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How to Program Keys For Cars Typically, car key reprogramming is the work of a locksmith specialist. They will use a special software to program the new key using your old one. The procedure involves reprogramming the blank chip inside your replacement key to suit the current settings of your vehicle. Some manufacturers make this easy but others require a locksmith or dealer. Self Programming As technology for cars has improved over the years, the ignition keys have evolved as well. The days of the basic mechanical keys you could buy from the hardware shop for less than $10 have gone. Modern models come with computers that have improved security against theft. In order to work properly, these cars require that a transponder chip-integrated key be programmed to the vehicle by a professional locksmith or mechanic/car dealer. There are many types of car key programming that can be accomplished by locksmiths who are professionals. Certain are complicated and require sophisticated tools. These tools are usually not accessible to the general public and are used only by professionals. This type of programming for car keys is referred to as EEPROM Programming and requires soldering, electronic knowledge and a significant amount of time. Other types of key programming can be performed by anyone. They are typically accomplished by using the onboard diagnostics port, which is accessible with the key-fob-programming device. resource for this article can be performed by a locksmith who is trained with the help of an online guide or an owner's manual. Most professional locksmiths can program a new or replacement car key fob fast and precisely. This is the ideal option for car owners since they can provide a complete range of services. They can provide a competitive cost and security of knowing that the replacement key is going to work. Be aware that most vehicles can only accept a single programmed car key. Therefore, if you want to save money, it might be a better idea purchase a working spare key fob, and have it programmed by an auto locksmith. You can be sure the new key works and is programmed for your car. If not, you'll have to pay the dealership for replacement keys and programming services. Key Programmers Modern automobiles require a key-programming process to initialize their vehicle's systems and start the car. In many cases the key needs to be configured by the dealer or an auto locksmith. The key may not function correctly or will not start the car in any way. The reason is because the new key has not been programmed to the automobile's system. This can be quite expensive. This is why it's a good idea to have two keys working for a modern automobile and to have the replacement key programmed if needed. A keyprogrammer can reprogram the transponder chip on an entirely new mechanical key or key fob. It is also able to clone data from an existing key which allows duplicate keys to be made. These are handheld devices that connect to a car's On Board Diagnostics (OBD port). They are equipped with diagnostic software, which allows them to communicate with computers. They also have a bidirectional user interface that works with an immobilizer system. There are a number of different types of keyprogrammers available on the market and they are available in all sizes and shapes. Some keyprogrammers are cheap and others may cost thousands of dollars. Certain are designed for specific automobiles and offer advanced diagnostics of the car's electronic system. Consult your owner's guide to learn how to program a key for your vehicle. Certain manufacturers have proprietary technology that guarantees that the dealership is the sole entity able to create new keys. However, other manufacturers make it simple for anyone to do it on their own. If you're unable to program a new key by yourself or ask the dealership to do it for you, but it will cost a lot. Another option is to buy a keyprogrammer online. They're less expensive than visiting a dealership, but they're still not cheap. Before you purchase one do some research on the seller. Some aren't trustworthy and could damage your vehicle. Transponder Chips Transponder chips can be found in cars that were manufactured in the last 20 years. It's the tiny piece of plastic in the head of the car key that has an RFID (Radio Frequency ID) chip with a unique code for the vehicle you own. The chip emits a low-level radio signal when it is activated by an electromagnetic field. The signal is received by a specific antenna attached to the ignition barrel. The computer system of the vehicle will then confirm that the transponder chip of the key is the correct one for your car. This stops the vehicle from starting by hot-wiring or tampering. The chip inside the key also verifies that you are the genuine owner of the vehicle. This will help reduce car theft. Transponder keys resemble normal keys, but with a plastic cap. The chip itself is housed within the plastic part of the key, and there are a few different types of cuts on these keys: a regular standard cut laser cut (also called a sidewinder key), or a Ford Tibbe key. A circuit within the induction coil will emit an electrical signal when the transponder is inserted into an ignition barrel. The signal is taken up by the chip, which then transmits a signal to the vehicle. If the computer inside the car recognizes the signal as being correct, it will disable vehicle immobilizer so that the engine can start. If the vehicle doesn't recognize the transponder as a valid signal, it won't start the engine, and will warn you with flashing lights and siren. This feature is intended to deter people from trying to hack into the vehicle, however it isn't a foolproof security measure. A skilled and skilled criminal could still bypass this system by using a specific device that detects the signal. As you can see, there are quite a few advantages to getting a transponder key. This is something that all car owners should think about if they want to safeguard their investment and reduce the risk of theft. Key Fobs Key fobs today do more than just lock and unlock doors. They can also start the car remotely, emit chirping sounds to aid in finding the car or turn on the heated steering wheel. These extra features can make it difficult to locate your car keys. Key fobs use radio frequencies to communicate with one another and with the car. These frequencies are transmitted by a small antenna in the middle of the key. This signal is encrypted to stop others from stealing or modifying the signal. Keyfobs can be programmed in various ways based on the model and brand of your car. Certain cars let you do it yourself. However, the majority of modern models require you to visit an expert locksmith or dealer to program a new key fob or additional one. When you press the button on a key fob, the microchip transmits signals to the receiver inside the car with which it is paired. The receiver compares the information with the 'allowed signals' that are stored in the key fob and then it opens or closes the car's doors. If the information isn't in line an chirping sound is heard and the car isn't permitted to operate. Once the car has been connected to a specific fob, it only accepts signals from that device. In turn, other fobs will not work with the vehicle even if they have the same appearance. This helps to protect the integrity of the car's computer system and prevent unauthorised key fobs from taking control of the vehicle. The majority of newer dealers will only work on cars with original fobs or genuine replacements sold by the manufacturer. This is because the process of creating a replacement fob requires technological and security knowledge that is only available in the dealer's service department. Certain aftermarket fobs, typically those from older models with less advanced systems, can be programmed without the need for a dealer.