How to enable Auto Defog in a Kia EV4
Auto Defog coordinates the EV4 climate controls to clear the windscreen. The manual identifies its menu separately from ordinary fan adjustment, so use that entry when configuring the automatic feature.
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 Setup > Climate > Defog/Defrost options > Auto Defog. In the documented European sequence, the system enables A/C, selects fresh air, directs airflow to the windscreen and increases fan speed.
Before you start
Locate the option while parked. If visibility is already reduced, stop safely and clear the glass before continuing; configuring an automatic setting is not a substitute for seeing the road.
Follow these steps
Tick steps as you go. Your progress stays in this tab.
Check the result
A/C and higher fan output are part of the described defogging response. Those changes can therefore be expected during this operation. Check the actual windscreen rather than assuming a selected menu entry guarantees clear glass in every condition.
Common questions
Why does A/C run during defogging?+
The manual includes A/C in the automatic defogging sequence.
Which intake mode is documented?+
Fresh-air mode is selected for this response.
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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