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How to automotive key programming For Cars Locksmiths or automotive specialists are usually the ones who reprogram keys to cars They can make use of a specific program to program your new key by using your previous one This involves reprogramming a blank chip in your replacement key so that it is compatible with the current settings on your vehicle Some manufacturers make it easy while other require the assistance of a locksmith or dealer Selfprogramming The ignition keys have changed in tandem with the advancements in car technology The days of simple mechanical keys you could purchase from a hardware store for less than 10 have gone The latest models come with computer systems that are more secure against theft These cars require a transponderchip integrated key to be programmed by a professional locksmith car dealer or mechanic to function properly Professional locksmiths are able to perform a variety of different types of programming for keys for cars Some are complex and require advanced tools These tools arent generally accessible to the general public and are only used by professionals This kind of programming for car keys is known as EEPROM Programming and requires soldering electronic expertise and a lot of time Other forms of programming car keys are a lot simpler and can be performed by the average person They can be done by using the onboard diagnostic port which is accessible via a tool specifically designed for key fob programming Locksmiths can execute this procedure with the help of an online guide as well as the owners manual Professional locksmiths are able to program a replacement or a brand new car key fob quickly This is the best choice for a vehicle owner since they can offer a wide range of services They can offer a competitive cost and peace of mind knowing that the replacement key is going to work It is important to keep in mind that a majority of vehicles can only accept one key that has been programmed for their system If youre looking to save money its a great idea to purchase a spare key fob that functions and then have it programmed This way you can be sure that the new key is programmed to your car and that it works Otherwise you will need to pay the dealer for replacement keys and programming services Key Programmers Modern cars often require a key programming procedure to initialize the vehicles system and allow the vehicle to begin In some cases the key will need to be programmed by an auto locksmith or dealer The key may not work properly or it may not even start the vehicle at all This is because the key has not yet been programmed into the cars system This can be expensive Its best to have two keys that work with your current car so you can program the replacement key if needed Keyprogrammers are devices that recodes the transponder chip into the form of a new mechanical or key fob key It is also able to copy information from an existing key to make duplicates These are handheld devices that connect to the cars OnBoard Diagnostics OBD port They have diagnostic software that enables them to communicate with computers and they also have bidirectional interfaces to work with the immobilizer system There are many different kinds of keyprogrammers that are available and they come in all sizes and shapes Some are affordable while others are very sophisticated and could cost thousands of dollars Certain models are specifically designed for vehicles and can provide advanced diagnostics of the vehicles electronic system If youre interested in programming the new key into your vehicle check the owners manual to find out how to do it Some manufacturers use proprietary technology that ensures the dealership is the only entity that can make new keys however other manufacturers make it fairly easy for anyone to accomplish it themselves If you are not able to program the new key by yourself and you are unable to do it then ask your dealer to do it but itll be very costly You can also purchase a keyprogrammer from the internet Theyre less expensive than going to the dealership however theyre expensive Before you purchase one do some research on the seller Some arent reliable and may damage your vehicle Transponder Chips If your car is made within the last 20 years then it has a transponder inside of it Its the tiny piece of plastic in the head of your car key that houses an RFID Radio Frequency ID chip that has a unique code to your vehicle The chip sends out an lowlevel radio signal once it is activated by an electromagnetic field This signal is then taken up by an antenna attached to the ignition barrel This allows the vehicles computer system to confirm that the transponder chip that is in the key is the correct one for your particular car This is what stops doing hotwiring or altering the vehicles ignition system to get it started The chip inside the key also verifies that you are the legal owner of the vehicle This will help reduce car theft Regular transponder keys are designed like regular metal keys with a plastic top The chip is housed within the plastic part of the key and there are a few different types of cuts on the keys a cut a laser cut also called a sidewinder key or a Ford Tibbe key The circuit in the induction coil emits an electrical signal when the transponder is inserted into an ignition barrel The signal is taken up by the chip which then transmits a signal the vehicle If the cars computer detects this signal as the right one it will turn off the vehicle immobilizer and allow the engine to begin If the vehicle doesnt recognize the transponder as being the proper signal it wont start the engine and will notify you via flashing lights and an alarm This feature is designed to discourage people from tampering with the vehicle However its not an unbreakable security measure A skilled and skilled criminal could still bypass this system using a special device that blocks the signal It is evident that the transponder is a good option This is something that all car owners should consider if want to protect their investment and minimize the risk of theft Key Fobs In addition to locking and unlocking doors starting the car from a distance or making chirping sounds to help find a car in a parking space keys of today can also activate a heated steering wheel or roll down all windows with a single push These extra features can make it difficult to find your car keys Key fobs communicate with each with the car via radio frequencies that are transmitted via a small antenna located in the middle of the key The signal is encrypted to stop others from stealing or modifying the signal You can program a keyfob in different ways based on the make and model of your vehicle Certain models allow you to do it yourself However the majority of newer models require you to visit a professional locksmith or dealer for them program a replacement key fob or an alternative one When you press the button on a key fob the microchip transmits a signal to the receiver inside the car with which it is linked The receiver compares the information with the allowed signals that are stored in the key fob and then locks or opens the cars doors If the information doesnt match an chirping sound is heard and the car isnt allowed to operate When a car is connected with a particular fob it will only receive signals from that device Other fobs will not work with the car despite the fact that they look identical This helps to protect the integrity of the vehicles computer system and also to stop unauthorised key fobs from taking control of the vehicle The majority of car dealers who are newer will only work on cars with original fobs or genuine replacements sold by the manufacturer It is because the only place that has the knowledge to create an appropriate replacement fob is a dealers service department Certain aftermarket fobs typically those from older models that have less sophisticated systems can be programmed with out the need for a dealer