en
0

Shopping Cart

closeCart
€0.00

How to Protect Your Car Key Fob from Relay Attacks

  • /
  • Blog
  • /
  • How to Protect Your Car Key Fob from Relay Attacks
Post Name
25.04.2025

Car theft has entered the digital age — and unfortunately, so have the thieves. As car manufacturers move toward keyless technology, a new type of threat has emerged: the relay attack. Unlike traditional break-ins, this high-tech method allows criminals to steal a vehicle without touching the keys — or even breaking a window.

Imagine this: your car is parked safely outside your house. Your key fob is inside, hanging on a hook by the front door. You're fast asleep. But outside, two individuals with small electronic devices are working together. One stands near your front door, scanning for a signal from your key fob. The other waits by your car. Within seconds, your key’s signal is captured, extended, and transmitted to your car. It unlocks, starts, and drives away — and you might not notice until morning.

This is not science fiction. It's called a relay attack, and it's one of the fastest-growing vehicle theft methods worldwide.

Why Relay Attacks Are So Effective

The key to this technique is exploiting the constant communication between your car and its fob. Most keyless entry systems are designed for convenience — you don’t even need to press a button. The car automatically detects the presence of the key fob and unlocks when you approach.

This convenience is exactly what makes it vulnerable. Relay devices — which are cheap, portable, and easy to use — can mimic the signal and trick the car into thinking the key is nearby, even when it’s inside your home.

Security experts have raised the alarm about this method for years, but many drivers still don’t realize how easily their vehicles can be accessed. In the UK alone, keyless car theft now accounts for more than 90% of vehicle thefts involving high-end models, according to the AA. And with the rise of online tutorials and black-market tools, the problem is growing globally.

So, What Can You Do to Stay Safe?

Fortunately, protecting your vehicle doesn’t require advanced tech or a huge investment — just awareness and a few smart habits.

One of the most effective ways to block relay attacks is also the simplest: store your keys in a signal-blocking container. Often called a Faraday pouch or Faraday box, this lined case prevents radio signals from escaping. When your keys are stored inside, they can’t be scanned or cloned, no matter how close a thief gets to your home.

Placement also matters. Many drivers leave their keys near the front door or on an entryway table — spots that are easy to access from outside. Moving your keys to the center of your home, an upper floor, or even a metal box can reduce signal exposure dramatically.

Some newer key fobs allow you to manually disable the signal when it’s not in use. This feature is often hidden in the manual and rarely mentioned by dealers. Taking a moment to learn whether your key supports this — and how to activate it — can make a big difference.

It’s also worth checking whether your vehicle’s software is up to date. Many automakers periodically release firmware updates that strengthen encryption or reduce signal range. In some cases, updates can even detect and block suspicious unlock attempts.

And while it may seem old-fashioned, physical security still works. Devices like steering wheel locks or gear shift immobilisers can be powerful visual deterrents. Even if a thief manages to unlock your vehicle, the sight of a bulky lock inside may be enough to send them looking for an easier target.

If you're looking for practical solutions beyond GPS, check out our blog: Do Car Keys Have GPS? What You Need to Know About Key Tracking.

In summary, here are a few key takeaways to keep your keys and vehicle safer:

Store your fob in a signal-blocking pouch or metal container

Keep keys away from entry points like doors or windows

Disable keyless signals if your fob supports it

Update your car’s firmware regularly

Use visible anti-theft devices as a deterrent

Looking Ahead: Smarter Cars, Smarter Drivers

Relay attacks are part of a larger trend — one where modern technology makes life more convenient, but also creates new risks. Just like we’ve learned to secure our phones and passwords, we now need to think about how we secure our vehicles.

As carmakers explore more secure solutions — like Ultra Wideband (UWB) tech and biometric verification — drivers still need to take responsibility for their vehicle’s safety. The tools are already out there, and many of them cost less than a meal out. It’s not just about avoiding theft; it’s about peace of mind.

So next time you get home, before tossing your keys on the hallway table, take a second to think: are they really safe there?

