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 Owners Manual: Maintenance Services
You should exercise the utmost care to prevent damage to your vehicle and injury
to yourself whenever performing any maintenance or inspection procedures.
We recommend you have your vehicle maintained and repaired by an authorized HYUNDAI
dealer. An authorized HYUNDAI dealer meets HYUNDAI's high s ...
Hyundai Sonata LF 2014-2019 Service Manual: In-car Sensor Description and Operation
Description
The sensor contains a thermistor which measures the
temperature of the inside. The signal decided by the resistance value
which changes in accordance with perceived inside temperature, is
delivered to heater control unit and according to this signal the
control unit regulates ...