Keyless car theft, also known as relay theft or signal scanning, is a growing concern for car owners. Criminals are using sophisticated technology to bypass traditional car security systems, targeting vehicles with keyless entry. This guide, brought to you by carcodepro.com, your trusted auto repair experts, will explain how this type of theft works and, more importantly, detail effective methods on How To Protect Car Keys From Being Scanned, ensuring your vehicle remains safe.
What is Keyless Car Theft?
Keyless car theft, often referred to as relay theft or relay crime, is a method where thieves exploit the technology of “keyless entry” systems. Instead of breaking into your car physically, they capture and amplify the signal emitted from your car key fob. This allows them to unlock and start your car as if they had the key present, all without ever needing to touch your actual keys.
Keyless Car Theft – How It Works (Step-by-Step)
Understanding the process of keyless car theft can highlight its simplicity and the importance of preventative measures. Here’s how it typically unfolds:
Step 1: Signal Acquisition. A thief, positioned near your house or where you typically keep your car keys (even inside your home near doors or windows), uses a device to scan for and capture the radio signal emitted by your key fob.
Step 2: Signal Relay. This captured signal is then relayed to a second device, often held by an accomplice standing close to your car.
Step 3: Vehicle Deception. The receiving device amplifies and transmits the relayed signal towards your vehicle. This fools the car’s system into believing that the legitimate key fob is nearby.
Step 4: Unauthorized Access. Thinking the key is present, the car unlocks its doors and disengages the immobilizer. The thieves can then enter the vehicle and start the engine, usually with just the push of a button.
This entire process can be alarmingly quick, often taking as little as 20-30 seconds for skilled thieves.
Cars with keyless entry systems are particularly vulnerable to relay theft, emphasizing the need for robust key protection strategies.
Are You at Risk? Identifying Keyless Entry Cars
Not all cars are vulnerable to this specific type of theft. If you need to physically press a button on your key fob to unlock your car, your vehicle is not at risk of keyless car theft via signal relay.
Keyless entry systems are characterized by their convenience: they allow you to unlock and start your car without ever taking the key fob out of your pocket or bag. Typically, you can unlock the doors simply by approaching the car and pulling the door handle, and start the engine with a push-button start system once inside.
If your car operates in this manner, it’s equipped with a keyless entry system and is potentially susceptible to relay theft, making it crucial to understand how to protect your car keys from being scanned.
How to Protect Your Car Keys from Being Scanned: Effective Prevention Methods
Protecting your car from keyless theft involves disrupting the thieves’ ability to capture and relay your key fob’s signal. Here are several proven methods you can implement:
1. Use a Faraday Bag (Signal Blocking Pouch)
One of the most effective and straightforward methods to protect car keys from being scanned is using a signal blocking pouch, also known as a Faraday bag. These pouches are designed with a metallic lining that creates a Faraday cage, effectively blocking electromagnetic fields, including the radio waves emitted by your key fob.
By placing your key fob inside a Faraday bag when you’re at home, work, or anywhere the keys are not in immediate use, you prevent thieves from capturing its signal. These pouches are readily available online and at auto accessory stores at a relatively low cost, starting from around £5.
A car key fob securely inside a signal blocking Faraday pouch, preventing keyless car theft. Image provided by Solon Security.
2. Disable Keyless Fob Wireless Signal (If Possible)
Some keyless fobs come with a feature that allows you to manually deactivate the wireless signal transmission. This is often referred to as “sleep mode” or “standby mode.” Consult your vehicle’s owner manual to check if your key fob has this capability and learn how to activate it.
Typically, this might involve a sequence of button presses on the fob itself. When activated, the fob will cease transmitting its signal, rendering it unable to be scanned until you manually reactivate it. This can be a very effective way to protect car keys from being scanned when you are at home or in a safe location. If you cannot find instructions in your manual, contact your car manufacturer for assistance.
3. Employ Physical Security Measures: Steering Wheel Locks and Car Alarms
While technology is at the heart of keyless car theft, traditional physical security measures still play a vital role in deterring criminals.
