Auto Security Essentials: A Short Guide On Car Immobilisers

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Michael Dunn, Wolverhampton

Auto Security Essentials: A Short Guide On Car Immobilisers

Immobilisers for cars; different coloured cars parked in a line

As you already know, integrating additional security features within your vehicle can help keep its insurance premium low.

While alarm systems, car trackers and other similar security products are the go-to option, a car engine immobiliser is an equally important feature that you cannot ignore. Not only does it help you keep your car secure but also ensures you save money in the long run!

However, when it comes to immobilisers for cars, there are some owners who might not know if their vehicle has one or not. This means you can end up shelling out more money than you have to.

There are also chances of some people not knowing what a car immobiliser is. If you’re one of them, you’ve come to the right place.

At BSWC Auto Security, we’ve put together this short guide on car immobilisers. By the time you reach the end of this blog, you’ll have a fair understanding of what immobilisers are, how they function and the benefits you can reap from its installation.

What Is A Car Immobiliser?

Immobilisier for Cars; hand holding a key fob with a black car in the background

A car immobiliser is basically an electronic device that’s installed within your vehicle to prevent its engine from working, unless the key fob or correct key is used.

Mechanically speaking, when the wrong key is used, the immobiliser will either disable your car’s fuel system, starter motor or ignition (the three primary components that start your car). When either of these are disabled, nobody can steal your vehicle.

This also means that your vehicle cannot be hotwired even if someone tries to break into it. Contact the team at BSWC Auto Security to get an immobiliser installed in your car.

Immobilisers for Cars – How Do They Function?

Interiors of the front half of a Mercedes

When you use your keys to start the car, the fob or key sends a unique code to your vehicle’s ECU (electronic code unit) which then allows the engine to start.

However, if you use the wrong key, your car’s immobiliser will be activated, preventing the ECU from receiving its unique code. This will also result in your car’s engine failing to start.

Since there are various types of car immobilisers available on the market, some of them require a manual code whereas others need a touch key. You’re also likely to come across modern immobilisers that can be activated using applications via a Bluetooth connection.

To find out which immobiliser would be perfect for your car, do speak with a professional vehicle security company.

How Can You Check If Your Vehicle Has An Immobiliser Installed?

Immobilisers for cars; two men sitting in the front seat trying to start the car

When it comes to checking whether your car has an immobiliser or not, there are a few ways that can help you.

First things first, if you’ve purchased a brand new car then it’s possible that it has a factory-fitted immobiliser. To confirm this, you can go through the car’s handbook as it covers every possible detail about your vehicle including the immobiliser.

However, if you’ve bought a secondhand car, it’s likely that the previous owner might have removed or disabled the immobiliser. Or better yet, they may have installed a replacement for the same.

This means, while your car might not have a factory-fitted immobiliser, it could still have one.

If you’re unable to check whether your car has an immobiliser or the handbook isn’t clear, seek assistance from a qualified mechanic or specialist from the vehicle security industry.

Different Types of Immobilisers for Cars

Different angle of the interiors of a Mercedes

As mentioned above, a factory-fitted immobiliser is considered to be the best option as it’s perfect for the purpose and is fitted by the manufacturer.

However, if your car doesn’t have a standard immobiliser, you can get one installed from a professional company like BSWC Auto Security. In such cases, it’s a safe bet to go for a Thatcham immobiliser.

Here are the five types of car immobilisers for your vehicle –

Combined Car Immobiliser and Alarm

The most sophisticated option available on the market, combined alarm and car immobiliers come with ignition and perimeter detection while also featuring glass break, tilt sensors and movement.

Since it comes with an alarm system installed, this immobiliser can also activate a self-powered siren in case someone breaks into your car.

Electronic Immobiliser

An electronic immobiliser belongs to the ‘immobiliser only’ category, as it doesn’t come with an installed alarm system.

What’s more, while this system needs to be passively set like the combined immobiliser, it also requires a separate vehicle control unit to ensure that your car runs efficiently.

Mechanical Immobiliser

Unlike the immobilisers for cars mentioned above, this mechanical system isn’t electric, meaning it’s a physical device that can disrupt the way your car operates.

Wheel Locking Devices

A wheel locking nut is a reliable and robust device, featuring a secure replacement procedure, resistance to attack and traceability.

Post-theft Tracking and Recovery System

By installing a post-theft tracking and recovery system in your vehicle, you can easily track its location in case it gets stolen. Moreover, you can immobilise your car remotely by simply restricting its engine’s functionality.

How Can Car Immobilisers Help With Your Insurance?

Immobilisers for cars; the door lock and unlock button

By installing an immobiliser in your car, you can significantly increase its security meaning it won’t be easy to steal your vehicle.

However, along with helping you prevent car theft, these systems can also reduce your overall premium for car insurance. Put simply, you can easily take care of your car while also ensuring you don’t burn a hole in your pocket!

Contact BSWC Auto Security for The Best Immobilisers for Cars

If your car doesn’t have an immobiliser installed or you’re looking for a replacement, then get in touch with our team today.You can either call us on 01902 403172 or drop an email at