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Hyundai Tucson Cargo Area Light Bulb Replacement Guide
How to change a burnt out cargo area light bulb in a 3rd generation 2016, 2017 and 2018 Hyundai Tucson SUV.

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2018 Tucson Cargo Area
Cargo Area Light Bulb
Insert Flathead Screwdriver
This automotive maintenance tutorial was specifically written to assist owners of the third generation (2016, 2017, 2018 plus the refreshed 2019 & 2020 model years) Hyundai Tucson SUV in changing a burnt out cargo area light bulb.

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.

You could also install a brighter DE3175 LED light bulb.

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

Pull Out Light Housing
Push In Release Tab
Disconnect Power Plug
The first two steps are to open the tailgate door and then move to the left (driver) side of the vehicle.

The cargo area light housing is attached to the plastic interior panel near the 12V accessory power outlet and the cargo net hook.

To prevent from scratching the plastic surfaces you can either cover your screwdriver with a thin micro fiber cloth or instead use a small plastic pry bar tool.

Insert the blade of the screwdriver into the notch at the top of the light housing.

Gently pry out the top of the light housing.

Pull the light housing out of the cargo area plastic panel.

Push in the release tab on the white plastic electrical connector before pulling it straight out of its socket.

Pry Off Lens Cover
Lens Cover Removed
Pry Out Old Light Bulb
Gently pry off the white plastic translucent lens cover with the flathead screwdriver.

Set the lens cover aside in a safe place.

Carefully pry the old light bulb straight out of the socket.


Old Light Bulb Removed
KHA12V10W 17L08J
Push In New Light Bulb
The old light bulb was marked as part number KHA12V10W 17L08J.

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

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

Tip - If you install an LED bulb and it doesn't work, try removing it from the socket, rotating it 180 degrees and then pushing it back into the socket. Some LED bulbs are "polarized" and will only work when the negative and positive electrical contacts are installed in the correct orientation.

Snap On Lens Cover
Push In Electrical Connector
Re-Insert Wires First
Gently pop the lens cover back into place over the black plastic light housing.

Push the white plastic power plug straight into its socket. You should feel or hear it "click" securely into place.

Then re-insert the wires at the bottom of the light housing back into the cargo area interior panel.

Pop In Retaining Clip
Light Housing Replaced
Test New Cargo Light
Gently snap in the retaining clip at the top of the light housing.

Double check that the light housing is securely in place and flush with the cargo area plastic interior panel.

If the new light bulb didn't turn on immediately when you plugged in the electrical connector, re-activate the interior lights by pressing the "Unlock" button on the key fob.

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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