Related Posts

Cold Weather and Your Car Key Fob: What You Need to Know
08.01.2025

Cold Weather and Your Car Key Fob: What You Need to Know

As the temperature drops and winter approaches, it’s not just your car’s engine that needs extra attention. Your car’s key fob is also affected by the cold weather, and it’s important to understand how frigid temperatures can impact its performance. In this article, we’ll explore how cold weather can affect your key fob and what you can do to prevent it from causing you frustration during the colder months. How Cold Weather Affects Your Key Fob Key fobs are small electronic devices designed to make our lives easier. They allow us to lock, unlock, and start our cars without ever having to take the key out of our pocket or bag. However, like any electronic device, key fobs are sensitive to extreme temperatures. When the temperature drops, the battery inside the key fob can be affected. Cold weather causes the battery’s chemical reactions to slow down, which can lead to a reduced charge or even a complete failure to operate. If your key fob suddenly stops working or becomes unresponsive, it's likely due to the cold weather affecting the battery's ability to function properly. In addition to battery performance, the cold can also cause the internal components of the key fob to contract. This may interfere with the fob’s functionality, causing it to not respond when you press the buttons. Furthermore, moisture from snow, rain, or condensation can get into the fob, which can cause short circuits or further damage. Signs Your Key Fob May Be Affected by the Cold If you live in an area where cold temperatures are common, it’s essential to be aware of the signs that your key fob might be struggling with the weather. Here are some indicators that the cold is affecting your key fob: Unresponsive buttons : If you press the buttons on your key fob and nothing happens, it may be due to the battery or the internal components not responding correctly to the cold. Delayed reactions : If you notice a delay in your fob’s response, where the locks or alarm take longer than usual to react, this is another sign of cold-induced malfunction. Reduced range : If your key fob is working, but only from a very short distance, it could be due to the battery’s reduced performance in the cold. If you notice these issues, don’t immediately panic. There are simple fixes and preventative steps you can take to resolve the issue. What You Can Do to Protect Your Key Fob in the Cold Fortunately, there are several things you can do to ensure that your key fob continues to work properly during cold weather. By taking a few precautions, you can protect the battery and internal components of your key fob from extreme temperatures: Keep Your Key Fob Warm One of the easiest ways to prevent cold weather from affecting your key fob is to keep it warm. If you're going outside during cold weather, keep your key fob in your coat pocket or a warm, insulated area. You can even use a small pouch or key fob holder with insulation to protect it from the cold. Replace the Battery Before Winter If your key fob is already showing signs of battery issues, consider replacing the battery before winter hits. Even if it’s not quite dead yet, replacing the battery can help ensure that your key fob works smoothly during colder months. Many key fob batteries are easy to replace and can be done at home with a simple tool. Use a Backup Key If you anticipate being in extremely cold conditions or live in a particularly harsh climate, consider having a backup key. Many cars come with a traditional key hidden inside the key fob, which you can use if the key fob stops working in the cold. Having this backup can save you a lot of hassle if your fob stops working unexpectedly. Avoid Moisture Exposure It’s important to keep your key fob dry, especially in winter, when snow, rain, and condensation can cause moisture to build up inside. If your fob does get wet, dry it thoroughly as soon as possible and avoid leaving it outside in damp conditions. If moisture persists, it may cause the internal components to fail. Test Your Key Fob Regularly To ensure that everything is working properly, make a habit of testing your key fob regularly, especially during the colder months. If you notice any signs of malfunction early, you can address the issue before it gets worse. What to Do If Your Key Fob Stops Working If your key fob stops working despite taking preventative measures, don’t panic. There are a few things you can do: Warm up the Fob : Try warming up the fob by placing it in your pocket for a few minutes or rubbing it in your hands. This can help restore some functionality if the battery has slowed down due to the cold. Replace the Battery : If the fob still isn’t working, it may be time to replace the battery. A new battery can often resolve issues related to cold weather. Contact a Professional : If the fob continues to malfunction after changing the battery, it may be time to take it to a professional locksmith or the dealership to check for internal damage. While it’s easy to overlook the impact that cold weather can have on your car’s key fob, it’s important to understand the effects that extreme temperatures can have on its performance. By taking simple precautions and knowing the signs of potential issues, you can help ensure that your key fob continues to work smoothly throughout the colder months. From keeping it warm to regular maintenance, there are several ways to protect your key fob and avoid the frustration of a malfunction during the winter. So, this season, take a few extra steps to care for your key fob, and you’ll be able to unlock and start your car with ease, no matter how cold it gets outside.

