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How to Program Keys For Cars Typically, reprogramming car keys is the job of a locksmith or automotive specialist. They can take your existing key and then use a special tool to program a new key for your car. The procedure involves reprogramming your chip in your replacement key to match the current settings of your vehicle. Certain manufacturers make this process simple but others require a dealer or locksmith. Self Programming The ignition keys have developed in tandem with the advancements in car technology. The days of simple mechanical keys that you could purchase from a hardware shop for less than $10 have gone. The newer models have computer systems that are more secure 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 kinds of car key programming that can be accomplished by locksmiths who are professionals. Certain types are more complex and require sophisticated tools. These tools aren't generally available to the public and are used only by professionals. This type of key programming is called EEPROM Programming. It requires the ability to solder, electronic skills and a lot of time. Other types of key programming can be carried out by anyone. They are typically accomplished by using the diagnostics port on the car, which can be accessed with a special key-fob-programming tool. A locksmith can perform this method with the assistance of an online guide and the owner's manual. Professional locksmiths can program a replacement or new car key fob swiftly. This is the best choice for car owners as they can provide a complete range of services. They can offer a competitive price and peace of mind knowing that the replacement key is guaranteed to work. Keep in mind that the majority of vehicles can only accept a single programmed car key. Therefore, if you want to save money, it may be better to purchase a functioning spare key fob, and have it programmed by an auto locksmith. You can be assured that the new key will function and is programmable for your vehicle. You'll need to pay the dealer for programming and replacement keys if you don't. Key Programmers Modern vehicles require a key-programming method to initialize their vehicle's systems and then start the vehicle. In many cases, the key must be programmed by the dealer or auto locksmith. This is because the key could not function correctly, or it will not start the car at all. The reason for this is that the new key has not been programmed to the automobile's system. This can be quite costly. This is why it's a great idea to have two keys working for modern vehicles and to have the replacement key programmed when required. A keyprogrammer can recode the transponder chip on an entirely new mechanical key or key fob. It also can clone information from an existing key to create duplicates. These are handheld devices connected to a car's On Board Diagnostics (OBD port). They come with diagnostic software that allows them to communicate with a computer. They also feature a bidirectional user interface that works with an immobilizer system. There are a variety of keyprogrammers on the market. They come in all sizes, shapes, and colors. Some are affordable and others are sophisticated and could cost thousands of dollars. Some are designed for specific types of cars and can offer advanced diagnostics for the vehicle's electronic systems. Consult your owner's guide to learn how to program the key to your vehicle. Certain manufacturers have proprietary software that only permits dealers to create new keys. Other manufacturers make it simple for anyone to complete. If you are unable to program a new key on your own, you can request the dealer to program it for you, but this can be expensive. Another option is to buy an online keyprogrammer. They're less expensive than going to the dealership however they're expensive. Before purchasing one, do some research on the seller. Some aren't trustworthy and may damage your vehicle. Transponder Chips If your car is made in the past 20 years, then it has a transponder inside of it. This is a little plastic piece on the back of your key that contains an RFID (Radio Frequency Identification) chip with a unique code that is specific to your particular vehicle. The chip sends out an unintentional radio signal when it is activated by an electromagnetic field. This signal is then received by a specific antenna attached to the barrel of ignition. The computer system of the vehicle can then verify that the transponder chip of the key is the right one for your car. This is what stops from modifying or hot-wiring the ignition system of your vehicle to turn it on. The chip in 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. Regular transponder keys are designed like regular keys, but with an outer layer of plastic. The chip is contained within the plastic part of the key, and there are a few different cuts that can be found on these keys: a regular cut laser cut (also called a sidewinder), or a 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 and cause it to transmit a signal back to the car. If the computer onboard the car recognizes the signal as being correct it will turn off the vehicle immobilizer, allowing the engine to start. If the vehicle doesn't recognize the transponder as being the proper signal, it won't start the engine and will notify you via flashing lights and a siren. This feature is designed to discourage people from attempting to hack into the vehicle, but it's not a 100% security measure. A skilled and committed thief could still be able to get around this system using a special device to take over the signal. You can see that the transponder is a good option. All car owners should consider this in order to safeguard their investment and minimize theft risk. Key Fobs In addition to locking and unlocking doors, starting the car remotely, or making chirping sounds to help find a car in a parking lot, today's key fobs can also switch on a heated steering wheel or roll down all windows with a single press. A lot of these features may appear convenient, but they can also make it difficult for you to keep track of your car keys. Key fobs communicate with each other and the car using radio frequencies that are transmitted via an antenna in the middle of the key. This communication is encrypted, which helps stop others from stealing and re-transmitting the signal. There are many ways to program a key fob depending on your vehicle's model and make. It is possible to do this yourself, but the majority of newer vehicles require 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 in the vehicle with which it is paired. 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. After the car has been connected to a specific fob, it will only accept signals from that device. This means that other fobs won't work with the vehicle even though they appear similar. This ensures the security of the computer system in the vehicle and stops the use of unauthorized key fobs to gain control of it. The majority of newer dealerships will only deal with cars with original fobs or genuine replacements supplied by the manufacturer. The reason for this is that the only place with the knowledge to create a replacement fob is in a dealer's service department. However, some fobs from the aftermarket — usually those for older models that have less sophisticated systems can be programmed by consumers without the need for dealers.