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Ford Mustang Fog Light Bulbs Replacement Guide
How to change a burnt out fog light bulb in a revised 5th generation 2010-2014 Ford Mustang with photo illustrated steps.

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2012 Mustang Fog Light
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Pry Up Center of Fastener
This automotive maintenance tutorial was specifically written to assist owners of the updated fifth generation (2010, 2011, 2012, 2013 & 2014) Ford Mustang in changing a burnt out fog light bulb in the front bumper.

Owners of the earlier 5th generation Mustang from 2005 to 2009 and possibly the 4th generation 1994 to 2004 models with similar fog light bulb housings may also find these DIY instructions to be helpful.

The OEM fog light bulbs in this 2012 Mustang GT are part number H10 (or 9145).

Most model years should use H11 bulbs. Please check the existing bulbs in your car before purchasing new bulbs. They might be H11, H10 (9145) or even H16 (5202) depending on the model year and/or trim level.

The only tool needed to replace the bulbs is a flathead screwdriver or a plastic pry bar tool used to pry out the plastic radiator cover.

Remove Black Plastic Rivet
Remove Other Fasteners
The first two steps are to pop open the hood and then move to the side of the vehicle with the burnt out fog light bulb.

Locate the round black plastic fasteners that hold the black plastic radiator cover in place.

Gently pry up the center part of each fastener first with the flathead screwdriver and then pull out the entire fastener.

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4 Right Side Fasteners Removed
Lift Up Plastic Radiator Shield
If you will only be replacing one fog light bulb, you can just remove four of the radiator shield fasteners on that side of the vehicle.

Gently lift up the radiator cover to access the rear of the fog light bulb housing.

Back of Fog Light Housing
Base of Old Fog Light Bulb
1/4 Turn Counter Clockwise
Reach in behind the fog light housing and rotate the base of the old bulb 1/4 turn counter clockwise.


Pull Out Old Bulb
Press Power Plug Release Tab
Pull Off Electrical Connector
Pull the old bulb straight out of the housing.

Press the release button on the electrical connector and slide it straight off the base of the old bulb.

Sylvania 9145 H10
Push On Power Plug
Insert New Bulb In Socket
Try to avoid touching the glass part of the new halogen bulb with your fingers or anything greasy in the engine bay.

If you do get the bulb dirty, wipe it clean with an alcohol moistened paper towel.

New Bulb Installed
1/4 Turn Clockwise - Lock
Push In Fasteners
Insert the new bulb in to the housing and rotate it 1/4 turn clockwise to secure it in place.

This 2012 Mustang GT had H10 (9145) OEM fog light bulbs.

Most fifth generation (2005-2014) Mustangs use the # H11 bulb.

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Pop In Center Piece
Lower the radiator cover back in place.

Re-insert the four black plastic fasteners and then pop their centers down to secure them in place.

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4 Fasteners Replaced
Test New Fog Light Bulb
Test the new fog light bulbs by turning on the headlights and then activate the fog lights.

For more, check out my other Ford Mustang Repair & Maintenance Guides.

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