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How to Program Keys For Cars Typically, car key reprogramming is the responsibility of a locksmith specialist. They will use a special software to program your new key using your old one. This involves the reprogramming of a blank chip on the replacement key so that it is compatible with the current settings on your vehicle. Certain manufacturers make this simple, while others require a dealer or locksmith. Self-programming As car technology has evolved over time, the ignition keys have also evolved too. Gone are the days of simple mechanical-only keys that were made at the hardware store for less than $10. The latest models are equipped with computers that have improved anti-theft security. To function properly, these cars require that a transponder chip key be programmed to the vehicle by a professional locksmith or mechanic/car dealer. There are a few different types of car keys programming that can be done by locksmiths who are professionals. Certain types are more complex and require specialized tools. These tools are not generally available to the public and are only used by professionals. This type of programming is known as EEPROM Programming. It requires expertise in soldering, electronic knowledge and a lot time. Other types of key programming can be done by anyone. They can be done by using the onboard diagnosis port, which is accessible with a special tool for key-fob programming. This procedure can be carried out by a professional locksmith using an online guide or an owner manual. Professional locksmiths are able to program a replacement or a brand new car key fob swiftly. This is the best option for car owners since they can provide a complete range of services. They can provide a competitive rate and the security of knowing that the replacement key will continue to work. It is important to note that many vehicles will only accept one key that has been programmed for their system. If you're trying to save money, it may be a better idea to purchase a working spare key fob, and have it programmed by an auto locksmith. You can be sure the new key works and is programmable for your car. In the event that it doesn't, you'll need to pay the dealer for replacement keys and programming services. Key Programmers Modern automobiles require a key-programming procedure to set up their systems and to start the car. In some instances the key needs to be programmed by an auto locksmith or a dealer. This is because the key may not function correctly, or it will not start the vehicle in any way. The reason for this is that the new key has not been programmed into the vehicle's system. This can be very costly. This is why it's a good idea to always have two keys that work for a modern car and to have the replacement key programmed when needed. A keyprogrammer can recode the transponder chip on a new mechanical key or key fob. It can also clone information from an existing key in order to create duplicates. These devices are handheld units that connect to the car's On-Board Diagnostics (OBD) port. They are equipped with diagnostic software that allows them to communicate with computers. They also feature a bidirectional user interface for working with an immobilizer system. There are many different types of keyprogrammers available on the market. They come in all shapes, sizes and colors. Some are affordable, while others are very sophisticated and could cost thousands of dollars. Certain models are specifically designed for vehicles and can provide advanced diagnostics of the vehicle's electronic system. Refer to the owner's manual of your vehicle to learn how to program the key to your vehicle. Certain manufacturers have proprietary technology that ensures the dealership is the sole entity that can make new keys, however other manufacturers make it easy for anyone to accomplish it on their own. If you are unable to program a new key on your own You can ask the dealership to do it for you, but this will be very expensive. You can also buy a keyprogrammer from the internet. They're less expensive than visiting a dealer but they aren't inexpensive. Be sure to look up the seller before buying one – some are not reliable and could damage your vehicle. Transponder Chips If your car was manufactured within the past 20 years, chances are it contains a transponder chip within of it. It's the tiny piece of plastic in the head of your car key that houses an RFID (Radio Frequency ID) chip with a code unique to the vehicle you own. When it is activated by an electromagnetic field, the chip emits a low level signal. The signal is received by a specific antenna attached to the ignition barrel. This allows the computer in your vehicle system to determine if the transponder chip in the key is the right one for your particular car. This is what stops hot-wiring or tampering with the ignition system of your vehicle to start it. The chip inside the car key confirms that the owner is the one who is the owner of the vehicle. This can reduce car theft. Regular transponder keys are designed like regular metal keys with a plastic top. The chip is contained within the plastic portion of the keys. There are a variety of cuts that are a standard cut, a Laser cut (also called a sidewinder or Ford Tibbe), and a Ford Tibbe. When car key programing is inserted in the ignition barrel, a circuit within of the induction coil will send out a signal. The signal is absorbed by the chip, which then transmits a signal to the vehicle. If the computer onboard the car recognizes the signal as valid it will turn off the vehicle immobilizer so that the engine can start. If the car does not recognize the transponder signal as being the correct one, it will keep the engine from running and will notify you by flashing its lights and sounding siren. This feature is designed to discourage those who would attempt to alter the vehicle. However, it is not an absolute security measure. A determined and skilled thief could still evade this system using a special device that blocks the signal. As you can see there are quite number of advantages to having transponder keys. Every car owner should consider this in order to safeguard their investment and decrease theft risk. Key Fobs Key fobs today can offer more than locking and unlock doors. They can also start the vehicle remotely, make chirping noises to help locate cars, or turn on the heated steering wheel. A lot of these features may appear convenient but they could make it difficult for you to keep the track of your car keys. Key fobs communicate with each with the car via radio frequencies which are transmitted through an antenna that is located in the middle of the key. This communication is encrypted, which helps stop others from stealing and retransmitting the signal. You can program a keyfob in different ways based on the make and model of your vehicle. Certain cars let you do this yourself. However, most newer models require you to visit a professional locksmith or dealer in order for them program a replacement key fob, or an alternative one. When you press the button on a key fob the microchip sends an indication to the receiver in the vehicle with which it is paired. The receiver compared 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 data does not match the fob's information, the car won't be allowed to drive. Once the car is connected to a specific fob, it can only receive signals from that device. Other fobs won't work with the car, even if they appear like. This ensures the security of the computer system of the car and blocks the use of unauthorized key fobs to gain control over it. Most newer car dealers will only work on a car with original fobs or genuine replacements that are supplied by the manufacturer. The reason for this is that the only place with the expertise to prepare an appropriate replacement fob is the service department of the dealer. However, some aftermarket fobs typically for older models that have less sophisticated systems can be programmed by customers without the need for dealers.