Electric vehicle immobiliser UK — relay safe

Tesla, BMW i-series, Nissan Leaf, Hyundai Kona, Volkswagen ID.4. Relay immobilisers operating on the 12V auxiliary system — independent of the high-voltage drivetrain.

All EV makes · 12V aux system · Zero HV contact · From £139

EVs are increasingly targeted by relay attacks — especially Tesla models and premium EVs in high-density urban areas. CAN bus immobilisers on EVs carry amplified risk due to the more complex and tightly controlled ECU architecture. LockCar relay products operate on the 12V auxiliary system and have no contact with the high-voltage network or EV-specific CAN bus.

The 12V auxiliary system in any EV controls ancillary functions — including, on most models, auxiliary relay circuits that LockCar products interrupt to prevent engine start. This means the same relay principle that works on a petrol car works on an EV — without any contact with the high-voltage battery management system or the EV’s complex power network.

EV recommendation

IC3ST — £139

12V relay — EV safe

The correct choice for most EV owners. 12V auxiliary relay — zero HV contact, zero EV CAN bus contact. Works on all major EV platforms. App, motion alerts, proximity tag.

ONE Plus — £259

GPS + 4G + relay for EVs

Full protection package for premium EV owners. GPS tracking, 4G live camera, relay immobiliser, and remote immobilisation from your phone. Automatic night arming.

EV immobiliser — all electric vehicles

EV relay immobiliser from £139

12V auxiliary operation. Zero HV or EV CAN bus contact. Professionally installed at your home charging point or workplace.

IC3ST for EVs → EV enquiry

From £139product only
from £300 fitted