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How to Program Keys For Cars Typically, re programming car key s is the responsibility of a locksmith specialist. They can take your existing key and then use a special tool to program a new key for your vehicle. This involves the reprogramming of a blank chip on the replacement key so that it matches the current settings on your vehicle. Some manufacturers make it simple, while other require the assistance of a locksmith or dealer. Self-programming As technology for cars has improved over the years, the ignition keys have also evolved as well. The days of the basic mechanical keys you could make at a hardware store for less than $10 are gone. Newer models are equipped with computers that are enhanced security against theft. These cars require a transponder-chip integrated key to be programmed by a professional locksmith, car dealer or mechanic in order to function properly. There are several types of car key programming that can be accomplished by locksmiths who are professionals. Certain are complicated and require sophisticated tools. These tools aren't generally available to the public and are only used by professionals. This kind of programming for car keys is referred to as EEPROM Programming and requires soldering, electronic knowledge, and a lot of time. Other types of programming for car keys are much simpler and can be done by anyone who is able to. These are done with the onboard diagnostic port, which can be accessed via a tool specifically designed for key-fob programming. This procedure can be carried out by a trained locksmith with the help of an online guide or the vehicle's owner's manual. Professional locksmiths can program a new or replacement car key fob quickly. This is the best choice for owners of vehicles as they can provide a complete range of services. They can also offer an affordable cost and assurance that the replacement key will work correctly. Remember that most automobiles only accept one programmed car key. If you want to save money, it's a good idea to get an additional key fob that works and then program it. You can be assured that the new key works and is compatible with your car. In the event that it doesn't, you'll need to pay the dealership for replacement keys and programming services. Key Programmers Modern automobiles often require a key programming process to set up the car's system and allow the car to start. In some instances, the key must be configured by the auto locksmith or dealer. The key may not work properly or not start the vehicle at all. This is because the new key hasn't been programmed to the automobile's system, and this could be quite costly. This is why it's a good idea to have two working keys for a modern car and to have the replacement key programmed if necessary. A keyprogrammer can recode a transponder chip on a new mechanical key or key fob. It can also clone information from an existing key to create duplicates. These devices are handheld units that connect to the car's On-Board Diagnostics (OBD) port. They come with diagnostic software, which allows them to communicate with computers. They also have a bidirectional interface to work with an immobilizer system. There are a variety of keyprogrammers on the market. They are available in a variety of sizes, shapes, and colors. Some are affordable, while others are very sophisticated and could cost thousands of dollars. Certain models are specifically designed for certain kinds of vehicles and provide advanced diagnostics for your electronic systems of the car. Refer to the owner's manual of your vehicle to learn how to program keys for your vehicle. Certain manufacturers employ proprietary technology that guarantees that the dealership is the only entity able to create new keys, however other manufacturers make it fairly simple for anyone to do it on their own. If you are not able to program the new key on your own or by yourself, you can request your dealer to do it, however it will cost you a lot. Another option is to purchase an online keyprogrammer. These are cheaper than visiting a dealership however they're not cheap. Before you purchase one, do some research on the seller. Some aren't trustworthy and could cause damage to your vehicle. Transponder Chips Transponder chips are likely to be found in cars that were manufactured within the past 20 years. It's a tiny plastic piece inside the head of your key that contains an RFID (Radio Frequency Identification) chip with a unique code that is specific to your specific vehicle. When activated by an electro-magnetic field the chip emits a low-frequency signal. This signal is then amplified by the specific antenna that is fitted around the barrel that controls your ignition in your vehicle. The computer system in the vehicle is then able to verify that the chip in the key's transponder is the right one for your vehicle. This is the reason why from modifying or hot-wiring the ignition system of your vehicle to turn it on. The chip inside the car key verifies that the owner is the person who is the owner of the vehicle. This will help reduce car theft. Regular transponder keys are shaped like regular keys, but with an outer layer of plastic. The chip is located inside the plastic part of these keys. There are several different cuts that are a standard cut, Laser cut (also called a sidewinder or Ford Tibbe) and Ford Tibbe. When the transponder key is placed in the ignition barrel, a circuit inside of the induction coil sends out the signal. The signal is received by the chip which sends a signal to the vehicle. If the computer inside the car is able to recognize the signal as correct it will turn off the vehicle immobilizer, allowing the engine to start. If the car does not recognize the transponder signal as the correct one, it will prevent the engine from running and will notify you by flashing its lights and sounding siren. This system is designed to deter individuals from tampering with the vehicle. However it's not a foolproof measure of security. A skilled and committed thief might be able get around this system using a device that can take over the signal. It is evident that the transponder is an excellent option. This is something that all vehicle owners should consider if they are looking to safeguard their investment and reduce the chance of theft. Key Fobs Key fobs today do more than just lock and unlock doors. They can also start your vehicle remotely, emit chirping sounds to help locate a car, or turn on the heated steering wheel. A lot of these additional features may appear convenient but they could make it difficult for you to keep the keys to your car. Key fobs make use of radio frequencies to communicate with each other and the car. The frequencies are transmitted via a small antenna that is located inside the middle of the key. This communication is encrypted, which helps stop others from stealing and retransmitting the signal. There are many ways to program a key fob based on your vehicle's model and make. It is possible to do this yourself, however most modern cars require that you visit a dealer or professional locksmith to program a replacement or a second fob. When you press the button on your key fob, the microchip inside transmits an encoded code to the car's radio that it is paired with. The receiver compares this information with the 'allowed' signals stored on the fob and either opens or locks the door. If the data doesn't match the signals, a chirping sound can be heard and the car isn't able to operate. Once the car is paired with a specific fob it will only accept signals from the device that is associated with it. As a result, other fobs will not work with the vehicle, even though they have the same appearance. This helps to protect the integrity of the car's computer system and prevent the use of unauthorized key fobs to gain control of the vehicle. Most newer car dealers will only work on cars with original fobs or genuine replacements offered by the manufacturer. This is because the only place with the experience to design a replacement fob is in the service department of a dealer. However, some fobs from the aftermarket — usually those for older models with less sophisticated systems — can be programmed by the consumer without the need of a dealership.