How to Protect Keyless Entry Cars from Theft
- Top Motor Keys

- 19 minutes ago
- 15 min read
When it comes to protecting your car, it’s best to think in layers. You can start with simple habits, like popping your key fob into a Faraday pouch to block its signal, and add classic physical deterrents like a good old-fashioned steering wheel lock.
But for real peace of mind, you’ll want to look at more advanced aftermarket systems. A device like the Autowatch Ghost immobiliser can stop a thief from driving your car away, even if they manage to get inside.
The Rising Threat of Keyless Car Theft
We’ve all come to love the convenience of just walking up to our car and having it unlock. No more fumbling for keys in the rain. The problem is, this same technology has opened a massive security hole that criminals are getting very good at exploiting. Their go-to method is a clever and surprisingly simple trick called a relay attack.
A relay attack doesn't involve broken glass or fumbling under the dashboard. Instead, thieves use a pair of electronic gadgets to snatch the signal from your key fob, which you probably think is safely tucked away inside your house.
One thief will stand near your front door with a device that captures the fob's signal. Their partner waits by your car with the second device, which then "relays" that signal. Your car is fooled into thinking the key is right there. The doors unlock, the engine starts, and they can drive off in less than a minute.
How a Relay Attack Works in Seconds
It’s a disturbingly quick and silent process, usually happening in the dead of night while you're asleep. What's worse, the gear needed to pull this off can be bought online for just a few hundred quid, making it a low-risk, high-reward crime that’s driving a huge spike in car thefts across the UK.
This image shows just how simple the three-step process is for thieves.

As you can see, the whole trick is about amplifying your key fob's signal, essentially stretching its range from a few feet to hundreds.
The Scale of the Problem
This isn't just an isolated incident here and there; it's become the standard operating procedure for organised car thieves. In just one recent year, police in England and Wales recorded a staggering 375,048 vehicle thefts.
The Crime Survey for England and Wales (CSEW) paints an even clearer picture: a massive 58% of all car thefts were relay attacks. That's a huge jump from just 14% a few years ago. You can find more detail in these car theft statistics and trends.
This explosion in relay attacks points to a serious security flaw. While car makers are finally starting to introduce "sleeping" fobs that power down when they're not moving, there are millions of vulnerable cars on our roads. And it’s not just high-end luxury models getting pinched—popular family cars, work vans, and SUVs are all prime targets.
We saw a case in Sutton Coldfield where a homeowner woke up to find their Ford Fiesta ST gone from the drive. CCTV showed two people using a relay device to take it in under 60 seconds without a sound. The key was on a kitchen counter near the front of the house—too far to open the car normally, but a perfect target for the relay box.
This same story plays out every night in towns from Tamworth to Coventry. Knowing how to protect your keyless car isn't just a good idea anymore; it’s a crucial part of owning one. The good news is, you're not helpless. There are plenty of effective tools and simple habits you can adopt, and we're about to walk you through them.
Simple Security Habits That Make a Big Difference

Knowing how thieves can exploit your keyless entry system is half the battle. Now, let's talk about what you can actually do about it. The good news is that the most powerful first steps are often the cheapest and easiest to put into practice, forming the bedrock of your car's security.
You really don't need a massive budget to make a huge impact. Just by adopting a few new habits, you can immediately slash your risk of becoming another statistic. It all comes down to putting a few simple barriers—both digital and physical—between a would-be thief and your vehicle.
The Power of the Faraday Pouch
Your number one weapon against relay attacks is a Faraday pouch. This small, signal-blocking wallet is lined with a special metallic fabric that creates a "cage" around your key fob, stopping its signal from getting out. If a thief's relay box can't pick up your key's signal, their expensive kit is completely useless.
Think of it as a signal-proof vault for your key. No signal out means no signal to amplify and steal. Just be careful, because not all pouches are made equal. I've seen plenty of ultra-cheap ones online that have flimsy lining and provide a dangerously false sense of security.
Pro Tip: Always test a new Faraday pouch. Pop your key inside, seal it properly, and walk right up to your car. If the doors unlock, it’s not working. Send it back for a refund straight away.
A good pouch will make it seem like your key isn't even there. And don't forget the spare! Thieves don't care which key they clone, and that spare fob is often left unprotected in a kitchen drawer right by the front door—an easy target.
You can start putting these simple but effective measures into action right away. Here's a quick breakdown of the best options for immediate protection.
Immediate Security Measures for Your Keyless Car
This table gives you a quick look at the most effective and easy-to-implement security measures you can start using today.
