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How to Program Keys For Cars Typically, car key reprogramming is the job of a locksmith specialist. They can take your existing key and then use a special tool to program a new one for your vehicle. This involves reprogramming a blank chip in your replacement key so that it is compatible with the current settings of your vehicle. Certain manufacturers make this simple but others require a locksmith or dealer. Self-Programming As the technology of cars has advanced over time, the ignition keys have evolved too. The days of simple mechanical keys you could buy from a hardware store for less than $10 have gone. Newer models are equipped with computers that have improved anti-theft protection. The cars require a transponder chip-integrated key to be programmed by a professional locksmith, mechanic or dealer to function properly. Professional locksmiths can perform a variety of different types of programming for keys to cars. Certain types are more complex and require advanced tools. These tools aren't generally accessible to the general public and are utilized only by professionals. This kind of programming is known as EEPROM Programming. It requires soldering skills, electronic knowledge and a lot of time. Other types of programming car keys are much simpler and can be done by anyone who is able to. They are accomplished using the onboard diagnostic port, which can be accessed with a special tool for key-fob programming. This procedure can be carried out by a locksmith who is trained with the help of an online guide or the vehicle's owner's manual. Professional locksmiths can program a replacement or a brand new car key fob in a short time. This is the most efficient option for a vehicle owner since they can offer a wide range of services. They can offer a competitive rate and the assurance that the replacement key is guaranteed to work. Be aware that most vehicles only accept one programmed car key. If you're trying to save money, it might be better to purchase a working spare key fob and then have it programmed by an auto locksmith. This way, you can be certain that the new key has been programmed to your car and that it will work. You will have to pay the dealer for programming and replacement keys if you don't. Key Programmers Modern cars require a key-programming procedure to initialize their vehicle's systems and to start the car. In some cases the key will have to be programmed by an auto locksmith or dealer. This is because the key could not function correctly or start the car at all. This is because the key has not yet been programmed into the vehicle's system. This could be costly. This is why it's a great idea to always have two keys that work for modern vehicles and have the replacement key programmed when required. A keyprogrammer can recode the transponder chip on the new mechanical key or key fob. It is also able to copy the data of an existing key to make duplicates. These devices are handheld units that connect to the car's On-Board Diagnostics (OBD) port. They come with diagnostic software that allows them to communicate with a computer. They also feature a bidirectional user interface that works with an immobilizer system. There are many different types of keyprogrammers that are available on the market. They come in all sizes, shapes, and colors. Some are cheap and others are sophisticated and could cost thousands of dollars. Some are made for specific automobiles and provide advanced diagnostics of the vehicle's electronic system. If you're interested in programming a new key to your vehicle, consult the owner's manual to find out the procedure. Certain manufacturers have proprietary technology that ensures the dealership is the only entity that can make new keys. However, other manufacturers make it fairly easy for anyone to do it themselves. If you're unable to program the new key on your own or by yourself, you can have your dealer do it, but it will cost a lot. Another option is to purchase an online keyprogrammer. These are less expensive than visiting a dealership however they're expensive. Before purchasing one, do some research on the seller. Some are not reliable and could damage your vehicle. Transponder Chips If your car is made within the last 20 years, it is likely that it has a transponder inside of it. It's a tiny plastic thing inside the head of your key that contains an RFID (Radio Frequency Identification) chip with an individual code for your specific vehicle. The chip emits a low-level radio signal when it is activated by an electromagnetic field. The signal is then taken up by the antenna that is positioned around the barrel that controls your ignition in your vehicle. This allows the computer in your vehicle system to confirm that the transponder chip inside the key is the right one for the car you have. This stops the vehicle from being started by hot-wiring, or by altering the key. The chip in the key also confirms that you are the legitimate owner of the vehicle. This will help reduce the possibility of theft from your vehicle. Regular transponder keys are shaped like regular metal keys with a plastic top. The chip itself is housed inside the plastic portion of the key, and there are a few different cuts that can be found on the keys: a cut laser cut (also called a sidewinder), or a Ford Tibbe key. When just click the next article is inserted in the ignition barrel, a circuit within of the induction coil will send out an electrical signal. The signal will be absorbed by the chip and cause it to transmit a signal back to the car. If the computer inside the car detects the signal as correct, it will disable vehicle immobilizer so that the engine can start. If the car isn't able to recognize the transponder as a valid signal, it will not start the engine, and will warn you with flashing lights and siren. This function is designed to discourage individuals from tampering with the vehicle. However it isn't an absolute security measure. A skilled and determined criminal may still be able to escape this security system by using a device that can intercept the signal. It is evident that a transponder is a great option. This is something that all car owners should consider if they want to safeguard their investment and decrease the risk of theft. Key Fobs In addition to locking and unlocking doors, starting the car remotely, or making noises to aid in finding a car in a parking space Key fobs today can also switch on the heated steering wheel or roll down all of the windows with just a single push. A lot of these features may seem convenient but they could make it harder for you to keep the keys to your car. Key fobs are able to communicate with each other and the car using radio frequencies that are transmitted through an antenna that is located in the center of the key. The signal is encrypted to block other key fobs from stealing or modifying the signal. There are many ways to program a key fob based on the vehicle's model and make. You may be able to do it yourself, but the majority of newer cars require that you visit a dealer or professional locksmith to program a replacement or an additional fob. When you press the button on a key fob the microchip sends an indication to the receiver in the vehicle that it is paired. The receiver then compares this information to the 'allowed' signals stored in the fob and then either opens or locks the door. If the information does not match the fob's information, the car won't be allowed to run. Once the car is paired with a specific fob it will only receive signals from that device. As key programmer , other fobs won't work with the vehicle even though they look the same. This helps to protect the integrity of the vehicle's computer system, and also to stop the use of unauthorized key fobs to gain control of the vehicle. Most newer car dealers will only work on a car with original fobs or genuine replacements supplied by the manufacturer. This is due to the fact that preparing an appropriate replacement fob requires technical and security skills that is only available in the dealer's service department. Some fobs from the aftermarket, especially ones for older models that have less advanced systems can be programmed without the need for a dealership.