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How to Program Keys For Cars Typically, reprogramming car keys is the work of a locksmith or automotive specialist. They can take your existing key and use a specific tool to program a brand new one for your vehicle. The process involves reprogramming the blank chip inside the replacement key to match the current settings of your vehicle. Certain manufacturers make this process simple, while others require a locksmith or dealer. Self-programming As car technology has evolved throughout the years, ignition keys have developed too. The days of simple mechanical-only keys that could be made at an hardware store for less than $10. Modern models come with computers that have improved security against theft. These cars require a transponder-chip-integrated key to be programmed by a professional locksmith, car dealer or mechanic to function properly. There are many types of car keys programming that can be done by professional locksmiths. Some are very complex and may require sophisticated tools. These tools aren't usually accessible to the general public and are utilized only by professionals. This kind of car key programming is known as EEPROM Programming and requires soldering, electronic skills and a lot of time. Other types of key programming can be performed by anyone. These are usually done by using the diagnostics port on the car, which can be accessed with an instrument for programming keys. This procedure can be carried out by a professional locksmith with the help of an online guide or an owner's manual. Locksmiths with experience can program a brand new or replacement car key fob swiftly and precisely. This is the best option for car owners as they can provide a complete range of services. They also provide an affordable price and ensure that the new key will work correctly. It's important to remember that a majority of vehicles can only accept a single key for their system. If you're looking to save money, it's a great idea to buy an extra key fob that functions and then have it programmed. You can be sure the new key will work and is programmed for your vehicle. You will have to pay the dealer for programming and replacement keys if they don't. Key Programmers Modern cars frequently require a key programming process to start the system of the vehicle and allow the car to begin. In some instances, the key will need to be programmed by an auto locksmith or dealer. The key may not work correctly or will not start the car in any way. This is because the key hasn't yet been programmed into the car's system. This could be costly. This is why it's a good idea to have two keys working for modern vehicles and have the replacement key programmed when required. Keyprogrammers can recode the transponder chip of the 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 the computer as well as a bidirectional interface for working with the immobilizer system. There are a myriad of types of keyprogrammers on the market. They are available in a variety of sizes, shapes and colors. Some are cheap, while others are very sophisticated and can cost thousands of dollars. Certain are designed for specific vehicles and can provide advanced diagnostics of the vehicle's electronic system. If you're looking to program the new key into your vehicle, refer to the owner's manual for instructions on how to do it. Certain manufacturers have proprietary software that only permits the dealership to make new keys. Other manufacturers make it simple for anyone to do. If you are unable to program the new key on your own, then you can ask your dealer to do it, but it'll cost you a lot. Another option is to purchase an online keyprogrammer. These are less expensive than going to a dealer however, they're expensive. Before buying one, do some research on the seller. Some are not reliable and could damage your vehicle. Transponder Chips Transponder chips are likely be found in vehicles manufactured in the last 20 years. This is the little plastic piece in the head of the car key that has an RFID (Radio Frequency ID) chip that has a unique code to your vehicle. When it is activated by an electro-magnetic field the chip emits a low-frequency signal. This signal is then received by a specific antenna that is attached to the ignition barrel. This allows the computer in your vehicle system to determine if the transponder chip in the key is the correct one for your particular car. This stops the vehicle from being started by hot-wiring, or by altering the key. The chip in the key also proves that you are the genuine owner of the vehicle. This will help reduce car theft. Transponder keys that are regular in shape like regular metal keys with an outer layer of plastic. The chip is contained in the plastic portion of the key and there are different types of cuts on these keys: a regular standard cut, a laser cut (also called a sidewinder key) or Ford Tibbe key. A circuit inside the induction coil will emit an electrical signal when the transponder is inserted into an ignition barrel. The signal is taken up by the chip, which then transmits a signal to the vehicle. If the car's computer recognizes this signal as being the right one, it will turn off the vehicle's immobilizer and allow the engine to begin. If the car does not recognize the transponder signal as being the proper one, it will prevent the engine from starting and will alert you by flashing its lights and sounding a siren. This feature is designed to discourage people from trying to alter the vehicle, however it isn't a foolproof security measure. A skilled and committed thief may still be able to bypass this system by employing a device designed to detect the signal. As you can see there are quite few advantages to getting a transponder key. This is something that all car owners should think about if they want to safeguard their investment and decrease the chance of theft. Key Fobs In addition to locking and unlocking doors, starting the car remotely, or making sound chirps to help locate a car in a parking lot, today's key fobs can also switch on a heated steering wheel or roll down all of the windows with a single press. A lot of these additional features might seem useful, but they can also make it harder for you to keep track of your car keys. Key fobs are able to communicate with each other and with the car through radio frequencies which are transmitted via an antenna in the center of the key. This communication is encrypted to stop others from stealing or stealing the signal. There are a few different ways to program a key fob, based on the make and model. 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 sends a signal to the receiver in the car with which it is linked. The receiver then compares this information to the 'allowed' signals on the fob and either opens or closes the door. If the data doesn't match, a chirping sound is heard and the car isn't allowed to function. Once the car is linked with a specific fob, it will only receive signals from the device that is associated with it. This means that other fobs will not work with the vehicle even though they appear similar. This is to safeguard the integrity of the vehicle's computer system, and also to stop the use of unauthorized key fobs to gain control of the vehicle. 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 only place with the expertise to prepare a replacement fob is in the service department of the dealer. Certain aftermarket fobs, typically ones for older models with less sophisticated systems, can be programmed without the need for a dealership.