Steering wheel locks are a visible deterrent. They physically lock the steering wheel, making it impossible to steer the car even if thieves manage to start the engine. In an age where many car thieves rely on electronic methods, a mechanical barrier can be surprisingly effective. Look for steering wheel locks with “Sold Secure” or similar third-party approvals, ensuring they have been tested against common theft tools.
Car alarms, especially those with loud sirens and immobilizers, can also deter thieves. While some sophisticated thieves might attempt to disable alarms, they add another layer of complexity and risk for them. If your car doesn’t have a factory-fitted alarm, consider installing an aftermarket system. Inform your car insurance provider, as an approved alarm system may also reduce your insurance premiums.
A bright yellow steering wheel lock securely fitted to a car steering wheel, a visual deterrent against car theft.
4. Secure Parking: Garage or Strategic Driveway Parking
Where you park your car can significantly impact its vulnerability to keyless car theft. Parking inside a garage is ideal as it adds a physical barrier and increases the distance between your car and potential thieves trying to scan your keys from outside your home.
If a garage isn’t available, consider parking defensively on your driveway. Park as close to your house as possible, making it harder for thieves to get close enough to your house to scan your key signal. Also, consider enhancing your home security with motion-sensor lights and CCTV cameras, which can deter criminals and provide evidence if theft is attempted. If street parking is your only option, choose well-lit areas.
5. VIN Etching for Vehicle Identity Protection
VIN (Vehicle Identification Number) etching involves permanently etching your car’s VIN, or at least the last seven digits, onto the windows and sometimes headlights and mirrors. While VIN etching doesn’t directly prevent keyless car theft, it makes your car less attractive to thieves.
A VIN-etched vehicle is harder to resell because altering or removing the etched markings is difficult and costly. This acts as a deterrent, as thieves prefer cars that can be quickly and easily resold or stripped for parts.
6. Keep Your Car Tidy and Valuables Hidden
This is general car security advice but still relevant. Keeping your car interior tidy and free from visible valuables reduces the incentive for any type of car theft, including keyless theft. Thieves might be less inclined to target your car if they can’t see any easily accessible items of value.
Hide any electronic devices like GPS units, phone mounts, and chargers. Consider keeping your glove box empty and even leaving it open to show there’s nothing of value inside. Also, remove suction cup marks from your windshield, as these indicate the presence of GPS devices that may be stored in the car.
7. Secure Lost Car Keys and Reprogramming
Losing your car keys can create a security vulnerability, whether through traditional theft or keyless methods. If you lose your car keys, it’s crucial to act quickly. Contact a certified auto locksmith immediately. They can not only replace your lost keys but also reprogram your car’s system to ensure the lost keys can no longer be used to access or start your vehicle. This prevents thieves, even if they find your lost keys, from using them to steal your car.
A close-up of a hand holding a set of car keys, symbolizing the vulnerability of lost or stolen keys.
8. Reprogram Used Car Keys
When buying a used car, you might not receive all sets of keys. For security peace of mind, especially with keyless entry vehicles, it’s wise to have the car keys reprogrammed by an auto locksmith. This ensures that any keys held by previous owners are no longer valid, preventing potential unauthorized access. While reprogramming can incur a cost, it’s a worthwhile investment in security, especially when compared to the value of your vehicle.
A car locksmith professionally reprogramming a car key, highlighting the importance of key security for used vehicles.
Car Models Vulnerable to Keyless Car Theft
Unfortunately, a wide range of car models with keyless entry systems are susceptible to relay theft. Popular models like the Ford Fiesta, Volkswagen Golf, Nissan Qashqai, and Ford Focus have been identified as being at risk.
Research conducted by organizations like the General German Automobile Club (ADAC) has highlighted the widespread vulnerability. In one study, ADAC tested 237 keyless cars and found that a staggering 230 could be unlocked and started using relay theft techniques.
Thatcham Research, a UK-based automotive research center, introduced a security rating system for keyless entry cars to assess their resistance to relay attacks. Their tests provide valuable insights into which models offer better protection.
