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How to Program Keys For Cars Locksmiths or automotive specialists are typically the ones who reprogram car keys. They can use a special software to program your new key with your old one. The procedure involves reprogramming the chip in your replacement key to match the current settings of your vehicle. Certain manufacturers make it simple to do, while others require an expert locksmith or dealer. Self Programming The ignition keys have evolved along with the car technology. The days of simple mechanical keys that you could purchase from a hardware store for less than $10 are 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, car dealer or mechanic to function properly. Professional locksmiths can carry out various types of programming for car keys. Certain types are extremely complex and require sophisticated tools. These tools are usually not accessible to the general public and are used only by professionals. This kind of programming is referred to as EEPROM Programming. It requires soldering skills, electronic knowledge and a lot of time. Other forms of car key programming are much simpler and can be performed by the average person. These are usually done by using the onboard diagnostics port which is accessible with an instrument for programming keys . This procedure can be carried out by a trained locksmith with the help of an online guide or the car's owner's manual. Locksmiths with experience can program a new or replacement car key fob quickly and accurately. This is the best choice for car owners as they can offer a wide range of services. They can provide a competitive cost and security of knowing that the replacement key will continue to work. Be aware that most vehicles can only accept a single programmed car key. If you're trying to save money, it could be better to buy a spare key fob and have it programmed by an auto locksmith. You can be assured that the new key will function and is compatible with your car. If not, you'll have to pay the dealership for replacement keys and programming services. Key Programmers Modern cars often require a key programming process to set up the car's system and allow the vehicle to begin. In some cases the key will have to be programmed by an auto locksmith or dealer. This is because the key might not function properly or start the vehicle in any way. This is because the key has not yet been programmed into the vehicle's system. This can be expensive. This is why it's a great idea to have two working keys for a modern car and have the replacement key programmed if needed. Keyprogrammers can recode the transponder chip on an entirely new mechanical key or key fob. It can also clone the data of 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 are equipped with diagnostic software, which allows them to communicate with computers. They also have a bidirectional user interface to work with an immobilizer system. There are a myriad of types of keyprogrammers that are available on the market. They are available in a variety of sizes, shapes, and colors. Some are cheap, while others are very sophisticated and could cost thousands of dollars. Certain models are specifically designed for certain types of vehicles and provide advanced diagnostics for your electronic systems of the car. Check out the owner's manual to learn how to program the key to your vehicle. Certain manufacturers have proprietary technology that guarantees that the dealership is the only entity able to create new keys, however other manufacturers make it fairly simple for anyone to do it on their own. If you are unable to program a new key on your own, you can ask the dealership to do it for you, but this can be expensive. Another option is to purchase a keyprogrammer online. They're less expensive than visiting a dealership however, they aren't cheap. Make sure you investigate the seller prior to purchasing one. Some aren't reliable and could harm your vehicle. Transponder Chips If your car was built within the last 20 years, chances are it has a transponder chip inside of it. This is a little piece of plastic in the head of your key which contains a RFID (Radio Frequency Identification) chip with an individual code for your specific vehicle. When it is activated by an electro-magnetic field, the chip emits a low-level signal. This signal is then taken up by an antenna that is attached to the ignition barrel. The computer system of the vehicle can then verify that the chip in the key's transponder is the correct one for your vehicle. This stops the vehicle from being started by either hot-wiring or by altering the key. The chip inside the car key ensures that the owner is the one who owns the vehicle. This helps to prevent car theft. Regular transponder keys are designed like regular metal keys with an outer layer of plastic. The chip is inside the plastic part of these keys. There are several different cuts such as a standard cut a Laser cut (also called a sidewinder or Ford Tibbe), and Ford Tibbe. A circuit within the induction coil will emit a signal when the transponder is placed in the the ignition barrel. The signal is received by the chip which sends a signal to the vehicle. If the computer in the car is able to recognize the signal as being correct, it will disable vehicle immobilizer so that the engine can start. If the vehicle doesn't recognize the transponder signal as the right one, it will keep the engine from running and will notify you by flashing its lights and sounding an alarm. This feature is designed to discourage people from trying to tamper with the vehicle, however it isn't a foolproof security measure. A determined and skilled thief can still get around this system with a specially designed device that detects the signal. As you can see there are quite a few advantages to getting transponder keys. All car owners should consider this if they wish to protect their investment and minimize theft risk. Key Fobs Key fobs today can do more than just lock and unlock doors. They can also turn on the vehicle from a distance, make chirping sounds to aid in finding cars or switch on the heated steering wheel. These additional features can make it difficult for you to find your car keys. Key fobs use radio frequencies to communicate with one another and with the car. These frequencies are transmitted via a small antenna that is located within the middle of the key. This communication is encrypted, which helps prevent others from intercepting and retransmitting the signal. You can program a keyfob in various ways based on the model and make of your car. Some cars allow you to do it yourself. However, the majority of modern models require you to visit a professional locksmith or dealer in order for them program a replacement key fob or additional one. When you press the button on your key fob the microchip inside sends an encoded code to the car's radio that it is linked to. The receiver then compares this information to the signals that are allowed in the fob and then either opens or closes the door. If the data does not match the fob's information, the car won't be allowed to operate. After the car has been paired with a specific fob, it can only receive signals from that device. As a result, other fobs won't work with the vehicle even though they appear similar. This ensures the security of the computer system that runs the vehicle and stops the use of unauthorized key fobs to gain control of it. Most dealerships with newer cars will only deal with vehicles that have original fobs or genuine replacements offered by the manufacturer. This is because the process of creating an appropriate replacement fob requires technical and security expertise that is only available in the dealer's service department. However, some fobs from the aftermarket that are typically designed for older models that have less sophisticated systems can be programmed by consumers without the need for dealers.