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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. There are a few quick fixes to get them working again. First, try replacing the battery. The majority of fobs utilize lithium coin cells, which are inexpensive and easily accessible. Broken Electronics The electronic circuit board in the remote car key transmits and interprets signals to your vehicle. If the circuit board is damaged, the key fob won't function properly. Damage to the transmitter or receiver will require an auto-locksmith who is a professional or a car dealer. The majority of remote key fobs powered by a lithium ion coin batteries, which have a long shelf life. However they will not last forever. If you've been using the batteries for a while replacing them could solve your problem. If you've been using your remote fob for a long period of time you may be shocked to discover that the buttons aren't working at all, even when the batteries are new. The buttons on your keyfob are subjected to a lot of bouncing and may break or become unresponsive with time. In this case, removing and cleaning the buttons will usually fix the problem. If the buttons on your remote don't respond, you may need to reprogramme it to work with the car's system. This is typically done by turning the key in the ignition several times with the doors shut. The process will vary depending on the make and model however, you can find instructions online or contact a professional for assistance. If the key fob has an exterior made of plastic it is possible to remove the cover and pull it off. Be careful not to scratch the buttons or internal components. This can be done with needle-nosed pliers which have longer tips. They are able to grasp small components. Lubricating the pliers with super glue, melted tallow, or putty will help them hold delicate parts. This is something that locksmiths in the automotive industry can do, as incorrect methods could cause damage to the electronic components. If you try to forcefully break the fob off could cause damage to the plastic, and it's also possible to accidentally snap off the buttons that are attached to it. Faulty transponder chip Transponder chips could malfunction if you have previously had the ability to start your car with the remote key, but haven't been able to do it again. This is because the key relies on a small electronic component in order to communicate with the immobilizer system. It sends the signal to the system to notify it that your key is valid, and you'll be able to begin the 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 modern vehicles also. The transponder chip wears away over time. It is possible to hire a car locksmith replace this portion of your key, however this could be costly. In some cases the chip in your key might be dead. In this instance the dealer will have to replace it. 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 that means it no longer communicates properly with the immobilizer system. This could happen when the battery is changed or if your key is physically damaged. A Mesa auto locksmith can solve this issue, however you may need to visit the dealer to get your key programmed. If you are having problems with your remote key, you should first attempt to backup your device. If this doesn't solve the issue, disassemble your key fob to conduct a visual inspection. Verify that nothing on the buttons are loose or damaged. These components see frequent use and may be jostled loose over time. If car key repair company are loose it is a good idea to have them soldered back in place by a professional. This will often bring back the functionality of your key fob. This is particularly true for keys that are accidentally placed in the wrong ignition lock cylinder. Damaged Battery If the key fob still not working even after you have tried a new one, it could be due to a variety of other issues. Fobs may be damaged by dropping them or stepping over them, and the internal connections, such as those that connect the battery terminals within the remote, may also be damaged or disconnected. It's possible to change the programming of the key fob, and this may be something you can tackle yourself if you have a spare fob of the same model and brand. Modern key fobs must be programmed to match the vehicle to ensure that only you are able to unlock the car doors. This is a crucial step to secure your vehicle and prevent other people from using your key fob to gain access to your car or cause electrical system issues. Certain engine error codes, or wear and tear from normal wear and tear could corrupt the programming and stop your key fob from working. It is essential to have your key fob reset professionally by a professional who has the proper equipment. It's also possible that the problem is with the buttons, which can be a simpler solution than replacing the entire key fob. Often, key fobs have rubberized buttons that get jostled around all the time and can break or become loose. If you can see that the buttons aren't damaged, you can try adjusting them manually. It is best to open the key fob and take a look at it, but be careful. Some fobs don't have an easy release mechanism, so you may need a screwdriver or another tool to pry them apart. Some are sealed and cannot be opened without specialized tools, so you'll likely need to go to a dealership to have it professionally opened. You can use a spare keyfob from the same model and make to access the programming mode of your car. Depending on the car you drive this could mean closing and locking the doors, switching the lights and other electronics off and on, and pressing a specific set of buttons in a specific sequence. Failing Buttons If your key fob has buttons that don't work or require being pressed very hard to function, it could be because of mechanical damage. Dropping the key fob on concrete or accidentally hitting one of the buttons with a sharp object could impact the way it works. If this happens you'll need to remove the key fob and examine it carefully to determine if any of the buttons appear to be damaged or are out of the right place. If that is the case, a locksmith could fix it. Dirt or crud can also cause buttons to fail. Clean your key fob with the help of a cotton swab which has been soaked in alcohol. You may need to clean the surface on the keys. You should also determine if the issue lies with your car locks or the key fob. If you don't have a spare key, try the keys in another vehicle to see if the problem is solved. Whether or not the key fob should be reprogrammed is also dependent on the condition of its battery. If your key fob doesn't work after replacing the batteries the terminal contacts of the battery are likely damaged. You can also deprogram your electronic key fob by pressing the buttons too many times when you're out of range or disconnecting your car's battery. If the key fob is still not functioning after replacing the battery, you should have it reprogrammed by the car. This will be dependent on the particular model of vehicle 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 push the button on the remote. Usually the interior and exterior lights will light up if this has worked. You can retest the key fob to verify that it was successfully programmed. In rarer cases the key fob could be inoperable due to problems with the door locks.