Car Remote Key Repair
Modern car remotes are useful and convenient but they can be frustrating if they stop working. There are some quick fixes to make them work again.
Replace the battery first. Most fobs use lithium coin cells, which are affordable and easy to find.
Broken Electronics
Your car key remote has an electronic circuit board inside that transmits and interprets signals to your vehicle. The key fob won't function if this board is damaged. In contrast to battery failure, which is generally very simple for most drivers to fix at home damage to the receiver or transmitter of your remote key will require a professional auto locksmith or dealer for your car.
The majority of remote key fobs utilize lithium ion coin batteries which have a reasonably long shelf life but will not last for long. If you've used the batteries for a while, changing them will probably solve the issue. If you've been using your remote fob for a long period of time and you're surprised to find that the buttons aren't responding in any way, even if the batteries are in good condition. The buttons on your keyfob will be subjected to a lot of jostling and can break or become unresponsive over time. If this happens, removing the buttons and cleaning them before reseating them will often resolve your issue.
If the buttons on your remote aren't working, you might have to change the programming to match your car's system. This is typically done by turning the ignition key a few times while the doors are shut. The process will vary depending on the model and make, but you can find instructions online or consult a professional for assistance.
If the key fob is made of plastic, you can take off the cover by tearing it apart. Be cautious not to damage any buttons or internal components. The best tool to use for this is a pair of needle-nose pliers with longer tips that can more easily grasp small parts. Lubricating pliers using putty, super glue or melted tallow can aid in grabbing delicate parts. It's recommended to employ an automotive locksmith take care of this, since improper techniques can damage the electronic components inside. The plastic could be damaged in the event that you forcefully pry apart the fob. It is also possible that the buttons that are attached to it will be ripped off accidentally if forcefully pull it apart.
Faulty Transponder Chip
If you've been able start your car successfully using the remote key, but you're not able to do it ever again, it could be a sign of 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 a signal to the system to notify it that your key is valid and you'll be able to begin the vehicle. If the chip does not properly transmit this message, the immobilizer is disabled for your vehicle.
This issue is frequent in older vehicles however, it can happen in more modern models also. The transponder chip wears down over time. The chip can be replaced by a car locksmith however, it can be costly.
In certain cases, the chip in your key could be dead. In this instance, the dealer will have to replace it. This will be the most expensive option, but is often required to get your vehicle back on the road.
The other possibility is that the chip inside your key has become corrupted and it is unable to is able to communicate with the immobilizer system. This can happen if the battery is replaced or if the key has been physically damaged. A Mesa locksmith for cars can solve this issue, but it may be necessary to visit a dealership in order to have your key reprogrammed.
If you're having problems with your remote key, the first thing you need to consider is backup. If this doesn't resolve the issue, disassemble your key fob to perform a visual examination. You should make sure that none of the buttons appear to be broken or loose. key fob repairs see a lot of use and may be jostled loose over time. If they are loose, it's best to get them re-soldered by an experienced professional. In a lot of instances, this will return your key fob to full functionality. This is particularly applicable to keys that are accidentally placed in the wrong ignition lock cylinder.
Damaged Battery
If you've tried a fresh battery and the key fob doesn't function, there could be other issues. Fobs are damaged by water, dropping them, or stepping on them, and internal connections, such as the ones that connect the battery terminals inside the remote, may also be damaged or broken. You may need to reprogram your key fob if don't have a spare that is the same kind and model.
Modern key fobs need to be programmed to match the vehicle to ensure that only you are able to unlock the doors of your car. This is a vital step to protect your vehicle and stop other people from using your key fob to gain access to your vehicle or cause electrical system issues. Certain engine error codes or even normal wear-and-tear can corrupt the programming and prevent your key fob from working. Professionals equipped with the right tools can reprogram your key fob properly.
It's possible that the issue is with the buttons that are a much easier fix than replacing the entire key fob. Key fobs often feature rubberized buttons that can be damaged or loosen over time. If you are able to see that the buttons aren't damaged, you could try adjusting them manually.
Open the key fob to inspect it, but take care. Certain fobs do not have an easy release mechanism, and you might need a small screwdriver or another tool to pry them apart. Some fobs are sealed, and cannot be opened without specialized tools. You'll need to go to a dealer to get them professionally opened. If you have an extra key fob from the same model and make you want to use it, try using it to access your car's programming mode. Depending on the car you drive, this may involve closing and locking the doors, switching the lights and electronic devices on and off by pressing a particular set of buttons in a certain sequence.
Failing Buttons
Mechanical damage could be the cause if the buttons on your key fob do not function or require pressing them extremely hard. Dropping the key fob on concrete or accidentally hitting one of the buttons with a sharp object can impact the way it works. You'll have to dismantle the key fob, then look over it to determine if there are any buttons that appear to be damaged. A locksmith can fix it for you if this is the case.
Failing buttons can be caused by dirt or debris that has accumulated between the buttons. It is essential to clean your key fob regularly using a cotton swab soaked in alcohol. It may also be necessary to clean the surface of the keys. You should also try to determine if the problem is with your car's locks or the key fob itself. If you don't have a spare key fob to test, you might consider using the keys on a different vehicle to determine if they work also.
The condition of the battery will also determine whether or not you should change the programming of the key fob. If your key fob is not able to operate after you replace the batteries, it most likely indicates that the battery terminal contacts are damaged. You can also reset your electric key fob by pressing the buttons too frequently when you are not in range or disconnecting the battery in your car.
If the key fob still not working after replacing the battery, you should get it reprogrammed with the car. It will depend on your particular car model, but you'll typically need to lock and unlock the doors manually, insert the key into the ignition, change it to accessory, and press the wireless remote. If this is working then the interior and exterior lights should flash. key repairs is possible to test the key fob to verify that it was successfully programmed. In rare cases, the key fob may be inoperable due to problems with the door lock.