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) 2018-2025 Service Manual: Cooling Fan Repair procedures
Removal and Installation Cooling Fan Assembly 1. Disconnect the battery negative terminal from the battery. 2. Remove the air duct and air cleaner assembly. (Refer to Intake and Exhaust System - "Air Cleaner") ...

Hyundai Kona (OS) 2018-2025 Owners Manual: Tire rotation
To equalize tread wear, HYUNDAI recommends that the tires be rotated every 12,000 km (7,500 miles) or sooner if irregular wear develops. During rotation, check the tires for correct balance. When rotating tires, check for uneven wear and damage. Abnormal wear is usually caused by incorrect tire p ...