How to Fix a Car Horn That Won't Stop Blaring

There are two primary ways to shut off a jammed horn in a pinch - disconnecting the battery and removing the alarm’s fuse.
Written by Elan Mcafee
Reviewed by Carrie Adkins
When your vehicle’s horn gets jammed, you need to address the issue immediately. Unfortunately, it can be difficult to maintain a level head and take action with the noise and negative attention of those within hearing range.
car insurance
comparison and broker app
has you covered on what to do if your horn won't stop going off.

How to shut off a blaring horn by removing the fuse

Step 1: Locate a diagram of your fuse box

Check your
owner’s manual
for a key to the fuses in your vehicle’s fuse box.
If you do not have access to your manual, turn to the internet, searching for the make, model, and year your drive followed by the words "fuse box diagram."

Step 2: Find your physical fuse box

The diagram of your fuse box should indicate its location in your vehicle, but it's usually inside beneath the steering wheel or under the hood on the driver’s side.
Remove the cover and use the diagram to find the fuse associated with the horn.

Step 3: Remove the appropriate fuse

Look for a tweezer-shaped tool on the outskirts of the fuse box or beneath the cover.
Use that tool to pinch the top of the fuse the diagram indicates controls the horn, squeeze, and pull the fuse out.
If the horn continues to make noise, double check that you have removed the correct fuse.
Key Takeaway: First, use a diagram of your car's fuse box (available either online or in your owner's manual) to find its location in your car. Then use the included tweezer to pinch, squeeze, and pull out the horn's fuse.
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Fix your blaring horn by disconnecting the battery

Open the hood of your vehicle

Once you’ve popped the hood, visually locate your

Remove the negative lead from the negative terminal

Depending on the type of leads on your battery, you may need a pair of pliers to do this.
The negative lead is usually black, and both the lead and the terminal bear a "-" somewhere on them. Once you have disconnected the lead, place it in a spot where it will not accidentally touch the terminal.
There is no need to also disconnect the positive lead from the positive battery terminal.
  • Warning: If you disconnect the battery to shut off a jammed horn, you will not be able to drive to a
    repair shop
    . You can, however, have a
    tow truck
    take your vehicle to get the horn repaired.


How much does it cost to fix a car horn?

You can usually fix a car horn yourself, especially if you're comfortable with the wiring. However, you really shouldn't risk anything if you don't know how your car works under the hood. For mechanics, it's not too tricky of a process so you likely won't be spending more than $100.

Where can I find cheap car insurance?

Regardless of how smoothly your car horn works, it's always essential to have the right car insurance. For the best deal, try
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