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Car Remote Key Repair Modern remotes for cars are useful and convenient, however they can be frustrating when they stop functioning. Thankfully, there are some quick fixes that will usually get them back in operation. The first step is to replace the battery. The majority of fobs are powered with lithium coin cells. They are inexpensive and readily available. Broken Electronics Your car key remote has an internal electronic circuit board that transmits and interprets signals to your car. If this board is damaged the key fob won't work correctly. In contrast to battery failure, which is generally fairly simple for most drivers to fix at home damage to the transmitter or receiver of your remote key will require a professional auto locksmith or dealer for your car. The majority of remote key fobs utilize lithium ion coin batteries, which have a decent shelf life but will not last for long. If you've used the batteries for a long time replacing them is likely to solve your problem. You may be surprised when you have been using your remote for a long time and the buttons aren't responding in any way. This is true even when the batteries are brand new. The buttons on your keyfob are subjected to a lot jostling and may break or become inactive with time. If this is the case removal of the buttons, cleaning them, and placing them back in place will usually resolve the issue. If the buttons on your remote don't respond, you may have to change the programming to work with the car's system. This is typically accomplished by turning the ignition key several times with the doors shut. This will depend on the model and make of your vehicle, however you can find the instructions online or seek professional help. If the key fob is made of a plastic exterior it is possible to take off the cover and pry it off. Be cautious not to damage any buttons or internal components. This is best done using needle-nosed pliers that have longer tips. They are able to grasp small parts. Lubricating the pliers with super glue, melted tallow, or putty can assist them to grip delicate components. This is something an automotive locksmith could use, since improper methods could cause damage to the electronic components. The plastic could be damaged if you try to take the fob apart with force. It's also possible any buttons that are attached to it may snap off accidentally if you forcefully pry it apart. Faulty Transponder Chip If you've managed to start your car successfully using the remote key, but you're not able to do it ever again, it could be a sign of an issue with the transponder chip. This is because your key relies on this tiny electronic component to communicate with the immobilizer system. It transmits the signal to the system to let it know that your key is valid, and you should be able start your vehicle. If the chip does not correctly transmit this message the immobilizer is disabled for your vehicle. This problem is more frequent in older vehicles, but can also happen in newer ones too. This is because the transponder chip wears out over time. It is possible to have a car locksmith replace this part of your key, however this could be costly. In certain situations, your chip may be dead. In this situation the dealer will have to replace it. This is the most costly but necessary way to get your car back on the road. Another possibility is that the chip in your key has become corrupted that means it no longer works properly with the immobilizer system. This could happen if the battery is changed or if your key is physically damaged. A Mesa auto locksmith can solve this problem, but you may have to visit the dealer to have your key programmed. If you're having issues with your remote key, the first thing to try is backup. If this doesn't solve the issue, you should disassemble the key fob to examine it visually. Check that none of the buttons are loose or broken. These components are frequently used and can loosen over time. If they're loose, it's recommended to have them reattached by a professional. In many instances, this will restore your key fob's functionality. This is especially applicable to keys that are accidentally placed in the wrong ignition lock. Damaged Battery If you've tried a fresh battery but the key fob is still unable to function, there could be other issues. Fobs can be damaged by dropping them, or stepping on them, and internal connections, such as those that connect the battery terminals in the remote, could be broken or disconnected. It's possible that you need to reset the key fob and this may be something you can do yourself if you have a spare fob of the same model and make. Modern key fobs should be programmed to work with the vehicle to ensure that only you are able to unlock the car doors. This is a vital step to safeguard your vehicle and to prevent others from using your key fob to gain access to your car or cause electrical system problems. Certain engine error codes, or even normal wear and tear can alter the program and stop your key fob from functioning. It is crucial to have your key fob reprogrammed properly by a professional who is equipped with the appropriate equipment. key fob repair 's also possible that the problem is with the buttons themselves which could be a more straightforward solution than replacing the entire key fob. Often, key fobs have rubberized buttons that get jostled around all the time and could break or get loose. If you can see that the buttons aren't damaged you could try adjusting them manually. It is best to open the key fob and look at it, but be careful. Certain key fobs do not have a simple release mechanism. You may require a small tool or screwdriver to remove them. Others are sealed and can't be opened at all without specialized tools, so you'll likely have to go to a dealership to have it opened professionally. You can use a spare keyfob that is the same make and model to start the programming mode of your car. This could require you to close and lock the doors, turn on and off the lights and electronics, and use a set of buttons in a sequence that is specific to your vehicle. Failing Buttons Mechanical damage may be the reason when the buttons on your key fob aren't working or require you to press them forcefully. Dropping the key fob onto concrete or accidentally hitting one of the buttons with a sharp object may alter the way it works. It is necessary to remove the key fob and look at it to determine whether there are any buttons that look damaged. If that is the case, a locksmith could repair it for you. The accumulation of crud or dirt can cause buttons to fail. It is recommended to clean your keys fob using the help of a cotton swab which has been submerged in alcohol. It is also possible to clean the surface of the keys themselves. It is also important to determine if the issue lies with your car locks or the key fob. If you don't have an additional key fob to test, think about using the keys in a different vehicle to see if they function similarly. Whether or not the key fob should be reprogrammed is also dependent on the condition of its battery. If your key fob doesn't function after replacing the batteries the terminal contacts of the battery may be damaged. You can also deprogram your electronic key fob by pressing the buttons too often when you are not in range, or by disconnecting your car's battery. If your key fob doesn't work after replacing the battery, you must have it reprogrammed for your vehicle. This will be dependent on the vehicle model however, generally, you'll need to manually lock and unlock the doors of your car and then insert the key fob into the ignition, turn it to the accessory position, and then push a button on the remote. If this works then the interior and exterior lights will flash. It is possible to test the key fob in order to confirm that it has been successfully programmed. In rare cases the key fob might stop working due to problems with the door locks.