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How to Program Keys For Cars Typically, car key reprogramming is the responsibility of a locksmith specialist. They can use a special software to program your new key with your old one. This involves changing the chip inside the replacement key so that it is compatible with the current settings on your vehicle. Certain manufacturers make this process simple but others require a locksmith or dealer. Self-programming As car technology has evolved over time, the ignition keys have developed too. The days of simple mechanical keys you could purchase from the hardware shop for less than $10 are gone. The latest models come with computer systems that are more secure against theft. In order to work properly, these cars require a transponder chip-integrated key be programmed into the vehicle by a certified locksmith or car dealer/mechanic. Professional locksmiths can perform various kinds of programming for car keys. Some are complex and require advanced tools. These tools are not generally accessible to the general public and are used only by professionals. This type of programming is known as EEPROM Programming. It requires soldering skills, electronic knowledge and a lot of time. Other types of key programming can be carried out by anyone. They are typically accomplished by using the diagnostics port on the car, that can be accessed using the key-fob-programming device. Locksmiths can execute this procedure with the help of a guide online and the owner's manual. Professional locksmiths are able to program a replacement or a brand new car key fob quickly. This is the best choice for owners of vehicles as they can provide a complete range of services. They also provide a competitive price and ensure that the replacement key will work properly. Be aware that most vehicles can only accept a single programmed car key. Therefore, if you want to save money, it might be a better idea to purchase a working spare key fob, and have it programmed by an auto locksmith. This way, you can ensure that the new key has been programmed to your vehicle and that it will work. In the event that it doesn't, you'll need to pay the dealership for replacement keys and programming services. Key Programmers Modern cars require a key-programming process to set up their systems and to start the car. In a number of cases the key needs to be configured by the dealer or auto locksmith. The key may not function correctly or will not start the vehicle at all. The reason for this is that the new key has not been programmed to the automobile's system. This can be quite costly. This is why it's a good idea to always have two working keys for a modern car, so you can get the replacement key programmed when necessary. A keyprogrammer is a device that can recode the transponder chip on the form of a new mechanical or key fob key. It can also clone information from an existing key in order to create duplicates. These devices are handheld units that connect to the car's On-Board Diagnostics (OBD) port. They are equipped with diagnostic software that allows them to communicate with a computer. They also have a bidirectional interface that works with an immobilizer system. There are a myriad of types of keyprogrammers available on the market. They come in all shapes, sizes and colors. Some are inexpensive and others are sophisticated and can cost thousands of dollars. G28 are designed for specific automobiles and offer advanced diagnostics of the car's electronic system. If you want to program an entirely new key for your vehicle, consult the owner's manual to find out the procedure. Some manufacturers use proprietary software that allows only the dealership to make new keys. Other manufacturers make it simple for anyone to do. If you are unable to program the new key yourself and you are unable to do it, then request your dealer to do it, but it'll cost a lot. Another option is to buy a keyprogrammer online. They're less expensive than visiting a dealer, but still not inexpensive. Be sure to research the seller before purchasing one – some are not reliable and could harm your vehicle. Transponder Chips Transponder chips can be found in vehicles manufactured within the past 20 years. It's the small plastic piece inside the head of the car key that has an RFID (Radio Frequency ID) chip that has a unique code to your vehicle. When activated by an electro-magnetic field, the chip emits a low-frequency signal. The signal is then taken up by the antenna that is positioned around the ignition barrel of your vehicle. 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 is what stops hot-wiring or tampering with the ignition system of the vehicle to turn it on. The chip inside the car key confirms that the owner is the person who owns the vehicle. This will help reduce car theft. Regular transponder keys are designed like regular keys, but with a plastic top. The chip is located inside the plastic part of these keys. There are several different cuts that are a standard cut, Laser cut (also called a sidewinder or Ford Tibbe) and the Ford Tibbe. A circuit inside the induction coil will emit an electrical signal when the transponder is placed in the the ignition barrel. The signal will then get absorbed by the chip and cause it to send a signal back to the car. If the onboard car computer recognizes this signal as being the correct one, it will shut down the vehicle's immobilizer and allow the engine to start. If the vehicle does not recognize the transponder signal as the right one, it will stop the engine from running and will notify you by flashing its lights and sounding siren. This is designed to discourage people from attempting to hack into the vehicle, but it isn't a foolproof security measure. A skilled and committed thief may still be able to get around this system using a special device to detect the signal. It is evident that the transponder is an excellent option. Every car owner must take this into consideration in order to safeguard their investment and reduce the risk of theft. Key Fobs In addition to locking and unlocking doors, launching the car remotely, or making noises to aid in finding a car in a parking lot keys of today can also switch on a heated steering wheel, or open all windows with a single push. These extra features could make it difficult to find your car keys. Key fobs use radio frequencies to connect with one another and with the car. The frequencies are transmitted via a small antenna that is located within the middle of the key. The communication is encrypted, which helps to prevent others from intercepting and replicating the signal. Keyfobs can be programmed in different ways based on the make and model of your car. You may be able to do it yourself, but the majority of newer vehicles require a dealer or professional locksmith to program a replacement or a second fob. When you hit the button on a key fob it transmits a code to the car's receiver that it is linked to. The receiver compared this information with the 'allowed' signals stored on the fob and either locks or opens the door. If the information doesn't match, a chirping sound is heard and the car isn't permitted to operate. When a car is connected with a specific fob it will only receive signals from that device. Other fobs will not work with the car, despite the fact that they look similar. This protects the integrity of the computer system of the vehicle and stops unauthorised key fobs from taking control over 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 preparing the replacement fob is a process that requires technological and security skills which can only be obtained in the dealer service department. However, some fobs from the aftermarket that are typically designed for older models that have less sophisticated systems can be programmed by customers without the need for dealers.