
The fuel filler door must be opened from inside the vehicle by pulling up the fuel filler door opener.
1. Stop the engine.
2. Pull the fuel filler door opener up.

3. Pull the fuel filler door out (1) to fully open.
4. To remove the fuel tank cap (2), turn it counterclockwise. You may hear a hissing noise as the pressure inside the tank equalizes.
5. Place the cap on the fuel filler door.
Fuel filler door
Closing the fuel filler doorHyundai Creta GS 2014-2019 Service Manual: Components and components location
Components
1. Rear bumper cover
2. Rear bumper side bracket [LH]
3. Rear bumper side bracket [RH]
...
Hyundai Creta GS 2014-2019 Service Manual: Immobilizer Control Unit: Repair procedures
Removal
1.
Disconnect the negative (-) battery terminal.
2.
Remove the crash pad lower panel.
(Refer to Body - "Crash Pad Lower Panel")
3.
Disconnect the connector of the immobilizer unit and ...