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How to Program Keys For Cars Locksmiths or automotive specialists are usually the ones who re-program keys for cars. They can make use of a specific program to program your new key using your old one. The procedure involves reprogramming your chip in your replacement key to fit the current settings of your vehicle. Certain manufacturers make this process simple however others require a locksmith or dealer. Self-programming As technology for cars has improved over time, the ignition keys have evolved too. The days of the basic mechanical keys you could buy from the hardware shop for less than $10 are long gone. Modern models come with computers that offer improved anti-theft protection. These cars require a transponder-chip-integrated key to be programmed by a professional locksmith mechanic or dealer to function properly. Professional locksmiths are able to perform various types of programming for keys to cars. Some are very complex and may require advanced tools. These tools are not accessible to the general public and are used only by professionals. This type of programming is referred to as EEPROM Programming. It requires soldering skills, electronic knowledge and a significant amount of time. Other forms of programming for car keys are a lot simpler and can be done by anyone who is able to. These are usually done by using the onboard diagnostics port which can be accessed with a special key-fob-programming tool. A locksmith can perform this procedure with the help of an online guide and the owner's manual. Professional locksmiths can program a new or replacement car key fob quickly. This is the best choice for vehicle owners as they can offer a full range of services. They can offer a competitive rate and the peace of mind knowing that the replacement key is going to work. It is important to keep in mind that a majority of vehicles can only accept one programmed key for their system. If you're trying to save money, it might be a better idea to purchase a functioning spare key fob, and have it programmed by an auto locksmith. This way, you will be certain that the new key has been programmed to your car and that it will work. You'll need to pay the dealer for programming and replacement keys if they don't. Key Programmers Modern automobiles require a key-programming procedure to set up their systems and to start the car. In reprogram car key must be programmed by the dealer or an auto locksmith. This is because the key could not function correctly, or it will not start the vehicle at all. The reason is because the new key hasn't been programmed into the vehicle's system, and this could be very costly. This is why it's a great idea to have two keys working for a modern automobile, so you can get the replacement key programmed if necessary. Keyprogrammers can recode the transponder chip on the new mechanical key or key fob. It also can clone information from an existing key to create duplicates. 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 that works with an immobilizer system. There are a number of different types of keyprogrammers available that are available, and they come in a variety of sizes and shapes. Some are inexpensive and others are advanced and can cost thousands of dollars. Some are made for specific automobiles and provide advanced diagnostics of the vehicle's electronic system. Consult your owner's guide to learn how to program keys for your vehicle. Certain manufacturers have proprietary software that only allows the dealership to create new keys. Other manufacturers make it easy for anyone to do. If you are unable to program a new key on your own or request the dealer to do it for you, however this can be expensive. You can also buy a keyprogrammer from the internet. They are less expensive than going to a dealership but they aren't cheap. Before buying one make sure you research the seller. Some aren't trustworthy and could cause damage to your vehicle. Transponder Chips If your car was manufactured in the last 20 years, it is likely that it contains a transponder chip within of it. It's a small piece of plastic in the head of your key which contains an RFID (Radio Frequency Identification) chip with a unique code that is specific to your particular vehicle. The chip emits an unintentional radio signal when it is activated by an electromagnetic field. The signal is then amplified by the specific antenna that is fitted around the barrel that controls your ignition in your vehicle. The computer system of the vehicle can then verify that the transponder chip of the key is the correct one for your car. This is what stops hot-wiring or tampering with the ignition system of your vehicle to get it started. 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. Regular transponder keys are shaped like regular keys and have an outer layer of plastic. The chip is housed within the plastic part of the key and there are a few different cuts that can be found on these keys: a standard cut, a laser cut (also known as a sidewinder key) or Ford Tibbe key. When the transponder key is inserted into the ignition barrel, a circuit within of the induction coil sends out an electrical signal. The signal will then get received by the chip, causing it to send a signal back to the car. If the computer onboard the car is able to recognize the signal as being correct it will turn off the car immobilizer, allowing the engine to start. If the vehicle doesn't recognize the transponder signal as the correct one, it will stop the engine from running and will alert you by flashing its lights and sounding 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 skilled criminal could still bypass this system with a specially designed device that intercepts the signal. As you can see there are quite number of advantages to having transponder keys. Every car owner should consider this in order to safeguard their investment and decrease the chance of theft. Key Fobs Key fobs today can be more than just a way to lock and unlock doors. They can also start the car from a distance, make chirping sounds to help locate the car, or switch on the heated steering wheel. These additional features could make it difficult to locate your car keys. Key fobs utilize radio frequencies to connect with one another and with the car. These frequencies are transmitted by a small antenna in the middle of the key. This communication is encrypted, which helps to prevent others from intercepting and re-transmitting the signal. You can program a keyfob in a variety of ways depending on the make and model of your vehicle. You may be able to do it yourself, however most modern vehicles require a dealer or professional locksmith to program a replacement or an additional fob. When you press the button on a key fob the microchip sends an indication to the receiver inside the vehicle with which it is paired. The receiver compares the information with the 'allowed signals' that are stored on the key fob and then opens or locks the car's doors. If the information does not match, the car will not be allowed to operate. Once the car is paired with a specific fob, it will only accept signals from the device that is associated with it. In turn, other fobs will not work with the vehicle even though they appear similar. This protects the integrity of the computer system that runs the car and prevents unauthorised key fobs from taking control over it. Most dealerships with newer cars will only accept cars with original fobs, or genuine replacements sold by the manufacturer. This is because the only place that has the knowledge to create the replacement fob is a dealer's service department. Some fobs from the aftermarket, especially those for older models that have less advanced systems can be programmed with out the need for a dealership.