Keyless Car Theft Test Results: Passed and Failed Models by Thatcham
In 2019, Thatcham conducted relay attack tests on various keyless entry car models. Here are the models that PASSED and were given a Superior Security Rating:
| Keyless Entry Vehicle Model | Pass Or Fail | Security Rating |
|---|---|---|
| Audi e-tron | Pass | Superior |
| BMW 1 Series / 7 Series / 8 Series | Pass | Superior |
| BMW X6 / X7 | Pass | Superior |
| Ford Puma | Pass | Superior |
| Jaguar XE | Pass | Superior |
| Land Rover Evoque | Pass | Superior |
| Mercedes B-Class | Pass | Superior |
| Porsche 911 | Pass | Superior |
| Porsche Macan | Pass | Superior |
| Volkswagen Passat | Pass | Superior |
Conversely, the following models FAILED the Thatcham tests and received a Poor Security Rating, indicating a higher vulnerability to keyless car theft:
| Keyless Entry Vehicle Model | Pass Or Fail | Security Rating |
|---|---|---|
| DS3 Crossback | Fail | Poor |
| Ford Mondeo | Fail | Poor |
| Kia ProCeed | Fail | Poor |
| Lexus UX | Fail | Poor |
| Hyundai Nexo | Fail | Poor |
| Mazda 3 | Fail | Poor |
| Toyota Corolla | Fail | Poor |
| Toyota RAV-4 | Fail | Poor |
| Volvo V60 | Fail | Poor |
This testing data is crucial for consumers to understand the security risks associated with different keyless entry vehicle models.
FAQ: Protecting Your Car Keys from Scanning
Does putting car keys in a tin block the signal?
Yes, a metallic tin may block the signal. Metal can act as a Faraday cage to some extent. However, the effectiveness can vary depending on the thickness and completeness of the metal enclosure. For reliable signal blocking, a purpose-designed Faraday bag is a more consistent and recommended solution to protect car keys from being scanned. If you consider using a tin, test it thoroughly to ensure it effectively blocks your key fob signal.
Where should I keep my car keys at night?
The best practice is to store your key fob inside a Faraday bag or pouch and place it as far away from doors and windows as possible. This minimizes the risk of thieves capturing the signal, even if they use sophisticated scanning equipment.
Will My Car Insurance Cover Keyless Car theft?
Most comprehensive car insurance policies will cover theft, including keyless car theft. However, insurers may require proof that you still possess all sets of keys issued with the vehicle. It’s crucial to check your policy details and confirm with your insurer to understand your coverage in case of keyless car theft. Keeping records of your keys and security measures taken can be beneficial in the event of a claim.
Are Car Manufacturers doing anything to Prevent Keyless Car Theft?
Yes, car manufacturers are increasingly aware of keyless car theft and are implementing preventative measures. Some, like Kia, are providing Faraday bags to customers. Manufacturers like Ford, BMW, Audi, and Mercedes have introduced “motion sensor key fobs.” These fobs deactivate after a period of inactivity, typically around 40 seconds, preventing signal relay when the keys are stationary. As technology evolves, more advanced security measures are expected to be integrated into keyless entry systems.
Are Vans also at threat to Keyless Theft?
Yes, vans are also vulnerable to keyless theft. Reports indicate a rise in keyless van thefts, with models like the Ford Transit being particularly targeted. Van owners with keyless entry systems should apply the same preventative measures as car owners to protect car keys from being scanned.
What is the future of Relay theft?
The automotive industry and law enforcement are actively working to combat relay theft. Car manufacturers are developing more secure keyless systems, and police are increasing efforts to tackle vehicle theft. However, as technology advances, thieves will likely adapt. For the foreseeable future, proactive measures to protect car keys from being scanned, like using Faraday bags and physical security, remain essential for car owners.
Have a Question about Keyless Car theft?
If you have further concerns about keyless car theft or want personalized advice, please contact us below or consult with a certified MLA (Master Locksmiths Association) licensed car locksmith in your area for expert guidance.
Contact us about keyless car theft
Find nearest car locksmith for advice
