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How to Program Keys For Cars Automotive specialists or locksmiths are usually the ones who reprogram car keys. They can take your existing key and use a specific tool to program a brand new one for your car. The process involves reprogramming the chip in your replacement key to suit the current settings of your vehicle. Certain manufacturers make this process simple, while others require a dealer or locksmith. Self-Programming As car technology has evolved over the years, the ignition keys have also evolved as well. There are no more simple mechanical-only keys that were made at an hardware store for less than $10. The newer models have computers with improved anti-theft protection. To function correctly, these vehicles require that a transponder chip key be programmed to the vehicle by a professional locksmith or mechanic/car dealer. Professional locksmiths can perform various kinds of programming for keys for cars. Some are extremely complicated and may require advanced tools. These tools aren't generally available to the public and are only used by professionals. This type of car key programming is referred to as EEPROM Programming and requires soldering, electronic knowledge and a lot of time. Other types of key programming can be carried out by anyone. These are usually done by using the onboard diagnostics port, that can be accessed using an instrument for programming keys. A locksmith can perform this method with the assistance of an online guide and the owner's manual. Professional locksmiths can program a new or replacement car key fob in a short time. This is the ideal option for car owners since they can offer a full range of services. They can also offer a competitive price and ensure that the new key will function properly. It is important to note that a lot of vehicles only accept a single key for their system. If you want to save some money, it's a great idea to purchase an additional key fob that works and have it programmed. This way, you can be sure that the new key has been programmed to your vehicle and that it works. If not, you'll have to pay the dealership for replacement keys and programming services. Key Programmers Modern automobiles require a key-programming method to set up their systems and then start the vehicle. In a number of cases, the key must be set up by the dealer or an auto locksmith. The key might not function properly or it may not even start the car at all. This is because the key hasn't yet been programmed into the car's system. This can be expensive. This is why it's a great idea to have two working keys for a modern automobile and to have the replacement key programmed when required. A keyprogrammer is a device that recodes the transponder chip into an entirely new mechanical or key fob key. It is also able to clone information 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 come with diagnostic software, which allows them to communicate with computers. They also have a bidirectional user interface for working with an immobilizer system. There are many different kinds of keyprogrammers on the market and they come in all shapes and sizes. Some keyprogrammers are cheap and others may cost thousands of dollars. Some are designed for specific types of cars and provide advanced diagnostics for your vehicle's electronic systems. Refer to the owner's manual of your vehicle to learn how to program the key to your vehicle. Some manufacturers use proprietary technology that ensures the dealership is the only entity that can create new keys, but other manufacturers make it easy for anyone to accomplish it on their own. If you're unable to program a new key on your own or request the dealer to program it for you, however it will cost a lot. Another option is to purchase a keyprogrammer online. They're less expensive than visiting a dealership however they're expensive. Before purchasing one, do some research on the seller. Some are not reliable and could cause damage to your vehicle. Transponder Chips If your car was built within the last 20 years, chances are it has a transponder inside of it. This is the little plastic piece in the head of the car key that has an RFID (Radio Frequency ID) chip with a unique code for your vehicle. When activated by an electro-magnetic field the chip emits a low-frequency signal. key programing is received by a specific antenna that is attached to the barrel of ignition. This allows the car's computer system to determine if the transponder chip that is in the key is the correct one for the car you have. This prevents the vehicle from being started through hot-wiring, or by manipulating. The chip in the key also confirms that you are the genuine owner of the vehicle. This helps to reduce the risk of theft from your car. Transponder keys look like regular keys made of metal but have a plastic cap. The chip is contained within the plastic portion of the keys. There are a variety of cuts such as a standard cut Laser cut (also called a sidewinder or Ford Tibbe) and Ford Tibbe. A circuit inside the induction coil emits signals when the transponder is placed in the ignition barrel. The signal will be absorbed by the chip, causing it to transmit a signal back to the car. If the computer in the car detects the signal as valid it will turn off the car immobilizer so that the engine can start. If the car does not recognize the transponder signal as being the right one, it will prevent the engine from starting and will notify you by flashing its lights and sounding an alarm. This system is designed to deter those who would attempt to alter the vehicle. However it's not a foolproof measure of security. A skilled and skilled criminal could still bypass this system by using a specific device that detects the signal. As you can see there are quite a few advantages to getting transponder keys. Every car owner should consider this if they wish to protect their investment and decrease the chance of theft. Key Fobs Key fobs today can offer more than locking and unlock doors. They can also start the car remotely, emit chirping sounds to help locate the car, or turn on the heated steering wheel. These extra features could make it difficult to locate your car keys. Key fobs communicate with one with the car via radio frequencies that are transmitted via an antenna that is located in the middle of the key. The transmission is encrypted, which helps to prevent others from intercepting and replicating the signal. There are several ways to program a key fob based on the model and make. You may be able to do it yourself, but the majority of newer vehicles require a locksmith shop or a professional to program a replacement or an additional fob. When you hit the button on a key fob it transmits an encoded code to the car's receiver that it is paired with. The receiver compares this information with the 'allowed' signals inside the fob, and either locks or opens the door. If the information isn't in line, a chirping sound is heard and the car isn't permitted to operate. Once the car has been paired with a specific fob, it will only accept signals from that device. Other fobs won't work with the car, despite the fact that they look like. This protects the integrity of the computer system in the car and prevents unauthorised key fobs from taking control over it. Most newer car dealers will only work on a car with original fobs or genuine replacements that are supplied by the manufacturer. This is because the process of creating the replacement fob is a process that requires technological and security expertise that is only available in the dealer service department. Some aftermarket fobs, usually ones for older models that have less sophisticated systems, can be programmed without the need for a dealer.