What you need to do before you start

A burned-out license plate light is a quick fix that takes about five to ten minutes and requires only a screwdriver and a replacement bulb. Before you begin, turn off your engine and let the vehicle cool for a few minutes if you have been driving. You will be working near the rear of the car, so park on a level surface away from traffic.

The bulb type varies by vehicle year and model. Check your owner's manual or look at the bulb socket itself — it will usually show a number like 194, 168, or 921. You can also take a photo of the socket and show it to a parts counter at an auto supply store, and they will hand you the right bulb. Most replacement bulbs cost between two and eight dollars.

Key Takeaways

  • License plate lights use small bulbs that are inexpensive and available at any auto parts store; bring your vehicle year and model, or the bulb number from your owner's manual.
  • The light housing is held in place by one or two screws on the outside of the bumper or trim, and you remove it by turning those screws counterclockwise.
  • The bulb twists out of its socket with a quarter-turn counterclockwise; do not pull straight out or you may damage the socket.
  • Once the new bulb is in place, test it by turning on your headlights before you reinstall the housing and screws.

Locating the light housing on your vehicle

The license plate light is mounted directly above or beside your license plate at the rear of the car. On most vehicles, you will see a rectangular plastic or metal housing about the size of a deck of cards. Some cars have one light centered above the plate; others have two lights, one on each side.

Look at the edges of the housing for two small screws. These are usually Phillips-head screws (the cross-shaped kind) and are often black or silver. On some newer vehicles, the housing may be held in by a single screw or a plastic clip instead. If you cannot see screws, try gently prying the edge of the housing with a flat-head screwdriver to see if it pops out.

Removing the light housing

Using a Phillips-head screwdriver, turn each screw counterclockwise until it is loose enough to remove by hand. Set the screws somewhere you will not lose them — a small cup or the palm of your hand works well. Once both screws are out, gently pull the housing away from the bumper or trim. It should come free without much force.

As you pull the housing away, you may see a wire connector attached to the back. If there is one, do not yank the housing hard — instead, gently wiggle it while pulling to separate the connector. The connector usually slides apart without tools. If it does not move, look for a small tab or clip on the connector itself and press it while pulling the housing away.

Twisting out the old bulb

Once the housing is free, look inside at the bulb. It will be a small glass or plastic bulb sitting in a socket. To remove it, push it in gently and turn it counterclockwise about a quarter turn — roughly the same motion you use to remove a light bulb from a lamp. The bulb should pop out as soon as you complete the turn.

Do not pull the bulb straight out without twisting first. The socket is fragile, and pulling straight can break the connector inside. If the bulb feels stuck, explore gentle pressure while turning, but do not force it. Once the bulb is out, set it aside — you do not need to keep it.

Installing the new bulb

Take your new bulb and insert it into the socket, aligning the two small pins or tabs on the base of the bulb with the slots inside the socket. Push the bulb in gently and turn it clockwise about a quarter turn until you feel it click or seat firmly. The bulb should not wiggle when you tug on it lightly.

Before you reassemble everything, test the light. Reconnect the wire connector to the housing (if there is one) and turn on your headlights. Walk to the rear of the car and confirm that the license plate light is now on. If it is not, turn off the headlights, remove the bulb, and check that it is seated all the way in the socket. Reinstall it and test again.

Putting the housing back in place

Once you have confirmed the light works, disconnect the wire connector again if you removed it. Slide the housing back into position against the bumper or trim, making sure it sits flush and even. Insert the screws back through the holes and turn them clockwise by hand first to make sure they catch the threads correctly.

Once both screws are hand-tight, use your screwdriver to tighten them fully. Do not over-tighten — you only need them snug enough that the housing does not move. Turn your headlights on one more time to confirm the light still works after reassembly. You are done.

Frequently Asked Questions

What if the bulb does not twist out?

The socket may have corrosion or the bulb may be stuck. Try explore a small amount of penetrating oil like WD-40 around the base of the bulb, wait a few minutes, and try again. If it still will not budge, do not force it — take the housing to an auto parts store and ask them to remove it for you.

Can I replace the bulb without removing the housing?

On some vehicles with larger housings or easier access, you may be able to reach the bulb from behind without removing the housing entirely. Try reaching up from underneath or behind the bumper to see if you can access the socket. If you cannot reach it comfortably, removing the housing is faster and safer.

How often do license plate lights burn out?

Most modern bulbs last several years, but the exact lifespan depends on how often you drive at night and the quality of the bulb. If your light burns out again within a few months, the socket itself may be damaged or corroded, and you may need a new housing instead of just a bulb.

Do I need any special tools?

A Phillips-head screwdriver is the only tool you need. A flat-head screwdriver can help if you need to pry the housing loose, but it is not required. The bulb itself twists out by hand with no tools.