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How to Program Keys For Cars Locksmiths or automotive specialists are usually the ones who reprogram keys to cars. They can take your old working key and use a special tool to program a brand new one for your car. The procedure involves reprogramming your blank chip inside the replacement key to suit the current settings of your vehicle. Certain manufacturers make it simple, while other require a locksmith or dealer. Self-Programming As technology for cars has improved over time, the ignition keys have evolved too. The days of simple mechanical keys that you could buy from a hardware store for less than $10 are gone. The latest models are equipped with computers that have improved anti-theft security. To function correctly, these vehicles require a transponder chip-integrated key be programmed into the vehicle by a certified locksmith or a car dealer/mechanic. Professional locksmiths can perform various kinds of programming for keys for cars. Certain are complicated and require sophisticated tools. These tools are usually not accessible to the general public and are used only by professionals. This kind of programming is referred to as EEPROM Programming. It requires soldering skills, electronic knowledge and a significant amount of time. Other kinds of key programming can be carried out by anyone. They are typically done using the onboard diagnostics port which can be accessed with the key-fob-programming device. Locksmiths can carry out this method with the assistance of an online guide and the owner's manual. Professional locksmiths can program a new or replacement car key fob swiftly. This is the best option for car owners since they can offer a full range of services. They also provide an affordable cost and assurance that the new key will work properly. It is important to note that many vehicles will only accept one key that has been programmed for their system. If you're looking to save money, it's a good idea to get an additional key fob that is functional and have it programmed. You can be sure the new key will function and is programmed for your car. You will have to pay the dealer for programming and replacement keys if you do not. Key Programmers Modern vehicles require a key-programming procedure to initialize their vehicle's systems and then start the vehicle. In some instances keys must be configured by the dealer or an auto locksmith. The key might not function properly or it may not even start the vehicle at all. This is because the key hasn't yet been programmed into the vehicle's system. This can be costly. It's best to have two keys that are compatible for your modern car so you can program the replacement key whenever needed. A keyprogrammer is a tool that can recode the transponder chip on an entirely new mechanical or key fob key. It is also able to clone data from an existing key, allowing duplicates to be created. These are handheld devices that connect 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 for working with an immobilizer system. There are programming car key of keyprogrammers that are available and they come in all sizes and shapes. Some are cheap and others are advanced and could cost thousands of dollars. Certain models are specifically designed for certain types of vehicles and can provide advanced diagnostics for the electronic systems of the car. If you're looking to program the new key into your vehicle, check the owner's manual for instructions on how to do it. Certain manufacturers employ proprietary software that allows only dealers to create new keys. Other manufacturers make it simple for anyone to do. If you're unable to program a new key by yourself or ask the dealership to do it for you, however it will cost a lot. You can also buy a keyprogrammer from the internet. These are less expensive than visiting a dealership however they're not cheap. Be sure to investigate the seller prior to purchasing one – some are not reliable and could harm your vehicle. Transponder Chips If your car is made in the past 20 years, chances are it has a transponder inside of it. It's a tiny piece of plastic 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. When activated by an electro-magnetic field the chip emits a low level signal. The signal is then amplified by the specific antenna that is fitted around the barrel that controls your ignition in your vehicle. This allows the computer in your vehicle system to determine if the transponder chip that is in the key is the correct one for the car you have. This prevents the vehicle from being started through hot-wiring or altering the key. The chip in the car key confirms that the owner is the person who is the owner of the vehicle. This can reduce car theft. Regular transponder keys are designed like regular keys, but with an outer layer of plastic. The chip is contained within the plastic part of the keys. There are several different cuts: a standard cut, Laser cut (also called a sidewinder or Ford Tibbe), and a Ford Tibbe. A circuit inside the induction coil emits signals when the transponder is placed in the the ignition barrel. The signal will be received by the chip, causing it to transmit a signal to the car. If the computer onboard the car is able to recognize the signal as correct it will turn off the car immobilizer, allowing the engine to start. If the car 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 system is designed to deter those who would attempt to alter the vehicle. However it's not a foolproof measure of security. A determined and skilled thief could still evade this system with a specially designed device that blocks 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 in order to safeguard their investment and decrease the risk of theft. Key Fobs Key fobs today can do more than just lock and unlock doors. They can also turn on the car remotely, emit chirping sounds to help locate the car or turn on the heated steering wheel. A lot of these features might seem useful but they could make it more difficult to keep the keys to your car. Key fobs communicate with one with the car via radio frequencies which are transmitted through an antenna that is located in the center of the key. This communication is encrypted, which helps prevent others from intercepting and re-transmitting the signal. There are a few different ways to program a key fob depending on the model and make. You may be able to do it yourself, however most modern cars require that you visit a dealer or professional locksmith to program a replacement or a second fob. When you press a key fob's button it transmits an encoded code to the car's radio that it is linked to. The receiver then compares the data with the 'allowed signals' that are stored in the key fob, and then locks or opens the car door. If the information doesn't match, the car will not be allowed to drive. When a car is connected with a specific fob it will only receive signals from that specific device. In turn, other fobs will not work with the vehicle even though they have the same appearance. This protects the integrity of the computer system that runs the car and blocks unauthorized key fobs gaining control over it. The majority of newer dealerships will only deal with vehicles that have original fobs or genuine replacements sold by the manufacturer. The reason for this is that the only place that has the knowledge to create the replacement fob is the service department of a dealer. Certain aftermarket fobs, typically those from older models with less sophisticated systems can be programmed without the need for a dealership.