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How to Program Keys For Cars Reprogramming the car key typically is the job of a locksmith or automotive specialist. They can take your old working key and then use a special tool to program a new key for your vehicle. The process involves reprogramming the chip in your replacement key to fit the current settings of your vehicle. Certain manufacturers make this process simple but others require a locksmith or dealer. Self Programming As the technology of cars has advanced over time, the ignition keys have developed too. The days of the simple mechanical keys that you could make at the hardware shop for less than $10 are long gone. Newer models are equipped with computers that are enhanced security against theft. These cars require a transponder-chip-integrated key to be programmed by a professional locksmith car dealer or mechanic in order to function properly. There are many types of car keys programming that can be done by locksmiths who are professionals. Certain are complicated and require specialized tools. These tools are generally not available to the general public and are only used by professionals. This kind of programming is referred to as EEPROM Programming. It requires expertise in soldering, electronic knowledge and a significant amount of time. Other types of car key programming are much easier and can be done by anyone who is able to. They are typically done using the onboard diagnostics port which can be accessed with an instrument for programming keys. Locksmiths can execute this method with the help of an online guide and the owner's manual. Locksmiths with experience can program a new or replacement car key fob swiftly and accurately. This is the best choice for owners of vehicles as they can provide a complete range of services. They can also offer an affordable price and peace of mind that the replacement key will function properly. It is important to keep in mind that a majority of vehicles can only accept a single key for their system. If you're looking to save some money, it's a good idea to buy an extra key fob that functions and then have it programmed. This way, you will be sure that the new key has been programmed to your vehicle and that it will work. You'll have to pay the dealer for programming and replacement keys if they don't. Key Programmers Modern cars require a key-programming procedure to start the vehicle's system and to start the car. In certain instances the key will have to be programmed by an auto locksmith or a dealer. The key may not work correctly or will not start the vehicle at all. This is because the key hasn't yet been programmed into the car's system. This can be costly. It is best to have two keys that are compatible with your current car so you can program the replacement key whenever required. A keyprogrammer can recode a transponder chip on a new mechanical key or key fob. It is also able to copy the information from an existing key which allows duplicate keys to be created. These are handheld devices that connect to the car's On Board Diagnostics (OBD port). They come with diagnostic software, which allows them to communicate with a computer. They also have a bidirectional interface to work with an immobilizer system. There are many various kinds of keyprogrammers that are available and they come in all sizes and shapes. Some are affordable and others are advanced and could cost thousands of dollars. Some are designed for specific kinds of vehicles, and they can even provide advanced diagnostics for the car's electronic systems. Check out the owner's manual to learn how to program keys for your vehicle. Certain manufacturers employ proprietary technology that makes sure that the dealership is the sole entity that can create new keys, however other manufacturers make it easy for anyone to accomplish it on their own. If you are not able to program the new key on your own, then you can ask your dealer to do it, but it will be very costly. Another option is to purchase a keyprogrammer online. These are less expensive than going to the dealership however, they're not cheap. Be sure to look up the seller before buying one. Some aren't reliable and could damage your car. Transponder Chips Transponder chips are likely to be found in cars manufactured within the last 20 years. This is the little piece of plastic in the head of your car key that houses an RFID (Radio Frequency ID) chip with a unique code for the vehicle you own. When car keys reprogramming is activated by an electromagnetic field the chip emits a low-frequency signal. The signal is taken up by an antenna attached to the barrel of ignition. This allows the car's computer system to confirm that the transponder chip in the key is the correct one for your particular car. This prevents the vehicle from starting by hot-wiring, or by tampering. The chip inside the car key verifies that the owner is the one who owns the vehicle. This helps to reduce the risk of theft from your car. Transponder keys look like regular metal keys, but with caps made of plastic. The chip is inside the plastic portion of these keys. There are several different cuts: a standard cut, laser cut (also called a sidewinder or Ford Tibbe), and the Ford Tibbe. When the transponder key is inserted in the ignition barrel, a circuit within of the induction coil will send out the signal. The signal is taken up by the chip, which then transmits a signal to the vehicle. If the computer in the car is able to recognize the signal as correct it will turn off the vehicle immobilizer so that the engine can 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 individuals from tampering with the vehicle. However it isn't an unbreakable security measure. A skilled and determined thief may still be able to bypass this system by employing a device designed to detect the signal. It is evident that a transponder is a great option. This is something that all car owners should think about if they want to protect their investment and reduce the risk of theft. Key Fobs In addition to locking and unlocking doors, launching the car from a distance or making sound chirps to help locate the car in a parking space keys of today can also switch on a heated steering wheel or open all windows with a single button click. Many of these extra features might seem useful 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 which are transmitted through a small antenna located in the middle of the key. The transmission is encrypted, which helps stop others from stealing and retransmitting the signal. You can program a keyfob in a variety of ways depending on the model and brand of your vehicle. You may be able to do it yourself, but the majority of newer cars require that you visit an expert locksmith or dealer to program a replacement or additional fob. When you press the button on a key fob the microchip transmits a signal to the receiver inside the car with which it is linked. The receiver compared the information with the 'allowed signals' stored in the key fob and then locks or opens the car's doors. If the information isn't in line an chirping sound is heard and the car isn't permitted to operate. When a car is connected with a specific fob it will only accept signals from that device. This means that other fobs won't work with the vehicle even if they have the same appearance. This safeguards the integrity of the computer system of the car and blocks the use of unauthorized key fobs to gain control of it. The majority of car dealers who are newer will only work on cars with original fobs or genuine replacements supplied by the manufacturer. This is due to the fact that preparing a replacement fob requires technological and security skills that can only be found in the dealer service department. Certain aftermarket fobs, typically ones for older models that have less sophisticated systems can be programmed without the need for a dealer.