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2021 Santa Fe Headlight Condensation - Is this normal or a defect?

0

Mike T. · rep 0 · May 25, 2:05 AM · 1 replies · solved · Question

Vehicle: 2021 Hyundai Santa Fe Calligraphy

Hey everyone,

I purchased a new 2021 Hyundai Santa Fe Calligraphy about two years ago, and I've recently noticed persistent condensation inside the driver's side headlight assembly. It's not just a tiny bit; sometimes it's quite visible, especially after washing the car or on humid mornings. It usually clears up eventually, but it takes a while.

I'm concerned about potential long-term damage to the LED components or wiring, and it also affects the light output slightly. I've heard that some condensation can be normal due to temperature changes, but this seems excessive for a relatively new car. The passenger side headlight is completely clear.

Is this a common issue with the 2021 Santa Fe or other Hyundai models? Should I be worried, and is this something the dealership should address under warranty? Any advice on how to proceed would be great!

✓ Accepted solution

ClearTheCode Admin

ClearTheCode Team · rep 0 · May 25, 2:05 AM

0

ClearTheCode admin answer:

Condensation inside a headlight assembly on a newer vehicle like your 2021 Hyundai Santa Fe Calligraphy is a common concern for owners. While some minor, temporary condensation can be normal, persistent or excessive moisture is not and should be addressed.

  1. Understanding Headlight Condensation:

    • Normal: Headlight assemblies are not hermetically sealed; they have vents to allow for air pressure equalization and to dissipate heat generated by the bulbs. Under certain conditions (e.g., significant temperature changes, high humidity, car wash), moist air can enter, condense, and form a thin film of fog or a few small droplets. This usually dissipates within 15-30 minutes of the lights being on or the vehicle being exposed to dry air.
    • Abnormal: If the condensation is excessive (large puddles, significant fogging covering more than 50% of the lens), persists for several hours, or if there are actual water droplets rather than just fog, it indicates a problem. If only one headlight is affected, as in your case, it's a strong indicator of an issue.

  2. Potential Causes & Diagnostics:

    • Compromised Seal: The most likely cause is a compromised seal around the headlight assembly, a crack in the housing, or a damaged vent cap. This allows too much moisture to enter and get trapped.
    • Improper Installation: If the headlight was ever removed (e.g., for repair or bulb replacement), it might not have been reinstalled correctly, leading to a gap.
    • Manufacturing Defect: Since your vehicle is relatively new and only one side is affected, it could be a manufacturing defect in the assembly's sealing.

  3. When to See a Shop:

    • As Soon As Possible: Given that only one headlight is affected and the condensation is persistent and significant, you should take it to the dealership. This is not normal and could lead to:
      • Corrosion: Damage to internal wiring, connectors, or the LED modules.
      • Reduced Light Output: Impaired visibility, especially with advanced LED systems.
      • Electrical Shorts: Potential malfunction of the headlight or other electrical components.

  4. What to Expect: Your 2021 Santa Fe is well within its factory warranty period. The dealership will inspect the headlight assembly for signs of damage, cracks, or improper sealing. They may perform a leak test. If a defect is found, the headlight assembly should be replaced under warranty. Do not attempt to open or modify the headlight yourself, as this could void the warranty on that component.

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