Quick answer

Auto Defog senses windshield moisture and can automatically select fresh air, A/C, defrost mode and high fan speed.

Before you start

Check that your vehicle has it.

Availability

Dual automatic climate with auto defogger is standard on SEL, SEL Convenience, XRT and Limited, not SE.

Retail trim / version
SEL, SEL Convenience, XRT, Limited, SEL, SEL Convenience, XRT and Limited gasoline/ICE trims
Required equipment / service
Dual automatic climate control with auto defogger
Compatibility check

Does the documented scope match your car?

This check combines the verified year, any source-supported powertrain scope, source-named trim/package and required equipment. It does not read a VIN or factory build record.

Source-named equipment or service
  • Dual automatic climate control with auto defogger
Can you see the required control, menu or equipment on your vehicle?
Published availability and qualifications

Dual automatic climate with auto defogger is standard on SEL, SEL Convenience, XRT and Limited, not SE.

  • not SE
Visual orientation

Know what kind of control to look for.

This original category diagram is an orientation aid, not a picture of your exact trim. Use the written labels and your vehicle manual to identify the real control.

Lighting & visibility orientation diagram for Hyundai Tucson
Lighting & visibility orientationOriginal visual guide · controls vary by trim · not to scale
How to use it

Step by step.

  1. 01

    Use Vehicle > Climate > Defog/Defrost Options > Auto Defog to enable it.

  2. 02

    Alternatively, with the vehicle in ON, hold the front defroster button for three seconds.

  3. 03

    Six indicator flashes mean enabled; three flashes mean disabled.

!

Important limits

  • Operation may be limited below 14°F / -10°C. Do not force recirculation while Auto Defog is active; climate adjustments are temporarily overridden.
Owner feedback

What happened on your vehicle?

Your response is stored on this device. If you separately allow analytics, a non-account-linked guide/result event may also be measured. No VIN or personal information is requested.

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Primary evidence

Hyundai Owner's Manual — Auto Defogging System

Relevant section or page: 5-123. We use the written official source to determine the steps and applicability shown above.

View 1 supporting reference
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Editorial record

Reviewed with a visible trail.

Scope and steps were checked by Car Cheat Codes Editorial Review. A guide is narrowed or corrected when the source does not support a broader claim.

Published
Last modified
Source checked
Guide change history
  • Initial verified publication.
Editorial standardAll updatesSuggest a correction
Watch it in action Official manufacturer video

Defogging & Defrosting The Windshield | Hyundai

Video by HyundaiUSA. Official video states all 2018+ Hyundai models, if equipped. The written steps remain tied to the official source.

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