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How to Repair a Car Key Fob The key fob is jostled around a lot and its buttons can get stuck or broken If necessary you can give it a good cleaning and replace the battery The majority of cars have a coinstyle battery that you can buy from pharmacies or big box stores as well as home improvement retailers Certain models require programming equipment that is only available to dealers Dead Battery The car key fob is a tiny and convenient device that makes entering your car and starting it easier than ever What happens if you press the button a few times and nothing happens This is usually caused by an inactive or dying battery The battery can be easily replaced You can locate replacements at auto parts stores supermarkets and some home improvement stores However certain other features that the key fob provides may not function It could be due to an issue with the mechanical system or an electrical issue inside the car or even a malfunctioning deprogramming in the cars receiver In these instances its best to call an expert Fortunately a majority of manufacturers include a mechanical key slot inside the fob for use in case of an inoperative battery Most of the time the key slot is hidden behind a cover on the fob handle You can insert the physical key into the slot to unlock your doors and start your vehicle Make sure to insert the key fob back into the slot once youve started the car If you have a Ford with SYNC Connect you can start the car with the key fob The cupholder in the majority of Fords with SYNC Connect has a backup E blade This key is used to push the starter button if your key fob isnt able to start the vehicle To get the most benefit of this feature ensure that the car battery is fully charged and that you go through the owners manual to find out what the procedure is If youre having problems with your car after changing the battery in your key fob it could be time to call a locksmith or your dealership to have the battery replaced or the fob repaired In some cases a new battery can be used to program the key fob using your car at the dealership or select Interstate All Battery Center stores However this can only be done in the event that the circuit board and antennas have not been damaged Damaged Buttons The buttons on your car key fob are bound to experience an extensive amount of wear and wear and tear throughout their lives They are susceptible to being dropped and are often sat in purses and pockets This could cause internal components to get damaged or loose which could result in them not responding to your press A few easy steps can usually solve this issue but at times you may require taking your fob to a professional locksmith The most frequent reason for a car keyfob not working is that the batteries are dead These tiny coinshaped batteries are quite affordable and its not difficult to find them in hardware stores or largebox retailers You can also find videos on YouTube and in the owners manual of your device that explain how to replace the battery in your key fob Its also important to be aware that some key fobs require a particular procedure to enter the programming mode required to replace the battery In these instances youll need look up the owners manual andor an auto locksmith to make sure that youre following the correct procedure If you leave your key fob in extreme cold or hot temperatures can also cause it to stop functioning especially if the battery has died If this happens youll require contacting an automotive locksmith or a dealer to request a replacement fob If youre still unable to push the buttons on your key fob it may be because the contacts are worn out These contacts are rubberlike and coated with an electricityconducting film but they can start to wear out over time due to repeated use You can try to repair this by taking the key fob off and placing a piece of metallic tape over the worn out contacts It is important to know that some key fobs can be extremely difficult to open and cannot be opened with confidence without the right tools that are only available at a dealership If you attempt to open it with a screwdriver or another tool its possible to damage the circuit board inside and incur an expensive repair bill than you might have otherwise required Circuit Board Issues The circuit board could be the cause of your key fobs not working in the same way it used as well The circuit board is an electronic chip inside the case It transmits signals to the car telling it that you wish to lock the doors open the trunk or shut off the ignition If the circuit board is damaged the key fob will not be able to transmit these signals Repairing the damaged circuit board at home with a little technical knowhow Begin by removing the battery and taking the holder and rubber button assembly from the circuit board Use a cotton swab along with some rubbing alcohol to clean around the contacts and the plastic frame This should eliminate any rust that blocks the circuit board from sending signals Once youve reassembled the key fob ensure that its in programming mode Refer to the owners manual for instructions Many vehicle manufacturers have online videos that explain how to do it If youre not confident enough to tackle it yourself you can send your key fob to a locksmith who is specialized in the model of your vehicle Certain key fobs that are newer have a builtin receiver that enables you to open your trunk and lock the doors as well as switch on your ignition and start the engine from some distance In general they are more reliable and can work over a greater range If your newer key fob isnt working as far away as it did previously it could be due to a faulty antenna or some other internal issue If youre having trouble getting your key fob working The most likely cause is an inoperative battery Its inexpensive and easy to change However if the fobs buttons or circuit board has been damaged youll need have it professionally repaired and reset Most dealerships offer this service however you can find a service that specializes in the model of your car Forgotten Key If youve lost your car key fob it can be a nightmare You can turn your home upside down retracing your steps and looking everywhere including in bags drawers and under couches and even your cats bed Then keys repair ll discover it It is best to take preventative measures as a way to ensure that you dont lose your key fob If you are prone to forgetfulness or have a slight touch of ADD Create several copies and give these to family and friends so that you wont be in a state of panic and worry for 4 hours if you lose your key fob Many cars come with key fobs that allow you to lock and unlock doors and in some cases activate the alarm system or open the trunk Some of the more sophisticated models come with even more cool features such as the ability to call your cars location by pressing the button This feature isnt available on all models but if your car is one of the ones that can do it the Genesis GV60 or Hyundai Sonata for instance and youre a lucky person then youre in luck If you have a spare car key fob that has been programmed to your vehicle you may use it in the event you lose the original You can also talk to an automotive locksmith to have them create the new key fob which has was programmed to your specific vehicle Check with your dealer to see whether a replacement keyfob is available at a lower cost If you dont have spare keys the only method to get your car started is by calling an auto locksmith to come out and either cut a new key or replace the current key fob with blank Dealers can also do this however theyll need your car to be towed and a proof of ownership The good thing is that these services are affordable particularly when compared with buying a new key from your dealership that could cost anywhere from 200 to 250