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How to Program Keys For Cars Typically, car key reprogramming is the job of a locksmith specialist. They can make use of a specific program to program your new key with your old one. The process involves reprogramming the chip in your replacement key to fit the current settings of your vehicle. Certain manufacturers make it simple, while other require a locksmith or dealer. Self-Programming The ignition keys have changed along with the car technology. There are no more simple mechanical-only keys that were made at the hardware store for less than $10. The latest models come with computers that have improved anti-theft security. In order to work correctly, these vehicles require a transponder chip-integrated key be programmed into the vehicle by a professional locksmith or a car dealer/mechanic. Professional locksmiths can carry out various types of programming for keys to cars. Some are very complex and require sophisticated tools. These tools are generally not accessible to the general public and are only used by professionals. This type of programming is known as EEPROM Programming. It requires the ability to solder, electronic skills and a significant amount of time. Other types of programming for car keys are a lot simpler and can be accomplished by the average person. These are done using the onboard diagnostic port, which can be accessed via a tool specifically designed for key fob programming. This method can be done by a locksmith who is trained with the help of an online guide or an owner's manual. Professional locksmiths can program a replacement or a brand new car key fob quickly. This is the best option for a vehicle owner since they are able to provide a full range of services. They also provide a competitive cost and assurance that the replacement key will function properly. It's important to remember that many vehicles will only accept one programmed key for their system. If you're trying to save money, it could be a better idea to buy a spare key fob, and have it programmed by an auto locksmith. You can be assured that the new key will work and is programmed for your car. If not, you'll have to pay the dealership for replacement keys and programming services. Key Programmers Modern vehicles require a key-programming process to set up their systems and start the car. In certain instances the key needs to be programmed by an auto locksmith or a dealer. The key might not function correctly or will not start the car in any way. The reason for this is that the new key hasn't been programmed into the vehicle's system. This can be quite costly. It's best to have two keys that are compatible for the modern automobile so that you can program the replacement key whenever needed. Keyprogrammers are devices that recodes the transponder chip into an entirely new key fob or mechanical key. It can also clone the information from an existing key which allows duplicate keys to be created. These are handheld devices connected to a car's On Board Diagnostics (OBD port). They have diagnostic software that enables them to communicate with the computer and also provide an interface that works bidirectionally with the immobilizer system. There are many various kinds of keyprogrammers that are available and they are available in all shapes and sizes. Some keyprogrammers are cheap and others can cost thousands of dollar. Some are made for specific vehicles and can provide advanced diagnostics of the vehicle's electronic system. Check out the owner's manual to learn how to program a key for your vehicle. Some manufacturers use proprietary software that allows only the dealership to make new keys. Other manufacturers make it easy for anyone to do. If you are unable to program the new key yourself, then you can request your dealer to do it, but it will cost you a lot. You can also buy a keyprogrammer from the internet. They are cheaper than visiting a dealer but they aren't expensive. Be sure to investigate the seller prior to purchasing one. Some aren't reliable and could harm your car. Transponder Chips If your car is made in the last 20 years, it is likely that it contains a transponder chip within of it. This is a little piece of plastic inside the head of your key which contains a RFID (Radio Frequency Identification) chip with a unique code for your particular vehicle. The chip sends out a low-level radio signal when it is activated by an electromagnetic field. This signal is then absorbed by the special antenna that is attached to the barrel that controls your ignition in your vehicle. This allows the computer in your vehicle system to verify that the transponder chip that is in the key is the right one for your particular car. This stops the vehicle from being started by hot-wiring or manipulating. The chip inside the car key verifies that the owner is the person who owns the vehicle. car key programming helps to reduce the risk of theft from your car. Regular transponder keys are shaped like regular metal keys with a plastic top. The chip is contained inside the plastic portion of the key, and there are a few different types of cuts on these keys: a regular standard cut, a laser cut (also called a sidewinder key), or a Ford Tibbe key. A circuit inside the induction coil will emit a signal when the transponder is placed in the an ignition barrel. The signal will then get received by the chip and cause it to send a signal back to the car. If the onboard car computer recognizes this signal as the correct one, it will turn off the vehicle immobilizer and allow the engine to begin. If the vehicle doesn't recognize the transponder signal as being the proper one, it will stop the engine from starting and will alert you by flashing its lights and sounding an alarm. This is designed to discourage people from trying to alter the vehicle, but it's not a 100% security measure. A skilled and committed thief may still be able to get around this system using a device that can detect the signal. You can see that a transponder is a great option. This is something that all vehicle owners should consider if want to protect their investment and decrease the risk of theft. Key Fobs In addition to locking and unlocking doors, launching the car from a distance or making chirping sounds to help find the car in a parking space keys of today can also switch on a heated steering wheel, or roll down all of the windows with just a single push. These additional features can make it difficult for you to find your car keys. Key fobs communicate with each other and the car using radio frequencies which are transmitted through a small antenna located in the center of the key. The transmission is encrypted, which helps to prevent others from intercepting and re-transmitting the signal. Keyfobs can be programmed in different ways based on the model and make of your car. It is possible to do this yourself, but most newer automobiles require a dealer or professional locksmith to program a replacement or a second fob. When you press the button on a key fob, the microchip transmits an indication to the receiver inside the vehicle with which it is linked. The receiver compares this information to the signals that are allowed inside the fob, and either opens or closes the door. If the information isn't in line the signals, a chirping sound can be heard and the car isn't permitted to operate. Once automotive key programming has been connected to a specific fob, it will only accept signals from the device. This means that other fobs will not work with the vehicle even though they appear similar. This protects the integrity of the car's computer system, and also to stop unauthorized key fobs from gaining control of the vehicle. The majority of car dealers who are newer will only work on a car with original fobs or genuine replacements that are offered by the manufacturer. This is due to the fact that preparing a replacement fob requires technological and security expertise which can only be obtained in the dealer service department. Some fobs from the aftermarket, especially those from older models that have less advanced systems can be programmed without the need for a dealer.