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How to Program Keys For Cars Reprogramming the car key typically is the responsibility of a locksmith or an automotive specialist. They will 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 matches the current settings on your vehicle. Some manufacturers make it simple, while other require the assistance of a locksmith or dealer. Self Programming The ignition keys have evolved along with the car technology. There are no more simple mechanical-only keys that were made at an hardware store for less than $10. 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 to function properly. There are several types of car keys programming that can be done by professional locksmiths. Some are complex and require sophisticated tools. These tools are not generally available to the public and are utilized only by professionals. This kind of programming is referred to as EEPROM Programming. It requires expertise in soldering, electronic knowledge and a lot of time. Other types of key programming can be carried out by anyone. They are typically done using the onboard diagnostics port which can be accessed with an instrument for programming keys. This procedure can be carried out by a professional locksmith using an online guide or the car's owner's manual. Professional locksmiths can program a new or replacement car key fob quickly. This is the best option for vehicle owners as they are able to provide a wide range of services. They can provide a competitive price and assurance that the replacement key is guaranteed to work. Remember that most automobiles only accept one programmed car key. If you want to save some money, it's a great idea to purchase a spare key fob that is functional and have it programmed. This way, you will be certain that the new key is programmed to your vehicle and that it works. If not, you'll have to pay the dealership for replacement keys and programming services. Key Programmers Modern cars require a key-programming process to start the vehicle's system and then start the vehicle. In certain instances, the key will need to be programmed by an auto locksmith or dealer. The key may not work properly or it may not even start the car in any way. The reason is because the new key hasn't been programmed to the automobile's system – and this can be quite costly. This is why it's a good idea to always have two keys working for a modern car and to 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 have diagnostic software that allows them to communicate with computers, and they also have a bidirectional interface for working with the immobilizer system. There are programming car key of keyprogrammers on the market. They are available in a variety of sizes, shapes and colors. Some are cheap and others are advanced and can cost thousands of dollars. Some are made for specific automobiles and offer advanced diagnostics of the car's electronic system. Consult your owner's guide to learn how to program the key to your vehicle. Certain manufacturers employ proprietary technology that makes sure that the dealership is the only entity that can make new keys, but other manufacturers make it easy for anyone to do it themselves. If you're unable to program the new key on your own, 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're less expensive than going to a dealership, but still not inexpensive. Be sure to look up the seller before buying one. Some aren't reliable and can damage your vehicle. Transponder Chips If your car was manufactured in the past 20 years, then it contains a transponder chip within of it. It's the tiny plastic piece inside the head of the car key that has an RFID (Radio Frequency ID) chip with a code unique to the vehicle you own. The chip emits an unintentional radio signal when it is activated by an electromagnetic field. The signal is then taken up by an antenna that is attached to the ignition barrel. This allows the computer in your vehicle system to verify that the transponder chip that is in the key is the right one for the car you have. This prevents the vehicle from starting by hot-wiring, or by tampering. The chip inside the car key confirms that the owner is the one who is the owner of the vehicle. This can reduce car theft. Transponder keys look like regular metal keys but have caps made of plastic. The chip is contained in the plastic portion of the key, and there are a few different kinds of cuts available on the keys: a cut laser cut (also known as a sidewinder key) or Ford Tibbe key. A circuit within the induction coil emits signals when the transponder is inserted into ignition barrel. The signal will be received by the chip and cause it to send a signal back to the car. If the onboard car computer detects this signal as the correct one, it will turn off the immobilizer on the vehicle and allow the engine to start. If the vehicle doesn't recognize the transponder signal as being the proper one, it will stop the engine from running and will notify you by flashing its lights and sounding an alarm. This function is designed to discourage people from tampering with the vehicle. However it isn't an unbreakable security measure. A skilled and determined thief could still be able to get around this system using a special device to take over the signal. As you can see there are quite few advantages to getting a transponder key. This is something that all car owners should think about if they are looking to safeguard their investment and reduce the risk of theft. Key Fobs In addition to locking and unlocking doors, starting the car remotely or making noises to aid in finding a car in a parking lot Key fobs today can also turn on a heated steering wheel, or open all windows with just a single push. A lot of these additional features may appear convenient but they could make it difficult for you to keep the keys to your car. Key fobs make use of radio frequencies to connect with one another and the car. The frequencies are transmitted through a small antenna located within the middle of the key. The transmission is encrypted, which helps to stop others from stealing and replicating the signal. You can program a keyfob in a variety of ways depending on the model and brand of your vehicle. You can sometimes do this yourself, but the majority of newer cars require that you visit 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 signals to the receiver inside the vehicle that it is paired. The receiver compared this information to the 'allowed' signals stored on 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 able to operate. When a car is connected with a specific fob, it will only receive signals from the device that is associated with it. Other fobs won't work with the car, even though they look identical. This ensures the security of the computer system that runs the vehicle and stops unauthorised key fobs from taking control of it. 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 because the process of creating a replacement fob requires technological and security skills which can only be obtained in the dealer's service department. However, some fobs from the aftermarket typically for older models that have less sophisticated systems can be programmed by the consumer without the need of a dealership.