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: Inhibitor Switch
Description and operation
Description
•
The inhibitor switch mounted on the upper of transaxle and connected
with shifter lever.
•
The inhibitor switch has four points of contact and it makes the signals
(S1, S2, S3, S4). ...
Hyundai Creta GS 2014-2019 Service Manual: Fuel Sender: Repair procedures
Removal
1.
Remove the fuel pump.
(Refer to Fuel Delivery System - "Fuel Pump")
2.
Disconnect the fuel sender connector (A).
3.
Remove the fuel sender (A) after releasing the fix hook. ...