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https://www.thekeylab.co.uk/carkeyrepair/

remote car key repairs are convenient and useful but they can be frustrating when they stop working There are a few easy fixes to make them work again The first step is to replace the battery The majority of fobs are powered with lithium coin cells These are cheap and easy to locate Broken Electronics Your car key remote has an electronic circuit board inside that transmits and interprets signals to your car The key fob will cease to function in the event that this board is damaged Contrary to battery failure which is usually fairly simple for most drivers to repair at home damage to the transmitter or receiver of your remote key will probably require a professional locksmith or your car dealer Most remote key fobs are powered by lithium ion coin batteries which have an extremely long shelf life However they will not last for a long time The change of the batteries is likely to solve the issue particularly those who have had them for a while If youve been using your remote fob for a while you might be surprised to discover that the buttons dont respond at all even when the batteries are new Since the buttons on your key fob are subject to lots of rubbing and rubbing they may break or become inactive over time In this instance removing and cleaning the buttons can solve the issue If the buttons on your remote arent working you might require reprogramming it to work with the cars system This is typically done by turning the ignition key several times with the doors closed This will depend on the make and model of your vehicle however you can find the instructions on the internet or ask a professional for assistance If the key fob is made of an exterior made of plastic it is possible to take off the cover and pry it apart However be careful not to scratch the buttons or other internal components The best tool for this is a pair of needlenose pliers with longer tips that can more easily grasp small pieces Lubricating the pliers using super glue melted tallow or putty will help them grip delicate components Its recommended to have an automotive locksmith do this as improper methods could cause damage to the electronic components within Trying to forcefully pry the fob apart can cause damage to the plastic and its possible to accidentally break any buttons that are connected to it Faulty Transponder Chip If youve been able start your car with the remote key but not again it could indicate an issue with the transponder chip This is because the key relies on the tiny electronic component to communicate with the immobilizer system It signals the system that your key is valid and you should be able to start the engine If the chip fails to properly transmit this message the immobilizer will disable your vehicle This issue is most common in older vehicles however it can happen in newer ones too This is because the transponder chip can wear out over time It is possible to get a locksmith for your car replace this portion of your key however it can be costly In certain situations the chip may be dead In this instance the dealer will have to replace it This will be the most expensive option but it is usually required to get your car back on the road Another possibility is that the keys chip has been damaged This means that it can not communicate with the immobilizer This can occur when the battery is replaced or if there is physical damage to the key A Mesa locksmith for cars can repair this however it is possible to visit the dealer in order to have your key reprogrammed If you are having problems with your remote key you should first attempt to backup your device If this doesnt resolve the problem you should disassemble your key fob and perform an inspection Verify that nothing on the button appears to be loose or broken These parts are often used and can become loose as time passes If they are loose its recommended to have them soldered back in place by a professional In a lot of instances this will return your key fobs functionality This is especially true for keys that were accidentally put into the wrong ignition lock cylinder Damaged Battery If the key fob is not working after youve tried a different one it could be due to other problems Fobs can be damaged by water dropping them or stepping over them and internal connections such as the ones that connect the battery terminals inside the remote could be damaged or disconnected Its possible to reset the key fob and it could be something you can accomplish by yourself if have a spare fob from the same model and manufacturer Modern key fobs should be programmed to match the vehicle and ensure that only you can unlock the cars doors This is a vital step to secure your vehicle and prevent other people from using your key fob to gain access to your vehicle or cause electrical system malfunctions Certain engine error codes or wear and tear from normal wear and tear could corrupt the programming and prevent your key fob from functioning It is essential to get your key fob reprogrammed professionally by a professional who has the right equipment Its also possible that the problem is with the buttons and this could be a simpler solution than replacing the entire key fob Most key fobs feature rubberized buttons that are jostled around constantly and may break or loosen If you are able to see that the buttons arent damaged you can try adjusting them manually Open the fob key to look at it but be cautious Certain key fobs dont have a simple release mechanism You might require a small tool or screwdriver to break them Some are sealed and cant be opened without specialized tools so youll likely need to take it to a dealership to have it opened professionally You can use a spare keyfob from the same model and brand to access the programming mode of your vehicle This may require you to close and lock the doors switch on and off lights as well as electronics and then press a series of buttons in a sequence specific to your car Failing Buttons If your key fob has buttons that do not function or require to be press very hard to perform it could be the result of mechanical damage Dropping the key fob onto concrete or accidentally hitting one of the buttons with a sharp object may affect how well it performs If this is the case youll need to take the key fob apart and inspect it thoroughly to see if any buttons appear to be broken or are out of the right place If this is the situation a locksmith will fix it Failure of buttons could also be the result of dirt or crud that is trapped between the buttons It is important to clean your keys regularly using the help of a cotton swab that has been soaked in alcohol It is possible to clean the surface of the keys You should also determine if the problem is with your car locks or the key fob If you dont own a spare key try using the keys of a different vehicle to see if the problem is solved Whether or not the key fob should be reprogrammed also depends on the condition of the battery If your key fob fails to operate after you replace the batteries it likely means that the battery terminal contacts are damaged Pressing the buttons on your key fob repeatedly while out of range or disconnecting your car battery could also cause the deprogramming of the electronic key fob If the key fob does not work after replacing the battery you must have it reprogrammed for your vehicle It will depend on the specific vehicle model however generally youll need to manually lock and unlock the doors of your car insert the key fob into the ignition rotate it to the accessory position and then push a button on the remote Usually the exterior and interior lights will flash if this method has worked You can test the key fob in order to confirm that it was successfully programmed In more rare cases keys can be inoperable if theres an issue with the door lock itself