What Will Help You Keep Your Car Secure in UK: 9 Tips

A vehicle is stolen roughly every 10 minutes across the UK, with relay theft now accounting for nearly half of all whole-vehicle thefts nationally. The good news is that a combination of simple habits and the right security tech can make your car a far less attractive target. Here are 9 practical, effective ways to keep your vehicle secure this year.

Here Are 9 Tips On How to Keep Your Car Secure

From simple daily habits to genuine anti-theft technology, the most effective car security comes from combining several layers of protection rather than relying on just one. Below are 9 practical tips that address both opportunistic theft and the more sophisticated methods modern criminals use.

1. Understand How Thieves Actually Target Cars Now

Before fitting anything, it helps to know what you're actually defending against. Relay theft, where criminals use a signal amplifier to capture your key fob's signal from inside your home and relay it to a device next to your car, is now the dominant method used against keyless vehicles, and it can be carried out in seconds without ever touching your key.

Signal jammers are also implicated in roughly 40% of vehicle thefts nationally, rising to around 60% in London according to Metropolitan Police estimates.

Knowing this changes what "security" actually means in practice. A locked door and a factory alarm simply weren't designed to stop a relay attack, which is why layered protection matters more now than it did a decade ago.

2. Store Your Key Fob Somewhere Signal-Proof

The simplest and cheapest defence against relay theft costs next to nothing. Keeping your key fob in a Faraday pouch, a signal-blocking box, or even the microwave overnight (unplugged and switched off) prevents its signal from being captured and relayed by a thief standing outside your property.

It's not foolproof on its own, since determined criminals have other methods, but it removes the easiest and fastest theft route available to opportunistic thieves working a street of parked cars.

3. Fit a Steering Wheel Lock for Visible Deterrence

A steering wheel lock is old-fashioned, but it still works precisely because it's visible. Thieves generally want speed and low risk, and a highly visible physical lock signals that your car will take longer to steal and draw more attention than the one parked next to it without one.

It won't stop a determined professional crew working with sophisticated tools, but as a deterrent against casual opportunists, it remains a genuinely cost-effective addition, especially when combined with less visible security measures underneath.

4. Install a CAN Bus Immobiliser to Stop Relay and Cloning Attacks

This is where real protection against modern theft methods begins. A CAN bus immobiliser connects directly to your vehicle's onboard electronics network rather than relying on a key fob signal at all, meaning it renders both relay attacks and key cloning completely ineffective, since neither can satisfy the system's authentication check.

GPSBob's Casper range works exactly this way, using genuine CAN bus technology to communicate with the vehicle's own electronics. Unlike a traditional alarm, it stays completely invisible, with no key fobs or physical indicators for a thief to spot, and there's no monthly fee involved, just one upfront payment and free nationwide installation, with the team coming to your home, workplace or even a dealership to fit it.

The Casper Ghost-Like Car Immobiliser, priced at £399.00, uses a hidden button sequence entered on the steering wheel, known only to you, before the vehicle will start. Any other attempt to start the car keeps the immobiliser engaged, and because nothing needs to be carried, there's nothing to lose or forget.

For those who'd rather skip remembering a code, the Casper Pro: No Tag, No Start, priced at £499.00, uses automated tag recognition instead. With the tag present in the vehicle, the car starts as normal; without it, the engine simply won't run. It adds anti-scan technology and direct control over key engine functions, and installation typically takes around an hour once fitted by a qualified professional.

5. Fit a Tracker That Can Actually Locate Your Car if It's Stolen

An immobiliser stops unauthorised starting, but it doesn't help if your car is winched onto a flatbed truck or towed away without the engine running, which is an increasingly common theft method for higher-value vehicles. This is where a GPS tracker earns its place alongside an immobiliser rather than instead of one.

GPSBob's range of car trackers uses real-time 4G GPS tracking with mobile app and web access, giving you visibility of your vehicle's location and movement history whenever you need it. Rather than locking you into an ongoing monthly subscription, GPSBob sells its trackers with tracking data and software included in the purchase price for five years, renewable afterwards for a flat £75, so the total cost is clear from day one.