How to Locate Your Key Code for a Replacement
20.08.2024

How to Locate Your Key Code for a Replacement

Losing a key can be a hassle, but the process of getting a replacement becomes much easier if you can locate the key code. The key code is a unique combination of letters and numbers that identifies the specific cut and type of your key. This code is essential for accurately replicating a new key, whether it’s for your car, house, or another type of lock. This guide will help you understand where to find your key code and what steps you can take if the code isn’t easily accessible. Why the Key Code is Important The key code is essentially a blueprint for your key. It tells a locksmith or dealer exactly how to cut a new key that will work with your lock. Without this code, creating a replacement key can be a trial-and-error process, which can be time-consuming and costly. Additionally, for certain types of keys, such as those for cars with transponder chips, the key code is necessary for programming the electronic components of the key. Step 1: Inspect Your Key and Lock The first and most straightforward step is to inspect your key and lock for the key code. For many keys, especially older models, the code is engraved or stamped directly onto the key itself. This is common with car keys, where the code may be found on the metal part of the key blade. In some cases, the code might be on the plastic casing of the key, especially if it’s a newer model with electronic components. If the key itself doesn’t have the code, check the lock. The key code is sometimes inscribed on the lock’s cylinder or on a small metal plate attached to the lock. This is more common with padlocks or specialized security locks. If you’re dealing with a door lock, you might need to remove the lock from the door to inspect it closely. Step 2: Review Documentation and Original Packaging If you can’t find the key code on the key or lock, the next step is to review any documentation or packaging that came with the key. For vehicles, the key code is often provided in the owner’s manual or on a key tag that was given to you at the time of purchase. This tag is usually small and easily misplaced, so it’s worth checking any old documentation or vehicle paperwork you might have. For other types of keys, such as those for padlocks, cabinets, or office furniture, the key code might be printed on the original packaging or on warranty cards. These are often overlooked, but they can be invaluable when you need a replacement key. Step 3: Contact the Manufacturer or Dealer If the key code isn’t visible on the key, lock, or documentation, your next step should be to contact the manufacturer or dealer. Most car manufacturers, for example, keep a record of key codes based on the Vehicle Identification Number (VIN). By providing your VIN to a dealership, they can usually retrieve the key code and either cut a new key for you or give you the information needed to get one cut elsewhere. For other types of keys, such as those for cabinets or padlocks, contacting the manufacturer can also be helpful. Provide them with details about the product, such as the model number and any serial numbers, and they may be able to provide the key code or a replacement key directly. Step 4: Professional Locksmith Assistance If you’ve exhausted all other options, a professional locksmith is your best bet. Locksmiths have specialized tools and knowledge that allow them to decode locks or determine the correct key code even when it’s not visible or available through documentation. They can often cut a new key based on the lock itself, bypassing the need for the original key code entirely. Locksmiths are particularly useful if you’re dealing with older locks, unique security systems, or if the key code is no longer accessible through traditional means. They can also help with programming transponder keys for vehicles, ensuring that your new key not only fits the lock but also communicates correctly with your car’s electronic systems. Additional Tips for Key Code Location Record Key Codes: If you find your key code, make sure to record it somewhere safe. This will save you time if you need another replacement in the future. Ask About Spare Keys: If you’re contacting a dealership or manufacturer, ask if they can provide a spare key at the same time, especially if you’re prone to losing keys. Consider a Key Tracking System: For those who frequently lose keys, consider investing in a key tracking system or a digital key organizer where you can store key codes and important information. Locating your key code is a crucial step in the process of replacing a lost or broken key. By carefully inspecting your key and lock, reviewing any relevant documentation, contacting the manufacturer or dealer, or seeking help from a professional locksmith, you can ensure that your replacement key is accurate and functional. Taking these steps not only saves time and money but also provides peace of mind in knowing that you have a reliable solution for key replacement.

