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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 make use of a specific program to program your new key using your old one. This involves changing the chip inside your replacement key so that it is compatible with the current settings of your vehicle. Certain manufacturers make it simple, while other require a locksmith or dealer. Self Programming The ignition keys have developed in tandem with the advancements in car technology. There are no more simple mechanical-only keys that could be manufactured at a hardware store for under $10. Modern models come with computers that offer improved security against theft. The cars require a transponder chip-integrated key to be programmed by a professional locksmith, mechanic or dealer in order to function properly. Professional locksmiths are able to perform various kinds of programming for keys for cars. Certain types are extremely complex and may require sophisticated tools. These tools aren't usually available to the public and are used only by professionals. This type of car key programming is referred to as EEPROM Programming and requires soldering, electronic knowledge, and a lot of time. Other types of key programming can be performed by anyone. These are usually done by using the onboard diagnostics port, which is accessible with a special key-fob-programming tool. This method can be performed by a trained locksmith using an online guide or the car's owner manual. The majority of locksmiths who are professionals can program a new or replacement car key fob fast and accurately. This is the ideal option for car owners since they can offer a full range of services. They can provide a reasonable cost and peace of mind knowing that the replacement key is going to work. Remember that most vehicles can only accept a single programmed car key. If you're trying to save money, it might be better to purchase a working spare key fob and have it programmed by an auto locksmith. This way, you will ensure 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 vehicles frequently require a key programming procedure to set up the car's system and allow the vehicle to start. In some instances the key will have to be programmed by an auto locksmith or a dealer. The key may not work properly or it may not even start the car in any way. This is because the key has not yet been programmed into the car's system. This can be expensive. It's best to have two keys that are compatible with your current car so you can program the replacement key when needed. A keyprogrammer is a tool that recodes the transponder chip into the form of a new mechanical or key fob key. It is also able to clone data of an existing key and allow 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 that allows them to communicate with a computer. They also have a bidirectional interface to work with an immobilizer system. There are many different types of keyprogrammers available on the market and they come in all sizes and shapes. Some are cheap and others are advanced and can cost thousands of dollars. Certain models are specifically designed for vehicles and can provide advanced diagnostics of the car's electronic system. Check out the owner's manual to learn how to program keys for your vehicle. Certain manufacturers have proprietary technology that ensures the dealership is the only entity able to create new keys. However, other manufacturers make it fairly easy for anyone to accomplish it themselves. If you're unable to program a new key yourself or request the dealer to program it for you, however it will cost a lot. Another option is to purchase a keyprogrammer online. These are cheaper than going to a dealer, but they're still expensive. Before purchasing one, do some research on the seller. Some aren't trustworthy and could cause damage to your vehicle. Transponder Chips Transponder chips can be found in cars manufactured within the last 20 years. It's the tiny plastic piece inside the head of your car key that contains an RFID (Radio Frequency ID) chip with a unique code for your car. The chip emits an unintentional radio signal when it is activated by an electromagnetic field. The signal is then taken up by an antenna that is attached to the barrel of ignition. This allows the car's computer system to verify that the transponder chip that is in the key is the correct one for the car you have. This prevents the vehicle from starting by hot-wiring, or by manipulating. The chip in the key also verifies that you are the legal owner of the vehicle. This will help reduce car theft. Transponder keys appear like regular metal keys but they have caps made of plastic. The chip is housed in the plastic portion of the key and there are different cuts that can be found on these keys: a regular cut, a laser cut (also known as a sidewinder key), or a Ford Tibbe key. A circuit inside the induction coil will emit an electrical signal when the transponder is placed in the ignition barrel. The signal will be received by the chip, causing it to transmit a signal back to the car. If the computer on the car recognizes this signal as being the right one, it will turn off the vehicle immobilizer and allow the engine to start. If the vehicle doesn't recognize the transponder as the correct signal, it won't start the engine and warn you with flashing lights and a siren. This feature is designed to discourage individuals from tampering with the vehicle. However it isn't an absolute security measure. A skilled and determined thief could still be able to escape this security system by using a device that can intercept the signal. As you can see, there are quite a number of benefits to having a transponder key. All car owners should take this into consideration when they want to safeguard their investment and reduce the chance of theft. Key Fobs In addition to locking and unlocking doors, starting the car remotely, or making sound chirps to help locate the car in a parking lot keys of today can also turn on the heated steering wheel or roll down all windows with a single button click. Many of these extra features may appear convenient however they could make it harder for you to keep the track of your car keys. Key fobs communicate with one other and the car using radio frequencies which are transmitted via a small antenna located in the center of the key. This signal is encrypted to block other key fobs from stealing or modifying the signal. There are many ways to program a key fob depending on the model and make. You may be able to do it yourself, but the majority of newer cars require that you visit a locksmith shop or a professional to program a replacement or an additional fob. When you press the button on a key fob the microchip sends a signal to the receiver inside the vehicle with which it is linked. The receiver compared this information to the signals that are allowed in the fob and then either locks or opens the door. If the data doesn't match the signals, a chirping sound can be heard and the car isn't able to function. Once the car is connected to a specific fob, it can only receive signals from the device. In turn, other fobs will not work with the vehicle even if they have the same appearance. This protects the integrity of the computer system of the car and prevents the use of unauthorized key fobs to gain control of it. The majority of car dealers who are newer will only work on a car with original fobs or genuine replacements offered 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 dealer.