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Programming Car Keys Key programming is a process that has become more important as automobiles have become more electronic. It can bring in lots of revenue. Many shops do not offer this service. Modern keys and fobs be more than just a way to start the car – they also unlock the rear hatch and secure the vehicle from physical and virtual attacks. This is why you need to be capable of programming them. What is a transponder? A transponder key is a car key that has an security measure to prevent theft built into it. This is accomplished by incorporating the radio frequency identification microchip into the plastic head section of the key. The chip is used for relaying a signal to your vehicle's immobilizer in the ignition's start-up procedure. This stops hot-wiring the car and makes it extremely difficult to steal your vehicle. However, this does not mean that transponder keys are infallible, because although they provide an additional layer of security, it does not mean that a criminal cannot utilize their expertise to break into vehicles. It takes a lot more time and effort for them to do this and that's why they are a great security feature for anyone who cares about the safety of their vehicle. The way that a transponder key works is very straightforward. The microchip inside the plastic head of the key is programmed with a specific digital serial number that is connected to the immobilizer system in your vehicle. When you insert the key into the ignition the immobilizer will recognize the serial number and validate it. If the serial number is in line then the engine will start. There are a few different types of transponder chips that can be programmed and the type your vehicle uses will determine what kind of key you have. You can determine the best transponder chip for your car by using an online search engine or by visiting a professional locksmith and asking what type of key you have. Transponder keys are more expensive to replace because of the microchip. The dealership that sells your vehicle is the most expensive option to replace your key, as they have the most cost of overhead. However you can also go to locksmiths to purchase a new key. Another important thing to be aware of is that you are able to program the transponder key only if it has not been cut already. You can try doing it yourself by purchasing a transponder chip from one of the many stores offering these services, but you'll require a special tool in order to accomplish this task. What is the procedure to program the transponder? Transponder keys are keys for cars that have chip. They are designed to guard against theft of vehicles by ensuring that only the correct key is used to start the car. Locksmiths can create a new key for you if you've lost yours or the chip has been damaged in any way. In most instances, programming a chip-key is a relatively straightforward and simple procedure. Some cars require specialized equipment for programming the key. The first step is to determine what type of key you have. To ensure you have the correct key blank, it is important to know the model, year, and make. Some keys have transponder chips in the key head, while others do not. If your key has a chip the bow cover (the plastic part at the top of the key) will be more thick than on a non-chip key. You can also determine whether your keys are equipped with a chip by checking your ignition. If your key has a button to start instead of a hole it could be a chip. The next step is to choose which programming method will be used. Some transponder key can be programmed with on-board diagnostics, while others require special key programming device. The key programming device should be compatible with the key transponder/circuitboard that is being utilized. It should also function at the same frequency of the vehicle's computer on-board. It's tempting to save money by programming a transponder yourself however, this could be risky. If you don't follow proper procedure you could damage the information stored on the chip, making it impossible for you to start your car. Therefore, it is best to work with an authorized professional who has access the necessary tools and knowledge to program your key correctly. It is a good idea once you have the keys, to make additional keys to replace them quickly and easily if you lose one. How do I program my transponder key? You must program the chip inside the head of the car key if your vehicle is controlled by a transponder. This process can be tricky particularly if your keys are damaged or lost. reprogram car key is possible to start the car without the transponder, but it's not recommended. In these cases you should contact a professional locksmith or a car dealership to resolve the problem. To program a transponder keys, you need to have the right tools and be aware of the proper procedure for your vehicle. The majority of transponder keys have an antenna ring inside the head of the key that sends out bursts radio frequency energy to the chip within the key. The chip then responds with an identification code to the antenna ring. Once the transmission is received, the ignition system can detect that the key has been inserted and turn on. You can do this at home if you have the right equipment and knowledge of the procedure for your specific vehicle. Most manufacturers have their own methods of programming that may require specific supplies. You should also be aware that the process of programming requires a large battery power duration. If your battery dies, you will need to start the process over again. This is why a majority of people prefer having an expert do it for them. A transponder key that is programmed correctly will not only make sure that your vehicle is safe to drive but it will also save you time and money. Follow the steps below to program a new key to work with an old one. You must use a programmer compatible with the car model you have. To get the best results, adhere to the instructions on the device. Some car models use special technology that requires a dealer to create a key. This is not the case for the majority of vehicles. If you have the right key and the equipment needed the process should be quick and easy.