CAN Bus Immobiliser PIN Code Car Security Keyless Relay Theft Key Cloning UK
CAN bus immobiliser with PIN code entry. Fits discreetly into the vehicle data network and blocks engine start against relay theft and key cloning.
- Brand: LockCar
- Model: CAN-IMMO
- Category: PIN to START Engine Immobilisers
A CAN bus immobiliser works through the car’s own data network, the system that links the engine, dashboard and controls. Instead of cutting wires, it communicates digitally with the vehicle to stop the engine from starting until the PIN code is entered. The result is a neat, discreet installation that protects against relay theft and key cloning.
- Works invisibly on the CAN bus: no LED, no keypad and no extra ECU on a diagnostic scan
- Unlocked with a PIN on the steering wheel buttons, or automatically by Bluetooth tag, smart watch or smart ring
- Stops key cloning and relay theft, the two techniques behind most keyless car thefts in the UK
- Minimal current draw in use, plus a shutdown option when the car is turned off
- Connected through the CAN network without cutting factory wires, reversible and warranty safe
Compatibility check required
A CAN bus immobiliser must be matched to your specific vehicle before you buy. Just send us your registration plate number and we will confirm compatibility.
Related CAN bus immobilisers
CAN bus immobiliser PIN entry on your existing buttons
There is no added keypad in the cabin. You enter the disarm PIN using the original steering wheel or console buttons, so the interior looks completely standard to anyone checking it out. The code is personal, it works offline and it needs no phone, signal or battery.
- PIN typed on original controls, dashboard left untouched
- Drive away without mobile coverage or the app
- Change your personal code at any time
- Valet mode ready for workshop and service visits
CAN bus immobiliser: enter your PIN on the steering wheel
Here is how a CAN bus immobiliser fits into normal driving. Get in, key your personal PIN into the original steering wheel buttons and the engine is ready. From outside, it looks like you are changing the volume or moving through a menu. Without the right PIN the car will not start, even after thieves have got inside with a cloned or relayed key.
- Nothing new to install. No keypad, fob or display, so the interior stays factory standard.
- Gives nothing away. No LEDs, no sounds and no visible hardware reveal the system.
- Cloned keys go nowhere. A copied or amplified key signal may unlock the car but cannot start it without your PIN.
- Your PIN, not a default. The code is personal to you rather than a generic factory setting.
- Fast every time. Entering the PIN takes only seconds and quickly becomes routine.
How a CAN bus immobiliser stops relay theft and key cloning
Keyless start systems make it possible for thieves to intercept and clone the signal from your key. The LockCar CAN-IMMO works on the vehicle data network and keeps the engine from starting.
- Installed out of sight on the vehicle CAN bus
- Blocks the engine when a start command arrives without authorisation
- Allows the engine to start only after the correct PIN sequence
- Sets off the car’s alarm if no PIN is entered within 30 seconds of switching the ignition on
Hands-free CAN bus immobiliser release with tag, watch or ring
Once a Bluetooth tag, smart watch or smart ring is paired, the car recognises you as you get close. The immobiliser disarms inside your chosen range and locks the engine again when you leave, so day-to-day use feels like driving a car with no added security.
- Auto disarm range set anywhere from 1 to 5 metres
- Switch the tag off physically before lending the keys
- The phone is the master control, not an automatic key
- Authorisation fully handled in the app
CAN bus immobiliser specifications
CAN bus immobiliser FAQs
Will a CAN bus immobiliser void my manufacturer warranty?
No. It connects to the car’s CAN data network, so no critical factory wiring is cut or modified. The fitting is non-invasive and completely reversible, which means it should not affect your manufacturer warranty.
Does a CAN bus immobiliser drain the battery?
It is built to work only while the car is awake. When the vehicle is switched off, the immobiliser shuts down as well.
Can thieves detect the CAN bus immobiliser?
There are no lights, no RF signal and no extra ECU on a routine diagnostic scan, and each installation is placed somewhere different. Without a standard location to check, finding the block in the time available to a thief is impractical.
Do I need my phone or a signal to start the car?
No. The car can always be released with your PIN sequence on the original buttons, completely offline, or automatically with the paired tag.
