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How to Program Keys For Cars Typically, car key reprogramming is the job of a locksmith specialist. They could take your old key and then use a special tool to program a new one for your vehicle. The procedure involves reprogramming the blank chip inside your replacement key to fit the current settings of your vehicle. Some manufacturers make this easy, while others require a locksmith or dealer. Self Programming The ignition keys have changed as has the technology of cars. Gone are the days of simple mechanical-only keys that were made at a hardware store for under $10. Modern models come with computers that have improved anti-theft protection. To function properly, these cars require that a transponder chip-integrated key be programmed to the vehicle by a certified locksmith or mechanic/car dealer. Professional locksmiths can perform various types of programming for keys for cars. Some are complex and require advanced tools. These tools aren't usually accessible to the general public and are only used by professionals. This kind of programming for car keys is referred to as EEPROM Programming and requires soldering, electronic knowledge and a lot of time. Other kinds of programming car keys are much simpler and can be accomplished by the average person. They are typically done using the onboard diagnostics port, which can be accessed with an instrument for programming keys. A locksmith can perform this method with the assistance of an online guide as well as the owner's manual. Locksmiths with experience can program a brand new or replacement car key fob quickly and precisely. This is the best option for owners of vehicles as 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 keep in mind that a majority of vehicles can only accept one key that has been programmed for their system. If you want to save some cash, it's a good idea to purchase an extra key fob that works and have it programmed. This way, you will be sure that the new key is programmed to your vehicle and that it will work. You'll need to pay the dealer for programming and replacement keys if you do not. Key Programmers Modern automobiles require a key-programming process to set up their systems and then start the vehicle. In some cases, the key will need to be programmed by an auto locksmith or a dealer. This is because the key may not function properly or start the car at all. The reason for this is that the new key hasn't been programmed into the vehicle's system – and this can be quite costly. This is why it's a good idea to always have two keys working for modern vehicles and have the replacement key programmed if necessary. A keyprogrammer is a tool which can reprogram the transponder chip on an entirely new key fob or mechanical key. It is also able to clone information from an existing key and allow duplicate keys to be created. 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 number of different kinds of keyprogrammers that are available, and they come in a variety of sizes and shapes. program car keys are affordable while others are advanced and can cost thousands of dollars. Certain are designed for specific automobiles and provide advanced diagnostics of the vehicle's electronic system. If you're looking to program a new key to your vehicle, refer to the owner's manual to learn the procedure. Certain manufacturers employ proprietary software that allows only dealers to make new keys. Other manufacturers make it simple for anyone to complete. If you're unable to program the new key on your own, then you can ask your dealer to do it, but it'll be very costly. You can also purchase an online keyprogrammer. These are cheaper than going to a dealer however, they're not cheap. Be sure to look up the seller before buying one – some are not reliable and could harm your car. Transponder Chips Transponder chips can be found in cars manufactured within the past 20 years. It's the tiny plastic piece in the head of your car key that houses an RFID (Radio Frequency ID) chip with a unique code for your car. The chip sends out an unintentional radio signal when it is activated by an electromagnetic field. This signal is then taken up by an antenna that is attached to the ignition barrel. This allows the car's computer system to verify that the transponder chip in the key is the correct one for the car you have. This prevents the vehicle from being started through either hot-wiring or by manipulating. The chip inside the key also confirms that you are the legitimate owner of the vehicle. This helps to prevent car theft. Transponder keys appear like normal keys but they have caps made of plastic. The chip is contained within the plastic part of these keys. There are a variety of cuts: a standard cut, a Laser cut (also known as a sidewinder or Ford Tibbe), and Ford Tibbe. The circuit in the induction coil emits an electrical signal when the transponder is inserted into ignition barrel. The signal is taken up by the chip, which then transmits a signal to the vehicle. If the computer on the car detects this signal as the right one, it will shut down the immobilizer on the vehicle and allow the engine to begin. If the vehicle doesn't recognize the transponder signal as the proper one, it will prevent the engine from starting and will notify you by flashing its lights and sounding an alarm. This feature is designed to deter people from trying to alter the vehicle, however it's not a 100% security measure. A skilled and determined thief can still get around this system using a special device that intercepts the signal. It is evident that a transponder is a great option. This is something that all car owners should consider if want to protect their investment and minimize the chance of theft. Key Fobs Key fobs today can do more than just lock and unlock doors. They can also start the car from a distance, make chirping sounds to aid in finding a car or turn on the heated steering wheel. These additional features can make it difficult to find your car keys. Key fobs utilize radio frequencies to connect with one another and with the car. The frequencies are transmitted through a small antenna located inside the middle of the key. The transmission is encrypted, which helps keep others from stealing and replicating the signal. Keyfobs can be programmed in different ways based on the model and make of your car. You can sometimes do this yourself, however most modern cars require that you visit a dealer or professional locksmith to program a replacement or additional fob. When you press a key fob's button, the microchip inside transmits an encoded code to the car's receiver it is linked to. The receiver compared the information with the 'allowed signals' stored in the key fob and then locks or opens the car's door. If the information doesn't match the fob's information, the car won't be allowed to run. When a car is connected with a specific fob, it will only receive signals from that specific device. Other fobs will not work with the car, even though they look like. This protects the integrity of the car's computer system, and also to stop unauthorized key fobs from gaining control of the vehicle. Most newer car dealerships will only deal with vehicles that have original fobs or genuine replacements sold by the manufacturer. This is due to the fact that preparing the replacement fob is a process that requires technological and security knowledge which can only be obtained in the dealer service department. Some fobs from the aftermarket, especially those for older models with less advanced systems can be programmed without the need for a dealership.