How to change the brake light in a 2013 Elantra?

The brake light on a 2013 Hyundai Elantra is replaced by changing the bulb in the rear tail-light assembly from inside the trunk. It’s a doable DIY task for most drivers with basic tools.

In this guide, we cover the steps to replace the outer tail-light bulb and address the center high mount brake light (CHMSL) if your model uses a replaceable bulb. The exact bulb type can vary by trim; many Elantra models use a dual-filament bulb in the outer taillight. The CHMSL, if incandescent, may have a separate bulb behind the rear window or center brake light housing, while some trims use LED modules that aren’t user-serviceable. Always confirm bulb type before purchasing a replacement.

What you’ll need

Gather the appropriate tools and a replacement bulb before starting. The outer taillight bulb is typically a dual-filament type, often compatible with 3157 or 7443 specs. The CHMSL, if incandescent, will require a separate bulb if replacement is possible.

• Replacement bulb for the outer taillight (verify whether your car needs 3157, 7443, or another dual-filament bulb by inspecting the existing bulb or consulting the owner’s manual).


• Gloves or a clean cloth to handle the new bulb (to avoid skin oils on the glass).


• Flat-head screwdriver or trim removal tool (for panel access, if needed).


• Phillips screwdriver (if screws are used to secure panels).


• Flashlight or phone light for visibility inside the trunk.


• Optional: replacement gaskets or covers if the lens panel requires reseating.

Having these items on hand helps ensure a smooth replacement and reduces the chance of damaging wiring or trim pieces.

Replacing the outer taillight bulb

The following steps describe accessing and replacing the bulb in the outer rear taillight assembly. Follow them in order to avoid damaging clips or wiring.

• Open the trunk and locate the rear side where the taillight assembly resides. Gently push back the trunk liner or sound-deadening material to expose the back of the taillight housing.


• Identify the circular or square bulb socket connected to the taillight. If there is a protective cover, remove it by releasing any tabs or twisting as directed by the panel design.


• Disconnect the electrical connector from the bulb socket by pressing the release tab and pulling it away from the socket.


• Grip the bulb socket and turn it counterclockwise to release it from the taillight housing. Pull the socket straight out to expose the bulb.


• Carefully remove the old bulb from the socket by pulling it straight out. Avoid touching the glass with bare hands; if contact occurs, wipe the bulb with a clean cloth.


• Install the new bulb into the socket, ensuring it sits firmly and aligns with the retaining pins. Reinsert the socket into the taillight housing and twist clockwise to secure.


• Reconnect the electrical connector to the bulb socket. Test the brake light by pressing the brake pedal with the ignition in accessory or on, then verify the light illuminates correctly.


• Replace any protective covers, reinstall the trunk liner or panels, and close the trunk.

Once the bulb is replaced, it’s smart to test both the brake and tail light functions to confirm proper operation and to ensure the replacement bulb is in the correct orientation.

Center high mount brake light (CHMSL) considerations

Many 2013 Elantra models have a CHMSL at the top of the rear window or in the trunk lid. The ability to replace this bulb varies by trim and design. Some CHMSLs are incandescent bulbs behind a dedicated housing, while others are LED modules that are not user-replaceable and require a full assembly replacement.

Before attempting CHMSL work, determine whether your CHMSL uses a replaceable bulb or an LED module. If your vehicle has an incandescent CHMSL, use these steps; if it’s LED, consider professional service or replacement of the entire CHMSL assembly.

• Inspect the CHMSL housing to determine if there is a replaceable bulb behind a small lens or access panel.


• If incandescent: remove any trim or cover that holds the CHMSL in place, typically via screws or clips. Carefully detach the wiring harness.


• Replace the CHMSL bulb with the correct type, reattach the wiring, and reseal the housing. Reassemble any trim pieces.


• Test the CHMSL by pressing the brake pedal and confirming the center light illuminates along with the outer taillights.


• If the CHMSL is LED: replacement usually involves replacing the entire third brake light assembly or consulting a dealer for service.

Note: If you’re unsure about the CHMSL type, consult the owner’s manual or a Hyundai service manual for your exact trim, or contact a professional to avoid damage to the lens or electrical system.

Summary

In most cases, changing the brake light on a 2013 Elantra means replacing the outer taillight bulb from inside the trunk. Confirm the correct bulb type (often a dual-filament 3157 or 7443) before purchasing. Access the light by removing the trunk liner, disconnect the socket, replace the bulb, and reassemble. Check the operation of the brake and tail lights after installation. The center high mount brake light may be incandescent or LED depending on trim; incandescent bulbs can be replaced behind a small panel, while LED CHMSLs frequently require a full assembly replacement or professional service. When in doubt, refer to the owner’s manual or seek assistance from a qualified technician to ensure proper function and safety.

Can I replace my brake light myself?

In most cases, you can simply twist the bulb socket slightly counterclockwise to remove. Install the new bulb. Apply a pea-sized drop of dielectric grease to the bulb, then insert into the socket. Re-attach the tail light housing.
Ask More

What brake light bulb does a 2013 Hyundai Elantra take?

Replacement Light Bulbs

How do I change my Hyundai Elantra brake light?

Then reinstall the plug and lock it back in place. Put your tail light assembly back on the car and reconnect everything like it was before you got into the. Situation.

How to replace Hyundai Elantra brake light 2013?

Out. Um it's really easy to do again a little harder uh with one hand. But basically There you go so that's the bulb. That you're going to be replacing.