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Car Remote Key Repair Modern remotes for cars are useful and convenient, but they can be frustrating when they stop functioning. Thankfully, there are some quick fixes that will usually get them working again. Replace the battery first. Most fobs are equipped with lithium coin cells, which are cheap and easily accessible. 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 stop working when the board is damaged. Damage to the receiver or transmitter will require an auto-locksmith who is a professional or a car dealer. The majority of remote key fobs powered by lithium ion coin battery, which has an extremely long shelf life. However, they will not last for a long time. Changing the batteries will likely solve your issue, 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 find that the buttons don't respond in any way, even if the batteries are in good condition. The buttons on your keyfob are subjected to a lot of bouncing and can break or become unresponsive over time. If this happens removal of the buttons, cleaning them, and reseating them will often resolve your issue. If your remote's buttons still not working, you might have to re-program it to work with the system in your car. This is usually done by turning the ignition key several times while the doors are closed. The procedure will differ based on your car's make and model however, you can find instructions online or ask a professional for help. If the key fob is made of plastic you can remove the cover by pulling it open. Be cautious not to damage the buttons or internal components. This can be done with a pair needle-nosed pliers that have longer tips. They are able to easily grasp small components. Lubricating pliers using putty, super glue or melted tallow can aid in grabbing delicate parts. It's also a good idea to have an automotive locksmith take care of this, since improper techniques could cause damage to the electronic components within. If you try to forcefully break the fob apart could damage the plastic, and it's also possible to accidentally cut off any buttons that are attached to it. Chips in the transponder are defective. Transponder chips can malfunction if you've previously been able to start the vehicle using the remote key but cannot do it again. This is because the key relies upon the small electronic component in order to communicate with the immobilizer system. It signals the system that your key is valid and that you should be in a position to start the engine. If the chip isn't able to transmit this signal it will cause the immobilizer to disable your vehicle. This issue is frequent in older cars However, it can occur in newer ones too. This is due to the transponder chip wears out over time. This component can be replaced by a car locksmith however, it can be costly. In some cases your chip could be dead. If this is the case, it will need to be replaced by a dealer. This is the most expensive but necessary way to get your car back on the road. Another possibility is that your key's chip is damaged. This means it can no longer communicate with the immobilizer. This could happen if the battery is replaced or if your key is physically damaged. A Mesa auto locksmith can solve this issue, but you may have to visit the dealership to have your key programmed. If you're having issues with your remote key, you must first try a backup. If this doesn't solve the problem, you should take apart the key fob and conduct an inspection. Make sure all buttons appear to be broken or loose. These parts see lots of use and may be lost over time. If they're loose, it's recommended to have them re-soldered by an experienced professional. This is often a way to make your key fob. This is especially true for keys that have been accidentally inserted into the wrong ignition lock cylinder. Damaged Battery If you've tried a fresh battery and the key fob doesn't work, there may be other issues. Fobs could be damaged by water or dropped or dropped or stepped on. Internal connections, such as those that connect to the battery terminals of the remote, could also be damaged or disconnected. You may need to reprogram your key fob if do not have a spare of the same type and model. remote key repair must be programmed to match the car to ensure that only you are able to unlock the car doors. This is an essential step to secure your vehicle and to prevent others from using your key fob to gain access to your car or cause electrical system malfunctions. Certain engine error codes, or even normal wear and tear can alter the program and stop your key fob from working. It is essential to have your key fob reset properly by a professional who has the right equipment. It's also possible that the problem is with the buttons, which can be a simpler solution than replacing the entire key fob. Key fobs typically have rubberized buttons that are jostled around all the time, and can break or become loose. 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 look at it, but be cautious. Some fobs aren't equipped with an easy release mechanism, and you may need a screwdriver or other tool to break them. Some fobs are sealed and cannot be opened without the use of specialized tools. You'll need to bring them to a dealer to have them professionally opened. If you have an extra key fob for the same model and manufacturer use of it to start the mode of programming for your car. Based on the model of your car this could mean closing and locking the doors, turning the lights and other electronics off and on and pressing a certain set of buttons in a certain order. Failing Buttons Mechanical damage could be to blame if your key fob's buttons aren't working or require you to press them very in a very forceful manner. The key fob being dropped on concrete or accidentally hitting one of the buttons with a sharp object can impact the way it performs. If this happens you'll need to remove the key fob and carefully see if any buttons appear to be damaged or are out of place. A locksmith can repair it for you if that's the case. Failure of buttons could be caused by dirt or crud trapped between the buttons. It is essential to clean your key fob regularly with a cotton swab soaked in alcohol. It is possible to clean the surface on the keys. You should also determine if the problem is related to your car lock or the key fob. If you don't have an extra key fob to test, consider trying the keys on another vehicle to see if they work also. If the key fob needs to be reprogrammed also depends on the condition of the battery. If your key fob is not able to function after replacing the batteries, it likely indicates that the battery's terminal contacts are damaged. Pressing the buttons on your key fob repeatedly while you're out of range or disconnecting your car battery can also deprogram an electronic key fob. If the key fob isn't working after replacing the battery, you should have it reprogrammed to the car. This will be dependent on the particular vehicle model, but generally, you'll need to manually lock and unlock the doors of your car and then insert the key fob into the ignition, rotate it to the accessory position, and push a button on the remote. If this works, the exterior and/or interior lights should flash. It is then possible to test your key fob to ensure that it is successfully programmed with the vehicle. In rare cases the key fob might not function due to a problem with the door locks.