Installation uses a straightforward two-wire setup compatible with most cars, vans and motorcycles, and the compact design stays hidden from anyone looking for it.

6. Consider a Thatcham-Approved Tracker If Your Insurer Requires One

If your insurance policy specifically requires an insurer-recognised device, a standard GPS tracker won't satisfy that condition. Thatcham Category S7 and S5 trackers are the recognised UK standards, with S7 covering movement-based tracking and 24/7 monitoring, and S5 adding Automatic Driver Recognition to specifically counter relay theft and key cloning.

The GPSBob Thatcham S7, priced at £169.99 for the device plus a £9.99 monthly plan with no lock-in, delivers 4G-enabled real-time tracking, advanced anti-theft alerts and a 24/7 monitored control room, with free nationwide installation included.

The GPSBob Thatcham S5, priced at £349.00 for the device, builds on this with TOTP technology tags for secure driver identification, directly addressing the keyless relay theft that accounts for such a large share of thefts against premium and hybrid models today.

Many insurers offer discounted premiums for vehicles fitted with one of these devices, which can offset a meaningful chunk of the purchase cost over time.

7. Park Strategically, Not Just Wherever's Convenient

Where you leave your car overnight matters more than most drivers realise. Statistics show over half of vehicle thefts happen at night between midnight and 6am, with the vast majority occurring in darkness.

Parking in a well-lit area, ideally covered by CCTV, or tucked inside a garage rather than left on a driveway or street, genuinely reduces opportunity for thieves working under cover of darkness.

If a garage isn't available, angling your car so the more vulnerable side (often nearest the door lock or badge) faces a wall, fence or another obstacle adds a small but real extra layer of friction for anyone attempting a quick theft.

8. Avoid Leaving Valuables or Documents Visible Inside

Beyond theft of the vehicle itself, leaving anything valuable visible through a window invites opportunistic break-ins. This includes satnavs, bags, laptops, and crucially, any paperwork containing your address or vehicle documents, which can be used to help identify and target a specific car for later theft.

Simple as it sounds, this remains one of the most overlooked aspects of vehicle security precisely because it costs nothing and takes seconds to do properly every time you leave your car.

9. Layer Your Security Rather Than Relying on One Device

No single device stops every theft method on its own. The most effective approach for most drivers combines a signal-blocking pouch for the key fob, a CAN bus immobiliser to prevent unauthorised starting, and a tracker capable of locating the vehicle if it's moved or towed despite everything else.

This layered approach reflects exactly why GPSBob offers both categories, immobilisers like Casper and Casper Pro alongside Thatcham-approved trackers like the S7 and S5, rather than treating either as a complete standalone solution. Combining prevention with recovery capability gives you the best realistic odds against both opportunistic and organised theft.

FAQs

Does comprehensive car insurance already cover theft, so is extra security unnecessary?

Comprehensive insurance covers financial loss after a theft, but it doesn't recover a stolen vehicle or prevent the disruption and excess costs involved, which is why physical security remains worthwhile regardless of cover level.

Can thieves bypass a factory-fitted alarm system easily?

Yes, many factory alarms and immobilisers can be bypassed using signal relay devices or OBD port hacking tools that are widely available, which is why aftermarket CAN bus security has become more relevant.

Is it worth fitting security devices to an older, non-keyless car?

Yes, older vehicles remain common theft targets too, particularly for parts or resale, so a tracker or immobiliser still adds meaningful protection regardless of whether the car has keyless entry.

Do dash cams help with vehicle security beyond driving footage?

Some dash cams include parking mode with motion detection, which can capture footage of an attempted theft or break-in even while the vehicle is stationary and unattended.

How quickly can signal jammers defeat standard car alarms?

Signal jammers can block the remote locking signal almost instantly, which is why physically checking your car has locked, rather than relying solely on the remote's beep or flash, is a sensible habit in higher-risk areas.