If you’ve ever wondered what an immobilizer is and whether your car has one, you’re not alone. An immobilizer is a component of your car’s security system that prevents unauthorized access to your vehicle. It is designed to prevent the engine from starting if the wrong key or an unidentified key is used.

So, how does an immobilizer work? Simply put, an immobilizer consists of a small electronic device that is embedded in the key or a separate fob. When the key is inserted into the ignition, the immobilizer sends a unique signal to the car’s computer system. The computer recognizes the signal and allows the engine to start. If the key does not match the immobilizer’s signal, the computer system disables the engine and the car won’t start.

Nowadays, most new cars come equipped with immobilizers, as they provide an essential layer of protection against theft. According to statistics, immobilizers reduce car theft by up to 50%. However, older cars may not have an immobilizer, or it may not be working effectively.

To determine if your car has an immobilizer, check the owner’s manual or the manufacturer’s website. Most vehicles built after 2000 have some form of an immobilizer. Additionally, look for an immobilizer symbol on your key fob or the dashboard. The symbol looks like a car with a key in it and indicates that your car has an immobilizer.

If your car doesn’t have an immobilizer, you may consider installing one. An immobilizer can be retrofitted onto older cars, providing a cost-effective way of adding an extra layer of security. However, it’s important to check with an automotive expert before making any modifications to your car’s security system.