To release the EPB (Electronic Parking Brake), press the EPB switch in the following condition:
Make sure the Parking Brake Warning Light goes off.
To release EPB (Electronic Parking Brake) automatically:
1. Start the engine.
2. Fasten the driver’s seat belt.
3. Close the driver’s door, engine hood and trunk.
4. Depress the accelerator pedal while the shift lever is in D (Drive) or Manual shift mode.
The Parking Brake Warning Light should be turned off when the EPB is released.
If the Parking Brake Warning Light is still on even though the EPB has been released, have your vehicle checked by an authorized HYUNDAI dealer.
Information
NOTICE
When the EPB (Electronic Parking Brake) does not release:
Contact an authorized HYUNDAI dealer by loading the vehicle on a flatbed tow truck and have the system checked.
EPB (Electronic Parking Brake) may be automatically applied when:
Information
If the driver turns the engine off while Auto Hold is operating, EPB will be automatically applied. However, if you press the EPB switch within one second after the engine is turned off, the EPB will not be applied.
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: Accelerator Position Sensor (APS) Description and Operation
Description
Accelerator Position Sensor (APS) is installed on the
accelerator pedal module and detects the rotation angle of the
accelerator pedal. The APS is one of the most important sensors in
engine control system, so it consists of the two sensors which adapt
individual sensor power ...