It’s easy to reset your Ford Explorer’s anti-theft system. Just turn the key in the ignition enough to switch the electrical system on, but don’t start up the engine. Keep the key in place for up to one minute so the system recognizes your key and resets.

The Ford Explorer enjoys numerous safety features, but if you accidentally set off the anti-theft system, you’ll quickly realize that pressing the panic button on the fob won’t disarm it. You will be able to turn off the flashing lights and silence the horn, but you won’t be able to turn on the engine!

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How to reset the Ford Explorer’s anti-theft system

You’ve got a few options for resetting your Explorer’s anti-theft system—the goal is to get your Explorer to recognize your key. These also work for turning off the alarm system, so it stops flashing and honking.

It’s actually pretty simple! Here’s one way to reset the anti-theft system:

Insert your Explorer key into the driver’s side door

Turn the key once, but not enough to unlock the door

Leave the key in place for 40 to 60 seconds—this gives the system time to recognize your key

Remove the key, get in the car, and start your Explorer’s engine

Another way to reset the system is to put your key into the ignition and turn it just enough to turn the electrical system on but not far enough to start the engine. If the anti-theft light flashes, leave the key in this position for two to three minutes. Then, you should be able to start the engine and be on your way!

If that doesn’t do the trick, check your Explorer’s battery. Some Ford owners even remove the battery and leave it out for an hour before putting it back. A dead or faulty battery connection can cause your anti-theft system to act up.

Unfortunately, if you don’t have the key to your Explorer, you won’t be able to reset the anti-theft system. Tow your Explorer to the Ford dealership, where they can reprogram the powertrain control module and get you a working key.

MORE:

Does renters insurance cover car theft?

What does the anti-theft system on a Ford Explorer do?

The Ford Explorer uses a Passive Anti-Theft System (PATS). It’s passive because it turns on automatically without you having to arm the system. The Ford Explorer system works after you turn off the car, take the key out of the ignition, and close all the doors.

If this doesn’t sound much like an alarm, trust us—it works! PATS is part alarm system and part engine immobilizer. If triggered, the system alerts you that someone is trying to steal your Explorer and it prevents the engine from starting, so the thief can’t drive off with your vehicle.

Don’t worry if you get in your Explorer and see the security light briefly flash. It’s normal for this to illuminate briefly when your ignition switch is in the on position, but the security light should turn off right away. If it flashes repeatedly, it’s a sign that PATS has been triggered.

PATS is also really clever! The alarm will go off if a thief tries to use an unrecognized key to get into your Explorer. Your vehicle only recognizes the keys that came with your Explorer. These keys are called transponder or chip keys and are programmed to work with your car.

How to program a new transponder key

If you want the reassurance of having a spare car key, you’ve got to program it so your Explorer recognizes it. Otherwise, the spare key will trigger the anti-theft system when you use it.

You’ll need two original Ford Explorer keys and a new spare key. Pick up a spare from a Ford dealer or locksmith. Once you’ve got your two original keys plus the spare, here’s how you program it:

Insert one of the original keys in the ignition and turn it to the on position. Keep it there for at least three seconds, but no more than ten.

Turn off the ignition and quickly remove the key.

Within three to ten seconds, repeat the process using the second original key.

Remove the second key and wait for another three to ten seconds.

Insert the new key and switch the ignition on. Keep the key in place for at least six seconds.

Now you can test out the programmed spare key. Try turning on the engine. If the engine starts without triggering the anti-theft system, you know it worked!

MORE:

How to build a custom Ford Explorer

What can trigger the Ford anti-theft system?

Not surprisingly, the anti-theft system goes off if anyone opens a door, the luggage compartment, or the hood without the key.

When the anti-theft system goes off, the bright indicator lights will flash, and the horn will honk repeatedly. You’ll have no doubt that something is wrong!

Sometimes, the anti-theft system goes off when someone’s not trying to steal your vehicle. Ford Explorer drivers note that a loud bang like a firework or thunderclap can set off the alarm. Here are a few other things that can trigger the anti-theft system:

Dead car battery

Damaged or broken door lock cylinder or handle

Failing transponder key battery

If your Ford Explorer’s anti-theft system keeps getting triggered and you can’t get to the bottom of what’s causing it, take your Explorer to the Ford dealership or ask a mechanic to use a diagnostic scan tool to find mechanical problems.

MORE:

How to protect your car key fob from damage or theft

Can the Ford Explorer anti-theft system lower your insurance rate?

The good news? You’ll often enjoy a lower insurance premium if your vehicle has an anti-theft device. Typically, the discount is between 5% and 25%!

The bad news? This discount only applies to

comprehensive coverage

, so if you’re just carrying liability insurance, you’re out of luck.

The Ford Explorer is already one of the most affordable Ford models to insure. While the trim level affects insurance rates (top-of-the-line TRD trim is the most expensive), maintaining your vehicle keeps it running in good shape. The Explorer also has standard driver-assistance features that help you stay safe—these can reduce the probability that you’ll have to make costly insurance claims.

If you’re concerned about protecting your brand-new Ford Explorer, shop for

new car replacement insurance

. This offers you complete peace of mind if you total your new Explorer and want a similar replacement.

MORE:

The best car anti-theft devices to keep your vehicle safe

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How to save on Ford Explorer insurance

There are always more ways to save on car insurance! Your insurance company might give you an extra discount on your comprehensive coverage for adding extra security features like an enhanced aftermarket active alarm system or catalytic converter strap.

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