The Hidden Risk of Keyless Entry Systems

Automakers have a knack for solving problems nobody had, then creating new headaches in the process. Take the proximity key fob. For years, inserting a metal key into a lock worked just fine. Then push-button start arrived, marketed as a basic luxury feature. Suddenly, drivers could unlock and start their cars without ever touching a key.

Convenient? Absolutely. But that convenience comes with a catch that many owners don't see coming.

Here's the issue: those key fobs constantly broadcast a low-power radio signal. Thieves have learned to use inexpensive devices that amplify that signal from inside your house, tricking your car into thinking the key is right next to it. In seconds, they unlock the door, start the engine, and drive away.

No broken windows, no forced locks. It's called a relay attack, and it's happening more often in parking lots and driveways across South Florida.

One simple countermeasure is gaining popularity among local drivers: the Faraday cage. These are small pouches, boxes, or sleeves lined with conductive material that block radio signals. When you store your key fob inside one, it can't be detected or amplified by thieves. Think of it like putting your key in a tiny signal-proof room.

Many owners now keep their fobs in a Faraday pouch at home and even carry one in their pocket when out and about.

At Boca Auto Care, we've seen the frustration firsthand. Customers come in after a keyless theft, surprised their car vanished without a trace. Our advice is straightforward: test your fob's range at home, store it away from doors and windows, and consider a Faraday pouch. It's a small investment that could save you thousands and a lot of headaches.

Stop by our shop and we'll show you how it works.