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How to Program Keys For Cars Typically, car key reprogramming is the responsibility of a locksmith specialist. They can take your old working key and use a specific tool to program a new key for your car. This involves changing the chip inside your replacement key so that it matches the current settings of your vehicle. Certain manufacturers make it simple, while other require an expert locksmith or dealer. Self Programming The ignition keys have changed in tandem with the advancements in car technology. The days of the basic mechanical keys you could purchase from a hardware shop for less than $10 have gone. The latest models are equipped with computers that have improved anti-theft security. In order to work properly, these cars require that a transponder chip key be programmed into the vehicle by a professional locksmith or mechanic/car dealer. There are a few different kinds of car key programming that can be performed by professional locksmiths. Some are very complex and may require sophisticated tools. These tools aren't generally available to the public and are only used by professionals. This type of key programming is called EEPROM Programming. It requires the ability to solder, electronic skills and a lot of time. Other types of car key programming are much easier and can be done by the average person. They are typically accomplished by using the onboard diagnostics port, which can be accessed with an instrument for programming keys. This method can be performed by a professional locksmith using an online guide or the car's owner's manual. Professional locksmiths can program a replacement or new car key fob quickly. This is the best choice for car owners since they are able to provide a full range of services. They can provide a competitive cost and peace of mind knowing that the replacement key is going to work. Keep in mind that the majority of automobiles only accept one programmed car key. If you're looking to save some money, it's a great idea to get an additional key fob that functions and have it programmed. You can be certain that the new key will work and is compatible with your car. You will have to pay the dealer for programming and replacement keys if you don't. Key Programmers Modern vehicles require a key-programming process to start the vehicle's system and then start the vehicle. In many cases the key needs to be programmed by the dealer or an auto locksmith. This is because the key may not work properly, or it will not start the vehicle in any way. This is because the key has not yet been programmed into the car's system. This could be costly. It's best to have two keys that work for the modern automobile so that you can program the replacement key whenever required. A keyprogrammer is a device that recodes the transponder chip in a new mechanical or key fob key. It is also able to clone data from an existing key which allows duplicate keys to be made. These are handheld devices connected to a car's On Board Diagnostics (OBD port). They have diagnostic software that enables them to communicate with computers as well as an interface that works bidirectionally with the 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 inexpensive, while others can cost thousands of dollar. Certain models are specifically designed for automobiles and provide advanced diagnostics of the vehicle's electronic system. If you want to program the new key into your vehicle, check the owner's manual for instructions on how. Some manufacturers use proprietary software that allows only dealers to create new keys. Other manufacturers make it simple for anyone to do. If you are unable to program the new key by yourself or by yourself, you can request your dealer to do it, however it will be very costly. Another option is to buy a keyprogrammer online. These are cheaper than visiting a dealership, but they're still expensive. Before you purchase one, do some research on the seller. Some are not reliable and may damage your vehicle. Transponder Chips Transponder chips are likely to be found in cars that were manufactured within the past 20 years. It's a small plastic thing on the back of your key that contains an RFID (Radio Frequency Identification) chip with a unique code that is specific to your particular vehicle. When it is activated by an electro-magnetic field, the chip emits a low level signal. The signal is then absorbed by a special antenna attached to the ignition barrel. The computer system of the vehicle can then verify that the chip in the key's transponder is the right one for your car. This is what prevents doing hot-wiring or altering the vehicle's ignition system to turn it on. The chip in the key also confirms that you are the legal owner of the vehicle. This helps to prevent the possibility of theft from your vehicle. Transponder keys that are regular in shape like regular keys, but with an outer layer of plastic. The chip is contained within the plastic portion of these keys. There are several different cuts such as a standard cut a Laser cut (also known as a sidewinder or Ford Tibbe), and a Ford Tibbe. A circuit inside the induction coil will emit signals when the transponder is placed in the an ignition barrel. The signal is received by the chip which then transmits a signal to the vehicle. If the computer on the car recognizes this signal as being the correct one, it will disable the immobilizer on the vehicle and allow the engine to start. If the vehicle doesn't recognize the transponder as the correct signal, it will not start the engine and will warn you with flashing lights and an alarm. This feature is designed to discourage people from attempting to hack into the vehicle, but it isn't a foolproof security measure. A skilled and determined criminal could still be able to escape this security system by using a special device to take over the signal. You can see that a transponder is a great option. Every car owner should take this into consideration if they wish to protect their investment and minimize the risk of theft. Key Fobs Key fobs today offer more than locking and unlock doors. They can also start your car from a distance, make chirping sounds to aid in finding the car, or turn on the heated steering wheel. A lot of these features may seem convenient but they could make it more difficult to keep the track of your car keys. Key fobs communicate with one other and the car using radio frequencies that are transmitted by a small antenna located in the center of the key. The signal is encrypted to block other key fobs from stealing or modifying the signal. There are many ways to program a key fob based on the model and make. Some cars allow you to do this yourself. However, the majority of newer models require you to visit an expert locksmith or dealer to program a new key fob or additional one. When you hit the button on a key fob, the microchip inside transmits a code to the car's receiver it is linked to. The receiver then compares the data with the 'allowed signals' stored in the key fob and then opens or locks the car's doors. If the information doesn't match an chirping sound is heard and the car isn't able to operate. Once the car is paired with a specific fob it will only receive signals from the device that is associated with it. This means that other fobs won't be able to work with the vehicle even if they have the same appearance. This protects the integrity of the computer system that runs the car and prevents the use of unauthorized key fobs to gain control over it. Most dealerships with newer cars will only deal with vehicles that have original fobs or genuine replacements sold by the manufacturer. This is because preparing a replacement fob requires technological and security expertise that can only be found in the dealer service department. Some aftermarket fobs, usually ones for older models with less sophisticated systems can be programmed with out the need for a dealership.