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How to keys programmed For Cars Reprogramming the car key typically is the responsibility of a locksmith specialist. They can take your existing key and use a special tool to program a new key for your vehicle. This involves reprogramming a blank chip in your replacement key so that it matches the current settings of your vehicle. Certain manufacturers make this process simple but others require a dealer or locksmith. Self-Programming As the technology of cars has advanced over the years, the ignition keys have evolved too. There are no more simple mechanical-only keys that were made at an hardware store for less than $10. The latest models come with computers that have improved anti-theft security. These cars require a transponder-chip-integrated key to be programmed by a professional locksmith, mechanic or dealer in order to function properly. Professional locksmiths can perform a variety of different types of programming for keys to cars. Certain are complicated and require specialized tools. These tools aren't generally available to the public and are used only by professionals. This kind of programming is referred to as EEPROM Programming. It requires the ability to solder, electronic skills and a lot of time. Other kinds of key programming can be done by anyone. These are done with the onboard diagnostic port, which is accessible with a special tool for key-fob programming. A locksmith can perform this method with the help of an online guide as well as the owner's manual. Professional locksmiths are able to program a replacement or new car key fob swiftly. This is the best option for car owners since they can offer a wide range of services. They can provide a reasonable rate and the security of knowing that the replacement key is guaranteed to work. It is important to keep in mind that a majority of vehicles can only accept one programmed key for their system. If you want to save some money, it's a great idea to buy an extra key fob that works and then have it programmed. This way, you will ensure that the new key has been programmed to your car and that it works. You'll have to pay the dealer for programming and replacement keys if you don't. Key Programmers Modern cars require a key-programming process to start the vehicle's system and then start the vehicle. In certain instances the key needs to be programmed by an auto locksmith or a dealer. The key may not work properly or it may not even start the car in any way. This is because the key has not yet been programmed into the vehicle's system. This can be costly. This is why it's a great idea to have two working keys for a modern automobile, so you can get the replacement key programmed if needed. A keyprogrammer is a tool that recodes the transponder chip into a new mechanical or key fob key. It can also clone the data from an existing key and allow duplicate keys to be made. These devices are handheld units that connect to the 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 interface to work with an immobilizer system. There are many different types of keyprogrammers available on the market and they come in a variety of shapes and sizes. Some are cheap, while others are very advanced and can cost thousands of dollars. Certain models are specifically designed for certain kinds of vehicles and can provide advanced diagnostics for your vehicle's electronic systems. Check out the owner's manual to learn how to program the key to your vehicle. Certain manufacturers have proprietary technology that ensures the dealership is the only entity able to create new keys, however other manufacturers make it fairly easy for anyone to do it on their own. If you are unable to program the new key on your own or by yourself, you can have your dealer do it, but it'll cost you a lot. Another option is to purchase an online keyprogrammer. They are less expensive than visiting a dealer but they aren't expensive. Be sure to look up the seller before buying one. Some aren't reliable and could damage your vehicle. Transponder Chips Transponder chips are likely be found in cars manufactured in the last 20 years. It's the tiny plastic piece in the head of your car key that contains an RFID (Radio Frequency ID) chip with a code unique to your vehicle. When it is activated by an electro-magnetic field the chip emits a low level signal. This signal then gets taken up by the antenna that is attached to the ignition barrel of your vehicle. The computer system in the vehicle will then confirm that the transponder chip of the key is the right one for your vehicle. This prevents the vehicle from being started through hot-wiring or altering the key. The chip in the car key ensures that the owner is the person who owns the vehicle. This can reduce car theft. Transponder keys resemble regular keys made of metal but they have caps made of plastic. The chip is contained within the plastic portion of the keys. There are various cuts such as a standard cut laser cut (also called a sidewinder or Ford Tibbe), and the Ford Tibbe. When the transponder key is inserted in the ignition barrel, a circuit inside 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 computer in the car recognizes the signal as being correct it will turn off the vehicle immobilizer so that the engine can start. If the car isn't able to recognize the transponder as the correct signal, it won't start the engine and alert you with flashing lights and a siren. This system is designed to deter people from tampering with the vehicle. However it's not an unbreakable security measure. A skilled and determined thief could still be able to get around this system employing a device designed to detect the signal. As you can see, there are quite a few advantages to getting transponder keys. All car owners should take this into consideration in order to safeguard their investment and decrease the risk of theft. Key Fobs In addition to locking and unlocking doors, launching the car remotely, or making sound chirps to help locate the car in a parking lot, today's key fobs can also switch on the heated steering wheel or open all windows with just a single press. Many of these extra features may appear convenient but they could make it difficult for you to keep the keys to your car. Key fobs communicate with each with the car via radio frequencies which are transmitted via a small antenna located in the middle of the key. The signal is encrypted to block other key fobs from stealing or modifying the signal. Keyfobs can be programmed in different ways based on the model and brand of your vehicle. Certain cars let you do it yourself. However, the majority of modern models require you to visit an expert locksmith or dealer in order for them program a replacement key fob or an additional one. When you press a key fob's button, the microchip inside transmits a code to the car's receiver that it is linked to. The receiver then compares this information with the signals that are allowed inside the fob, and either locks or opens the door. If the information isn't in line, a chirping sound is heard and the car isn't allowed to operate. Once the car is linked with a specific fob it will only accept signals from the device that is associated with it. This means that other fobs won't work with the vehicle even though they look the same. This safeguards the integrity of the computer system in the car and blocks the use of unauthorized key fobs to gain control of it. Most dealerships with newer cars will only deal with cars that have original fobs, or genuine replacements sold by the manufacturer. This is due to the fact that preparing an appropriate replacement fob requires technical and security knowledge that is only available in the dealer service department. However, some fobs from the aftermarket typically for older models that have less sophisticated systems — can be programmed by consumers without the need for dealers.