Keyless Car Theft UK 2026: How to Protect Your Car

If you own a car with keyless entry, you've probably heard the warnings about criminals stealing vehicles from driveways in under a minute without ever touching the key. That threat hasn't gone away in 2026. What has changed is the law: police now have new powers to seize the electronic kit thieves use, before a car is even taken. Here's what keyless car theft actually involves, what's new this year, and the practical steps that genuinely make a difference.

What is keyless car theft and how does a relay attack work?

Most keyless cars work by constantly emitting a low-power signal from the key fob so the car can sense when it's nearby. That's what lets you walk up to the car with the key in your pocket and have the doors unlock, or press a button to start the engine. It's convenient, but it's also the weak point that criminals exploit.

The Metropolitan Police describe it plainly: a device is used to trick the car into thinking its key is close by. This unlocks the car and starts the ignition. Two people are usually involved. One stands near your front door with a device that picks up and amplifies the fob's signal, even through a wall. The other stands by the car with a receiver that relays that boosted signal to the vehicle, which then behaves as if the real key is right next to it.

The unsettling part is how little proximity the fob needs to give away. As the Met puts it, thieves only need to be within a few metres of your car key to capture the signal, even if it's inside your home, which means that even if your car and home are secure, thieves can still unlock, start and steal your car.

Is keyless car theft still a growing problem in 2026?

Vehicle theft has been a stubborn issue in England and Wales for several years, and keyless systems remain a favoured route in for organised gangs because they avoid the noise and time cost of forcing a lock or hot-wiring an ignition. Thatcham Research, the vehicle security body that works with manufacturers and insurers, has been blunt about the scale of the problem while also pointing out how far things have come since the days of casual joyriding. Its research with the Centre for Economics and Business Research found that public concern about car theft persists despite a 79% drop in police recorded thefts over the last 30 years, a fall it credits largely to the security standards it has helped establish across the industry.

That long-term progress doesn't mean relay theft has been solved. It remains the method of choice for the organised networks responsible for most vehicle theft, which is precisely why the government has moved to give police a new tool against the technology itself rather than just the aftermath.

The Crime and Policing Act 2026: a genuine change worth knowing about

This is the one development in 2026 that's actually new, rather than a repackaged old warning. The Crime and Policing Act 2026 has received Royal Assent and creates a specific offence around possessing the electronic devices used to carry out relay attacks and similar signal-based thefts. Thatcham Research, which campaigned for the change, welcomed it, noting that the legislation creates a new possession offence, placing the burden on the individual to demonstrate a legitimate purpose, and allowing devices to be seized before any crime is committed.

In practice, that means officers no longer need to catch someone in the act of stealing a car to act against them. If someone is found carrying signal amplifiers, jammers or key emulators with no reasonable explanation, that kit can now be seized and the person prosecuted, closing a gap that's existed for years while relay theft technology got more accessible online.

How to protect your keyless car right now

Legislation targeting the tools helps in the long run, but the practical defence still sits largely with the driver. The advice from police forces across the country has stayed consistent because it works.

Block the signal at home

The single most effective everyday step is storing your key fob somewhere the signal can't be picked up. The Met recommends drivers keep your car key (and the spare) well away from the car, putting the keys in a screened or signal-blocking pouch, such as a Faraday Bag, and checking if the bag or pouch is still working every few months. A decent pouch or box costs very little and takes seconds to use each evening, but it needs to fully enclose the fob to work, so it's worth testing yours occasionally rather than assuming it's doing its job.

Don't forget the basics

• Keep both the main key and any spare away from doors, windows and letterboxes, since thieves target the shortest signal path.
• Turn off the wireless function on your fob overnight if your manufacturer's handbook allows it.
• Fit a visible steering wheel lock as a physical deterrent that a relay attack alone can't get past.
• Reprogramme the keys if you buy a used car, so any old fobs floating around no longer work.

The Met also stresses that additional physical security such as locks and immobilisers are still highly recommended alongside signal-blocking measures, precisely because a layered approach is harder for thieves to defeat than any single fix.

Think about where you park

Where possible, park somewhere overlooked, well lit and away from easy escape routes. Driveways feel private, but they're often chosen by thieves precisely because they're less likely to have the same passing footfall as a street. A dash cam or doorbell camera covering the car adds another layer, both as a deterrent and as evidence if the worst happens.

What to do if your keyless car is stolen

If your car is taken, report it to the police straight away and give them any tracking or camera evidence you have. Then contact your insurer as soon as possible. Most comprehensive policies cover theft, including relay attacks, though insurers will look at whether reasonable security steps were in place, so it's worth keeping any receipts for Faraday pouches or trackers.

And if a theft ever does mean shopping for another car, it pays to look any prospective purchase over properly before you commit. Our free reg lookup pulls up a car's full MOT history, DVLA details and any outstanding safety recalls in seconds, plus a free valuation guide so you have a sense of fair market value before you negotiate. And because a stolen-and-recovered car, an insurance write-off or one with outstanding finance won't always be obvious from the forecourt, our vehicle history check confirms whether a car is recorded as stolen, written off or still on finance before you hand any money over. Should you ever want to spread the cost, we can introduce you to car finance too, always subject to status and affordability.

Buying a car with keyless entry

Not every keyless system is equally vulnerable. Since 2019, Thatcham Research has run a dedicated security rating that specifically marks cars down if their keyless entry or start system has no defence against relay attacks, so it's worth checking a model's rating before you buy, particularly on used cars from the mid-to-late 2010s when the technology was newer and less consistently protected. Manufacturers have since closed many of these gaps with motion-sensing fobs that go to sleep when not moved, but older used examples can still carry the original weakness.

Before buying any used car, it's worth checking its MOT history and any outstanding recalls for yourself rather than taking a seller's word for it. Our buying guides cover the wider checks worth doing on a used car, from service history to spotting cars that have changed hands too often.

The bottom line

Keyless car theft hasn't disappeared, and relay attacks remain the method organised gangs reach for first. But the picture in 2026 isn't all bad news: new legislation now lets police act on the tools before a theft happens, and the basics that have always worked, a decent Faraday pouch, sensible key storage and a visible steering lock, still make you a far less attractive target than the car parked two doors down without them.

Vehicle security ratings, insurer requirements and the exact scope of new possession offences can all change as the Crime and Policing Act 2026 beds in. Check the current position with Thatcham Research for security ratings, your insurer for policy conditions, and the GOV.UK website for the latest on vehicle crime legislation.