Hyundai Ioniq: Evaporative Emission Control System / Fuel Filler Cap. Description and operation
A ratchet tightening device on the threaded fuel filler cap reduces the chances of incorrect installation, which seals the fuel filler. After the gasket on the fuel filler cap and the filler neck flange contact each other, the ratchet produces a loud clicking noise indicating the seal has been set.

Replacement1.Turn ignition switch OFF and disconnect the negative (-) battery cable.2.Remove the filler-neck assembly(Refer to Engine Control/Fuel System - "Filler-Neck Assembly")3...
Other information:
Removal1.Disconnect the negative (-) battery terminal.2.Open the trunk, remove the right luggage side trim.(Refer to Body - "Luggage Side Trim")3.Remove the external amplifier after disconneting the connector (A) and loosening the mounting nuts.Installation1...
Your vehicle may be equipped with a Gentex Automatic-Dimming Mirror with a Z-Nav™
Electronic Compass Display and an Integrated HomeLink® Wireless Control System.
During nighttime driving, this feature will automatically detect and reduce rearview
mirror glare while the compass indicates the direction the vehicle is pointed...
Categories
Seat belt warning light

As a reminder to the driver, the seat belt warning light will illuminate and
warning chime will sound for approximately 6 seconds each time you place the Engine
Start/Stop button to the ON position if the seat belt is unfastened.
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