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Kia Optima Trunk Light Bulb Replacement Guide
How to change a burnt out cargo area light bulb in the trunk of a 3rd generation 2011 to 2015 Kia Optima sedan.

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Paul B. Michaels
Author & Photographer
Auto Mechanic Since 1989

2013 Optima Trunk Light
Press Release Button On Right
Pull Out Light Housing
This automotive maintenance tutorial was specifically written to assist owners of the third generation (2011, 2012, 2013, 2014 & 2015) Kia Optima in changing a burnt out cargo area light bulb in the trunk.

Owners of other Kia and Hyundai vehicles with similar cargo area light housings such as the Forte, Cadenza, Rio, Soul, Sedona, Sorento, Sportage, Sonata, Accent, Elantra, Veloster, Azera, Tucson, Santa Fe and Genesis may also find these DIY instructions to be helpful.

A replacement "festoon" or "fuse" type bulb is part number DE3175 (31mm in length) from manufacturers such as Sylvania, GE, Eiko, PIAA and Amico.

You may also be able to use the slightly larger 6418 (35mm), 6411 (41mm) or a compatible LED unit.

No tools are needed to change the cargo area light bulb.

You may choose to use a small flathead screwdriver or a plastic pry bar tool instead of your finger nail to release the bulb housing.

Unplug Power Connector
Pull Back Metal Contact
Remove Old Bulb
Locate the small release tab on the right side of the trunk light bulb housing.

Press the release tab in towards the center of the housing and pull it straight down.

Then press the release button on the black plastic power connector and slide it straight off the housing.

Pull back the gold colored metal spring electrical connector to release the old bulb from the socket.

Old # DE3175 Bulb
Insert New # DE3175 Bulb
Push On Power Plug
Pull the old bulb straight out of the socket.

Insert a new # DE3175 bulb in to the fixed silver metal electrical contact first.

You can also use a brighter LED bulb.

Then pull back the flexible metal contact and insert the other side of the bulb.

If you use a slightly longer bulb such as the # 6418 (35mm), 6423 (36mm) or 6411 (41mm), you may need to carefully bend back the metal electrical contact to accommodate the larger bulb.

Push the power plug on to the end of the housing until it clicks securely in to place.

If the new bulb is working properly, it should light up as soon as you re-attach the power plug.

Re-Insert Wires First
Pop In Light Housing
Test New Trunk Light Bulb
Re-insert the wires on the left side of the housing in first and then gently pop in the retaining clip on the right side.

For more, check out my other Kia Optima Repair & Maintenance Guides.

If you found this guide to be helpful, please consider making a small donation by clicking on the "Donate" button located to the right of this paragraph. Thank you!
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