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How to Program Keys For Cars Automotive specialists or locksmiths are usually the ones who reprogram keys for cars. They can take your old working key and then use a special tool to program a new key for your vehicle. The procedure involves reprogramming the blank chip inside the replacement key to match the current settings of your vehicle. Some manufacturers make it easy for you, while others require the assistance of a locksmith or dealer. Self-Programming As car technology has evolved throughout the years, ignition keys have evolved as well. There are no more simple mechanical-only keys that could be made at an hardware store for less than $10. The latest models come with computers that have improved anti-theft security. In order to work correctly, these vehicles require a transponder chip-integrated key be programmed to the vehicle by a certified locksmith or a car dealer/mechanic. Professional locksmiths can carry out various types of programming for keys for cars. Certain types are more complex and require sophisticated tools. These tools are not accessible to the general public and are used only by professionals. This type of programming is referred to as EEPROM Programming. It requires expertise in soldering, electronic knowledge and a lot of time. Other kinds of key programming can be performed by anyone. These are done using the onboard diagnostic port, which can be accessed with a special tool for key-fob programming. This method can be performed by a trained locksmith using an online guide or the vehicle's owner's manual. Professional locksmiths are able to program a replacement or a brand new car key fob quickly. This is the best choice for car owners as they can provide a complete range of services. They can offer a competitive rate and the peace of mind knowing that the replacement key is guaranteed to function. It's important to remember that a lot of vehicles only accept a single key for their system. If you're looking to save money, it's a good idea to buy a spare key fob that functions and have it programmed. You can be assured that the new key works and is programmed for your vehicle. Otherwise, you will need to pay the dealership for replacement keys and programming services. Key Programmers Modern automobiles often require a key programming process to start the system of the vehicle and allow the car to start. In many cases the key needs to be set up by the dealer or an auto locksmith. The key might not function properly or not start the car at all. The reason for this is that the new key has not been programmed to the car's system – and this can be quite costly. It is best to have two keys that are compatible for the modern automobile so that you can program the replacement key when needed. A keyprogrammer is a tool which can reprogram the transponder chip into a new key fob or mechanical key. It also can clone the data of an existing key in order to create duplicates. These are handheld devices that connect to a car's On Board Diagnostics (OBD port). They come with diagnostic software, which allows them to communicate with a computer. They also have a bidirectional interface to work with an immobilizer system. There are a myriad of types of keyprogrammers on the market. They come in all shapes, sizes and colors. Certain keyprogrammers are affordable, while others can cost thousands of dollar. Certain models are specifically designed for certain kinds of vehicles, and they can even provide advanced diagnostics for the electronic systems of the car. Check out the owner's manual to learn how to program the key to your vehicle. Some manufacturers use proprietary software that allows only dealers to create new keys. Other manufacturers make it easy for anyone to do. If you're not able to program a new key on your own, you can ask the dealership to program it for you, but this will be very expensive. Another option is to purchase an online keyprogrammer. They're less expensive than visiting a dealer however, they aren't expensive. Before buying one make sure you research the seller. Some are not reliable and could damage your vehicle. Transponder Chips If your car is made within the last 20 years, then it has a transponder chip inside of it. This is the little plastic piece inside the head of your car key that contains an RFID (Radio Frequency ID) chip with a code unique to the vehicle you own. The chip emits an unintentional radio signal when it is activated by an electromagnetic field. This signal is then taken up by the antenna that is positioned around the ignition barrel of your vehicle. This allows the vehicle's computer system to verify that the transponder chip in the key is the correct one for your particular car. This prevents the vehicle from starting by either hot-wiring or by tampering. The chip in the key also verifies that you are the legitimate owner of the vehicle. This can help to reduce the possibility of theft from your vehicle. Transponder keys appear like normal keys but they have a plastic cap. The chip is located inside the plastic portion of the keys. There are a variety of cuts such as a standard cut Laser cut (also known as a sidewinder or Ford Tibbe), and Ford Tibbe. When car keys cut and programmed is inserted in the ignition barrel, a circuit within of the induction coil will send out a signal. The signal is taken up by the chip, which then transmits a signal the vehicle. If the car's computer detects this signal as the correct one, it will turn off the vehicle immobilizer and allow the engine to begin. If the car doesn't recognize the transponder as being the proper signal, it won't start the engine and will notify you via flashing lights and an alarm. This is designed to deter people from trying to alter the vehicle, but it's not a 100% security measure. A determined and skilled thief could still bypass this system using a special device that intercepts the signal. It is evident that the transponder is an excellent option. Every car owner should take this into consideration when they want to safeguard their investment and minimize the chance of theft. Key Fobs Key fobs today be more than just a way to lock and unlock doors. They can also turn on the car remotely, make chirping noises to help locate a car or switch on the heated steering wheel. A lot of these features may appear convenient, but they can also make it more difficult to keep track of your car keys. Key fobs are able to communicate with each with the car via radio frequencies that are transmitted via an antenna that is located in the center of the key. The signal is encrypted to stop others from intercepting or replicating the signal. There are several ways to program a key fob depending on the make and model. Some cars allow you to do this yourself. However, most newer models require you to visit a professional locksmith or dealer for them program a replacement key fob or an additional one. When you press a key fob's button, the microchip inside transmits an informational code to the car's receiver it is linked to. The receiver compares the information with the 'allowed signals' that are stored on the key fob and then it opens or closes the car door. If the information isn't in line the signals, a chirping sound can be heard and the car isn't permitted to operate. Once the car has been connected to a specific fob, it can only receive signals from that device. In turn, other fobs won't be able to work with the vehicle even if they have the same appearance. This helps to protect the integrity of the car's computer system, and also to stop unauthorized key fobs from gaining control of the vehicle. The majority of newer dealerships will only deal with cars that have original fobs or genuine replacements sold by the manufacturer. It is because the only place with the knowledge to create a replacement fob is in the service department of the dealer. However, some aftermarket fobs typically for older models with less sophisticated systems — can be programmed by the consumer without the need of a dealership.