https://www.g28carkeys.co.uk/letchworth-auto-locksmiths-near-me/ How to Program a Key The majority of new keys for modern cars have to be programmed in order to work. This can be done in a parts department of a dealership or a locksmith with the proper tools. There are two situations where key programming is required in shops adding a new key or the working keys are lost. The steps for each differ slightly, but they can all be broken down into the following categories: Keys In data structures the key is an individual identifier for the entire set of data. The key may be a part of the data (as with primary keys in relational databases) but it could also stand alone. The key is utilized to locate data quickly without having to search the entire structure. This method can be used as a starting point or guide for most American cars, and certain European models without VATS. You will need a working key and the VIN for your vehicle. It is typically found on official documentation such as the title or registration card, or the insurance card. It is important to remember that some car manufacturers require two working keys before you can utilize this method. Chips Most car keys nowadays contain an embedded chip, referred to as a transponder, which is why they are sometimes also known as "chip keys." When you insert the key into the ignition lock cylinder and turn it on position the antenna ring transmits an audio frequency signal, together with the identification code to the transponder. The chip then sends a burst of energy which the ignition lock uses to determine whether the key is the correct one to open the car. If your vehicle is set to only accept a specific type of chip, it won't start using a non-transponder keys. This will prevent theft of cars since only the owner of the car can start the vehicle with a stolen key. There are, however, ways to create a new key without the original transponder. The first step is to get an unlocked key that is compatible with the ch