Hyundai Kona: 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 would seal 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.

Fuel Tank Air Filter Repair procedures

Removal 1. Turn ignition switch OFF and disconnect the negative (-) battery cable. 2. Lift the vehicle. 3. Rem ...

Exhaust Emission Control System

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Other information:

Hyundai Kona (OS) 2018-2026 Owners Manual: Air bags
You can take steps to reduce the risk of being injured by an inflating air bag. Sitting too close to an air bag greatly increases the risk of injury in the event the air bag inflates. Move your seat as far back as possible from front air bags, while still maintaining control of the vehicle. WARNI ...

Hyundai Kona (OS) 2018-2026 Owners Manual: Operating precautions for catalytic converters
WARNING A hot exhaust system can ignite flammable items under your vehicle. Do not park, idle, or drive the vehicle over or near flammable objects, such as dry grass, paper, leaves, etc. The exhaust system and catalytic system are very hot while the engine is running or immediately after th ...