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How to Program Keys For Cars Locksmiths or automotive specialists are typically the ones who re-program keys to cars. They could take your old key and then use a special tool to program a brand new one for your car. The process involves reprogramming the blank chip inside your replacement key to fit the current settings of your vehicle. Some manufacturers make it easy for you, while others require the assistance of a locksmith or dealer. Self-Programming The ignition keys have changed along with the car technology. Gone are the days of simple mechanical keys that could be made at a hardware store for under $10. Newer models are equipped with computers that are enhanced security 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. Professional locksmiths can carry out a variety of different types of programming for keys to cars. Some are complex and require sophisticated tools. These tools aren't generally accessible to the general public and are only used by professionals. This type of programming is referred to as EEPROM Programming. It requires expertise in soldering, electronic knowledge and a significant amount of time. Other kinds of programming car keys are a lot simpler and can be done by anyone who is able to. These are done with the onboard diagnostic port, which can be accessed with a special tool for key-fob programming. Locksmiths can execute this method with the assistance of an online guide as well as the owner's manual. Professional locksmiths are able to program a new or replacement car key fob swiftly. This is the best choice for vehicle owners as they can offer a full range of services. They also provide an affordable cost and assurance that the replacement key will work correctly. Be aware that most vehicles only accept one programmed car key. Therefore, if you want to save money, it could be better to buy a spare key fob and then have it programmed by an auto locksmith. This way, you will be certain that the new key is programmed for your vehicle and that it will work. You'll need to pay the dealer for programming and replacement keys if you do not. Key Programmers Modern cars require a key-programming procedure to set up their systems and start the car. In some instances the key needs to be programmed by an auto locksmith or dealer. The key may not function properly or it may not even start the car in any way. The reason is because the new key hasn't been programmed to the automobile's system – and this can be quite expensive. It's best to have two keys that work with your current car so you can program the replacement key if needed. A keyprogrammer is a tool that can recode the transponder chip on a new mechanical or key fob key. It can also clone data from an existing key to create duplicates. These devices are handheld units that connect to the car's On-Board Diagnostics (OBD) port. They come with diagnostic software that allows them to communicate with the computer as well as an interface that works bidirectionally with the immobilizer system. There are a myriad of types of keyprogrammers on the market. They are available in a variety of shapes, sizes and colors. Certain keyprogrammers are affordable while others may cost thousands of dollars. Some are specifically designed for certain kinds of vehicles, and they can even provide advanced diagnostics for your car's electronic systems. Refer to the owner's manual of your vehicle to learn how to program a key for your vehicle. Certain manufacturers have proprietary software that allows only the dealership to make new keys. Other manufacturers make it easy for anyone to complete. If you are unable to program the new key yourself or by yourself, you can have your dealer do it, but it'll be very costly. Another option is to purchase an online keyprogrammer. They are less expensive than visiting a dealer however, they aren't cheap. Before buying one do some research on the seller. Some aren't reliable and may damage your vehicle. Transponder Chips If your car was manufactured in the last 20 years, chances are it has a transponder inside of it. 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 car. When it is activated by an electro-magnetic field, the chip emits a low-frequency signal. This signal then gets absorbed by the special antenna that is fitted around the barrel that controls your ignition in your car. This allows the car's computer system to determine if the transponder chip inside the key is the correct one for the car you have. This stops the vehicle from being started through hot-wiring, or by tampering. The chip in the car key verifies that the owner is the one who is the owner of the vehicle. This will help reduce car theft. car key programming appear like normal keys but have caps made of plastic. The chip is located inside the plastic part of the keys. There are several different cuts such as a standard cut a Laser cut (also called a sidewinder or Ford Tibbe), and Ford Tibbe. When the transponder key is inserted in the ignition barrel, a circuit inside of the induction coil will send out a signal. The signal is received by the chip which sends a signal to the vehicle. If the computer onboard the car recognizes the signal as correct, it will disable vehicle immobilizer so that the engine can start. If the car isn't able to recognize the transponder as the correct signal, it will not start the engine, and will alert you with flashing lights and a siren. This function is designed to discourage individuals from tampering with the vehicle. However it's not an absolute security measure. A determined and skilled thief can still get around this system using a special device that blocks the signal. As you can see there are quite a few advantages to getting a transponder key. This is something that all car owners should consider if are looking to safeguard their investment and minimize the chance of theft. Key Fobs In addition to locking and unlocking doors, launching 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 of the windows with a single push. Many of these extra features may appear convenient however they could make it difficult for you to keep the track of your car keys. Key fobs use radio frequencies to communicate with each other and the car. The frequencies are transmitted by a small antenna inside the middle of the key. This signal is encrypted to prevent others from stealing or modifying the signal. There are many ways to program a key fob depending on the vehicle's make and model. Some cars allow you to do it yourself. However, the majority of modern models require you to visit a professional locksmith or dealer in order for them program a replacement key fob, or an alternative one. When you hit the button on a key fob, the microchip inside transmits a code to the car's receiver that it is linked to. The receiver then compares this information with the 'allowed' signals stored in the fob and then 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 function. Once the car has been associated with a particular fob, it will only accept signals from the device. Other fobs will not work with the car, despite the fact that they appear identical. This helps to protect the integrity of the car's computer system and prevent the use of unauthorized key fobs to gain control over the vehicle. The majority of newer dealerships will only deal with cars with original fobs or genuine replacements sold by the manufacturer. This is because the only place with the experience to design a replacement fob is in the service department of the dealer. However, some fobs from the aftermarket — usually those for older models with less sophisticated systems can be programmed by consumers without the need for dealers.