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How to Program Keys For Cars Locksmiths or automotive specialists are usually the ones who reprogram keys to cars. They can make use of a specific software to program the new key using your old one. programming car key involves reprogramming your blank chip inside the replacement key to fit the current settings of your vehicle. Certain manufacturers make this simple but others require a locksmith or dealer. Self Programming As technology for cars has improved over time, the ignition keys have also evolved too. Gone are the days of simple mechanical-only keys that were made at the hardware store for less than $10. Modern models come with computers that are enhanced anti-theft protection. 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. Certain types are extremely complex and require sophisticated tools. These tools are generally not accessible to the general public and are only used by professionals. This kind of key programming is called EEPROM Programming. It requires soldering skills, electronic knowledge and a lot time. Other forms of car key programming are much simpler and can be done by anyone who is able to. These are done using the onboard diagnosis port, which is accessible with a special tool for key-fob programming. Locksmiths can carry out this procedure with the help of an online guide and the owner's manual. Professional locksmiths can program a replacement or new car key fob in a short time. This is the ideal option for owners of vehicles as they can offer a full range of services. They can provide a reasonable price and security of knowing that the replacement key will continue to work. It is important to keep in mind that a majority of vehicles can only accept one programmed key for their system. If you're looking to save some money, it's a great idea to get an additional key fob that works and have it programmed. This way, you will be certain that the new key has been programmed to your vehicle and that it will work. You will have to pay the dealer for programming and replacement keys if you don't. Key Programmers Modern vehicles frequently require a key programming process to initialize the vehicle's system and allow the car to start. In some cases, the key will need to be programmed by an auto locksmith or dealer. The key may not work properly or not start the car in any way. The reason for this is that the new key has not been programmed to the car's system – and this can be very costly. It's best to have two keys that work with your current car so you can program the replacement key if required. A keyprogrammer can reprogram the transponder chip on an entirely new mechanical key or key fob. It is also able to copy data from an existing key in order to create duplicates. These are handheld devices that connect to the car's On Board Diagnostics (OBD port). They come with diagnostic software that allows them to communicate with a computer. They also have a bidirectional user interface that works with an immobilizer system. There are many different kinds of keyprogrammers on the market and they are available in all sizes and shapes. Some keyprogrammers are cheap and others could cost thousands of dollars. Some are designed for specific types of cars, and they can even offer advanced diagnostics for the electronic systems of the car. Consult your owner's guide to learn how to program keys for your vehicle. Some manufacturers use proprietary technology that guarantees that the dealership is the only entity that can create new keys, but other manufacturers make it easy for anyone to do it on their own. If you're unable to program a new key yourself or request the dealer to program it for you, however it will cost a lot. You can also purchase an online keyprogrammer. They are less expensive than going to a dealership but they aren't inexpensive. Before you purchase one, do some research on the seller. Some aren't reliable and could damage your vehicle. Transponder Chips Transponder chips can be found in vehicles manufactured within the past 20 years. It's a small plastic piece in the head of your key that contains a RFID (Radio Frequency Identification) chip with a unique code that is specific to your particular vehicle. When it is activated by an electromagnetic field the chip emits a low level signal. The signal is then absorbed by the special antenna that is fitted around the ignition barrel of your car. This allows the car's computer system to determine if the transponder chip inside the key is the correct one for your particular car. This stops the vehicle from being started by hot-wiring, or by manipulating. The chip in the key also verifies that you are the legitimate owner of the vehicle. This helps to prevent car theft. Transponder keys that are regular in shape like regular keys, but with an outer layer of plastic. The chip is contained within the plastic part of the key and there are different cuts that can be found on these keys: a standard cut, a laser cut (also called a sidewinder key) or Ford Tibbe key. A circuit within the induction coil will emit an electrical signal when the transponder is placed in the the ignition barrel. The signal will be taken up by the chip, causing it to transmit a signal back to the car. If the computer in the car recognizes the signal as valid, it will disable vehicle immobilizer so that the engine can start. If the car doesn't recognize the transponder as being the proper signal, it won't start the engine and will warn you with flashing lights and an alarm. This function is designed to discourage people from tampering with the vehicle. However, it is not an absolute security measure. A skilled and skilled criminal can still get around this system with a specially designed device that blocks the signal. As you can see there are quite number of advantages to having transponder keys. Every car owner should consider this if they wish to protect their investment and minimize the chance of theft. Key Fobs In addition to locking and unlocking doors, starting the car remotely, or making sound chirps to help locate a car in a parking space, today's key fobs can also activate the heated steering wheel or roll down all of the windows with a single button push. A lot of these additional features may seem convenient but they could make it harder for you to keep track of your car keys. Key fobs communicate with one other and the car using radio frequencies that are transmitted via an antenna in the center of the key. This signal is encrypted to block other key fobs from stealing or stealing the signal. You can program a keyfob in different ways based on the model and brand of your vehicle. Certain models allow you to do this by yourself. However, the majority of modern models require you to visit a professional locksmith or dealer for them program a replacement key fob or an additional one. When you press the button on a key fob, the microchip sends signals to the receiver inside the car with which it is linked. The receiver compared this information with the 'allowed' signals inside the fob, and either locks or opens the door. If the data does not match, the car will not be allowed to operate. After the car has been connected to a specific fob, it will only accept signals from the device. Other fobs will not work with the car, even though they look identical. This ensures the security of the computer system of the vehicle and stops unauthorized key fobs gaining control of it. Most dealerships with newer cars will only accept vehicles that have original fobs, or genuine replacements offered by the manufacturer. It is because the only place with the experience to design an appropriate replacement fob is a dealer's service department. However, some aftermarket fobs — usually those for older models that have less sophisticated systems can be programmed by consumers without the need for an authorized dealer.