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Car Remote Key Repair Modern car remote keys are useful and convenient, however they can be a hassle when they stop functioning. There are a few quick fixes to get them working again. Replace Read Even more . The majority of fobs are powered with lithium coin cells. These are cheap and readily available. Broken Electronics The electronic circuit board in your car key remote transmits and interprets signals to your vehicle. The key fob will stop working in the event that this board is damaged. In contrast to battery failure, which is generally quite easy for most drivers to fix at home damage to the receiver or transmitter of your remote key will probably require a professional auto locksmith or your car dealer. Most remote key fobs are powered by a lithium-ion coin battery, which has an extended shelf life. However they won't last for long. Change the batteries could solve your issue, especially if you've had them for a while. You might be shocked if you've been using your remote for a while and the buttons don't respond in any way. This can happen even if the batteries are new. The buttons on your keyfob are exposed to a lot of bouncing and may break or become unresponsive over time. If this happens removal of the buttons and cleaning them prior to replacing them can often solve the issue. If the buttons on your remote don't respond, you may require reprogramming it to match the system of your car. This is usually done by turning the ignition key a few times while the doors are shut. The method will vary based on the model and make however, you should be able to find instructions online or ask an expert for assistance. If the key fob is made of plastic you can take off the cover by pulling it apart. Be careful not to damage any buttons or internal components. This is best done with a pair needle-nosed pliers that have longer tips. They are able to grasp small parts. Lubricating pliers with putty, super glue or melted tallow can aid in grabbing delicate components. This is something that an automotive locksmith could perform, since the wrong methods could cause damage to the electronics. The plastic could be damaged in the event that you take the fob apart with force. It's also possible the buttons that are that are attached to it may break off accidentally if you forcefully pull it apart. Faulty Transponder Chip Transponder chips could malfunction if you've previously been able to start the car using the remote key, but you are unable to do so again. This is because the key relies upon the tiny electronic component to communicate with the immobilizer system. It sends a signal to the system to inform it that your key is valid, and you'll be able start your vehicle. If the chip isn't able to transmit this signal, the immobilizer will disable your vehicle. This issue is frequent in older cars however, it can happen in modern vehicles too. This is due to the transponder chip wears out over time. This component can be replaced by a car locksmith however it is costly. In some instances the chip in your key might be dead. If this is the scenario, the chip will require replacement by a dealer. This is the most expensive option but is often required to get your vehicle back on the road. The other possibility is that the chip in your key has been damaged and it is unable to is able to communicate with the immobilizer system. This can happen if the battery is changed or if the key is physically damaged. A Mesa locksmith in your car can solve this issue, but it might be necessary to go to the dealership in order to have your key programmed again. If you're having issues with your remote key the first thing you need to try is a backup. If this does not solve the issue, take apart your key fob and examine it visually. Make sure there are no buttons that appear to be damaged or loose. These parts get lots of use and are easily jostled loose over time. If they're loose it's best to get them soldered back in place by an experienced professional. In many instances, this will restore your key fob's functionality. This is particularly the case for keys that have been accidentally put into the wrong ignition lock. Damaged Battery If the key fob is still not working even after you've tried a new one it could be due to other problems. Fobs may be damaged by water, or dropped or dropped on. Internal connections, like ones that connect to battery terminals of the remote, could be damaged or broken. It is possible to change the programming of the key fob, and it could be something you can do on your own if you have a spare fob from the same model and make. Modern key fobs need to be programmed to match the vehicle to ensure that only you are able to unlock the car's doors. It's a crucial step to safeguard your car and to prevent other people from being able to use your key fob to gain access your vehicle or cause issues with the electrical system. Certain engine error codes, or even normal wear and tear can cause problems with the programming of your key fob. It is crucial to have your key fob reprogrammed properly by a professional who has the proper equipment. It's possible that the issue lies with the buttons that are a much simpler fix than replacing the whole key fob. Most key fobs feature rubberized buttons that are tossed around constantly and can break or become loose. If you see that the buttons do not appear to be damaged, you might be able to manually adjust them. Open the key fob to inspect it, but take care. Certain key fobs don't have a simple release mechanism. You may require an instrument or screwdriver to break them. Certain fobs are sealed and cannot be opened without specialized tools. You'll need to go to a professional to have them professionally opened. If you have an extra key fob from the same model and brand you want to use it, try using it to start the programming mode of your car. This may require you to shut and lock the doors, turn on and off lights and electronics, and press 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 pressed very hard to work it could be because of mechanical damage. The key fob's functionality can be affected by a fall on concrete or accidentally hitting the button with a sharp object. If this is the case, you'll need to disassemble the key fob and inspect it thoroughly to determine if any of the buttons appear to be damaged or are out of place. A locksmith can fix it for you if this is the case. Failure of buttons could also be the result of dirt or debris that has accumulated between the buttons. It is essential to clean your key fob regularly with an alcohol-soaked cotton swab or a cotton swab. alcohol. It is possible to clean the surface of the keys. It is also important to determine if the problem is related to the locks on your vehicle or with the key fob itself. If you don't own a spare key, try the keys in a different vehicle to see if it works. The condition of the battery will determine whether or not you have to change the programming of the key fob. If your key fob fails to function after replacing the batteries, it most likely means that the battery terminal contacts are damaged. Pressing the buttons on your key fob repeatedly when you are out of range, or disconnecting your car battery could also cause the deprogramming of an electronic key fob. If the key fob not working after replacing the battery, get it reprogrammed with the car. This will be dependent on the particular type of vehicle and the type of key fob you have, but generally, you'll have to manually lock and unlock the doors of your car by inserting the key fob into the ignition, rotate it to the accessory position, and then press the button on the remote. Usually the exterior and interior lights will flash if this is successful. You can then retest your key fob to verify that it is successfully programmed with your vehicle. In rarer cases the key fob could not function due to a problem with the door locks.