Security Measure | How It Deters Thieves | Typical Cost (GBP) | Effectiveness Rating |
|---|---|---|---|
Faraday Pouch | Blocks key fob signal, preventing relay attacks. | £5 - £20 | ★★★★★ |
Steering Wheel Lock | A strong visual and physical barrier that requires time and noise to defeat. | £30 - £120 | ★★★★☆ |
Secure Parking | Parking in a garage or away from the house increases the distance for relay devices. | £0 | ★★★☆☆ |
Wheel Clamp | A highly visible and tough physical deterrent, ideal for long-term parking. | £40 - £150 | ★★★★☆ |
As you can see, a tiny investment of time and money can dramatically boost your car's defences, making it a much less appealing target for opportunistic criminals.
Strategic Parking and Awareness
Where you park your car matters just as much as how you store your keys. At home, thieves often scout for cars parked on driveways close to the front door or ground-floor windows. This gives them the shortest, strongest signal path for their relay devices to work.
If you have a garage, use it. It's the best defence there is. If not, try parking a bit further from the front of your house. Even just a few extra feet can be enough to weaken the signal and foil the attack.
When you're out and about, say at a shopping centre in Lichfield or Wolverhampton, just be aware of your surroundings. Always aim for well-lit spots with plenty of CCTV and people walking by. Thieves thrive in dark, quiet corners where they can work undisturbed. For more tips on this, our practical UK guide on how to prevent car theft goes into much more detail.
The Return of Old-School Deterrents
In this age of high-tech crime, it’s funny how old-school solutions are making a massive comeback. That's because visible, physical deterrents work on a very simple principle: making your car look like far too much trouble.
Steering Wheel Locks: A big, bright yellow steering lock is an instant red flag for thieves. They see it and immediately know they can't just hop in and drive away. They'd have to spend precious, noisy minutes cutting it off, attracting all sorts of unwanted attention. They'll almost always just move on to an easier target.
Wheel Clamps: They might be a bit more cumbersome to fit, but a wheel clamp is an incredible physical deterrent. It's perfect if you're leaving your car parked up for a while, like at an airport or train station.
These aren't just relics from the 90s; they are tried-and-tested security tools. A professional car thief's entire game plan relies on speed and stealth. A chunky steering lock completely ruins both, sending them a loud and clear message: "This car is protected, go bother someone else."
Upgrading Your Car with Advanced Security Tech

While the simple habits and physical deterrents we've covered are fantastic first steps, they mostly make your car a less convenient target. For owners in areas like Solihull or Burton Upon Trent who want real peace of mind, it’s time to think about a serious technological upgrade. These advanced aftermarket systems don't just put thieves off—they're designed to make stealing your car practically impossible.
Investing in a professional security system means shifting from basic defence to active prevention. You're essentially installing a digital fortress that works silently in the background, making high-tech theft tools like relay boxes and OBD programmers completely useless.
The Ultimate Defence: The Ghost-II Immobiliser
When it comes to stopping modern car thieves in their tracks, the Autowatch Ghost-II immobiliser is the gold standard. This isn't your typical noisy alarm or a chunky steering lock. The Ghost is a tiny, discreet device that’s wired directly into your vehicle’s CAN bus data network. This makes it completely invisible to thieves and undetectable by their diagnostic tools.
So, how does it actually work? The magic of the Ghost is its unique disarm sequence. To start your car, you have to enter a secret PIN code by pressing a specific combination of existing buttons—things like the controls on your steering wheel, dashboard, or centre console. It could be a sequence like volume up, cruise control, volume down, then a window switch.
Without that unique PIN, the engine simply will not start. A thief could have your cloned key, pull off a perfect relay attack, or even plug right into your car's OBD port—it makes zero difference. The car is completely immobilised until your sequence is entered.
This is exactly what makes it such a powerful weapon against keyless theft. It attacks the final, critical step of the crime: driving the car away. The engine is effectively bricked, leaving the thieves stuck, frustrated, and exposed on your driveway. You can find out more about the Autowatch Ghost immobiliser and see exactly how it works.
Thatcham-Approved S5 Trackers for Recovery
While the Ghost immobiliser is all about preventing the theft in the first place, an S5 tracker is your ultimate insurance policy for getting your car back if the worst happens. Imagine a scenario where thieves don't even try to drive your car. Instead, they use a low-loader truck to physically lift it and haul it away. This is where a tracker proves its worth.
An S5 tracker, the highest Thatcham-approved category, gives you:
Live GPS Tracking: See your car's exact location in real-time, right on your smartphone.
Driver ID Tags: The system knows who is supposed to be driving. If the car moves without one of the authorised tags nearby, an instant alert is sent to a secure 24/7 monitoring centre.
Police Liaison: The monitoring team will call you to confirm the theft, then work directly with the police, feeding them live location data to secure a swift recovery.
