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How to Program Keys For Cars Reprogramming the car key typically is the job of a locksmith or automotive specialist. They will use a special software to program the new key with your old one. The process involves reprogramming the blank chip inside the replacement key to match the current settings of your vehicle. Certain manufacturers make this process simple however others require a dealer or locksmith. Self-Programming The ignition keys have evolved in tandem with the advancements in car technology. Gone are the days of simple mechanical keys that were made at the hardware store for less than $10. Newer models are equipped with computers that are enhanced security against theft. 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 types of car keys programming that can be done by locksmiths who are professionals. Some are complex and require advanced tools. These tools aren't usually accessible to the general public and are used only by professionals. This type of car key programming is referred to as EEPROM Programming and requires soldering, electronic expertise and a significant amount of time. Other forms of programming car keys are much simpler and can be performed by the average person. These are done with the onboard diagnostic port, which is accessible 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 manual. Professional locksmiths can program a replacement or a brand new car key fob swiftly. This is the most efficient option for car owners as they are able to provide a full range of services. They also provide an affordable price and peace of mind that the new key will work properly. It's important to remember that a lot of vehicles only accept one key that has been programmed for their system. Therefore, if you want to save money, it might be a better idea to buy a spare key fob and then have it programmed by an auto locksmith. This way, you will be sure that the new key has been programmed for your vehicle and that it will work. You'll have to pay the dealer for programming and replacement keys if you don't. Key Programmers Modern vehicles typically require a key programming procedure to start the system of the vehicle and allow the car to begin. In many cases, the key must be configured by the auto locksmith or dealer. This is because the key might not work properly or start the car at all. The reason is because the new key hasn't been programmed to the car's system – and this can be quite costly. This is why it's a good idea to always have two working keys for a modern automobile and have the replacement key programmed when required. A keyprogrammer is a tool which can reprogram the transponder chip on an entirely new key fob or mechanical key. It can also clone the data from an existing key and allow duplicate keys to be created. These are handheld devices that connect to the car's On Board Diagnostics (OBD port). They are equipped with diagnostic software, which allows them to communicate with a computer. They also feature 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. Certain keyprogrammers are affordable, while others may cost thousands of dollars. Certain models are specifically designed for automobiles and offer advanced diagnostics of the vehicle's electronic system. If you want to program a new key to your vehicle, consult the owner's manual for instructions on the procedure. Some manufacturers use proprietary software that allows only the dealership to create new keys. Other manufacturers make it easy for anyone to do. If you are unable to program a new key by yourself or ask the dealership to program it for you, but this can be expensive. You can also buy a keyprogrammer from the internet. They are cheaper than visiting a dealer, but still not cheap. Make sure you research the seller before purchasing one – some are not reliable and could damage your car. Transponder Chips Transponder chips can be found in vehicles manufactured within the last 20 years. It's the small plastic piece in the head of the car key that has an RFID (Radio Frequency ID) chip that has a unique code to the vehicle you own. When it is activated by an electro-magnetic field, the chip emits a low-level signal. The signal is received by a specific antenna attached to the barrel of ignition. The computer system of the vehicle can then verify that the key's transponder chip is the correct one for your car. This is the reason why hot-wiring or tampering with the ignition system of the vehicle to get it started. The chip in the key also verifies that you are the legitimate owner of the vehicle. This will help reduce car theft. Transponder keys appear like regular metal keys but they have a plastic cap. The chip is contained in the plastic portion of the key and there are a few different kinds of cuts available on these keys: a cut laser cut (also known as a sidewinder key) or Ford Tibbe key. A circuit within the induction coil emits a signal when the transponder is put into ignition barrel. The signal will then get received by the chip, causing it to send a signal back to the car. If the computer on the car recognizes this signal as being the right one, it will turn off the vehicle's immobilizer and allow the engine to start. If the vehicle doesn't recognize the transponder as a valid signal, it will not start the engine and will notify you via flashing lights and a siren. This feature is designed to deter people from trying to tamper with the vehicle, but it isn't a foolproof 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 you can see there are quite a few advantages to getting transponder keys. All car owners must take this into consideration when they want to safeguard their investment and reduce theft risk. Key Fobs Key fobs today can be more than just a way to lock and unlock doors. They can also start your car from a distance, make chirping sounds to help locate the car, or switch on the heated steering wheel. These extra features can make it difficult for you to find your car keys. Key fobs communicate with one other and the car using radio frequencies that are transmitted by an antenna in the middle of the key. This communication is encrypted to stop others from stealing or stealing the signal. You can program a keyfob in various ways based on the make and model of your vehicle. You can sometimes do this yourself, but most newer cars require that you visit a dealer or professional locksmith to program a replacement or an additional fob. When you press the button on a key fob the microchip transmits a signal to the receiver inside the car with which it is paired. The receiver then compares the data with the 'allowed signals' that are stored in the key fob and then it opens or closes the car's door. If the information doesn't match, a chirping sound is heard and the car isn't able to operate. Once the car is linked with a specific fob, it will only receive signals from that device. As a result, other fobs will not work with the vehicle, even though they look the same. This safeguards the integrity of the computer system in the car and blocks unauthorized key fobs gaining control of it. Most dealerships with newer cars will only work with cars with original fobs or genuine replacements sold by the manufacturer. reprogram car key is because preparing the replacement fob is a process that requires technological and security knowledge that is only available in the dealer's service department. However, some aftermarket fobs that are typically designed for older models that have less sophisticated systems — can be programmed by customers without the need for an authorized dealer.