Always set the parking brake before leaving the vehicle, to apply:
Firmly depress the brake pedal.
Pull up the parking brake lever 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.
Slightly pull up the parking brake lever.
While pressing the release button (1), lower the parking brake (2).
If the parking brake does not release or does not release all the way, we recommend that the system be 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 the 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 Kona (OS) 2018-2024 Service Manual: Repair procedures
Refrigerant System Service
Basics (R-134a)
Refrigerant Recovery
Use only service equipment that is U.L-listed and is certified to meet the
requirements of SAE J2210 to remove HFC-134a(R-134a) from the air conditioning
system.
...
Hyundai Kona (OS) 2018-2024 Owners Manual: Four wheel drive (4WD)
The Four Wheel Drive (4WD) System delivers engine power to all front and rear
wheels for maximum traction. 4WD is useful when extra traction is required on roads
such slippery, muddy, wet, or snow-covered roads.
Occasional off-road use such as established unpaved roads and trails are OK.
It is a ...