To apply the EPB (Electronic Parking Brake):
1. Depress the brake pedal.
2. Pull the EPB switch upwards.
Make sure the Parking Brake Warning Light comes on.
The EPB is applied automatically if the [AUTO HOLD] switch is on when the engine is turned off. However, if you press the EPB switch within one second after the engine is turned off, the EPB will not be applied.
WARNING
To reduce the risk of SERIOUS INJURY or DEATH, do not operate the EPB while the vehicle is moving except in an emergency situation. It could damage the brake system and lead to an accident.
Hyundai Sonata LF 2014-2019 Service Manual: Smart Key Unit Repair procedures
Removal
Smart Key Unit
1.
Disconnect the negative (-) battery terminal.
2.
Remove the glove box.
(Refer to Body - "Glove Box Upper Cover Assembly")
3.
Remove the smart key unit (B) after disconnecting the connectors (A) and loosening the bolt and nut.
Interior 1 Antenna
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Hyundai Sonata LF 2014-2019 Service Manual: Rear Seat Folding Lever Repair procedures
Replacement
1.
Fold the rear seat back assembly (A) by pulling the folding lever in the direction of the arrow.
2.
After loosening the mounting bolts, then remove the rear seat folding lever (A).
3.
Install in the reverse order of removal. ...