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LockCar ic326 Wi-Fi immobiliser review, AES-128 encrypted protection explained
The LockCar ic326 is a Wi-Fi connected immobiliser that communicates with the LockCar MCU over a 2.4GHz AES-128 encrypted channel. This distinct communication method sets it apart from wired immobiliser models, providing an additional layer of tamper resistance. This review covers its technical specification and ideal use cases.
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The LockCar ic326 is a Wi-Fi connected immobiliser that communicates with the LockCar MCU over a 2.4GHz AES-128 encrypted channel. This distinct communication method sets it apart from wired immobiliser models, providing an additional layer of tamper resistance. This review covers its technical specification and ideal use cases.
ic326 technical specification
The LockCar ic326 is a Wi-Fi connected immobiliser designed to work with the LockCar MCU as part of a complete system installation. Communication between the MCU and the ic326 uses 2.4GHz AES-128 encryption, meaning the control signal between the two units is encrypted end-to-end. This is a meaningful security enhancement over standard wired immobilisers where the communication between MCU and relay can potentially be intercepted by connecting to the wiring.
The ic326 includes a 20A relay, motion sensor, anti-hijack mode, a buzzer for local alerts, and hands-free operation. The 20A relay covers all vehicle types from compact cars through to commercial vans and pickups. Motion sensor detection adds a layer of alert capability when the vehicle is parked and the immobiliser is armed. The buzzer provides an audible deterrent and confirmation signal.
The AES-128 encrypted communication channel means that even if a criminal identifies the ic326 unit and attempts to send a fake disarm command over the 2.4GHz frequency, the command will be rejected because it lacks the correct encryption key. This is a specific countermeasure against signal injection attacks that target the control channel between an MCU and its connected immobiliser.
ic326 compared to wired models
The primary advantage of the ic326 over wired immobiliser models such as the i226 is the encrypted wireless communication channel. A wired immobiliser connects the MCU to the relay via a physical cable. If a criminal locates the cable and bridges it, they may be able to bypass the relay in some wired configurations. The ic326’s wireless channel has no physical cable to bridge, requiring a valid encrypted signal to disarm. This makes physical bypass attacks significantly more difficult.
The ic326 is most appropriate for installations where the vehicle’s layout makes running additional wiring between the MCU and the immobiliser unit inconvenient, or where the highest possible tamper resistance is required for a system-based installation. For standalone operation without a separate MCU, the IC3ST or IS357 standalone models are more appropriate.
How LockCar stops this threat
LockCar installs a hardwired relay break in the vehicle start circuit. This break is positioned downstream of the factory immobiliser, the OBD port, and the CAN bus. Even after a successful relay attack or CAN bus injection, the engine will not start because the LockCar relay is open. Closing it requires a second, independent encrypted authentication that relay equipment cannot replicate. LockCar is designed and manufactured in the United Kingdom and installed by mobile engineers at your location.
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How long does LockCar installation take?
Installation typically takes 60 to 90 minutes. Our mobile engineer brings all parts and equipment to your location. The system is fully tested before the engineer leaves and you receive documentation on the same day.
Will LockCar interfere with my vehicle factory electronics?
No. LockCar installation uses vehicle-specific wiring procedures and connects at the start circuit in a way that is invisible to the factory CAN bus, ECU, and all other electronic systems. All factory functions continue exactly as before.
Does LockCar cover my area?
LockCar mobile service covers the entire UK. Same-day and next-day appointments are available in most areas. WhatsApp or call Victor to confirm availability and book at your preferred location.
Can I get insurance documentation after fitting LockCar?
Yes. Every LockCar installation comes with a full certificate including device serial number, installation date, vehicle registration, and a technical description of the relay break mechanism. This is accepted by the majority of UK insurers for discount applications.
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