License plate bulbs burn out and need replacement, which you can do yourself in most vehicles

Your license plate light is a small bulb mounted above or below your plate that illuminates when your headlights are on. When it burns out, you have two options: replace it yourself or have a mechanic do it. Most people can handle this repair in under ten minutes with basic tools you likely already own. The cost of a replacement bulb ranges from $3 to $15, depending on the bulb type your vehicle uses.

A burned-out license plate light is a traffic violation in all 50 states. Police can stop you for it, and you may receive a citation. Some states allow you to fix it and show proof to the court to dismiss the ticket. The repair itself is straightforward enough that there is no reason to delay once you notice the light is out.

Key Takeaways

  • You can replace most license plate bulbs yourself using only a screwdriver or a socket wrench, taking about five to ten minutes.
  • The bulb type varies by vehicle year and model, so check your owner's manual or the existing bulb before buying a replacement.
  • Replacement bulbs cost between $3 and $15 and are sold at auto parts stores, big-box retailers, and online.
  • If you are uncomfortable working with your vehicle or the bulb housing is difficult to access, a mechanic can do the job for $20 to $50 in labor.

Locate the license plate light housing on your vehicle

The license plate light is mounted directly above or below your rear license plate. On most vehicles, it is a small rectangular or round fixture. Look at the back of your car at night with the headlights on to confirm the light is actually burned out — sometimes what looks like a burned-out bulb is actually a cracked lens that is still functional.

Once you have confirmed the light is out, examine how the housing attaches to your vehicle. Most housings are held in place by one or two screws, bolts, or clips. Some are glued in and require gentle prying. Your owner's manual will show you the exact location and attachment method for your specific vehicle, which saves time and prevents damage.

Remove the housing and identify the bulb type

Use a screwdriver or socket wrench to remove the fasteners holding the housing in place. Keep these screws or bolts in a small container so you do not lose them. Gently pull the housing away from the vehicle. You may need to disconnect a wire connector if the housing has one — this straightforward unplugs by hand.

Once the housing is free, look at the bulb inside. The bulb will have a number stamped on the base, such as 194, 168, 912, or 921. Write down this number or take a photo of it. This number tells you exactly which replacement bulb to buy. If you cannot read the number clearly, you can remove the old bulb by twisting it counterclockwise and take it with you to the store.

Purchase the correct replacement bulb

Take the bulb number to any auto parts store, or search for it online. Common license plate bulb types include 194, 168, 912, and 921, but your vehicle may use a different one. The staff at auto parts stores can look up your vehicle year, make, and model in their system and confirm which bulb you need if you are unsure.

Replacement bulbs are inexpensive and widely available. You can buy them at AutoZone, O'Reilly Auto Parts, NAPA, Advance Auto Parts, Walmart, Target, or Amazon. Some vehicles use LED bulbs instead of traditional incandescent ones — if your original bulb is LED, buy an LED replacement to match. LED bulbs last much longer and are worth the slightly higher cost.

Install the new bulb and test the light

Insert the new bulb into the socket by pushing it in and twisting clockwise until it stops. Do not force it — the bulb should seat smoothly. If it does not, remove it and check that you have the correct bulb type. Once the bulb is seated, reconnect any wire connectors you unplugged earlier.

Slide the housing back into place and reinstall the screws or bolts. Tighten them firmly but do not overtighten, as this can crack the plastic housing. Turn on your headlights to confirm the license plate light now illuminates. If it does not, remove the housing again and check that the bulb is fully seated in the socket.

When to take your vehicle to a mechanic instead

If the housing is difficult to access, cracked, or held in place by glue rather than fasteners, a mechanic can handle the job more safely. Some vehicles have housings tucked behind bumpers or trim pieces that require removing other components first. A mechanic has the tools and experience to do this without damaging your vehicle.

The labor cost for a mechanic to replace a license plate bulb typically ranges from $20 to $50, depending on how difficult the housing is to reach. This is still a minor repair and should be quick. If you are not confident in your ability to do it yourself, paying a mechanic is a reasonable choice and protects your vehicle from accidental damage.

Frequently Asked Questions

Can I drive with a burned-out license plate light?

Technically you can, but it is illegal in all states. Police can stop you for it and issue a citation. The repair is so inexpensive and quick that it is worth doing right away rather than risking a ticket.

What if I buy the wrong bulb?

Most auto parts stores accept returns on bulbs if they are unused and in original packaging. If you installed the wrong bulb and it does not work, remove it and take it back to the store with your receipt. They will exchange it for the correct type at no cost.

Do I need to disconnect the battery before replacing the bulb?

No. License plate bulbs operate on low voltage and pose no shock risk. You do not need to disconnect the battery or take any special safety precautions beyond turning off your headlights before you start.

How long does a license plate bulb last?

Traditional incandescent bulbs last 500 to 1,000 hours of use, which typically means one to three years depending on how often you drive at night. LED bulbs last 10,000 to 50,000 hours and may outlast your vehicle. The longer lifespan of LED bulbs makes them worth the extra cost.

What if the housing is cracked or the lens is cloudy?

A cracked or cloudy lens reduces light output and may not pass inspection in some states. You can replace just the lens on some housings, or replace the entire housing assembly. Check your owner's manual or ask an auto parts store whether your vehicle allows lens replacement or requires a full housing swap.