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How to Program Keys For Cars Locksmiths or automotive specialists are typically the ones who reprogram car keys. They will 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 fit the current settings of your vehicle. Some manufacturers make it simple to do, while others require a locksmith or dealer. Self-Programming As car technology has evolved over the years, the ignition keys have also evolved as well. Gone are the days of simple mechanical keys that were made at a hardware store for under $10. Modern models come with computers that have improved anti-theft protection. These cars require a transponder-chip-integrated key to be programmed by a professional locksmith mechanic or dealer for proper operation. There are several types of car keys programming that can be accomplished by professional locksmiths. Some are complex and require sophisticated tools. These tools are usually not accessible to the general public and are used only by professionals. This type of programming for car keys is referred to as EEPROM Programming and requires soldering, electronic skills and a lot of time. Other types of key programming can be carried out by anyone. These are usually done by using the diagnostics port on the car, which is accessible with a special key-fob-programming tool. This method can be performed by a trained locksmith with the help of an online guide or an owner's manual. Professional locksmiths can program a new or replacement car key fob quickly. This is the best choice for car owners since they can offer a full range of services. They can offer a competitive cost and assurance that the replacement key will continue to work. Be aware that most vehicles can only accept a single programmed car key. If you're looking to save some money, it's a good idea to get an extra key fob that is functional and have it programmed. You can be assured that the new key will work and is programmed for your car. You will have to pay the dealer for programming and replacement keys if you do not. Key Programmers Modern cars often require a key programming process to start the system of the vehicle and allow the car to begin. In many cases keys must be programmed by the dealer or auto locksmith. The key may not work properly or it may not even start the vehicle in any way. This is because the key hasn't yet been programmed into the car's system. This can be expensive. It's best to have two keys that work for the modern automobile so that you can program the replacement key whenever needed. A keyprogrammer is a device which can reprogram the transponder chip in the form of a new key fob or mechanical key. It is also able to copy the data from an existing key and allow duplicate keys to be made. These devices are handheld units that connect to the 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 many different types of keyprogrammers that are available on the market. They come in all sizes, shapes and colors. Certain keyprogrammers are affordable and others could cost thousands of dollars. Certain models are specifically designed for certain kinds of vehicles and can offer advanced diagnostics for the electronic systems of the car. Refer to the owner's manual of your vehicle to learn how to program keys for your vehicle. Certain manufacturers have proprietary software that allows only dealers to make new keys. Other manufacturers make it simple for anyone to do. If you're unable to program a new key yourself You can ask the dealership to program it for you, but it will cost a lot. Another option is to buy an online keyprogrammer. They are cheaper than visiting a dealership, but still not inexpensive. Be sure to look up the seller before buying one. Some aren't reliable and can damage your car. Transponder Chips Transponder chips can be found in cars that were manufactured within the last 20 years. It's the tiny plastic piece in the head of your car key that contains an RFID (Radio Frequency ID) chip that has a unique code to your car. When it is activated by an electro-magnetic field the chip emits a low level signal. This signal then gets absorbed by the special antenna that is fitted around the barrel that controls your ignition in your vehicle. This allows the car's computer system to verify that the transponder chip in the key is the right one for the car you have. This is what prevents hot-wiring or tampering with the ignition system of your vehicle to start it. The chip in the car key ensures that the owner is the one who owns the vehicle. This helps to reduce the risk of theft from your car. Transponder keys appear like regular keys made of metal but have caps made of plastic. The chip itself is housed in the plastic portion of the key and there are different kinds of cuts available on these keys: a regular cut, a laser cut (also called a sidewinder) or Ford Tibbe key. When the transponder key is inserted into the ignition barrel, a circuit inside of the induction coil will send out an electrical signal. The signal will then get absorbed by the chip, causing it to transmit a signal to the car. If the onboard car computer recognizes this signal as the right one, it will disable the vehicle's immobilizer and allow the engine to start. If the car isn't able to recognize the transponder as a valid signal, it will not start the engine and warn you with flashing lights and a siren. This feature is intended to discourage people from attempting to tamper with the vehicle, however it's not a 100% security measure. A skilled and committed thief could still be able to escape this security system by using a special device to intercept the signal. As you can see there are quite a few advantages to getting a transponder key. Every car owner should consider this in order to safeguard their investment and minimize the chance of theft. Key Fobs In addition to locking and unlocking doors, starting the car from a distance or making sound chirps to help locate a car in a parking lot Key fobs today can also turn on a heated steering wheel, or roll down all windows with a single button click. A lot of these additional features may seem convenient, but they can also make it more difficult to keep track of your car keys. Key fobs are able to communicate with each with the car via radio frequencies which are transmitted through a small antenna located in the center of the key. This communication is encrypted to prevent others from intercepting or replicating the signal. There are many ways to program a key fob depending on your vehicle's model and make. Certain cars let you do it yourself. However, the majority of newer models require you to visit a professional locksmith or dealer for them program a replacement key fob, or an alternative one. When you press the button on a key fob the microchip transmits a signal to the receiver in the vehicle that it is paired. The receiver then compares the data with the 'allowed signals' that are stored in the key fob and then locks or opens the car door. If the information doesn't match, the car will not be allowed to drive. Once programming car key has been connected to a specific fob, it only accepts signals from the device. This means that other fobs will not work with the vehicle, even though they look the same. This helps to protect the integrity of the car's computer system, and also to stop the use of unauthorized key fobs to gain control of the vehicle. Most newer car dealers will only work on a car with original fobs or genuine replacements offered by the manufacturer. This is because the process of creating an appropriate replacement fob requires technical and security knowledge that can only be found in the dealer service department. However, some aftermarket fobs — usually those for older models that have less sophisticated systems — can be programmed by the consumer without the need for an authorized dealer.