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How to Program Keys For Cars Locksmiths or automotive specialists are typically the ones who reprogram keys for cars They can take your old working key and use a specific tool to program a new one for your car The process involves reprogramming the blank chip inside the replacement key to suit the current settings of your vehicle Some manufacturers make this easy while others require a dealer or locksmith SelfProgramming As car technology has evolved over the years the ignition keys have also evolved too The days of simple mechanical keys you could purchase from a hardware shop for less than 10 are gone The newer models have computers that have improved antitheft security reprogram car key require a transponderchipintegrated key to be programmed by a professional locksmith mechanic or dealer to function properly There are a few different types of car keys programming that can be done by locksmiths who are professionals Certain are complicated and require specialized tools These tools are not available to the general public and are used only by professionals This type of car key programming is referred to as EEPROM Programming and requires soldering electronic expertise and a lot of time Other forms of programming for car keys are much easier and can be performed by the average person They are typically accomplished by using the onboard diagnostics port which can be accessed with the keyfobprogramming device This procedure can be carried out by a professional locksmith with the help of an online guide or an owner manual The majority of locksmiths who are professionals can program a new or replacement car key fob fast and accurately This is the best option for a vehicle owner since they can provide a complete range of services They can also offer a competitive price and peace of mind that the new key will work properly Keep in mind that the majority of vehicles only accept one programmed car key If youre trying to save money it could be a better idea purchase a functioning spare key fob and have it programmed by an auto locksmith This way you can ensure that the new key has been programmed to your car and will function Youll have to pay the dealer for programming and replacement keys if you dont Key Programmers Modern cars require a keyprogramming procedure to initialize their vehicles systems and to start the car In some instances the key must be set up by the dealer or auto locksmith The key may not function properly or not start the car in any way The reason is because the new key has not been programmed to the cars system and this could be quite costly This is why its a great idea to have two keys that work for a modern automobile and have the replacement key programmed if necessary A keyprogrammer is a device that recodes the transponder chip into an entirely new key fob or mechanical key It is also able to copy the data of an existing key to make duplicates These devices are handheld units that connect to the cars OnBoard Diagnostics OBD port They are equipped with diagnostic software that allows them to communicate with computers They also have a bidirectional user interface to work with an immobilizer system There are a number of different kinds of keyprogrammers on the market and they come in all sizes and shapes Some are inexpensive while others can cost thousands of dollar Some are specifically designed for certain types of vehicles and they can even offer advanced diagnostics for the vehicles electronic systems If youre interested in programming the new key into your vehicle refer to the owners manual to learn how Certain manufacturers employ proprietary software that only allows the dealership to make new keys Other manufacturers make it easy for anyone to complete If you are 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 a lot Another option is to purchase a keyprogrammer online These are less expensive than going to the dealership however theyre not cheap Be sure to investigate the seller prior to purchasing one some are not reliable and could damage your car Transponder Chips If your car was manufactured in the past 20 years it is likely that it has a transponder inside of it This is the little plastic piece in the head of your car key that contains an RFID Radio Frequency ID chip with a unique code for your vehicle When it is activated by an electromagnetic field the chip emits a lowlevel signal The signal is taken up by an antenna attached to the ignition barrel This allows the computer in your vehicle system to confirm that the transponder chip that is in the key is the right one for the car you have This prevents the vehicle from being started by either hotwiring or by tampering The chip in the key also verifies that you are the legitimate owner of the vehicle This will help reduce the possibility of theft from your vehicle Transponder keys resemble regular metal keys but with a plastic cap The chip is located inside the plastic portion of the keys There are various cuts a standard cut a Laser cut also called a sidewinder or Ford Tibbe and the Ford Tibbe When the transponder key is inserted in the ignition barrel a circuit within of the induction coil will send out a signal The signal is taken up by the chip which then transmits a signal the vehicle If the computer inside the car detects the signal as valid it will turn off the vehicle immobilizer so that the engine can start If the car does not recognize the transponder signal as being the correct one it will keep the engine from running and will alert you by flashing its lights and sounding a siren This is designed to deter people from trying to alter the vehicle however its not a 100 security measure A skilled and committed thief might be able bypass this system by using a device that can detect the signal As you can see there are quite a few advantages to getting a transponder key All car owners should consider this in order to safeguard their investment and decrease the chance of theft Key Fobs In addition to locking and unlocking doors starting the car from a distance or making noises to aid in finding the car in a parking space Key fobs today can also turn on the heated steering wheel or open all windows with a single press These extra features can make it difficult for you to locate your car keys Key fobs communicate with each other and with the car through radio frequencies that are transmitted through an antenna in the middle of the key This communication is encrypted which helps to keep others from stealing and retransmitting the signal You can program a keyfob in various ways based on the model and brand of your car You can sometimes do this yourself but most newer automobiles require a dealer or professional locksmith to program a replacement or additional fob When you press the button on a key fob the microchip sends signals to the receiver in the vehicle that it is paired The receiver compares the information with the allowed signals stored in the key fob and then it opens or closes the cars door If the information doesnt match the fobs information the car wont be allowed to run After the car has been paired with a specific fob it will only accept signals from the device Other fobs wont work with the car even if they look similar This protects the integrity of the vehicles computer system and also to stop the use of unauthorized key fobs to gain control of the vehicle Most newer car dealers will only work on cars with original fobs or genuine replacements that are sold by the manufacturer The reason for this is that the only place with the experience to design an appropriate replacement fob is a dealers service department However some aftermarket fobs typically for older models that have less sophisticated systems can be programmed by the consumer without the need of dealers
