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How to Program Keys For Cars Locksmiths or automotive specialists are typically the ones who reprogram car keys. They could take your old key and then use a special tool to program a new one for your vehicle. This involves reprogramming a blank chip in your replacement key to ensure that it is compatible with the current settings on your vehicle. Some manufacturers make it easy for you, while others require the assistance of a locksmith or dealer. Self-Programming As technology for cars has improved throughout the years, ignition keys have evolved as well. The days of the simple mechanical keys that you could purchase from the hardware shop for less than $10 have gone. The newer models have computers with improved anti-theft protection. These cars require a transponder-chip-integrated key to be programmed by a professional locksmith mechanic or dealer in order to function properly. There are many types of car keys programming that can be accomplished by professional locksmiths. Certain types are extremely complex and may require advanced tools. These tools are usually not available to the general public and are only used by professionals. This kind of key programming is called EEPROM Programming. It requires expertise in soldering, electronic knowledge and a significant amount of time. Other kinds of car key programming are much simpler and can be done by the average person. They are accomplished using the onboard diagnostic port, which is accessible via a tool specifically designed for key fob programming. This method can be done by a locksmith who is trained using an online guide or the vehicle's owner's manual. Locksmiths with experience can program a new or replacement car key fob fast and accurately. This is the best option for car owners since they can offer a full range of services. They can offer a competitive cost and peace of mind knowing that the replacement key is guaranteed to work. Be aware that most automobiles only accept one programmed car key. So, if you're looking to save money, it could be a better idea purchase a functioning spare key fob, and have it programmed by an auto locksmith. You can be certain that the new key works and is programmed for your vehicle. Otherwise, you will need to pay the dealer for replacement keys and programming services. Key Programmers Modern vehicles require a key-programming method to set up their systems and start the car. In a number of cases keys must be programmed by the dealer or auto locksmith. The key might not function correctly or will not start the vehicle in any way. This is because the new key hasn't been programmed to the car's system. This can be quite costly. It is best to have two keys that work for your modern car so you can program the replacement key whenever required. Keyprogrammers can recode the transponder chip on a new mechanical key or key fob. It is also able to clone data from an existing key, allowing duplicates to be created. These are handheld devices that connect to the car's On-Board Diagnostics (OBD) port. They have diagnostic software that allows them to communicate with computers and also provide bidirectional interfaces to work with the immobilizer system. There are many different types of keyprogrammers available on the market. They come in all sizes, shapes and colors. Some are inexpensive while others are sophisticated and could cost thousands of dollars. Certain are designed for specific automobiles and provide advanced diagnostics of the car's electronic system. If you're interested in programming a new key to your vehicle, consult the owner's manual to learn how to do it. Some manufacturers use proprietary software that allows only dealers to make new keys. Other manufacturers make it simple for anyone to do. If you are unable to program a new key on your own, you can request the dealer to program it for you, but this will be very expensive. You can also purchase a keyprogrammer on the internet. These are cheaper than going to the dealership, but they're still not cheap. Before purchasing one make sure you research the seller. Some aren't trustworthy and may damage your vehicle. Transponder Chips If your car is made in the last 20 years, it is likely that it has a transponder chip inside of it. This is the little 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. The chip sends out an unintentional radio signal when it is activated by an electromagnetic field. The signal is received by a specific antenna that is attached to the ignition barrel. The computer system in the vehicle will then confirm that the chip in the key's transponder is the right one for your vehicle. This is the reason why doing hot-wiring or altering the ignition system of your vehicle to turn it on. The chip in the car key confirms that the owner is the one who is the owner of the vehicle. This helps to prevent car theft. Transponder keys resemble normal keys but have a plastic cap. The chip is contained in the plastic portion of the key and there are a few different kinds of cuts available on these keys: a cut, a laser cut (also known as a sidewinder key), or a Ford Tibbe key. When the transponder key is inserted into the ignition barrel, a circuit inside of the induction coil sends out a signal. The signal will then get taken up by the chip and cause it to transmit a signal back to the car. If the onboard car computer recognizes this signal as being the right one, it will shut down the immobilizer on the vehicle and allow the engine to begin. If the vehicle doesn't recognize the transponder as the correct signal, it won't start the engine and alert you with flashing lights and an alarm. This function is designed to discourage individuals from tampering with the vehicle. However it isn't a foolproof measure of security. A skilled and determined thief might be able bypass this system by using a device that can take over the signal. It is evident that a transponder is a great option. This is something that all vehicle owners should think about if they want to safeguard their investment and decrease the risk of theft. Key Fobs In addition to locking and unlocking doors, starting the car from a distance or making chirping sounds to help find the car in a parking space keys of today can also switch on the heated steering wheel or roll down all of the windows with a single press. These extra features could make it difficult to locate your car keys. Key fobs communicate with one with the car via radio frequencies which are transmitted through an antenna that is located in the middle of the key. This signal is encrypted to block other key fobs from stealing or modifying the signal. There are a few different ways to program a key fob based on your vehicle's make and model. You can sometimes do this yourself, but most newer vehicles require a locksmith shop or a professional to program a replacement or additional fob. When you press the button on a key fob the microchip transmits an indication to the receiver inside the vehicle with which it is paired. The receiver compared the information with the 'allowed signals' that are stored on the key fob and then it opens or closes the car's doors. If the information doesn't match the signals, the car will not be allowed to run. Once the car is linked with a specific fob it will only accept signals from the device that is associated with it. In turn, other fobs won't be able to work with the vehicle even though they look the same. This safeguards the integrity of the computer system that runs the car and blocks unauthorised key fobs from taking control of it. Most newer car dealers will only work on a car with original fobs or genuine replacements that are offered by the manufacturer. The reason for this is that the only place with the knowledge to create an appropriate replacement fob is the service department of the dealer. However, some aftermarket fobs that are typically designed for older models with less sophisticated systems — can be programmed by consumers without the need of a dealership.