Immobiliser: What does it mean?

An is a piece of electronic car security kit. It prevents a car from starting if someone tries to hotwire it or start it with the wrong key. If your car was made after 1998 it’ll probably have had an immobiliser fitted when it was manufactured. If not, you can get one fitted. Having an immobiliser could help you make savings on your car insurance.

Immobiliser: The long answer

An immobiliser is a car-related term that refers to a security device installed in vehicles to prevent unauthorised use or theft. It is commonly used in the UK to ensure the safety of cars. The immobiliser works by electronically disabling the engine's ignition system, making it impossible to start the car without the correct key or transponder.

In the UK, immobilisers have become a standard feature in most modern vehicles due to their effectiveness in reducing car theft. They provide an additional layer of security by making it extremely difficult for thieves to hotwire or start the car without the original key. Immobilisers are designed to be highly reliable and difficult to bypass, making them an essential component in deterring potential thieves.

When a driver inserts the correct key into the ignition, the immobiliser system recognises the unique code or signal from the key and allows the engine to start. If an unauthorised key is used or the immobiliser system detects any tampering, it will prevent the engine from starting, rendering the vehicle inoperable.

The use of immobilisers in the UK has significantly contributed to the decline in car theft rates over the years. It is recommended that all UK drivers ensure their vehicles are equipped with an immobiliser to enhance the security of their cars and provide peace of mind.