See also:

INSTRUMENT PANEL LIGHT CONTROL (RHEOSTAT)
The instrument panel lights can be made brighter or dimmer by turning the instrument panel light control knob. ...

High mounted stop light replacement
If the light is not operating, have the vehicle checked by an authorized HYUNDAI dealer. ...

Brake hoses and lines
Visually check for proper installation, chafing, cracks, deterioration and any leakage. Replace any deteriorated or damaged parts immediately. ...