Your vehicle has power-assisted brakes that adjust automatically through normal usage.
If the engine is not running or is turned off while driving, the power assist for the brakes will not work. You can still stop your vehicle by applying greater force to the brake pedal than typical. The stopping distance, however, will be longer than with power brakes.
When the engine is not running, the reserve brake power is partially depleted each time the brake pedal is applied. Do not pump the brake pedal when the power assist has been interrupted.
Pump the brake pedal only when necessary to maintain steering control on slippery surfaces.
WARNING
Take the following precautions:
Braking system
Disc brakes wear indicatorHyundai Kona (OS) 2018-2026 Service Manual: Brake Pedal Repair procedures
Removal
1.
Turn ignition switch OFF and disconnect the negative (-) battery cable.
2.
Remove the crash pad lower panel.
(Refer to Body - "Crash Pad")
3.
Disconnect the stop lamp switch connec ...
Hyundai Kona (OS) 2018-2026 Service Manual: Driver Airbag (DAB) Module and Clock Spring Repair procedures
Removal
1.
Disconnect the battery negative cable and wait for at least three minutes
before beginning work.
2.
Putting in a flat tool (Ø5mm) into the guide hole (A) and then release
the DAB fixed pin.
...