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: Overdrive Clutch Control Solenoid Valve (OD/C_VFS)
Description and operation
Description
•
Overdrive clutch control solenoid valve (OD/C_VFS) is attached to the
valve body.
•
This variable force solenoid valve indirectly controls the hydraulic
pressure inside the overdriv ...
Hyundai Creta GS 2014-2019 Service Manual: Smart Key Diagnostic: Repair procedures
Inspection
Self Diagnosis with GDS
Smart key system defects can be quickly diagnosed with the GDS. GDS operates
actuator quickly to monitor, input/output value and self diagnosis.
The following three features will be major problem in SMART KEY system.
1.
...