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YOUR CAR
CAN BE STOLEN
in under 60 seconds with no alarm triggered
Car Immobiliser Systems — UK Made
Car immobiliser system built differently
Relay-based. Zero ECU contact. Hands-free proximity disarming. The Ghost alternative that protects your car without risking your warranty.
Most immobilisers on the UK market connect to your car’s ECU network — creating interference risk, PIN lockout frustration, and potential warranty voidance. LockCar systems cut a physical circuit instead. Simpler. Safer. More reliable.
0ECU connections — pure relay, no CAN bus contact
5mproximity detection range on the IS357 — arms before you reach the car
12/24Vworks on cars, vans, EVs, HGVs, and motorhomes
The LockCar immobiliser range
£129IS326
LockCar IS326 — Entry relay immobiliser
20A relay cut on fuel pump. App-controlled. Solid single-circuit protection for any 12V vehicle. Ideal for vans, older vehicles, and commercial applications.
Solid protection
£139IC3ST
LockCar IC3ST — App + proximity tag
Standalone relay immobiliser with full app control, proximity tag hands-free disarming, and motion alerts. The direct Ghost alternative for most UK car owners.
Best value
£149IS357
LockCar IS357 — 5m proximity + smartwatch
Extended 5m tag detection, smartwatch support, Bluetooth disarming. Recommended for BMW, Mercedes, Range Rover, Volvo owners with warranty concerns.
Top pick
£259ONE Plus
LockCar ONE Plus — GPS + 4G + Immobiliser
The full package: relay immobiliser + GPS+GLONASS tracker + 4G live camera + remote phone control + automatic night arming. Fleet-grade spec at personal price.
Maximum protection
Why relay is better than CAN bus
LockCar method
Relay-based immobiliser
Physical circuit interruption
A 20A physical relay breaks the fuel pump or starter circuit. The car cannot start — regardless of what key signal is presented. No electronic bypass possible.
Advantages
- Zero ECU contact — no interference
- Warranty safe on all makes
- Works on EVs and HGVs
- No PIN to forget
Limitations
- Requires professional concealment
CAN bus immobiliser (Ghost)
ECU network signal
Sends signals through the car’s ECU network. PIN sequence required. Widely known but carries documented ECU interference and warranty voidance risk.
Advantages
- Brand recognition
- Large installer network
Limitations
- Documented ECU interference
- BMW/Volvo warranty rejected
- PIN lockout risk
- No GPS or app features
- Higher installed price
BMW owners: BMW has explicitly stated that Ghost-fitted vehicles are not covered under manufacturer warranty. LockCar relay products have zero CAN bus contact — your warranty is not affected. Read the full warranty guide →
What installation includes
Included
Full panel disassembly for concealment
The relay is hidden in a non-obvious location requiring significant disassembly time to locate. An immobiliser that can be found in 90 seconds provides near-zero protection.
Included
App pairing and full setup
Your app is connected, tested, and configured before Victor leaves. Motion alerts, arming status, and remote control all confirmed working in situ.
Included
Direct post-installation support
Victor’s number. Not a call centre. The engineer who designed and installed the product picks up the phone.
The Ghost alternative — UK manufactured
LockCar immobiliser systems from £139
Zero ECU contact. Proximity tag. App control. Professionally fitted at your location anywhere in the UK.
Shop immobilisers → Free recommendationFrom £139product only
from £300 fitted
from £300 fitted
Car immobiliser FAQ
Does my car already have an immobiliser?
All UK cars manufactured after 1998 have a factory immobiliser. It verifies your key’s chip — but relay attacks bypass this by amplifying your real key’s signal. An aftermarket relay immobiliser adds a second, independent layer the relay attack cannot replicate.
Will it void my car warranty?
LockCar relay products have zero CAN bus contact. They interrupt an existing circuit — equivalent to an additional switch. Most manufacturers’ warranties are not affected. CAN bus products like Ghost have been confirmed by BMW to void manufacturer warranty.
What if I lose my tag?
Every LockCar system includes a backup disarm method and valet mode. You will never be permanently locked out of your own vehicle. Victor provides full guidance on backup procedures at installation.
Is the IC3ST better than Ghost for my Range Rover?
For most Range Rover owners, yes — zero ECU risk, lower installed price, hands-free disarming, and full app control. For owners who also want GPS and 4G remote monitoring, the ONE Plus is a stronger choice. Full Ghost comparison →