work if any of the following occur:
When the remote key does not work correctly, open and close the door with the mechanical key. If you have a problem with the remote key contact an authorized HYUNDAI dealer.
If the remote key is in close proximity to your mobile phone, the signal could be blocked by your mobile phones normal operational signals. This is especially important when the phone is active such as making and receiving calls, text messaging, and/or sending/receiving emails.
Avoid placing the remote key and your mobile phone in the same pants or jacket pocket and always try to maintain an adequate distance between the two devices.
Information
This device complies with Part 15 of the FCC rules.
Operation is subject to the following three conditions:
1. This device may not cause harmful interference, and
2. This device must accept any interference received, including interference that may cause undesired operation.
3. Changes or modifications not expressly approved by the party responsible for compliance could void the user's authority to operate the device.
NOTICE
Keep the remote key away from electromagnetic materials that blocks electromagnetic waves to the key surface.
Hyundai Sonata LF 2014-2019 Service Manual: Panorama Sunroof Switch Repair procedures
Inspection
1.
Disconnect the negative (-) battery terminal.
2.
Open the sunglass case cover from the overhead console then
remove the 2 screws holding the overhead console. Disconnect the switch
connector and Map lamp connector, and then remove the overhead console
lamp (A).
3.
Che ...
Hyundai Sonata LF 2014-2019 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 ReplaceVibrationWear, damage or bending of driveshaftReplaceDriveshaft rattle an ...