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Hyundai Tucson Dome Light Bulb Replacement Guide
How to change a burnt out overhead dome light bulb in a 3rd generation 2016, 2017 and 2018 Hyundai Tucson.

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2018 Tucson Dome Light
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Insert Flathead Screwdriver
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Pry Out Lens Cover

This automotive maintenance tutorial was specifically written to assist owners of the third generation (2016, 2017, 2018 plus the updated 2019 and 2020 model years) Hyundai Tucson SUV in changing a burnt out overhead dome light bulb in the housing attached to the headliner above the rear passenger seats.

Owners of other Hyundai, Kia and Genesis vehicles such as the Santa Fe, Kona, Elantra, Sonata, Accent, Veloster, Ioniq, Nexo, G80, G90, Stinger, Rio, Forte, Optima, Cadenza, K900, Soul, Niro, Sportage, Sorento and Sedona may also find these DIY instructions to be helpful.

The compatible replacement festoon style light bulb is part number DE3175.

For a brighter dome light, install a DE3175 LED bulb.

The only tool needed to access and replace the bulb is a small plastic pry bar tool or a flathead screwdriver.

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Lens Cover Removed
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Old Light Bulb Exposed
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Pull Out Old Light Bulb
To prevent from scratching the plastic surfaces or ripping the fabric headliner, I recommend either covering the tip of your screwdriver with a thin micro fiber cloth or use a small plastic pry bar tool.

Insert the blade of your flathead screwdriver or plastic pry bar tool into one of the two notches on the rear edge of the lens cover.

Gently pry out the lens cover.

You may need to re-insert the tool into the other notch and pry again.

Try to avoid using excessive force. The lens cover should pop out relatively easily.

Set the lens cover aside in a safe place.

If the old light bulb was recently turned on, be careful when you remove it. The bulb might still be hot enough to burn your fingers.

Grasp the old light bulb with your thumb and forefinger before pulling it straight out of the socket.

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Old Light Bulb Removed
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Empty Bulb Socket
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Push In New Light Bulb
The OEM light bulb was marked as part number KHA 12V8W 47K18C.

Push a new number DE3175 light bulb straight into the socket.

If you would like to have a brighter dome light, install a compatible DE3175 LED bulb.



 

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New Bulb Installed
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Re-Insert Tabs - Front Edge
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Close Lens Cover
To test the new light bulb, press the "On / Off" switch.

If you installed an LED bulb and it doesn't work at first, try pulling out the old light bulb, rotating it 180 degrees and pushing it back into the socket.

Some LED bulbs are polarized and will only work when installed in the correct orientation.

Line up the lens cover with the overhead light housing.

First, re-insert the two small plastic tabs on the front edge of the lens cover.

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Pop In Lens Cover
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Lens Cover Replaced
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Test Bulb - On / Off Button
Then gently snap in the rear edge of the lens cover back into place.

Be sure to record the bulb change in your vehicle's service records.

For more, check out all of my 2016-2018 Hyundai Tucson DIY Repair & Maintenance Guides.
 

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