How Thieves Steal Keyless Cars — and How to Stop Them

Keyless cars are convenient. Unfortunately, that same convenience has created one of the easiest ways for thieves to drive off with your vehicle. Here's exactly how it happens, in plain English, and the practical steps that stop it.

What is relay theft?
Your keyless fob is always quietly broadcasting a short-range signal. Relay theft uses two cheap devices: one thief stands near your house to pick up that signal (even through a wall or window), and a second relays it to your car, tricking it into thinking the key is present. The doors unlock, the engine starts, and they're gone — often in under 60 seconds, with no alarm and no broken glass.

Which cars are targeted?
Almost any vehicle with keyless entry and push-button start is a potential target. Thieves tend to favor models that are quick to move and easy to resell for parts, but no keyless car is immune.

The signs you've been targeted
Sometimes there are none — that's what makes it so effective. Occasionally drivers report a fob that suddenly stops working reliably or a car that seems to have been "tried." By then it's usually too late, which is why prevention beats detection.

How to actually stop it
You don't need to spend a fortune. Layer these up:

1. Block the signal. Keep your fob in a Faraday pouch or a metal tin at home. If the signal can't escape, it can't be relayed.
2. Add a visible physical deterrent. This is the big one. A relay attack gets a thief into the car — but a steering wheel lock stops them from driving it away. More importantly, a visible lock usually makes them skip your car entirely before they even try.
3. Park smart. Well-lit areas, driveways over the street, and backing into spaces all add friction.
4. Use your garage if you have one. Obvious, but most people don't.

Why the physical layer matters most
Electronic measures reduce the chance of a signal being cloned, but they're invisible — a thief doesn't know you have them until they're already trying. A physical lock does the opposite: it works before the attempt, by changing the thief's decision the moment they look at your car. That visible "not worth it" signal is the single most effective deterrent for the average driver.

That's the whole idea behind SteerShield — a heavy-duty, high-visibility steering wheel and seat belt lock that resists cutting, drilling and impact, and fits any wheel in seconds. Combine it with a Faraday pouch and you've covered both halves of the problem. See SteerShield →