I remember a client in Coventry whose high-spec Range Rover was taken from a car park. The thieves towed it, bypassing the standard security. But his S5 tracker immediately sent an alert. Within an hour, the police had tracked it to a storage unit and recovered it before it could be stripped for parts or shipped abroad.
Combining Physical and Digital Security
The most secure cars have layers of protection. A Faraday pouch stops the initial signal theft, a steering lock is a clear visual warning, the Ghost immobiliser stops the engine from starting, and a tracker ensures recovery if the car is physically moved.
Don't forget to look beyond the car itself. Many homeowners in our service areas, from Nuneaton to Ashby de la Zouch, are now reinforcing their driveways. Installing robust physical barriers is a brilliant way to stop thieves before they even get near your vehicle. You can explore options like telescopic security posts to add another formidable layer of protection right on your property line.
By combining these advanced technologies, you create a multi-layered defence that covers every angle. You’re not just relying on one trick; you're building a comprehensive security plan that makes your car an exceptionally difficult target for even the most organised criminal gangs operating in areas like Birmingham or Walsall.
Putting Your Security Plan into Action
Knowing about Faraday pouches and Ghost immobilisers is one thing, but how do you actually use this stuff in your day-to-day life? Real security isn't just about the gadgets; it’s about building good habits and developing a bit of situational awareness until it all becomes second nature. Let's run through a few real-world scenarios you could easily face around the West Midlands.
Building a solid security routine for your keyless car is all about being proactive, much like the comprehensive cargo theft prevention strategies used in the haulage industry. It's simply about thinking ahead and spotting the risks before they turn into a real headache.
And you really do need to be thinking ahead. Keyless car theft has exploded across the UK. Shocking industry data reveals that over one in three vehicle thefts now exploit these keyless vulnerabilities. This has sent annual insurance payouts through the roof, a problem that groups like the Association of British Insurers (ABI) and the Office for National Statistics (ONS) are constantly highlighting. To see just how deep this problem runs, you can read the full report on wecovr.com.
Scenario One: The Crowded Birmingham Car Park
Picture this: you're driving into the city for the day and pull into a busy multi-storey car park in Birmingham. These places are absolute goldmines for thieves. The constant flow of cars and people gives them all the cover they need to scout for easy targets.
Your security checklist here needs to be quick and automatic:
Get the Physical Stuff on First: Before you even unbuckle your seatbelt, click that steering wheel lock into place. The visual impact is huge. A thief looking for a quick job will see it and just move on. It could save you from a smashed window, even if they can't actually steal the car.
Pouch That Key Immediately: The second you've locked your car, the fob goes straight into its Faraday pouch. Don't just chuck it in your pocket or handbag unprotected. All it takes is a "signal grabber" for a thief to clone your key's code as you're walking away.
Park Smart: If you have the choice, always try to park near a payment machine, the lift, or a well-lit stairwell. These high-traffic spots are far less appealing to criminals, who much prefer lurking in the dark, quiet corners.
Scenario Two: Suspicious Activity in Your Neighbourhood
You're at home on your quiet street in Coleshill or Atherstone. It's late, and you spot a car you don't recognise cruising slowly down the road, maybe pausing for a moment near your driveway. This is textbook scouting behaviour.
Here’s what to do:
Don't Ignore That Gut Feeling: Your instinct is often your best alarm system. Trust it. If you can do it safely from a window, try to get the car's make, model, colour, and even the registration.
Check Your Keys: Straight away, double-check that your main key and the spare are both tucked away in their Faraday pouches. Make sure they're stored well away from your front door or windows. A simple metal biscuit tin makes a surprisingly good backup storage box.
Report It: This part is so important. Call the non-emergency 101 number or use the online police reporting tool. Your small piece of information could be what helps the police connect the dots on a local theft ring operating everywhere from Cannock to Walsall.
Having a plan is about removing panic from the equation. When you’ve thought through these situations beforehand, your response becomes calm, logical, and effective.
Scenario Three: That "Cloned Key" Feeling
You’ve just finished your shopping in Sutton Coldfield. As you walk back to your car, you get that weird, nagging feeling that someone was standing just a bit too close to you in the queue. You start to wonder if your signal was compromised.
Even if you're not sure, it's always better to assume it was. Get home and immediately test your Faraday pouch to make sure it's still blocking the signal properly. If you've got a Ghost-II immobiliser fitted, you can relax—a cloned key is completely useless without your unique PIN code. If not, a moment like this is often the perfect nudge to consider adding that next layer of security and getting some proper peace of mind.
Finding a Trusted Local Auto Locksmith
When you're shelling out for a top-tier bit of kit like a Ghost-II immobiliser or an S5 tracker, the person fitting it is just as crucial as the device itself. Let's be clear: this isn't a weekend DIY job. You're dealing with advanced security that needs to be woven into your car's complex electronics.
