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Car Remote Key Repair Modern remotes for cars are useful and convenient, however they can be frustrating when they stop working. There are some quick solutions to make them work again. Replace the battery first. Most fobs use lithium coin cells, which are inexpensive and easy to find. Broken Electronics The remote car key you have an internal electronic circuit board that transmits and interprets signals to your car. The key fob will cease to function if this board is damaged. Damage to the transmitter or receiver will require an auto-locksmith professional or your dealer in your car. Most remote key fobs are powered by a lithium-ion coin battery, which has an extended shelf life. However they will not last for long. If you've used the batteries for a long time, changing them will probably solve the issue. You might be shocked if you have been using your remote for a long time and the buttons don't respond at all. This is the case even when the batteries are brand new. The buttons on your keyfob are subjected to a lot of bouncing and may break or become unresponsive with time. In this instance, removing and cleaning the buttons will usually fix the problem. If the buttons on your remote still don't respond, you may require reprogramming it to work with the car's system. This is typically accomplished by pressing the ignition key multiple times while the doors are closed. The procedure will differ based on the model and make however, you will be able to locate instructions online or consult a professional for assistance. If the key fob is made of plastic, you can remove the cover by pulling it open. However, be careful not to damage buttons or other internal components. This is best done using needle-nosed pliers that have longer tips. They are able to grasp small parts. Lubricating the pliers using super glue, melted tallow, or putty can help them hold delicate parts. It's recommended to employ an automotive locksmith take care of this, as improper techniques could damage the electronic components inside. The plastic may break in the event that you remove the fob with force. It is also possible that any buttons attached to it will snap off accidentally if you try to forcefully break it. Faulty Transponder Chip Transponder chips may malfunction if you've previously been able to start the vehicle using the remote key, but you cannot do it again. This is because your key relies on this small electronic component to communicate with the immobilizer system. car key fob repairs sends the signal to the system to notify it that your key is in good condition, and you'll be able start your vehicle. If the chip doesn't correctly transmit this signal it will cause the immobilizer to disable your vehicle. This issue is common in older vehicles, but can also happen in more modern models too. The transponder chip wears down over time. This component can be repaired by a car locksmith however, it can be costly. In some instances, your chip may be dead. If this is the situation, it's going to require replacement by a dealer. This is the most expensive but necessary option to get your car back on the road. Another possibility is that the key's chip is damaged. This means that it can no longer communicate with the immobilizer. This could happen when the battery is replaced or if the key has been physically damaged. A Mesa locksmith in your car can fix this, but it might be necessary to visit a dealership for your key programmed once more. If you're having issues with your remote key the first thing to do is to create a backup. If this doesn't resolve the issue, you should take apart your key fob and perform a visual examination. Verify that nothing on the buttons appear to be broken or damaged. These components see lots of use and can easily be moved around over time. If they are loose it is recommended to have them re-soldered by an experienced professional. In many cases, this will restore your key fob's functionality. This is particularly applicable to keys that were accidentally placed in the wrong ignition lock cylinder. Damaged Battery If the key fob is still not working after you've tried a new one it could be due to other problems. Fobs are damaged by dropping them, or stepping on them, and the internal connections, like those that connect the battery terminals within the remote, may be damaged or disconnected. It is possible to reprogramme your key fob in case you do not have a spare that is the same kind and model. Modern key fobs need to be programmed to match your vehicle, and ensure that only you are able to open the doors of your car. 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 program and stop your key fob from working. Professionals equipped with the right tools can reprogramme your key fob properly. It's possible that the issue lies with the buttons and is an more straightforward fix than replacing the entire key fob. Key fobs often have rubberized buttons which can be damaged or loosen up over time. If you can see that the buttons aren't damaged, you might try manually adjusting them. Open the fob that you are using to examine it, but be careful. Some fobs aren't equipped with an easy release mechanism, and you may require a small screwdriver or some other device to open them. Some are sealed and cannot be opened at all without specialized tools, so you'll likely have to go to a dealership to have it opened professionally. If you have a spare key fob of the same model and manufacturer, try using it to start your car's programming mode. It may require you to shut and lock the doors, turn on and off the lights and electronics, and use a set of buttons in an order that is specific to your vehicle. Failing Buttons If your key fob has buttons that do not function or require to be press very hard to perform it could be because of mechanical damage. The key fob's functionality can be affected by a fall on concrete or accidentally hitting an item with a sharp item. If this is the case, you'll need to remove the key fob and examine it carefully to determine whether any of the buttons appear to be damaged or out of their place. If this is the case, a locksmith can repair it for you. car key fob repairs of buttons could be caused by dirt or crud trapped between the buttons. Clean your key fob with the help of a cotton swab which has been immersed in alcohol. You may need to clean the surface of the keys. It is also important to determine if the problem is with the locks of your car or with the key fob itself. If you don't have an additional key fob to test, you might consider using the keys on a different vehicle to see if they work similarly. The condition of the battery will also determine whether or not you have to change the programming of the key fob. If your key fob is not able to function after replacing the batteries, it probably indicates that the battery terminal contacts are damaged. Pressing the buttons on your key fob too many times while out of range or disconnecting your car battery could also deprogram an electronic key fob. If the key fob not working after replacing the battery, you should get it reprogrammed with your car. This will be dependent on the particular type of vehicle, but generally, you'll have to manually lock and unlock the doors of your car, insert the key fob into the ignition, rotate it to the accessory position, and push the button on the remote. Usually the exterior and interior lights will light up if this is successful. You can retest the key fob to verify that it was successfully programmed. In more rare cases keys can be inoperable if there's an issue with the door locks themselves.