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How to Program Keys For Cars Automotive specialists or locksmiths are usually the ones who reprogram car keys. They can use a special program to program your new key by using your previous one. The procedure involves reprogramming the blank chip inside the replacement key to match the current settings of your vehicle. Some manufacturers make this easy but others require a locksmith or dealer. Self Programming As the technology of cars has advanced throughout the years, ignition keys have also evolved too. The days of the basic mechanical keys you could make at the hardware shop for less than $10 are long gone. The latest models come with computers that have improved anti-theft security. These cars require a transponder-chip-integrated key to be programmed by a professional locksmith, mechanic or dealer in order to function properly. There are several kinds of car key programming that can be performed by professional locksmiths. Certain types are extremely complex and require sophisticated tools. These tools are not available to the general public and are only used by professionals. This kind of programming is referred to as EEPROM Programming. It requires soldering skills, electronic knowledge and a lot time. Other types of car key programming are a lot simpler and can be accomplished by anyone who is able to. These are usually done by using the onboard diagnostics port which can be accessed with a special key-fob-programming tool. Locksmiths can execute this method with the help of an online guide and the owner's manual. Most professional locksmiths can program a new or replacement car key fob fast and precisely. This is the best option for car owners since they are able to provide a wide range of services. They can provide a reasonable cost and assurance that the replacement key is guaranteed to function. It is important to keep in mind that a majority of vehicles can only accept a single key for their system. Therefore, if you want to save money, it could be better to purchase a functioning spare key fob, and have it programmed by an auto locksmith. This way, you will ensure that the new key is programmed to your car and that it works. You will have to pay the dealer for programming and replacement keys if they don't. Key Programmers Modern cars often require a key programming process to set up the car's system and allow the car to start. In many cases keys must be set up by the dealer or auto locksmith. The key may not work correctly or will not start the car in any way. This is because the key has not yet been programmed into the car's system. This can be costly. It is best to have two keys that work for your modern car so you can program the replacement key whenever needed. A keyprogrammer can recode the transponder chip of an entirely new mechanical key or key fob. It is also able to clone information from an existing key and allow duplicate keys to be made. These are handheld devices that connect to a car's On Board Diagnostics (OBD port). They have diagnostic software that enables them to communicate with the computer and also provide a bidirectional interface for working with the immobilizer system. There are a number of different types of keyprogrammers available that are available and they are available in all shapes and sizes. Some keyprogrammers are cheap and others could cost thousands of dollars. Some are made for specific vehicles and can provide advanced diagnostics of the car's electronic system. Check out the owner's manual to learn how to program the key to your vehicle. Certain manufacturers have proprietary software that only permits dealers to make new keys. Other manufacturers make it easy for anyone to complete. If you're unable to program the new key by yourself or by yourself, you can ask 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 dealership however, they're not cheap. Before purchasing one make sure you research the seller. Some aren't reliable and could cause damage to your vehicle. Transponder Chips If your car is made in the past 20 years, it is likely that it has a transponder inside of it. It's the small piece of plastic in the head of the car key that has an RFID (Radio Frequency ID) chip with a code unique to your car. When it is activated by an electro-magnetic field, the chip emits a low level signal. This signal is then absorbed by a special antenna that is attached to the ignition barrel. The computer system of the vehicle will then confirm that the transponder chip of the key is the right one for your car. This is the reason why from modifying or hot-wiring the ignition system of the vehicle to turn it on. The chip in the key also confirms that you are the legal owner of the vehicle. This helps to reduce the risk of theft from your car. Transponder keys that are regular in shape like regular metal keys with a plastic top. The chip is contained in the plastic portion of the key, and there are different types of cuts on these keys: a cut, a laser cut (also called a sidewinder), or a Ford Tibbe key. When the transponder key is inserted in the ignition barrel, a circuit within of the induction coil sends out an electrical signal. The signal is received by the chip which sends a signal to the vehicle. If the computer on the car detects this signal as the right one, it will disable the immobilizer on the vehicle and allow the engine to start. If the car doesn't recognize the transponder as being the proper signal, it will not start the engine and warn you with flashing lights and a siren. This system is designed to deter those who would attempt to alter the vehicle. However it's not an absolute security measure. A skilled and committed thief may still be able to escape this security system by using a device that can detect the signal. As key programmer can see, there are quite a number of advantages to having a transponder key. This is something that all vehicle owners should think about if they are looking to safeguard their investment and minimize the risk of theft. Key Fobs Key fobs today do more than just lock and unlock doors. They can also start the car remotely, emit chirping sounds to help locate the car or turn on the heated steering wheel. A lot of these features might seem useful, but they can also make it difficult for you to keep track of your car keys. Key fobs utilize radio frequencies to communicate with one another and with the car. These frequencies are transmitted by a small antenna inside the middle of the key. This communication is encrypted, which helps to prevent others from intercepting and replicating the signal. Keyfobs can be programmed in a variety of ways depending on the make and model of your car. You can sometimes do this yourself, but the majority of newer vehicles require an expert locksmith or dealer 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 inside the car that it is paired. The receiver then compares this information with the 'allowed' signals stored inside the fob, and either locks or opens the door. If the data doesn't match an chirping sound is heard and the car isn't allowed to operate. Once the car is paired with a specific fob it will only accept signals from that device. As a result, other fobs won't work with the vehicle, even though they appear similar. This protects the integrity of the computer system that runs the car and blocks the use of unauthorized key fobs to gain control over it. Most newer car dealerships will only accept cars with original fobs or genuine replacements sold by the manufacturer. This is because the only place with the knowledge to create the replacement fob is the service department of the dealer. Some aftermarket fobs, usually those from older models that have less advanced systems can be programmed without the need for a dealer.