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Car Remote Key Repair Modern remotes for cars are useful and convenient, but they can be frustrating when they stop working. Thankfully, there are some quick fixes that can usually bring them working again. Replace the battery first. The majority of fobs are powered with lithium coin cells. They are affordable and easy to locate. Broken Electronics The electronic circuit board inside your remote car key transmits and interprets signals to your vehicle. If the circuit board is damaged, the key fob will not perform as it should. Unlike battery failure, which is typically fairly simple for most drivers to fix at home damage to the receiver or transmitter of your remote key will require a professional locksmith or dealer for your car. The majority of remote key fobs powered by lithium ion coin batteries, which have an extended shelf life. However, they will not last for a long time. love it of the batteries is likely to solve your problem, especially when they've been in use for a long time. If you've been using your remote fob for a long time and you're surprised to discover that the buttons don't respond even though the batteries are in good condition. The buttons on your keyfob are exposed to a lot jostling and may break or become inactive with time. If this is the case taking them off and cleaning them before replacing them can often solve your problem. If your remote's buttons don't work, you may have to re-program it to match the system of your vehicle. This is typically done by turning the ignition key a few times while the doors are closed. This will depend on the make and model of your car, but you can find instructions online or seek professional help. If the key fob is made of a plastic exterior it is possible to remove the cover and pull it apart. But be careful not to damage the buttons or other internal components. This is best done with a pair needle-nosed pliers that have longer tips. They are able to easily grasp small components. Lubricating car key repair company with putty melted tallow or super glue can help them grasp delicate parts. This is something that an automotive locksmith could perform, since the wrong methods could damage the electronic components. The plastic could be damaged if you try to take the fob apart with force. It's also possible that the buttons connected to it could be ripped off accidentally if forcefully pry it apart. A defective transponder chip If you've managed to start your car using the remote key, but you're not able to do it the next time, it could indicate a problem with the transponder chip. This is because your key relies on this tiny electronic component to communicate with the immobilizer system. It sends 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 is unable to properly transmit this message, the immobilizer is disabled for your vehicle. This problem is more frequent in older cars, however it is also a problem in more modern vehicles. This is because the transponder chip may wear out over time. It is possible to hire a car locksmith replace this portion of your key, however this can be expensive. In certain cases the chip inside your key might be dead. If this is the case, it will need to be replaced by an authorized dealer. This is the most expensive but necessary option to get your vehicle back on the road. Another possibility is that the chip inside the key has become damaged, which means it no longer works properly with the immobilizer system. This could happen if the battery is changed or if the key has been physically damaged. A Mesa auto locksmith can resolve this issue, however you may have to visit the dealer to get your key programmed. If you're having issues with your remote key you must first attempt to backup your device. If this doesn't solve the issue, you should take apart your key fob and examine it visually. Verify that nothing on the buttons are loose or damaged. These parts see frequent use and can easily be moved around over time. It is recommended to have them welded in place by a professional if they are loose. This will often restore the functionality of your key fob. This is especially true for keys that were accidentally put in the wrong ignition lock. Damaged Battery If you've tried a fresh battery but the key fob is still unable to work, there could be other issues. Fobs can be damaged by water, dropping them or stepping on them, and internal connections, like those that connect the battery terminals inside the remote, may also be damaged or broken. It is possible to reset the key fob and this is something you can do yourself if you have a spare fob of the same model and make. Modern key fobs must be programmed to match the vehicle to ensure that only you can unlock the doors of your car. It's a necessary step to safeguard your car and prevent others from using your key fob to gain access your car or cause problems with its electrical system. Certain engine error codes or wear and tear from normal wear and tear could corrupt the programming and prevent your key fob from working. It is essential to get your key fob reprogrammed correctly by a professional who is equipped with the right equipment. It's possible that the issue is with the buttons, which can be a less complicated solution than replacing the entire key fob. Most key fobs feature rubberized buttons that are tossed around all the time and may break or loosen. If you're able to determine that the buttons aren't damaged you could try adjusting them manually. It's best to open up the key fob and take a look at it, but be cautious. Some key fobs do not have a simple release mechanism. You may need an instrument or screwdriver to remove them. Others are sealed and can't be opened at all without the use of specialized tools. You'll likely need to take it to a dealership to have it professionally opened. You can use a spare keyfob from the same model and make to start the programming mode of your vehicle. This may require you to close and lock the doors, switch on and off lights and electronics, and press a series of buttons in a sequence that is specific to your vehicle. Failing Buttons Mechanical damage could be the cause if your key fob's buttons do not function or require you to press them hard. Dropping the key fob onto concrete or accidentally hitting one of the buttons with a sharp object may impact the way it works. It is necessary to remove the key fob, then look at it to determine whether there are any buttons that look damaged. If that is the case, a locksmith could fix it. Dirt or crud can also cause buttons to fail. It is important to clean your key fob frequently using a cotton swab soaked in alcohol. It is possible to clean the surface on the keys. It is also important to determine if the issue is related to your car lock or the key fob. If you don't have a spare key fob to test, think about using the keys on a different vehicle to determine if they work also. The condition of the battery will determine if you need to change the programming of the key fob. If your key fob is not able to function after replacing the batteries, it likely means that the battery terminal contacts are damaged. Pressing the buttons on your key fob too often while out of range or disconnecting your car battery can also deprogram an electric key fob. If the key fob is still not functioning after replacing the battery, you should be able to reprogramme it with your car. It will depend on the particular model of vehicle however, generally, you'll need to manually lock and unlock the car's doors and then insert the key fob into the ignition, rotate it to the accessory position, and push the button on the remote. If this works the exterior and/or interior lights should light up. You can test the key fob to confirm that it has been successfully programmed. In rare instances keys can be inoperable if there's an issue with the door locks themselves.