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Mazda Mazda3 Dome Light Bulb Replacement Guide
How to change a burnt out overhead dome light bulb in a 2nd generation 2010-2013 Mazda Mazda3 with pictures.

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Paul B. Michaels
Author & Photographer
Auto Mechanic Since 1989

2012 Mazda3 Dome Light
Insert In To Notch At Front
Gently Pry Out Lens Cover
This automotive "how-to" guide was specifically written to assist owners of the second generation (2010, 2011, 2012 & 2013) Mazda Mazda3 in changing a burnt out overhead dome light bulb or upgrading it to a brighter LED unit.

Owners of other Mazda vehicles such as the Mazda2, Mazda5, Mazda6, MX-5 Miata, Mazdaspeed3, CX-5, CX-7, CX-9, MPV, Tribute, RX-8, Axela, Demio, Verisa, Premacy, and Atenza may also find these DIY instructions to be helpful.

A replacement "festoon" style dome light bulb is part number DE3175 from manufacturers such as Sylvania, GE, Eiko, Putco and PIAA.

You can also use a brighter DE3175 LED bulb.

The only tool needed to replace the dome light bulb is a small flathead screwdriver used to pry out the translucent plastic lens cover.

Lens Cover Removed
Old Dome Bulb Exposed
Pull Out Dome Light Bulb
To avoid scratching the plastic surfaces, you may choose to wrap the tip of the screwdriver in a thin micro fiber cloth.

Insert the blade of the small flathead screwdriver in to the notch at the middle of the front edge of the translucent plastic lens cover.

Gently pry out the lens cover and set it aside in a safe place.

Pull the old dome light bulb straight out of the socket.

Dome Light Bulb Socket
Bulb Part # DE 3175
Push In New DE3175


Push a new incandescent festoon style # DE3175 light bulb straight in to the socket.

You may also choose to install a brighter LED bulb such as the Putco 231125 1.25" stick.

New Bulb Installed
Slide Switch To "On"
Insert Rear Edge First
Slide the "Off / Door / On" switch to the "On" position to test the new dome light bulb.

Insert the rear edge of the lens cover in first.

Gently Pop In Front Edge
Lens Cover Replaced
Test New Dome Light Bulb
Then gently pop the front edge of the lens cover in place.

Slide the switch to the middle "Door" position so that the dome light will turn on whenever a passenger door is open.

For more, check out my other 2010-2013 Mazda Mazda3 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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