You can change most headlight bulbs yourself in 15 minutes without tools

A burned-out headlight is a safety problem and a legal one — you can be pulled over for it. The good news is that replacing the bulb yourself costs $10 to $30 and takes less time than a trip to a repair shop. You will need to know which type of bulb your car uses, access the back of the headlight housing, and twist or slide the old bulb out. The exact steps depend on your vehicle's make and model, but the process is the same across most cars built in the last 20 years.

Some vehicles have headlights that are harder to reach — a few require removing the wheel well or bumper trim — but even those are manageable if you have basic patience and a flashlight. A few luxury or newer cars use sealed LED headlight units that cannot be serviced at home, and those do require a shop visit. Before you start, check whether your car falls into that category.

Key Takeaways

  • Find your bulb type in the owner's manual or by searching your vehicle's year, make, and model online — common types are H7, H11, 9005, and 9006.
  • Open your hood, locate the back of the headlight housing, and turn or pull the bulb holder counterclockwise to remove it.
  • Replace the old bulb with a new one of the same type, handling it by the base only to avoid oils from your skin damaging the bulb.
  • Test both headlights before driving to confirm the new bulb works and the old one was actually the problem.
  • If the headlight still does not work after replacing the bulb, the issue is likely a fuse or wiring problem that requires a mechanic.

Find your bulb type before you buy

The bulb type is printed in your owner's manual under "Headlight Bulb Specifications" or a similar heading. If you do not have the manual, search online for "[your year] [make] [model] headlight bulb type" — you will find the answer in seconds on a parts retailer's website or a forum. Write down the type code: common ones are H7, H11, 9005, 9006, and D2S.

Buy the replacement bulb before you start work. A standard halogen bulb costs $10 to $20 at any auto parts store, Walmart, or online. If your car uses HID (high-intensity discharge) or LED bulbs, the cost is higher — $30 to $100 — and you may want to have a shop install it instead. The bulb package will tell you which side of the car it fits; buy the correct one, or buy a pair if both are old.

Open the hood and locate the headlight housing

Park on level ground in daylight or good light. Open your hood and look directly behind the headlight that is burned out. You will see a plastic or rubber housing with wires connected to it. This is the back of the headlight assembly. On most cars, the bulb holder is a cylinder that sticks out from the housing, and you access it by reaching in from behind.

If the housing is blocked by other engine components — the battery, coolant reservoir, or air intake — you may need to move them slightly or remove a trim panel. Check your owner's manual for your specific car; some models require removing the wheel well liner or a bumper section. If access is very tight, a flashlight and a mirror can help you see what you are doing.

Remove the old bulb

Grasp the bulb holder — the plastic or rubber cylinder connected to the wires — and turn it counterclockwise about a quarter turn. It should come free in your hand. On some cars, you push in slightly while turning. If it does not budge, do not force it; stop and check your manual to confirm you are turning the right component.

Once the holder is out, look at how the bulb sits inside it. Most bulbs twist out with a quarter turn counterclockwise. A few slide straight out or have a wire clip you need to unhook. The bulb itself is fragile, so work slowly. If the old bulb is clearly burned out — the filament is broken or blackened — you have found your problem.

Install the new bulb

Handle the new bulb by its plastic base only. Do not touch the glass or metal parts with your bare fingers; skin oils can damage halogen bulbs and cause them to fail early or burn out. If you do touch the glass, wipe it with a clean, dry cloth before installing it.

Insert the new bulb into the holder the same way the old one came out — usually by twisting clockwise until it stops, or by sliding it straight in. Do not force it. Once the bulb is seated, push the entire holder back into the headlight housing and turn it clockwise until it clicks or stops. You should feel it lock into place.

Test the headlight before you drive

Close the hood and sit in the driver's seat. Turn on the headlights and confirm that the new bulb is working. If it is not, turn off the lights, open the hood again, and check that the bulb holder is fully seated in the housing. Reseat it and test again.

If the light still does not work, the problem is not the bulb. A burned-out fuse, a broken wire, or a faulty switch could be the cause. At that point, a mechanic can diagnose the issue faster than you can troubleshoot it yourself. Do not drive with a headlight out; it is unsafe and illegal.

When to take your car to a shop instead

Some newer cars have LED headlight units that are sealed and cannot be serviced at home. If your manual says the headlight assembly must be replaced as a whole, or if the bulb is not accessible without removing major engine components, a shop is the right choice. The same goes for HID or xenon bulbs, which require special handling and sometimes a ballast replacement.

If you have tried replacing the bulb and the light still does not work, or if you are uncomfortable working under the hood, a shop visit is worth the cost. A mechanic can diagnose the real problem in minutes and fix it correctly.

Frequently Asked Questions

Can I use a different bulb type than what the manual says?

No. Using the wrong bulb type can cause poor lighting, damage the housing, or create a fire hazard. The bulb type is engineered for your car's headlight design. Stick with what the manual specifies.

Do I need to replace both headlights at the same time?

Only if both are burned out. If only one is dark, replace only that one. However, if one bulb is old and dim, replacing both at the same time ensures even lighting and saves you a second trip under the hood later.

What if the bulb holder is stuck and will not turn?

Stop and do not force it. Apply a small amount of penetrating oil like WD-40 around the seam, wait 10 minutes, and try again. If it still will not budge, a shop can remove it without breaking the housing.

Is it safe to drive with a headlight out?

No. You cannot see the road as well, and other drivers cannot see you. It is also illegal in most places. Replace the bulb or have it repaired before your next drive.

Why did my new headlight bulb burn out so quickly?

If you touched the glass with your bare fingers, skin oils can shorten the bulb's life. Wipe it with a clean cloth before installing. If the bulb burned out within days and you did not touch it, the problem is likely a wiring issue or a faulty switch, not the bulb itself.