WARNING
Never adjust the instrument cluster while driving. This could result in loss of control and lead to an accident that may cause death, serious injury, or property damage.

The brightness of the instrument panel illumination changes by pressing the upper or lower part of the switch when the ignition switch is in the ON position and when the parking lights are turned on.

If the brightness reaches to the maximum or minimum level, a chime will sound (if equipped).
Instrument cluster
GaugesHyundai Creta GS 2014-2019 Service Manual: Ignition Lock Switch
Specifications
Specifications
Item
Specifications
Working voltage
DC 12V
Operating force
Initial position : 0.25 ± 0.15N(0.025 ± 0.015kg, 0.056 ± 0.034lb)
Full position : 0.8 ± 0.2 ...
Hyundai Creta GS 2014-2019 Service Manual: Specifications
Specifications
Items
Specifications
Rated voltage
DC 12V
Operating voltage
DC 9 ~ 16V
Operating temperature
-30°C ~ 75°C (-4°F ~ 158°F)
Dark current
...