Replacing the tail light bulb on a 2012 Subaru Impreza is a straightforward DIY job that you can usually complete in about 15–30 minutes with a few basic tools. The process involves accessing the bulb socket from inside the trunk, removing the old bulb, and installing a new one of the correct type, then testing the light before finishing reassembly.
In this article, you’ll learn where the bulb sits, what bulb types are typically used on this model, the tools you’ll need, a step-by-step replacement procedure, and tips to ensure a safe and successful replacement. Always verify the exact bulb type by checking the old bulb or the owner’s manual for your trim and year, as bulb specifications can vary slightly by production run.
What you’ll need
Before you start, gather the items below so you can complete the job without interruption.
- Replacement bulb(s) matching your tail light housing type (common options include 3157, 3157A, or 7443; check the old bulb or the owner's manual for the exact specification).
- Gloves or a clean cloth to handle the new bulb (to avoid getting oils on the glass).
- Plastic trim removal tool or a non-marking flat-head screwdriver to lift interior panels gently.
- Flashlight for better visibility inside the trunk.
- Optional: small screwdriver if your model uses screws to secure the tail light assembly.
Having these items on hand helps prevent delays and reduces the chance of dropping small components inside the trunk area.
Replacement steps
Follow these steps in order to replace the tail light bulb. The steps reflect how the 2012 Subaru Impreza is commonly arranged, but if your car differs slightly, adapt as needed and consult the manual.
- Park the car, apply the parking brake, and turn off the ignition. Open the trunk and locate the interior tail light access panel on the side of the cargo area.
- Remove the interior panel or carpeting as needed to expose the tail light housing. Use a plastic trim tool to avoid scratching surfaces. You’re aiming to reach the bulb socket behind the taillight.
- Locate the bulb socket attached to the rear of the taillight housing. Gently twist the socket counterclockwise about a quarter turn (or until it unlocks) and pull the socket straight out from the housing.
- Carefully unplug the electrical connector from the back of the bulb. Then remove the old bulb by pulling it straight out of the socket.
- Inspect the socket and the wiring for any corrosion or damage. If needed, clean the socket with a dry cloth and replace any damaged components before installing the new bulb.
- Handle the new bulb with a clean glove or cloth. Insert the bulb into the socket, aligning the tabs, and push gently until it seats. Reconnect the electrical connector to the back of the bulb.
- Reinsert the bulb/socket assembly back into the tail light housing and rotate clockwise or twist as required to lock it in place. Reattach the exterior housing or panel you removed earlier.
- Test the new bulb before closing up: turn on the ignition and test the tail light, brake light, and turn signal (if the bulb serves multiple functions) to confirm proper operation.
If the light does not illuminate, recheck that the bulb is seated correctly, the wiring is connected, and the correct bulb type is being used. If multiple lights are out, check the vehicle fuse corresponding to the tail lights.
Testing and final adjustments
After installation, double-check that the interior panel fits snugly and does not rattle. Clean up any fingerprints or smudges from the lens area to ensure maximum brightness. If you notice condensation inside the lens after replacement, address sealing or venting as needed to prevent future issues.
Safety tips and troubleshooting
Working around the electrical system requires care. Always ensure the vehicle is off and keys are removed before starting. Avoid touching the glass part of the bulb with bare skin; oils can shorten bulb life. If you’re unsure about which bulb type to buy, bring the old bulb to a parts store or consult Subaru’s official documentation for your exact trim and production date.
In some late 2010s Subaru models, a few trims may require removing the entire taillight assembly to access the bulb, but for many 2012 Impreza models the process described above is sufficient. If you encounter any unusual fasteners or the bulb socket doesn’t release as described, consult the factory service manual or a professional mechanic.
Summary: Access the tail light from inside the trunk, replace the bulb with the correct type, reconnect, reassemble, and test. With careful handling and the right bulb, you can restore full function to your tail lights in a short session.
Can I replace a tail light bulb myself?
Changing your brake light or tail light bulbs is an easy maintenance task that you can usually perform on your own vehicle.
How to remove Impreza tail light?
And you turn it to lock it in place the other bulbs are very similar we'll do this one. Next. Turn it counterclockwise. Then you can pull the bulb right out to get it back in line up the tabs.
Are the brake light and tail light the same bulb?
Brake lights and tail lights may appear similar and often use the same bulb, but they serve distinct purposes.
What year to stay away from a Subaru Impreza?
Transmission Problems: Certain models of the Impreza, notably from 2012 to 2013 and in 2015, were prone to transmission failures. These problems ranged from gears shifting incorrectly to the car unexpectedly speeding up while in reverse or hesitating before lunging forward when the gas pedal was pressed.