Hyundai Ioniq: Evaporative Emission Control System / Fuel Filler Cap. Description and operation

Hyundai Ioniq (AE) 2017-2025 Service Manual / Engine Electrical System / Evaporative Emission Control System / Fuel Filler Cap. Description and operation

Description

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.

Fuel Tank Air Filter. Repair procedures

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...

Exhaust Emission Control System

Other information:

Hyundai Ioniq (AE) 2017-2025 Owner's Manual: Hybrid battery SOC (State of Charge) gauge

This gauge indicates the remaining hybrid battery power. If the SOC is near the "L (Low)" level, the vehicle automatically operates the engine to charge the battery. However, if the Service Indicator () and Malfunction Indicator Lamp (MIL) () turn on when the SOC gauge is near the "L (Low)" level, have the vehicle be checked by an authorized HYUNDAI dealer...

Hyundai Ioniq (AE) 2017-2025 Owner's Manual: Light Bulbs

Consult an authorized HYUNDAI dealer to replace most vehicle light bulbs. It is difficult to replace vehicle light bulbs because other parts of the vehicle must be removed before you can get to the bulb. This is especially true for removing the headlamp assembly to get to the bulb(s)...