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How to Program Keys For Cars Automotive specialists or locksmiths are typically the ones who re-program keys to cars. They can take your old working key and then use a special tool to program a brand new one for your car. This involves reprogramming a blank chip in your replacement key to ensure that it matches the current settings of your vehicle. Certain manufacturers make this simple, while others require a dealer or locksmith. Self-programming The ignition keys have developed along with the car technology. The days of the simple mechanical keys you could buy from a hardware shop for less than $10 are long gone. Newer models are equipped with computers that offer improved security against theft. In order to work properly, these cars require that a transponder chip key be programmed to the vehicle by a certified locksmith or mechanic/car dealer. There are many types of car key programming that can be accomplished by professional locksmiths. Some are very complex and require sophisticated tools. These tools aren't generally accessible to the general public and are only used by professionals. This type of car key programming is referred to as EEPROM Programming and requires soldering, electronic expertise, and a lot of time. Other types of programming car keys are much easier and can be performed by anyone who is able to. These are done with the onboard diagnostic port, which is accessible by a specific tool for key fob programming. This procedure can be carried out by a professional locksmith with the help of an online guide or the car's owner manual. Professional locksmiths can program a replacement or a brand new car key fob swiftly. This is the best choice for vehicle owners as they can provide a complete range of services. They also can provide an affordable cost and assurance that the new key will function properly. It is important to note that a majority of vehicles can only accept one key that has been programmed for their system. So, if you're looking to save money, it may be better to buy a spare key fob, and have it programmed by an auto locksmith. You can be certain that the new key works and is compatible with your vehicle. Otherwise, you will need to pay the dealership for replacement keys and programming services. Key Programmers Modern cars typically require a key programming procedure to start the system of the vehicle and allow the vehicle to start. In many cases, the key must be programmed by the dealer or auto locksmith. This is because the key might not work properly, or it will not start the car at all. This is because the key hasn't yet been programmed into the vehicle's system. This can be costly. It's best to have two keys that work for your modern car so you can program the replacement key if needed. A keyprogrammer can recode the transponder chip of the new mechanical key or key fob. It is also able to copy the information from an existing key, allowing duplicates to be made. These are handheld devices that connect to the car's On Board Diagnostics (OBD port). They are equipped with diagnostic software that allows them to communicate with computers. They also feature a bidirectional user interface that works with an immobilizer system. There are a variety of keyprogrammers available on the market. They come in all sizes, shapes and colors. Some are cheap while others are advanced and could cost thousands of dollars. Some are made for specific automobiles and offer advanced diagnostics of the car's electronic system. Refer to the owner's manual of your vehicle to learn how to program a key for your vehicle. Certain manufacturers have proprietary technology that makes sure that the dealership is the sole entity that can make new keys, but other manufacturers make it fairly easy for anyone to accomplish it themselves. If you are unable to program a new key yourself, you can ask the dealership to do it for you, however this can be expensive. You can also buy an online keyprogrammer. These are less expensive than going to the dealership however they're not cheap. Before buying one, do some research on the seller. Some aren't trustworthy and may damage your vehicle. Transponder Chips Transponder chips can be found in cars manufactured in the last 20 years. It's the tiny piece of plastic in the head of your car key that contains an RFID (Radio Frequency ID) chip with a code unique to the vehicle you own. When it is activated by an electro-magnetic field, the chip emits a low-frequency signal. The signal is then absorbed by the special antenna that is attached to the barrel that controls your ignition in your car. This allows the vehicle's computer system to verify that the transponder chip in the key is the correct one for the car you have. This stops the vehicle from being started by hot-wiring, or by tampering. The chip inside the key confirms that the owner is the one who owns the vehicle. This can help to reduce car theft. Transponder keys that are regular in shape like regular keys, but with an outer layer of plastic. The chip is contained in the plastic portion of the key, and there are different kinds of cuts available on these keys: a regular standard cut, a laser cut (also known as a sidewinder key) or Ford Tibbe key. When the transponder key is inserted in the ignition barrel, a circuit inside of the induction coil will send out an electrical signal. The signal will then get received 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 turn off the car immobilizer, allowing the engine to start. If the vehicle doesn't recognize the transponder signal as the proper one, it will keep the engine from starting and will notify you by flashing its lights and sounding a siren. This system is designed to deter those who would attempt to alter the vehicle. However, it is not a foolproof measure of security. A skilled and determined criminal may still be able to bypass this system by using a device that can take over the signal. As you can see there are quite number of advantages to having transponder keys. This is something that all car owners should consider if want to protect their investment and minimize the chance of theft. Key Fobs Key fobs today can offer more than locking and unlock doors. They can also start the vehicle remotely, emit chirping sounds to aid in finding the car or turn on the heated steering wheel. Many of these extra features might seem useful but they could make it difficult for you to keep the track of your car keys. Key fobs communicate with each with the car via radio frequencies which are transmitted via an antenna in the center of the key. This communication is encrypted, which helps to stop others from stealing and replicating the signal. There are many ways to program a key fob depending on the make and model. You may be able to do it yourself, however most modern automobiles require a locksmith shop or a professional to program a replacement or a second fob. When you press the button on your key fob, the microchip inside transmits an informational code to the car's receiver that it is paired with. The receiver compared this information with the 'allowed' signals stored inside the fob, and either opens or closes the door. If the information isn't in line an chirping sound is heard and the car isn't able to function. Once automotive key programming has been connected to a specific fob, it can only receive signals from the device. In turn, other fobs won't work with the vehicle even though they appear similar. This safeguards the integrity of the computer system in the car and blocks unauthorised key fobs from taking control over it. The majority of car dealers who are newer will only work on cars with original fobs or genuine replacements that are supplied by the manufacturer. This is because the only place with the experience to design an appropriate replacement fob is the service department of a dealer. Some aftermarket fobs, usually those from older models that have less sophisticated systems, can be programmed without the need for a dealership.