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What is Car Keys Programming Modern vehicles use a special computer chip inside the key fob to communicate with the vehicle The key and computer must be programmed so that they can communicate with each other Depending on the manufacturer of the vehicle the procedure can be completed by a locksmith or the dealership The procedure is a bit different however it is always simple What is key in reprogramming It is recommended to have them reprogrammed by a professional if your car keys arent working due to of an unintentional or damaged key fob The process isnt easy and potentially dangerous if its not done correctly There are various steps to consider dependent on the type of vehicle This is why many people prefer having this service performed by a seasoned auto locksmith rather than trying to do it themselves Reprogramming is an easy process for most cars The expert will begin by taking a look at the make and model of the car to determine which blank key fob and tools will be needed The professional will then program the new chip or clone it using specialized equipment Theyll then test the key and ensure that it works properly Certain vehicles require a programer advanced that only a few car experts have access to This is a costly option that requires a significant amount of training and time to master However if you have an experienced and trusted auto locksmith with the appropriate equipment they can complete this process quickly and efficiently for you Some vehicles also have special programming procedures for EEPROMs that have to be handled by a professional These procedures can take up to several hours and are difficult to follow These methods can be dangerous and can damage the circuit board of your cars antitheft system Youll need a guide for your vehicle if you need to change the programming of your keys Some guides will work with most models but they may not work with all models Most of these guides warn against DIY methods because they can damage the data stored in your vehicles security module In some cases the manufacturer may permit their dealers to change your keys They will require an encrypted connection to the factory computer which stores this information This will stop others from accessing your vehicle if they were to gain access to your original key How do I program a key The process of reprogramming a car key is to insert a blank chip into the key and programming it to be compatible with your vehicles current settings You can request an alternative from your vehicle manufacturer but it will take an extended time In the meantime you wont be able to move around easily Car locksmiths can assist It is possible depending on the model of car you own to reprogram your key yourself using software that you can buy online However these pieces of software do not support every model or make and can be a bit difficult to use programming car key is better to let a professional program your key because they have the proper tools and know how to do it To do this youll need blank keys that are compatible with your vehicles model and make It is possible to purchase keys online at a lower price but you have to ensure that they are not blank prior to purchasing them You may also visit a locksmith however they are more likely to charge more because they will need to purchase their own software and advanced key programming tools to complete the task for you These advanced car key programming devices are costly and only accessible to professionals who have the appropriate license They also have a token system that allows only one program per day or hour This means that if you attempt to program a key again and again its likely that the code in the car will corrupt It is therefore recommended to let an experienced auto locksmith do the key reprogramming for you They will have a better understanding of the software security systems and other aspects involved This can reduce the possibility of errors or corruptions Plus theyll have the latest tools and software for this which will make it more secure and efficient What are the prerequisites to program a key Modern cars require keys with special chips that communicate with cars systems These chips must be programmed to be compatible with the specific car you own which makes it impossible to use any key fob that is compatible with your car even if it is duplicate This makes it more difficult to steal your car it also means that you cannot simply replace the broken key fob with a brand new one and expect the old one to work This is why the majority of people must contact an auto locksmith in order to program the new key for their car although it is possible to do it yourself in certain instances To accomplish this youll require two car keys that are working Once you have them you can sit in the drivers seat and turn on your cars ignition Then you can insert the new key into the ignition and turn it on to start your vehicle This will connect the new key to your system and make it a replacement that is functional for the lost one This procedure can differ by manufacturer so you should consult the instructions included with your key or search for your specific yearmakemodel online to get the exact steps Consider buying a key shell instead of a key head if you want to save on key programming costs The shell is the plastic piece that houses the key blade so you can usually find them for less at hardware or auto parts stores Youll still need to transfer the internals the chip and circuit board from the previous keyhead to the new one A professional will save you time by doing this for you but keep in mind that it will cost more than just a regular spare key A professional will need an advanced programmer that can cost thousands of dollar to connect to the computer inside your car You may be able to buy a cheaper version online however this will likely not work for your car Reprogramming keys can be a bit complicated and certain cars are more challenging to do than others Some models can be programmed directly on the car using an OBD2 Reader whereas others require a specific tool known as an EEPROM Reader Some of these tools are only sold through dealers and are costly You should leave this to professionals How long before the key is programmed Its dependent on the type of car you have and whether it comes with special antitheft features Many cars come with security features that prevent the key from working if its not programmed to the vehicle programming car key is to protect against theft and requires an experienced car locksmith for each particular model The key must be able to communicate with the computer onboard to unlock the doors and begin the engine A professional auto locksmith can determine this quickly Certain brands of cars can be difficult to program even for a skilled professional The process could take hours or days for these models The process requires EEPROM programming procedures which most locksmiths dont have Cars may also come with various other features that require a particular programming for the vehicle to function correctly This could include a remote starter automatic transmission or power windows In these instances a professional auto locksmith can assist if you have lost or damaged your keys Before determining the precise tools required professionals will require the make and model number of the vehicle They will also require a blank key compatible with their vehicle Once they have these two items they can program the transponder chip or key fob and also clone the key if needed Once all the work is completed then they will test the key to confirm its functioning The dashboard security light will remain in place until the key is programmed correctly This is to alert the owner that the key isnt functioning properly and must be reprogrammed by an expert It is crucial to have a spare key in the event that you lose or damage yours It can be expensive and timeconsuming to program a broken key A locksmith on autos can complete the job more efficiently and at only a fraction of the cost