If the EPB Malfunction Indicator remains on, comes on while driving, or does not come on when the Engine Start/Stop button is in the ON position, this indicates the EPB may have malfunctioned. Have your vehicle checked by an authorized HYUNDAI dealer as soon as possible.
The EPB Malfunction Indicator may illuminate when the ESC indicator comes on to indicate that the ESC is not working properly, but it does not indicate a malfunction of the EPB.
NOTICE
Hyundai Sonata LF 2014-2019 Service Manual: Boost Pressure Sensor (BPS) Specifications
Specification
Pressure[kPa (kg/cm? / psi)]Resistance (k?)32.5 (0.33, 4.71)0.5284 (2.90, 41.19)4.5
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Hyundai Sonata LF 2014-2019 Owners Manual: Disc Brakes Wear Indicator
When your brake pads are worn and new pads are required, you will hear a high
pitched warning sound from your front or rear brakes. You may hear this sound come
and go or it may occur whenever you depress the brake pedal.
Please remember some driving conditions or climates may cause a brake squeal ...