How to Remove or Change a Roof Rack Lock Barrel Easily
15.11.2024

How to Remove or Change a Roof Rack Lock Barrel Easily

Changing or removing the lock barrel on your roof rack may seem like a daunting task, but it’s actually simpler than you might think. Whether you need a replacement due to a lost key, wear and tear, or just want to swap out an old lock for a new one, following the right steps can make the process hassle-free. This guide will walk you through everything you need to know about handling a roof rack lock barrel with ease. Why You Might Need to Change a Roof Rack Lock Barrel ? There are several reasons why you may want to replace or remove your roof rack lock barrel: Lost Key : If you've misplaced the key, replacing the lock barrel is often the most practical solution. Upgrading the Lock : Maybe you want a more secure lock for added peace of mind. Routine Maintenance : Over time, lock barrels can wear down, making it harder to insert or turn the key. Uniformity : If you've recently changed your car key, you may want to match your roof rack lock with it. Knowing why you’re changing the lock barrel will help you determine the steps you need to follow. What You’ll Need Before you start, gather these essential tools and items: Replacement Lock Barrel : Ensure it’s compatible with your roof rack model. Master Key or Removal Key : Often required to remove the old lock barrel. New Key : The key that corresponds to the replacement lock barrel. Flathead Screwdriver : To gently pry and release certain parts if needed. Step-by-Step Guide to Removing a Roof Rack Lock Barrel Removing a lock barrel from your roof rack doesn’t require extensive mechanical skills. Just follow these straightforward steps: 1. Locate the Lock Barrel The lock barrel is usually situated in the center or side of the roof rack. Look for the small lock with the keyhole, as this is where you'll be inserting the master or removal key. 2. Insert the Master Key or Removal Key If you have a master or removal key, insert it into the lock. This is often a universal key provided by the lock manufacturer specifically for removing lock barrels. Once it’s inserted, turn the key slightly to unlock the barrel. Tip: If you don’t have a removal key, contact a professional or see if you can order one specifically for your model. 3. Pull the Lock Barrel Out With the removal key still in place, gently pull the lock barrel out. If it’s resistant, try wiggling it slightly while pulling. Avoid forcing it, as this could damage the lock or roof rack. In some cases, you may need a flathead screwdriver to help pry it out, but be careful not to scratch the surrounding area. 4. Check the Casing After removing the lock barrel, inspect the casing where the barrel was installed. Make sure it’s clean and free of debris. Any dirt or rust could interfere with the new lock barrel, so it’s a good idea to clean this area before proceeding. Installing the New Lock Barrel Once the old barrel is removed, you’re ready to install the new one. Here’s how: 1. Align the New Lock Barrel Take your new lock barrel and align it with the casing where the old one was. Most barrels are designed to fit in only one direction, so make sure you align it properly to avoid jamming. 2. Insert the New Barrel Push the new lock barrel into the casing until it clicks into place. This might require a bit of pressure, but it should fit snugly without needing excessive force. 3. Test the New Key After installing the new lock barrel, insert the new key and turn it to ensure it’s working smoothly. The key should turn easily and lock securely. This step verifies that the new lock is properly aligned and functional. Common Challenges and Solutions While changing a roof rack lock barrel is generally straightforward, you might encounter some challenges. Here’s how to troubleshoot common issues: Stuck Barrel : If the old barrel is stuck, apply a lubricant like WD-40 around the lock to help loosen it. No Removal Key : If you don’t have a master or removal key, consider reaching out to a locksmith or checking if the manufacturer offers a replacement. Barrel Won’t Fit : Ensure you’ve purchased a compatible lock barrel. Even slight differences in design can prevent it from fitting properly. Tips for Maintaining Your Roof Rack Lock To keep your new lock barrel in good condition and prevent the need for frequent replacements, consider these maintenance tips: Regular Cleaning : Dirt and grime can accumulate inside the lock over time, making it harder to operate. Clean the lock regularly to prevent this. Use Lubricant : Apply a small amount of lubricant inside the lock barrel periodically to keep the key turning smoothly. Protect from Rust : If your roof rack is exposed to rain and humidity, use a protective cover or shield to keep moisture out of the lock barrel. Check Key Fit : Avoid using a damaged or bent key, as this can wear out the lock barrel more quickly. When to Seek Professional Help In some cases, removing or replacing a roof rack lock barrel might require assistance from a professional: Lost or Damaged Keys : If both your main key and master key are lost or damaged, a professional can help retrieve or replace the lock barrel. Damaged Lock Mechanism : If the lock itself is damaged or jammed, forcing it can make things worse. A professional locksmith can safely remove and replace it. Replacing or removing a roof rack lock barrel is an affordable and manageable task for most car owners. By following the right steps and keeping up with regular maintenance, you can ensure your roof rack lock stays functional and secure. Whether you’re upgrading for security or replacing a worn-out lock, a new lock barrel can make all the difference in keeping your roof rack safe. Effortless Key Replacement for a Variety of Locks Order 2x Union Keys FT Series, custom-cut to your original key code, for a hassle-free replacement. Compatible with a range of locks, including those from Aston Martin, Jaguar, Land Rover, and more, these keys are perfect for classic cars, caravans, petrol caps, roof racks, and truck canopies. Simply find your lock code (e.g., FT101-FT360) on the lock face and enjoy fast delivery of high-quality spare keys.

