How to set automatic air ventilation in a Kia EV4
The EV4 can change from recirculated air to fresh air after extended recirculation in low temperatures. Its Auto dehumidify setting helps explain an intake change you did not request manually.
Checked against the MY2027 English owner manual for this model on 27 October 2026. Equipment and software can differ; use the instructions and controls fitted to your own vehicle.
Open Settings > Vehicle > Climate > Automatic ventilation > Auto dehumidify and enable or disable the function. The manual describes a fresh-air change after 30 minutes or more of recirculation in low-temperature conditions.
Before you start
Use the infotainment setting while parked. This article covers the automatic ventilation option, which has its own menu entry; compare the exact wording on your software version.
Follow these steps
Tick steps as you go. Your progress stays in this tab.
Check the result
An intake change can be expected when the stated low-temperature and prolonged-recirculation conditions apply. Monitor visibility as well as comfort; a selected intake preference should never distract from keeping the windows clear.
Common questions
Does it always change to fresh air after 30 minutes?+
The manual ties this behaviour to extended recirculation at low temperature.
Could the menu wording change?+
Yes. Kia notes that infotainment menus can change after software updates.
SOURCES & SCOPE
Where this guide comes from
Written from the official references below. Reviewed on 27 October 2026. This is a source-based guide, not a claim of hands-on vehicle testing.
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