The basic steps to replace your tag light

A tag light (also called a license plate light) burns out like any other bulb on your vehicle. Replacing it usually takes 10 to 15 minutes and costs $5 to $20 for the bulb itself. Most vehicles have one or two lights mounted above or below the license plate, and you can reach them from outside the car without removing the plate.

The process is straightforward: locate the fixture, remove the old bulb, and install a new one. The exact steps depend on your vehicle's design — some fixtures twist out, others slide out, and a few require removing a small cover first. Your owner's manual will show you the specific method for your car, truck, or SUV.

Key Takeaways

  • Tag lights are accessible from outside your vehicle and do not require removing the license plate in most cases.
  • You need to know your vehicle's bulb type — usually listed in the owner's manual or on the fixture itself — before buying a replacement.
  • Most fixtures either twist counterclockwise to release or slide straight out, depending on the mounting design.
  • If the light still does not work after replacing the bulb, the issue may be a blown fuse or a wiring problem that requires a mechanic.

Locate the tag light fixture on your vehicle

Tag lights are mounted directly above or below the license plate, usually in a plastic or metal housing. Look at the back of your vehicle near the plate — you will see one or two small fixtures. Some vehicles have lights integrated into the bumper or tailgate, while others have separate housings that stick out slightly.

If you cannot see the fixture clearly, turn on your headlights and walk around the back of the car. The light will glow when powered on, making it easier to spot. Once you have located it, turn off the engine and let the light cool for a minute before touching it.

Identify the correct bulb type

Before you remove anything, you need to know what bulb your vehicle uses. Check your owner's manual — it will list the bulb type by name, such as 194, 168, 921, or W5W. These numbers refer to the bulb's size and base type. You can also look at the fixture itself; some housings have the bulb type printed on the back.

Once you know the type, buy a replacement at any auto parts store, drugstore, or online retailer. Bulbs cost between $3 and $15 depending on the type and brand. LED bulbs last longer than traditional incandescent ones but cost more upfront. Either type will work in your tag light.

Remove the old bulb

Most tag light fixtures use one of two removal methods. The first is a twist-out design: grasp the fixture housing and turn it counterclockwise about a quarter turn until it stops. The entire fixture will pull straight out, exposing the bulb socket. The second is a slide-out design: locate a small tab or notch on the fixture and gently pull the housing straight out.

Once the fixture is out, the bulb itself will either twist out or pull straight out depending on its base type. If it twists, turn it counterclockwise a quarter turn and pull. If it has a straight base, pull it straight out of the socket. Do not force it — if it feels stuck, wiggle it gently side to side while pulling.

Install the new bulb and reassemble

Insert the new bulb into the socket, making sure it sits fully. If the bulb twists in, turn it clockwise until it stops — do not over-tighten. If it has a straight base, push it in until you feel it seat. The bulb should not wiggle or come out easily when you tug on it gently.

Slide or twist the fixture housing back into place until it stops. You will hear or feel a small click when it is seated correctly. Turn on your headlights to test the tag light. It should glow steadily. If it does not, turn off the lights, remove the bulb again, and check that it is inserted fully and correctly.

What to do if the light still does not work

If you installed a new bulb and the light still does not turn on, the problem is likely not the bulb itself. The issue could be a blown fuse, a loose wire connection, or a faulty socket. Check your owner's manual for the location of the fuse box and the fuse number for the tag light circuit. A blown fuse will look dark or have a broken wire visible inside.

If the fuse is blown, replace it with one of the same amperage rating. If the fuse is fine, the wiring or socket may be damaged, which requires a mechanic to diagnose and repair. This is not a do-it-yourself fix and typically costs $50 to $150 depending on the problem and your vehicle.

Frequently Asked Questions

Can I use any bulb type in my tag light?

No. You must use the exact bulb type your vehicle requires. Using the wrong type may not fit the socket, may not produce enough light, or may draw too much power. Check your owner's manual or the fixture itself for the correct type number before buying a replacement.

Do I need to remove the license plate to change the tag light?

Not in most cases. The fixture is designed to be accessible from outside without removing the plate. If your vehicle has an unusual design, your owner's manual will tell you whether the plate needs to come off. Most people can complete the job without touching the plate at all.

How often do tag lights burn out?

Tag lights typically last 500 to 1,000 hours of use. Since they only turn on when your headlights are on, a bulb may last several years before burning out. LED bulbs last much longer — often 10,000 hours or more — but cost more upfront.

Is it illegal to drive with a burned-out tag light?

Yes, in most states. A burned-out tag light is a minor traffic violation that can result in a warning or small fine. More importantly, it makes your license plate hard to read at night, which can cause safety issues. Replace it as soon as you notice it is out.

What if the fixture itself is cracked or broken?

If the housing is damaged, you will need to replace the entire fixture, not just the bulb. Replacement fixtures cost $15 to $50 and are available at auto parts stores. Installation is similar to bulb replacement — the fixture usually twists or slides out, and the new one slides or twists back in. If you are uncomfortable doing this, a mechanic can install it in 15 to 30 minutes.