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Programming Car Keys Key programming is a process that has grown in importance as automobiles have become more electronic. Key programming can earn a lot of income. However, many shops do not offer this service. Modern keys and fobs can perform more than just starting the car. They also allow you to open the rear hatch and protect the vehicle from physical and virtual attacks. This is why you need to be capable of programming them. What is the transponder key? Transponder keys are car key with an additional anti-theft security measure in it. This is achieved by integrating a microchip to identify radio frequencies into the head of the key. The chip is used to relay a signal to your vehicle's immobilizer in the starting of the ignition. This stops hot-wiring of the vehicle and makes it extremely difficult to take your vehicle. However, this does not mean that transponder keys are secure, because even though they provide an extra layer of security it does not mean that criminals cannot utilize their expertise to gain entry into the vehicle. It takes a lot of time and effort to do this, which is why it is a great security feature for anyone concerned about the security of their vehicle. The way that the transponder key functions is quite simple. The microchip in the head of the transponder key is programmed with an unique serial number that is a match for the immobilizer in your vehicle. The immobilizer system will verify the serial number when you insert the key in the ignition. If the serial number matches, then the engine will start. There are a few different types of transponder chip that can be programmed and the type your vehicle uses will determine what kind of key you have. Professional locksmiths and search engines can assist you in finding the correct transponder to match your vehicle. In general, transponder keys are more expensive to replace than non-transponder keys as they come with the additional expense of the microchip. The dealership for your car will be the most costly option to replace your key because they have the most expensive overhead costs, however you can also seek out an expert locksmith to obtain your new key. Another thing to keep in mind is that you are able to program the transponder key only when it has not been cut already. You can try doing it yourself by purchasing a transponder from one of the many stores offering these services, but you'll need to have a special tool to accomplish this task. What is the procedure to program a transponder key? Transponder keys are keys for cars equipped with chip. program a key are designed to stop auto theft by making sure that only the right key is used to start the car. If you've lost your keys or the chip has been damaged, a locksmith can create a replacement key for you. In the majority of cases the process of programming the chip key is simple and straightforward. Some cars require specialized equipment for programming the key. The first step is to determine the type of key you have. To ensure you have the correct key blank, it is crucial to know the make, model and year. Some keys come with transponder chips in the head of the key, whereas others don't. If your key has a chip the bow cover (the plastic section that sits on top of the key) will be thicker than on a non-chip key. You can also determine whether your keys have chips by examining your ignition. If the key has a push-to-start button instead of a hole, it is likely to have a chip. After you have a suitable key blank, the next step is to determine the method of programming that will be employed. Certain transponder keys can be programmed with on-board diagnostics, however, others require a key programming device. The key programming device has to be compatible with the circuit board key that is being utilized, and must also operate at the same frequency as the vehicle's on-board computer. While it is tempting to save money by trying to programme a transponder key yourself, this is very risky. If you do not follow the correct procedure you could corrupt the information stored on the chip, making it impossible to start your vehicle. For this reason, it is best to work with a licensed professional with access to the right tools and know-how to properly program your key. It is a good idea, while you have the keys, to make extras so that you can replace them quickly and easily if you lose one. How do I program my transponder key? If your car is equipped with a transponder key you will need to program the chip inside the head of your car key in order to begin it. This can be a challenge particularly when keys are damaged or lost. You might be able to start the car without a transponder, but it's not recommended. In such cases, you can contact a professional locksmith or car dealership to resolve the problem. To program a transponder key, you'll need the right tools and know the proper procedure for your vehicle. Most transponder keys come with an antenna ring inside the key's head, which transmits bursts of radio frequency energy to the chip within the key. The antenna ring receives a unique code from the chip. After the signal has been received the ignition system will know that the key was inserted and turn on. If you have the right equipment and know the procedure for your vehicle, you are able to do it at home. Many manufacturers have a particular procedure for programming that will require specific supplies. Be aware that programming will require an extended battery life. If your battery fails, you will need to start the process over again. This is why a majority of people prefer having an expert do it for them. Transponder keys that are programmed correctly can save you time and money. You can easily program a new transponder key to work with your old one if you follow the steps below. You must use a programmer compatible with the car model you have. For best results, follow the directions on the device. Certain car models have special technology that requires a dealer to design keys. This is not the case for most vehicles. This process should be simple and quick if you have the correct key and the necessary equipment.