Modern car keys integrate a concealed transponder chip that is used to deactivate the cars onboard immobiliser. This means all car key will need programming directly to the vehicle. Immobilisers have been around for years and were first made mandatory in 1995. As part of an EU law all cars produced in Europe must now be factory fitted with an immobiliser system. This is designed to increase car security and reduce the number of car thefts.

You may well remember the first types of immobilisers that were fitted as an aftermarket security benefit. These immobiliser systems worked with a small key fob that would need to be pressed against a point in the car to allow the engine to start. Modern immobiliser systems have taken this further by concealing a chip in the head of the car key which is read when the key is inserted or turned in the ignition. Each vehicle manufacturer works with different technology companies to develop effective immobiliser solutions. The main players in the automotive immobiliser industry are Siemens and Valeo. Whilst there are dozens of immobiliser systems that operate in very different ways, the result and experience for the user is exactly the same. Immobilisers work seamlessly without requiring any action from the user other than turning the key to start the car.

In a bid to improve automotive security car manufacturers are constantly changing and developing immobiliser systems. The Car Key People have invested heavily in car key programming equipment and software that allows us to program over 90% of car keys at the roadside.