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How to Program Keys For Cars Reprogramming the car key typically is the responsibility of a locksmith or automotive specialist. They will use a special software to program the new key using your old one. The procedure involves reprogramming the blank chip inside the replacement key to match the current settings of your vehicle. Some manufacturers make this easy but others require a dealer or locksmith. Self-programming The ignition keys have changed along with the car technology. The days of the simple mechanical keys you could make at the hardware shop for less than $10 are gone. Modern models come with computers that offer improved anti-theft protection. These cars require a transponder-chip integrated key to be programmed by a professional locksmith mechanic or dealer to function properly. There are many types of car key programming that can be accomplished by professional locksmiths. Some are very complex and may require advanced tools. These tools are not accessible to the general public and are used only by professionals. This kind of key programming is called EEPROM Programming. It requires soldering skills, electronic knowledge and a lot time. Other forms of programming car keys are a lot simpler and can be accomplished by anyone who is able to. They are typically done using the onboard diagnostics port, which is accessible with a special key-fob-programming tool. A locksmith can perform this procedure with the help of a guide online and the owner's manual. Professional locksmiths can program a new or replacement car key fob quickly. This is the ideal option for car owners since they are able to provide a wide range of services. They also can provide a competitive price and peace of mind that the new key will work properly. Keep in mind that the majority of automobiles only accept one programmed car key. Therefore, if you want 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 assured that the new key will function and is programmable for your car. You will have to pay the dealer for programming and replacement keys if they don't. Key Programmers Modern cars require a key-programming process to initialize their vehicle's systems and then start the vehicle. In certain instances, the key will need to be programmed by an auto locksmith or dealer. This is because the key may not work properly or start the car at all. This is because the key has not yet been programmed into the car's system. This could be costly. This is why it's a good idea to always have two working keys for a modern car and have the replacement key programmed when needed. A keyprogrammer is a device that recodes the transponder chip into the form of a new key fob or mechanical key. It can also clone the data of an existing key which allows duplicate keys 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 and also provide bidirectional interfaces to work with the immobilizer system. There are a myriad of types of keyprogrammers on the market. They come in all sizes, shapes and colors. Some are cheap while others are advanced and could cost thousands of dollars. Some are made for specific automobiles and offer advanced diagnostics of the vehicle's electronic system. Consult your owner's guide to learn how to program the key to your vehicle. Certain manufacturers employ proprietary technology that ensures the dealership is the only entity that can create new keys, however other manufacturers make it fairly easy for anyone to accomplish it on their own. If you're unable to program the new key by yourself and you are unable to do it, then request your dealer to do it, however it will cost you a lot. Another option is to purchase a keyprogrammer online. They are cheaper than visiting a dealership but they aren't cheap. Make sure you look up the seller before buying one. Some aren't reliable and can damage your vehicle. Transponder Chips If your car is made in the past 20 years, then it has a transponder inside of it. It's the tiny plastic piece inside the head of your car key that houses an RFID (Radio Frequency ID) chip with a code unique to the vehicle you own. When it is activated by an electromagnetic field, the chip emits a low level signal. This signal then gets amplified by the specific antenna that is fitted around the barrel that controls your ignition in your vehicle. This allows the vehicle's computer system to verify that the transponder chip in the key is the right one for your particular car. This is the reason why from modifying or hot-wiring the ignition system of the vehicle to start it. The chip in the key also confirms that you are the legitimate owner of the vehicle. This will help reduce car theft. Transponder keys resemble regular metal keys but have caps made of plastic. The chip is inside the plastic part of these keys. There are several different cuts that are a standard cut, Laser cut (also known as a sidewinder or Ford Tibbe), and Ford Tibbe. When the transponder key is inserted into the ignition barrel, a circuit within of the induction coil will send out an electrical signal. The signal will then get absorbed by the chip and cause it to send a signal back to the car. If the computer inside the car detects the signal as valid it will turn off the car immobilizer to allow the engine start. If the vehicle does not recognize the transponder signal as being the right one, it will keep the engine from running and will notify you by flashing its lights and sounding a siren. This is designed to deter people from trying to alter the vehicle, however it is not a foolproof security measure. A skilled and determined thief may still be able to bypass this system by employing a device designed to intercept the signal. It is evident that the transponder is an excellent option. All car owners must take this into consideration in order to safeguard their investment and reduce theft risk. Key Fobs In addition to locking and unlocking doors, launching the car from a distance or making sound chirps to help locate a car in a parking space keys of today can also switch on a heated steering wheel or roll down all windows with just a single press. Many of these extra features might seem useful but they could make it harder for you to keep the keys to your car. Key fobs communicate with each 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 prevent others from stealing or stealing the signal. Keyfobs can be programmed in a variety of ways depending on the make and model of your vehicle. It is possible to do this yourself, however most modern automobiles require a dealer or professional locksmith to program a replacement or an additional fob. When you press a key fob's button it transmits a code to the car's radio that it is paired with. The receiver compares this information to the 'allowed' signals in the fob and then either opens or closes the door. If the information doesn't match the signals, the car will not be allowed to run. After the car has been paired with a specific fob, it only accepts signals from that device. 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 vehicle and stops the use of unauthorized key fobs to gain control over it. The majority of newer dealerships will only deal with cars with original fobs, or genuine replacements sold by the manufacturer. This is because preparing the replacement fob is a process that requires technological and security knowledge which can only be obtained in the dealer's service department. However, some fobs from the aftermarket that are typically designed for older models that have less sophisticated systems — can be programmed by the consumer without the need of a dealership.