How to Choose the Right Car Key Shell for Your Vehicle + Why We Recommend Panasonic CR2032 Batteries
27.05.2025

How to Choose the Right Car Key Shell for Your Vehicle + Why We Recommend Panasonic CR2032 Batteries

Your car key is one of those things you don’t really think about — until it breaks. Whether it’s the worn-out buttons, a cracked shell, or a battery that gives up at the worst possible moment, an aging car key can cause more than just annoyance. But here's the good news: you can restore your key to like-new condition easily, affordably, and from the comfort of your home. In this complete guide, we’ll show you how to choose the right replacement key shell for your car and why the Panasonic CR2032 battery is a trusted choice to keep your key fob performing reliably. Part 1: How to Choose the Right Car Key Shell Think of your key shell as a protective layer. It shields the sensitive electronics inside — the buttons, circuit board, and transponder chip — all of which are essential to operating your vehicle. When the case begins to wear down or fall apart, it’s time to replace it. 1. Know Your Car's Make, Model, and Year Key shells are made to fit specific car models and years. For instance: Flip key shells for Opel are commonly used on models from 2010 to 2024. Audi smart key shells are dependent on the platform code (like A3 8Y or A4 B9). Consult your owner's manual or use a compatibility tool like this one to confirm fitment. 2. Match the Key Blade Blades come in various formats like HU162, VA2, or HU100. Even a slight variation in shape or groove pattern can render the key useless in your ignition or door locks. Carefully compare the blade on your current key to the one listed for any replacement shell. 3. Button Layout and Functionality Make sure the number and positioning of buttons on the replacement shell matches your original. If not, the rubber pads may not line up with the contact points on your key’s circuit board, making the buttons unresponsive. 4. Interior Design and Compatibility The outside might look the same, but inside layouts often differ. Ensure that your circuit board, battery slot, and chip all fit securely inside the new shell. Misalignment can cause rattling, failure to start the car, or buttons that don’t function correctly. 5. Material Quality Avoid very cheap replacements with thin plastic and soft rubber. A good quality shell should be durable, with solid construction and tactile buttons that don't wear out quickly. For example, this Opel flip key shell combines strength with excellent fit. Part 2: Why We Recommend Panasonic CR2032 Batteries When your key fob starts failing — maybe the range drops or it takes multiple presses to unlock — chances are the battery is low. Many car owners replace the shell without considering the battery, only to find the problem persists. Understanding the CR2032 The CR2032 is a 3-volt lithium coin battery, commonly used in remote keys and small electronic devices. It’s compact, stable, and specifically suited for low-power, long-term applications. What Makes Panasonic CR2032 Stand Out? Panasonic’s version of the CR2032 is known for its consistency and reliability. It offers: A stable voltage output, ensuring your key communicates with your car effectively Longer life compared to many generic brands Resistance to leaks, which protects internal circuits from corrosion Choosing a battery from a trusted manufacturer can save you from unexpected failures, especially in colder climates where battery performance matters most. We recommend the Panasonic CR2032 battery for its excellent balance of performance and reliability. Refreshing Your Car Key: A Practical Approach If your car key is showing signs of age, it's usually best to replace both the shell and the battery. The process is simple: Open the old shell carefully, using a flat tool if needed. Remove the circuit board, chip, and battery. Clean the components gently with a dry brush. Place them into the new shell, ensuring alignment. Insert a fresh CR2032 battery. Close and secure the new shell. After completing these steps, your key should be more responsive, look better, and feel sturdier in your hand.

Logo
More options Accept all Reject all
This website uses cookies

We use cookies to personalise content and ads, to provide social media features and to analyse our traffic. We also share information about your use of our site with our social media, advertising and analytics partners who may combine it with other information that you’ve provided to them or that they’ve collected from your use of their services.

Chat with us