How to Turn Off Your Car’s Alarm

Dustin Hawley | Jan 20, 2021

Modern cars are built with various alarm systems wired to go off automatically when they detect signs of an intrusion, such as a picked door lock, a broken window, or even a bumped windshield. But while these alarms can help prevent thievery, they can also sometimes go off on their own, causing an embarrassing incident or a sudden panic in the night.

turn off car alarm

In the worst possible cases, your alarm might continue to wail even after you’ve hit the alarm button on your car keys’ control fob. Let’s go over some of the ways you can turn off your car’s alarm when it won’t do so naturally.

Why Do Alarms Go Off Randomly?

Car alarms are often intentionally designed to be sensitive. In most safety equipment manufacturers’ eyes, it’s better to be safe than sorry, and a little late-night inconvenience is a small price to pay if it means your car isn’t stolen from the parking lot while you’re eating at a restaurant.

Still, some car alarms are built to be a little too sensitive. Others might accidentally trigger due to a power fluctuation in your car’s battery. Whatever the case, it’s essential to know how to turn off your car’s alarm ASAP when there’s no real danger.

Alarm Won’t Quit? Try These Methods

Let’s break down a few tricks you can try to shut off your car’s alarm if the regular process doesn’t work. Our guide assumes that you’ve already tried to shut off the alarm using your key fob (if you haven’t, try that first!).

Use Your Key and Both Lock And Unlock The Driver’s Side Door

Grab your keys and try unlocking and locking your driver’s side door multiple times in rapid succession. Some vehicles are wired so that their alarms go off when they detect certain doors opening. Locking and unlocking the driver’s side door can reset the switch and cause the alarm to cease.

If the driver’s side door doesn’t work, try the passenger door.

Further, try turning your vehicle on as well. Some vehicles’ alarms will cease once you ignite the engine – after all, the car won't detect that as a theft situation. In many cases, turning the engine on resets the alarm back to neutral.

Check The Panic Button

Try hitting the panic button on your key fob if you haven’t already. While the panic button is normally used to set off your alarm manually in the event of an emergency, this is an appropriate time to “abuse” it.

Panic buttons are easy to identify; they’re usually red or orange and are more often than not labeled with a horn.

What if the alarm is still going? In that case, let’s try some more technical solutions.

Before Anything Else, Check Your Owner’s Manual

The next solutions are a little more invasive and require you to be comfortable tinkering with your car and its parts. That’s why you should check your owner’s manual before doing anything else.

The manual might indicate that there’s a secret button or another little-known control you can press to turn off the alarm when it doesn’t stop screeching. While not incredibly common, some auto manufacturers include unique controls like this so that owners will head to licensed workshops and pay a fee to get the issue taken care of.

If your owner’s manual doesn’t indicate a way to turn off your alarm beyond what you’ve already tried, continue reading.

Remove The Alarm’s Fuse

You’ll need to locate the fuse responsible for your car alarm’s power. Fuses send electricity to different parts of your car, so removing the alarm’s fuse won’t stop power from the overall battery connected to your engine (remember, car alarms need to run when the engine is off, so they have a distinct fuse). 

The exact location of the fuse can differ from model to model. But it’s generally beneath the hood of your car. Check your owner’s manual and look for a picture or a diagram indicating the location of the alarm’s fuse box.

Take a pair of pliers and use them to remove the appropriate fuse. That should take care of the alarm in all cases except one (noted below) since the alarm won’t run without electricity.

Disconnect The Alarm Battery

In the event that you can’t find your alarm’s fuse, you can always disconnect your car battery. But disconnection is only recommended under the most extreme circumstances. You should only do so if you have the experience needed to be safe. Certain car models might not let you disconnect the battery without specialized tools found at licensed dealerships or maintenance shops.

Provided that your battery can be disconnected without special tools:

  • open your car’s hood
  • remove the negative terminal on your car battery. It will be marked with a minus (-) symbol
  • place the connecting terminal where it won’t touch the battery
  • re-establish the connection

By replacing the connecting terminal, you’ve essentially reset your car’s battery entirely. The alarm should stop now. If not, you’ll need to take your vehicle into a shop for a more detailed inspection and repair work.


Living with a car alarm incessantly whining can be both annoying and frustrating. We sincerely hope that one of the above methods works for your alarm system and can give you some peace and quiet!

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