If the remote key is not working properly, try replacing the battery with a new one.
Battery Type: CR2032
To replace the battery:
1. Pry open the rear cover of the remote key.
2. Remove the old battery and insert the new battery. Make sure the battery position is correct.
3. Reinstall the rear cover of the remote key.
If you suspect your remote key might have sustained some damage, or you feel your remote key is not working correctly contact an authorized HYUNDAI dealer.
Information
An inappropriately disposed battery can be harmful to the environment and human health. Dispose the battery according to your local law(s) and regulation.
Hyundai Sonata LF 2014-2019 Service Manual: Fuel Tank Air Filter Repair procedures
Replacement
1.
Turn the ignition switch OFF and disconnect the negative (-) battery cable.
2.
Lift the vehicle.
3.
Remove the rear-left wheel & tire and house cover.
4.
Disconnect the canister close valve connector (A).
5.
Disconnect the vapor hose (B).
6.
Remove instal ...
Hyundai Sonata LF 2014-2019 Service Manual: Schematic Diagrams
Schematic
[EPB Type]
[General Type]
Terminal Funtion
[EPB Type]
PIN NODesciptionCurrentmaxmin1Voltage supply for pump motor39A 10A 2RR EPB motor power30A - 3RR EPB motor ground30A - 4- - - 5Local CAN High 30mA 20mA 6Electric ...