Always set the parking brake before leaving the vehicle, to apply:
Firmly depress the brake pedal.
Depress the parking brake pedal down as far as possible.
WARNING
To reduce the risk of SERIOUS INJURY or DEATH, do not operate the parking brake while the vehicle is moving except in an emergency situation. It could damage the brake system and lead to an accident.
To release:
Firmly depress the brake pedal.
Depress the parking brake pedal down and it will release automatically.
If the parking brake does not release or does not release all the way, have your vehicle checked by an authorized HYUNDAI dealer.
WARNING
NOTICE
Check the Parking Brake Warning Light by placing the ignition switch to the ON position (do not start the engine).
This light will be illuminated when the parking brake is applied with the ignition switch in the START or ON position.
Before driving, be sure the parking brake is released and the Brake Warning Light is OFF.
If the Parking Brake Warning Light remains on after the parking brake is released while engine is running, there may be a malfunction in the brake system. Immediate attention is necessary.
If at all possible, cease driving the vehicle immediately. If that is not possible, use extreme caution while operating the vehicle and only continue to drive the vehicle until you can reach a safe location.
Hyundai Sonata LF 2014-2019 Service Manual: Fuel Pressure Sensor (FPS) Schematic Diagrams
Circuit Diagram
Fail-Safe Mode
Item Fail-Safe Output Voltage (V) 12
If the fuel pressure sensor malfunctions, it enters fail safe
mode. This means that the fuel pressure rises to match the increasing
value of the current level and the pressure in the low press ...
Hyundai Sonata LF 2014-2019 Service Manual: RCV Control Solenoid Valve Repair procedures
Inspection
1.
Turn the ignition switch OFF.
2.
Disconnect the RCV connector.
3.
Measure resistance between the RCV terminals 1 and 2.
4.
Check that the resistance is within the specification.
Specification: Refer to "Specification"
Removal
1.
Turn the ignition ...