An immobiliser or immobilizer is an electronic security device fitted to a motor vehicle that prevents the engine from being started unless the correct key (transponder or smart key) is present.

Jul 6, 2023 · A car immobilizer system (also known as an engine immobilizer) is a piece of electronic security technology that is designed to deter and inhibit vehicle theft.

Dec 17, 2025 · An immobilizer is an electronic security device integrated into modern vehicles designed to prevent the engine from running unless the correct, authorized key or transponder is present.

Most modern cars come with an engine immobilizer. Here is what that means and how much they cost if your car isn't equipped with that technology.

May 30, 2025 · How does a car immobilizer system work? A car immobilizer system is an anti-theft device that prevents a vehicle's engine from starting without the appropriate ignition key. It is …

Oct 19, 2023 · An immobilizer adds an extra layer of security by verifying whether the correct key has actually been inserted into the ignition switch. If the immobilizer doesn’t detect the correct key, then …

Jan 18, 2025 · How Do Car Immobilizers Work? Car immobilizers are anti-theft devices designed to prevent unauthorized access to your vehicle. They disable the engine, ensuring it cannot start …

Jun 16, 2025 · It’s a 12V vehicle immobilizer system that cuts off fuel or the circuit, preventing the engine from starting. Installation is designed to be easy and doesn’t damage your car’s original wiring.

Aug 16, 2025 · An immobilizer on a vehicle is an electronic security device that prevents the engine from running unless the correct transponder key is present. It acts as a sophisticated gatekeeper, …

An immobilizer system is an electronic security device installed in modern vehicles that prevents the engine from starting unless the correct key or key fob is present.