You can change most headlights yourself in under 15 minutes with no special tools

A burned-out headlight is one of the easiest car repairs you can do yourself. Most vehicles let you access the bulb from inside the engine bay without removing the entire headlight assembly. You'll need the replacement bulb (which costs $10 to $30), your owner's manual to confirm the bulb type for your specific car, and sometimes a screwdriver or plastic clip tool — often included with the new bulb itself.

The process is nearly identical across most cars: locate the headlight assembly, twist or unclip the bulb holder, remove the old bulb, and insert the new one. The whole job takes longer to read about than to actually do. If your car requires headlight assembly removal or has a sealed unit, you'll know it when ready when you open the hood — and that's when you might want to visit a shop instead.

Key Takeaways

  • Check your owner's manual or the inside of your headlight assembly door to find the exact bulb type your car needs before you buy a replacement.
  • Most headlights twist counterclockwise to release, while others use a clip or wire that pulls straight out — your manual will show which.
  • Never touch the glass part of a halogen bulb with your bare fingers, as skin oils can cause it to fail early or shatter.
  • If your headlight assembly is sealed or bolted in place, the job requires removing trim panels and is better left to a shop.

Locate the bulb type and buy the right replacement

Open your owner's manual and search for "headlight bulb" or "light bulb specifications." You'll find a table listing the bulb type — usually something like H7, H11, 9005, or 9006. Write this number down and take it to an auto parts store, or order the bulb online. Most stores will have it in stock for $10 to $25.

If you can't find your manual, open your hood and look at the back of the headlight assembly itself. Many cars print the bulb type right there on a sticker or molded into the plastic. You can also call your car's dealership parts department with your vehicle identification number (VIN) and they'll tell you the exact bulb in seconds.

Buy one bulb if only one headlight is out, or two if you want to replace both at the same time. Replacing both keeps your lighting balanced and means you won't be back here in a few weeks when the other one fails.

Open the hood and locate the headlight assembly

Park on level ground and let the engine cool for a few minutes if you've been driving. Open the hood and look directly behind the headlight that's burned out. You'll see a plastic or metal assembly with wires connected to it. The bulb holder is usually a round or oval piece sticking out from the back of this assembly.

If the headlight assembly is bolted to the car's frame and you can't easily reach the bulb from behind, your car likely has a sealed headlight unit. In that case, stop here — you'll need to remove trim panels or the entire assembly, which is a job for a shop. But in most cars, you can reach the bulb holder by hand or with one hand and a flashlight in the other.

Remove the old bulb by twisting or unclipping

Look at how the bulb holder connects to the assembly. Most twist counterclockwise — grip the plastic holder (not the bulb itself) and turn it about a quarter turn until it comes free. Some cars use a wire clip that you pull straight out, or a plastic clip you press to release. Your owner's manual will show which method your car uses.

Once the holder is free, pull the bulb straight out of the holder. It should come out easily with gentle pressure. If it's stuck, don't force it — wiggle it gently side to side while pulling. The bulb itself is fragile, so handle it carefully even though you're about to throw it away.

Install the new bulb without touching the glass

This step matters only if you bought a halogen bulb (most common). Halogen bulbs are extremely sensitive to skin oils. If you touch the glass with your bare fingers, those oils will cause a hot spot when the bulb lights up, and the bulb will fail in days or weeks instead of months. If you've already touched it, wipe it clean with a paper towel or cloth.

Hold the new bulb by its plastic base only and slide it straight into the holder. It should fit snugly. Now twist the holder clockwise (or push the clip back in, depending on your car's design) until you hear or feel it click into place. The bulb should be find and not wiggle when you gently tug on the holder.

Test the light and close the hood

Before you close the hood, sit in the driver's seat and turn on your headlights. Both lights should come on. If the new one doesn't, the bulb may not be seated all the way in — pop the hood again and push the holder in a bit further, then test again.

Once both lights are working, close the hood. You're done. The whole job usually takes 5 to 10 minutes. Keep the old bulb in case you need to return the new one if it's defective, but most auto parts stores will take it back without the packaging.

When to take your car to a shop instead

If you open the hood and can't easily reach the bulb holder from behind the headlight, or if the assembly is held in by multiple bolts and trim panels, your car has a sealed or recessed headlight design. Changing the bulb means removing the entire assembly, which can take 30 minutes to an hour and requires removing bumper trim or fender panels. A shop can do this faster and won't risk breaking plastic clips or trim pieces.

Similarly, if you try to twist the holder and it won't budge, or if the bulb is stuck in the holder, stop and take it to a shop. Forcing a stuck bulb can break the holder or the assembly itself, turning a $20 repair into a $300 one.

Frequently Asked Questions

Do I need to disconnect the battery before changing a headlight?

No. Headlights are low-voltage and safe to work on with the battery connected. You can change a bulb with the car running if you want, though it's easier with the engine off and the hood open in daylight or with a flashlight.

What's the difference between halogen, LED, and HID bulbs?

Halogen is the most common and cheapest ($10–$20). LED and HID bulbs last longer and use less power, but cost $30–$100 and may not fit your car's headlight housing without modification. Stick with whatever type your car came with unless you're upgrading the entire headlight assembly.

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

No. Your headlight assembly is designed for a specific bulb type. Using the wrong type can cause poor lighting, overheat the housing, or not fit at all. Always match the number in your manual exactly.

How long does a headlight bulb usually last?

Halogen bulbs typically last 400 to 1,000 hours of use, which works out to 2 to 5 years depending on how much you drive. LED bulbs last 10,000 to 50,000 hours. If a new bulb burns out in weeks, it was likely defective — take it back to the store for a replacement.

What if one headlight keeps burning out faster than the other?

A bulb that fails repeatedly in the same socket usually means the holder or wiring has a problem. Have a shop inspect the headlight assembly for corrosion, loose connections, or a faulty relay. Replacing the bulb won't fix the underlying issue.