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: Side Impact Sensor (SIS) Description and Operation
Description
Side Impact Sensor (SIS) system consists of two P-SIS which
are installed at each center of the front door module (LH and RH) and
two SIS which are installed at each center pillar nearby (LH and RH).
Side Pressure Sensor is also called P-SIS because it detects pressure due to col ...
Hyundai Sonata LF 2014-2019 Service Manual: Engine And Transmission Assembly Repair procedures
Removal
1.
Remove the engine cover.
2.
Remove the battery and battery tray.
(Refer to Engine Electrical System - "Battery")
3.
Remove the air duct and air cleaner assembly.
(Refer to Intake and Exhaust System - "Air Cleaner")
4.
Remove the engine room under cover.
(Refer to En ...