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How to Program Keys For Cars Typically, car key reprogramming is the work of a locksmith or automotive specialist. program a car key can take your old working key and use a specific tool to program a new key for your vehicle. This involves the reprogramming of a blank chip on your replacement key to ensure that it is compatible with the current settings of your vehicle. Some manufacturers make it simple for you, while others require a locksmith or dealer. Self-programming As car technology has evolved throughout the years, ignition keys have evolved too. The days of simple mechanical-only keys that could be manufactured at an hardware store for less than $10. Modern models come with computers that are enhanced anti-theft protection. The cars require a transponder chip-integrated key to be programmed by a professional locksmith mechanic or dealer for proper operation. There are several types of car key programming that can be done by locksmiths who are professionals. Some are extremely complicated and may require sophisticated tools. These tools aren't generally available to the public and are only used by professionals. This type of programming is referred to as EEPROM Programming. It requires expertise in soldering, electronic knowledge and a lot time. Other types of key programming can be performed by anyone. These are usually done by using the diagnostics port on the car, which is accessible with a special key-fob-programming tool. This method can be done by a trained locksmith with the help of 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 ideal option for owners of vehicles as they can offer a full range of services. They can provide a competitive price and security of knowing that the replacement key is guaranteed to work. Be aware that most automobiles only accept one programmed car key. So, if you're looking to save money, it may be a better idea to buy a spare key fob and then have it programmed by an auto locksmith. You can be sure the new key works and is programmed for your vehicle. You will have to pay the dealer for programming and replacement keys if you do not. Key Programmers Modern automobiles require a key-programming procedure to set up their systems and to start the car. In certain instances the key will have to be programmed by an auto locksmith or a dealer. This is because the key might not work properly, or it will not start the vehicle at all. The reason is because 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 have two working keys for modern vehicles and to have the replacement key programmed when necessary. Keyprogrammers can recode the transponder chip of a new mechanical key or key fob. It can also clone the data of an existing key to make duplicates. These are handheld devices connected to a 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 myriad of types of keyprogrammers that are available on the market. They are available in a variety of shapes, sizes and colors. Some keyprogrammers are cheap while others may cost thousands of dollars. Certain models are specifically designed for certain types of cars, and they can even offer advanced diagnostics for the electronic systems of the car. Refer to the owner's manual of your vehicle to learn how to program the key to your vehicle. Some manufacturers use proprietary software that only permits dealers to create new keys. Other manufacturers make it simple for anyone to do. If you are not able to program the new key on your own and you are unable to do it, then have your dealer do it, but it'll cost a lot. Another option is to buy an online keyprogrammer. They are less expensive than visiting a dealer however, they aren't cheap. Make sure you investigate the seller prior to purchasing one – some are not reliable and could damage your vehicle. Transponder Chips Transponder chips can be found in cars that were manufactured within the last 20 years. This is the little piece of plastic in the head of your car key that contains an RFID (Radio Frequency ID) chip that has a unique code to your vehicle. The chip emits an low-level radio signal once it is activated by an electromagnetic field. The signal is then taken up by an antenna attached to the ignition barrel. The computer system of the vehicle will then confirm that the key's transponder chip is the right one for your car. This is what stops from modifying or hot-wiring the ignition system of your vehicle to get it started. The chip inside the key confirms that the owner is the one who owns the vehicle. This will help reduce car theft. Transponder keys that are regular in shape like regular metal keys with an outer layer of plastic. The chip is contained within the plastic part of the key and there are different cuts that can be found on the keys: a cut laser cut (also called a sidewinder key), or a Ford Tibbe key. When the transponder key is placed in the ignition barrel, a circuit inside of the induction coil will send out the signal. The signal will be received by the chip and cause it to send a signal back to the car. If the onboard car computer recognizes this signal as the right one, it will turn off the immobilizer on the vehicle and allow the engine to begin. If the vehicle doesn't 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 intended to deter people from trying to hack into the vehicle, but it is not a foolproof security measure. A skilled and determined criminal might be able get around this system employing a device designed to detect the signal. As you can see there are quite a number of benefits to having transponder keys. Every car owner should consider this when they want to safeguard their investment and minimize the risk of theft. Key Fobs Key fobs today be more than just a way to lock and unlock doors. They can also start the vehicle remotely, emit chirping sounds to aid in finding cars, or turn on the heated steering wheel. A lot of these additional features might seem useful but they could make it more difficult to keep track of your car keys. Key fobs are able to communicate with each other and the car using radio frequencies that are transmitted through a small antenna located in the middle of the key. The signal is encrypted to prevent others from stealing or stealing the signal. There are several ways to program a key fob, based on the vehicle's make and model. Some cars allow you to do this yourself. However, most newer models require you to visit an expert locksmith or dealer to program a new key fob, or an alternative one. When you press the button on a key fob, the microchip sends a signal to the receiver in the vehicle with which it is linked. The receiver compared the information with the permitted signals stored in the key fob, and then locks or opens the car's doors. If the information isn't in line the signals, a chirping sound can be heard and the car isn't allowed to operate. Once the car is linked with a specific fob, it will only accept signals from that device. As a result, other fobs won't work with the vehicle, even though they have the same appearance. This ensures the security of the computer system in the car and blocks the use of unauthorized key fobs to gain control of it. The majority of newer dealerships will only deal with cars that have original fobs, or genuine replacements supplied by the manufacturer. This is because the process of creating a replacement fob requires technological and security expertise which can only be obtained in the dealer service department. Certain aftermarket fobs, typically those for older models with less sophisticated systems, can be programmed without the need for a dealer.