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How to Program Keys For Cars Locksmiths or automotive specialists are usually the ones who re-program car keys. They can use a special program to program your new key with your old one. The procedure involves reprogramming your blank chip inside your replacement key to suit the current settings of your vehicle. Certain manufacturers make it simple, while other require an expert locksmith or dealer. Self Programming The ignition keys have developed in tandem with the advancements in car technology. The days of the simple mechanical keys that you could buy from the hardware shop for less than $10 are gone. Modern models come with computers that offer improved anti-theft protection. In order to work correctly, these vehicles require that a transponder chip key be programmed to the vehicle by a professional locksmith or a car dealer/mechanic. Professional locksmiths can carry out various kinds of programming for keys to cars. Some are complex and require advanced tools. These tools are not available to the general public and are only used by professionals. This type of programming is known as EEPROM Programming. It requires soldering skills, electronic knowledge and a significant amount of time. Other types of car key programming are much easier and can be done by the average person. They are typically done using the onboard diagnostics port which is accessible with the key-fob-programming device. A locksmith can perform this method with the help of a guide online and the owner's manual. Professional locksmiths can program a replacement or new car key fob quickly. This is the best choice for vehicle owners as they can offer a full range of services. They can provide a competitive rate and the peace of mind knowing that the replacement key will continue to function. It's important to remember that a majority of vehicles can only accept one programmed key for their system. Therefore, if you want to save money, it may be a better idea purchase a functioning spare key fob, and have it programmed by an auto locksmith. This way, you will ensure that the new key is programmed to your car and will function. Otherwise, you will need to pay the dealer for replacement keys and programming services. Key Programmers Modern vehicles often require a key programming procedure to initialize the vehicle's system and allow the vehicle to start. In many cases, the key must be programmed by the dealer or auto locksmith. The key may not work correctly or will not start the vehicle at all. This is because the key has not yet been programmed into the car's system. This can be costly. This is why it's a good idea to always have two working keys for modern vehicles and have the replacement key programmed if required. A keyprogrammer can reprogram a transponder chip on the new mechanical key or key fob. It is also able to copy data from an existing key to create duplicates. These are handheld devices connected to a car's On Board Diagnostics (OBD port). They are equipped with diagnostic software, which allows them to communicate with computers. They also have a bidirectional user interface to work with an immobilizer system. There are a variety of keyprogrammers available on the market. They come in all sizes, shapes and colors. Some are cheap, while others are very sophisticated and could cost thousands of dollars. G28 are specifically designed for vehicles and can provide advanced diagnostics of the vehicle's electronic system. Consult your owner's guide to learn how to program a key for your vehicle. Some manufacturers use proprietary technology that makes sure that the dealership is the only entity that can make new keys, however other manufacturers make it fairly easy for anyone to do it on their own. If you are unable to program a new key on your own, you can ask the dealership to program it for you, but this will be very expensive. You can also purchase a keyprogrammer on the internet. These are less expensive than going to a dealer however, they're not cheap. Before buying one do some research on the seller. Some aren't reliable and may damage your vehicle. Transponder Chips Transponder chips are likely to be found in cars manufactured in the last 20 years. This is a little plastic piece in the head of your key that contains a RFID (Radio Frequency Identification) chip with a unique code that is specific to the specific vehicle you own. The chip sends out an unintentional radio signal when it is activated by an electromagnetic field. The signal is then taken up by the antenna that is attached to the ignition barrel of your vehicle. This allows the car's computer system to determine if the transponder chip inside the key is the right one for your particular car. This is what stops doing hot-wiring or altering the ignition system of your vehicle to get it started. The chip inside the key also proves that you are the legal owner of the vehicle. This helps to reduce the risk of theft from your car. Transponder keys look like normal keys but they have caps made of plastic. The chip is housed inside the plastic portion of the key, and there are different cuts that can be found on the keys: a standard cut, a laser cut (also called a sidewinder key) or Ford Tibbe key. 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 be absorbed by the chip, causing it to send a signal back to the car. If the computer inside the car detects the signal as being correct it will turn off the car immobilizer to allow the engine start. If the car doesn't recognize the transponder as the correct signal, it will not start the engine and warn you with flashing lights and an alarm. This is designed to discourage people from trying to alter the vehicle, but it isn't a foolproof security measure. A skilled and determined criminal may still be able to bypass this system by employing a device designed to take over the signal. As you can see there are quite a number of benefits to having a transponder key. Every car owner should take this into consideration when they want to safeguard their investment and reduce the risk of theft. Key Fobs In addition to locking and unlocking doors, starting the car from a distance or making noises to aid in finding a car in a parking lot, today's key fobs can also switch on a heated steering wheel or open all windows with a single click. A lot of these features may seem convenient however they could make it more difficult to keep the track of your car keys. Key fobs communicate with one other and the car using radio frequencies which are transmitted by a small antenna located in the middle of the key. The signal is encrypted to block other key fobs from stealing or stealing the signal. There are a few different ways to program a key fob depending on the model and make. Certain cars let you do this by yourself. However, the majority of modern models require you to visit an expert locksmith or dealer in order to program a replacement key fob or an additional one. When you press the button on a key fob, the microchip sends an indication to the receiver in the car that it is paired. The receiver compares this information with the signals that are allowed inside the fob, and either opens or closes the door. If the data does not match, the car will not be allowed to run. Once the car has been connected to a specific fob, it only accepts signals from that device. Other fobs won't work with the car, despite the fact that they look identical. This safeguards the integrity of the computer system in the vehicle and stops unauthorised key fobs from taking control over it. The majority of car dealers who are newer will only work on cars with original fobs or genuine replacements that are supplied by the manufacturer. This is due to the fact that preparing the replacement fob is a process that requires technological and security skills that can only be found in the dealer's service department. However, some fobs from the aftermarket typically for older models with less sophisticated systems — can be programmed by consumers without the need for an authorized dealer.