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How to Program Keys For Cars Typically, car key reprogramming is the job of a locksmith specialist. They will use a special software to program the new key using your old one. This involves reprogramming a blank chip in the replacement key so that it matches the current settings of your vehicle. Certain manufacturers make this simple, while others require a dealer or locksmith. Self Programming The ignition keys have changed as has the technology of cars. The days of basic mechanical keys you could make at a hardware store for less than $10 have gone. The newer models have computers with improved anti-theft protection. These cars require a transponder-chip-integrated key to be programmed by a professional locksmith car dealer or mechanic in order to function properly. There are several types of car keys programming that can be performed by locksmiths who are professionals. Some are complex and require specialized tools. These tools are usually not accessible to the general public and are only used by professionals. This type of key programming is called EEPROM Programming. It requires soldering skills, electronic knowledge and a significant amount of time. Other types of key programming can be performed by anyone. These are done using the onboard diagnostic port, which can be accessed via a tool specifically designed for key-fob programming. A locksmith can perform this method with the assistance of a guide online and the owner's manual. The majority of locksmiths who are professionals can program a brand new or replacement car key fob swiftly and accurately. This is the best choice for car owners as they can provide a complete range of services. They also can provide a competitive cost and assurance that the new key will work properly. Be aware that most automobiles only accept one programmed car key. If you want to save money, it's a great idea to get an additional key fob that works and then program it. You can be certain that the new key will function and is compatible with your car. You will have to pay the dealer for programming and replacement keys if they don't. Key Programmers Modern vehicles typically require a key programming process to initialize the vehicle's system and allow the car to begin. In some instances, the key must be programmed by the auto locksmith or dealer. This is because the key may not function correctly, or it will not start the car in any way. The reason is because the new key hasn't been programmed to the car's system. This can be very costly. This is why it's a good idea to always have two working keys for modern vehicles and have the replacement key programmed if necessary. A keyprogrammer can recode the transponder chip of a new mechanical key or key fob. It is also able to copy 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 a computer. They also have a bidirectional user interface for working with an immobilizer system. There are a myriad of types of keyprogrammers available on the market. They are available in a variety of shapes, sizes and colors. Some are inexpensive, while others can cost thousands of dollar. Certain models are specifically designed for certain types of cars, and they can even provide advanced diagnostics for your car's electronic systems. If you're interested in programming the new key into your vehicle, consult the owner's manual for instructions on how. Certain manufacturers employ proprietary software that only permits the dealership to create new keys. Other manufacturers make it easy for anyone to do. If you are not able to program the new key by yourself or by yourself, you can have your dealer do it, but it'll cost you a lot. Another option is to purchase a keyprogrammer online. They are cheaper than visiting a dealership, but still not expensive. Be sure to investigate the seller prior to purchasing one – some are not reliable and could harm your vehicle. Transponder Chips If your car was built within the last 20 years, then it has a transponder chip inside of it. It's a small plastic thing in the head of your key that contains a RFID (Radio Frequency Identification) chip with a unique code that is specific to the specific vehicle you own. When it is activated by an electro-magnetic field the chip emits a low level signal. The signal is received by a specific antenna attached to the barrel of ignition. The computer system of the vehicle will then confirm that the chip in the key's transponder is the right one for your vehicle. This stops the vehicle from being started by hot-wiring or manipulating. The chip in the key also confirms that you are the legitimate owner of the vehicle. This can reduce car theft. Transponder keys appear like normal keys but have caps made of plastic. The chip is contained within the plastic part of the key, and there are a few different cuts that can be found on these keys: a cut laser cut (also known as a sidewinder key) or Ford Tibbe key. When the transponder key is placed in the ignition barrel, a circuit within of the induction coil will send out the signal. The signal will then get absorbed by the chip and cause it to transmit a signal to the car. If the computer inside the car recognizes the signal as being correct it will turn off the car immobilizer to allow the engine start. If the vehicle does not recognize the transponder signal as being the proper one, it will prevent the engine from starting and will notify you by flashing its lights and sounding a siren. This feature is designed to discourage individuals from tampering with the vehicle. However, it is not an unbreakable security measure. A determined and skilled thief could still evade this system with a specially designed device that blocks the signal. As you can see there are quite few advantages to getting a transponder key. This is something that all car owners should consider if they want to protect their investment and reduce the chance of theft. Key Fobs Key fobs today can be more than just a way to lock and unlock doors. They can also start the car remotely, make chirping noises to help locate cars, or turn on the heated steering wheel. Many of these extra features might seem useful but they could make it harder for you to keep track of your car keys. Key fobs make use of radio frequencies to communicate with one another and with the car. These frequencies are sent through a small antenna located inside the middle of the key. This communication is encrypted, which helps prevent others from intercepting and re-transmitting the signal. You can program a keyfob in different ways based on the model and make of your vehicle. Certain cars let you do this by yourself. However, most newer models require you to visit an expert locksmith or dealer for them program a replacement key fob, or an alternative one. When you press the button on your key fob the microchip inside sends an informational code to the car's radio that it is linked to. The receiver then compares this information with the 'allowed' signals stored inside the fob, and 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 connected to a specific fob, it will only accept signals from that device. Other fobs won't work with the car, even if they look similar. This protects the integrity of the computer system of the car and prevents the use of unauthorized key fobs to gain control of it. Most newer car dealerships will only deal with vehicles that have original fobs or genuine replacements offered by the manufacturer. The reason for this is that the only place that has the knowledge to create a replacement fob is in a dealer's service department. However, car key programming that are typically designed for older models that have less sophisticated systems can be programmed by the consumer without the need for a dealership.