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: A/C Pressure Transducer Repair procedures
Inspection
1.
Measure the pressure of high pressure line by measuring voltage output between terminal "1" and "2".
2.
Inspect the voltage value whether it is sufficient to be regular value or not.
Vdd * (0.001758 * Pressure(Psia) + 0.074126
3.
If the measured voltage value is not wi ...
Hyundai Sonata LF 2014-2019 Owners Manual: Good Braking Practices
WARNING
Whenever leaving the vehicle or parking, always come to a complete stop and
continue to depress the brake pedal. Move the shift lever into the P (Park) position,
then apply the parking brake, and place the ignition switch in the OFF position.
Vehicles with the parking brake not fully engag ...