Vehicle break-ins and thefts are unfortunately still common occurrences in many areas. As vehicle security systems continue to improve, thieves have had to get more creative with the methods and tools they use to gain access illegally. One trend that has emerged is the use of various electronic devices that can bypass modern vehicle security and provide quick access without leaving signs of forced entry.
Key Fob Relay Devices
One of the most high-tech tools being used currently is called a “relay device.” This tool allows thieves to amplify the signal from a key fob remote control – even from inside your home – to open and start the vehicle without having the actual fob present.
Here’s how it works: The device consists of two parts, a transmitter and a receiver. The transmitter is placed near the target vehicle while the receiver is near the key fob. When the fob’s unlock or lock buttons are pressed, the transmitter picks up this signal and relays an amplified version of it to the receiver. The receiver then broadcasts the boosted signal to the vehicle’s keyless entry system, which thinks the real key fob is nearby and responds accordingly, unlocking or locking the doors.
This allows thieves to quickly gain entry without any damage. Relay devices can transmit signals through walls, floors, and doors, meaning the key fob doesn’t need to be very close to the transmitter. Some advanced versions can even start the vehicle once inside, allowing the thieves to drive it away.
Statistics on Key Fob Theft
| Year | Thefts Using Relay Devices |
|---|---|
| 2018 | 1,200 |
| 2019 | 2,200 |
| 2020 | 3,850 |
As seen in this table, thefts using relay devices have risen dramatically in recent years as the technology becomes more accessible. This highlights the need for added layers of security beyond just keyless entry fobs.
How to Protect Yourself
Fortunately, there are steps you can take to reduce the risk of relay device theft:
Use RFID blocking pouches
Putting your fob inside an RFID blocking bag or pouch when not in use blocks the signal, preventing relay thefts. Just make sure to take it out when you need to actually use the fob.
Consider an RFID blocking key fob case
There are various cases available that block key fob signals when closed but still allow the buttons to be pressed to unlock the vehicle once opened. This also prevents unwanted signal amplification when not in use.
Park in busy, well-lit areas
Thieves are less likely to attempt a relay theft in exposures areas with high foot traffic and good lighting. Always lock your vehicle too.
Activate additional security features
If available, use added security measures like steering wheel locks, brake pedal locks, or ignition disable switches. This makes the vehicle harder to steal even if entry is gained.
Check vehicle frequency settings
Some vehicles allow you to change the key fob signal frequency in the settings menu. Switching to a non-standard frequency can prevent some relay thefts.
Newer Vehicle Security Features
Many newer vehicle models have built-in security specifically designed to combat relay thefts:
- Frequency hopping transmitters that continuously change the frequency of signals sent to the vehicle, making them unable to be mimicked.
- Ultrasonic sensors that detect proximity of the key fob. If no fob is detected nearby, the system will not respond.
- Filters that block suspicious incoming signals not matching the proper frequency.
These make relay theft attempts much more difficult but cannot prevent them completely. Taking additional common sense precautions is still recommended.
Conclusion
Relay devices allow thieves to open and steal vehicles without any damage, often going unnoticed for days or weeks. While high-tech in nature, there are simple steps vehicle owners can take to reduce the risk. Being aware of this threat and taking proactive measures will help keep your vehicle more secure. Vehicle manufacturers continue to implement new technology to stay ahead of thieves, but staying vigilant remains the best defense.