A botched installation won't just leave your car vulnerable; it could create a whole host of electrical gremlins or even invalidate the system's Thatcham approval. That's a risk you don't want to take.
This is exactly why getting a professional, mobile auto locksmith on the job is the most important part of the upgrade. A certified installer makes sure every connection is spot-on, the device is hidden from prying eyes, and the whole system works perfectly from the get-go. That’s real peace of mind.
Why Professional Installation Is a Must
A proper auto locksmith does so much more than just connect a few wires. They know your vehicle's specific CAN bus network inside out, ensuring the immobiliser talks to the car's brain without causing any dramas with other systems. Crucially, they’re trained to hide the device in a place that even a seasoned car thief would have a nightmare finding.
Here’s what you should expect when you call in a pro:
They Come to You: The entire installation happens right on your driveway or at your workplace, whether you're in Tamworth, Lichfield, or Sutton Coldfield. No need to burn a day off or leave your car at a garage for hours.
A Full Rundown: Once it's fitted, the technician will give you a complete tour of the system. They’ll show you how to set and change your PIN and use handy features like Valet Mode.
Guaranteed Work: Any reputable installer will stand by their work with a solid warranty, giving you confidence that the job has been done to the highest possible standard.
Our Mobile Service Across the West Midlands
We know you need a local expert you can count on. Our mobile auto locksmith service is all about providing high-quality security installations across the region. We bring everything we need to secure your vehicle, wherever is most convenient for you.
A customer in Cannock recently got in touch, worried his new BMW was a prime target. We drove out and fitted a Ghost-II immobiliser on his driveway while he carried on working from home. The whole thing was done and dusted in under two hours, and he had a fully protected car without any fuss or disruption.
We're proud to help car owners in these areas:
Tamworth & Atherstone
Lichfield & Burton Upon Trent
Sutton Coldfield & Coleshill
Cannock & Walsall
Wolverhampton & Birmingham
Solihull & Coventry
Nuneaton & Ashby de la Zouch
Picking the right person for the job is absolutely vital for your car’s safety. For a bit more advice, take a look at our guide on finding reliable auto locksmith services near you for fast help. An expert installation really is the final, critical piece of the puzzle in protecting your keyless entry car.
FAQ: Your Keyless Security Questions Answered
We've heard just about every question there is when it comes to keyless car security. Here are the answers to the most common queries we get from drivers across the West Midlands.
Will a Ghost Immobiliser affect my car's warranty?
This is a very common concern. The simple answer is no; a correctly installed Autowatch Ghost-II will not void your manufacturer's warranty. The device is designed to integrate with your car's CAN bus system without cutting or altering the original wiring. It's a non-invasive installation. However, the key is professional fitting. An amateur installation could cause issues, which is why using a certified technician is essential.
Is a Faraday pouch enough to stop a relay attack?
A high-quality Faraday pouch is an excellent and highly effective first line of defence. When your key is sealed inside, it blocks the signal and stops a relay attack cold. But it only works when you use it correctly and consistently. Think of it as one important layer. For complete protection, combining it with a physical deterrent like a steering lock and a digital immobiliser like the Ghost provides a multi-layered defence that protects against different theft methods.
Can I just turn off my key's keyless function?
Yes, many modern car keys have a "sleep mode". This feature allows you to temporarily deactivate the keyless transmitter, meaning it no longer broadcasts a signal for thieves to capture. You can usually activate this by pressing a specific combination of buttons on your fob. Check your car's manual for instructions. This is a great free security measure, but the trade-off is losing the convenience of keyless entry, as you'll need to press a button to unlock the doors.
What’s the difference between a Ghost Immobiliser and a tracker?
This is a crucial distinction: prevention vs. recovery.
A Ghost Immobiliser PREVENTS the theft. Its sole job is to stop the engine from starting without a unique PIN entered via your car's existing buttons. If a thief gets in, they still can't drive away.
A Tracker helps with RECOVERY after the theft has already happened. It uses GPS to show the police where your car is, increasing the chances of getting it back.The most secure vehicles use both: the Ghost to stop drive-away theft and the tracker as a backup in case the car is physically towed away on a low-loader.
What happens if I forget my Ghost Immobiliser PIN?
Don't worry, you won't be locked out forever. When the Ghost is installed, you receive a unique Emergency Card containing a secure override code. If you forget your PIN, you can use this code to start the vehicle. Once running, you can then reset your PIN to something more memorable. It's vital to keep this card in a safe place, completely separate from your car keys, such as in your wallet or at home.
Ready to put a digital deadbolt on your vehicle? Top Motor Keys offers expert, mobile installations of Ghost-II immobilisers and S5 trackers across the West Midlands. Don't leave your car's safety to chance—get in touch for a free quote and some straightforward, professional advice.
