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Mazda CX-5 Dome Light Bulbs Replacement Guide
How to change a burnt out dome / rear passenger reading light bulb in a 1st generation 2012-2016 Mazda CX-5 SUV.

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Dome / Rear Reading Lights
Pry Out Lens Cover
Lens Cover Removed
This automotive maintenance tutorial was specifically written to assist owners of the first generation (2012, 2013, 2014, 2015 & the refreshed 2016 model year) Mazda CX-5 SUV in changing a burnt out overhead dome / rear reading light bulb above the second row of passenger seats.

Owners of other Mazda vehicles such as the Mazda 2, Mazda 3, Mazda 5, Mazda 6, CX-7, CX-9, and the MX-5 Miata may also find these DIY instructions to be helpful.

A replacement festoon or "fuse" style bulb is part number DE3175 which is available from various manufacturers such as Sylvania, GE, Eiko and PIAA.

You can also use a compatible DE3175 LED bulb.

The only tool needed to change the bulbs is a small flathead screwdriver used to pry out the translucent plastic lens cover.

Old Bulb Exposed
Pull Out Old Light Bulb
Old # DE3175 Festoon
To prevent from scratching the plastic surfaces, you may want to cover the tip of your screwdriver with a thin micro fiber cloth.

Carefully insert the blade of the small flathead screwdriver in between the lens cover and the overhead housing near the front edge.

Gently pry out the two retaining clips on either side near the front edge. You may need to re-position your screwdriver.

If the old bulb was recently illuminated, be careful since it might still be hot enough to burn your fingers.

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

Empty Bulb Socket
Push In New # DE 3175
Re-Insert Plastic Tabs
Push a new # DE3175 festoon style bulb straight in to the socket.

(Tip - If you installed an LED bulb and it doesn't work at first, try flipping the bulb around in the socket.)

Test the new bulb by pressing the clear round plastic "On/Off" switch.

Line up the lens cover and re-insert the two plastic tabs on the rear edge.

Pop In Retaining Clips
Lens Cover Replaced
Test New Dome Light Bulb
Then gently pop in the two retaining clips on the front edge of the lens cover.

Test the new dome / rear reading light bulb again by pressing the rear edge of the lens cover.

For more, check out all of my Mazda CX-5 DIY Repair & Maintenance Guides.

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