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Car Remote Key Repair

Modern car remotes are useful and convenient however, they can be a pain when they stop working. There are a few quick solutions to make them work again.

The first step is to replace the battery. Most fobs use lithium coin cells, which are affordable and readily available.

Broken Electronics

The electronic circuit board that is in your remote car key transmits and interprets signals for your vehicle. The key fob will stop working if this board is damaged. Contrary to battery failure, which is usually fairly simple for most drivers to repair key fob at home damage to the transmitter or receiver of your remote key will require a professional auto locksmith or your car dealer.

The majority of remote key fobs utilize lithium ion coin batteries, which have a reasonably long time-to-life, but won't last forever. If you've been using the batteries for a while replacing them could solve your issue. You may be surprised if you've used your remote for a while and the buttons don't respond in any way. This is the case even when the batteries are brand new. The buttons on your keyfob will be subjected to a lot of jostling and may break or become inactive with time. In this instance, removing and cleaning the buttons will usually fix the problem.

If your remote's buttons still aren't working, you might have to re-program it to match the system in your vehicle. This is usually done by turning the key in the ignition several times while the doors are shut. The process will vary depending on your car key repair company's model and make, but you should be able to find instructions online or ask an expert for assistance.

If the key fob is made of a plastic exterior it is possible to take off the cover and pry it off. Be careful not to damage the buttons or other internal components. This can be done with needle-nosed pliers which have longer tips. They are able to easily grasp small components. Lubricating pliers with 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, as improper techniques could damage the electronics inside. The plastic could be damaged when you attempt to remove the fob with force. It's also possible the buttons that are that are attached to it may be ripped off accidentally if forcefully pull it apart.

A defective transponder chip

Transponder chips could malfunction if you've previously successfully started the car using the remote key but haven't been able to do it again. This is because the key relies on the tiny electronic component to communicate with the immobilizer system. It transmits the signal to the system to inform it that your key is valid, and you should be able start your vehicle. If the chip doesn't correctly transmit this signal the immobilizer will shut down your vehicle.

This issue is frequent in older vehicles, but can also happen in newer ones also. The transponder chip wears away over time. This component can be replaced by a locksmith for cars, but it is expensive.

In certain situations your chip could be dead. If this is the scenario, the chip will need to be replaced by a dealer. This is the most expensive but necessary option to get your vehicle back on the road.

The other possibility is that the chip in your key has been damaged, which means it no is able to communicate with the immobilizer system. This could occur when the battery is replaced or when there is physical damage to the key. A Mesa car locksmith can sometimes repair this, however it is possible to go to the dealership for your key reprogrammed.

If you're having issues with your remote key you should first attempt to backup your device. If this doesn't resolve the problem, you should take apart the key fob and do a visual examination. Make sure all buttons appear to be broken or loose. These parts are often used and may become loose as time passes. If they're loose it is best to get them reattached by an expert. In many instances, this will return your key fob's functionality. This is particularly applicable to keys that were accidentally put into the wrong ignition lock cylinder.

Damaged Battery

If you've tried a fresh battery but the key fob is still unable to work, there could be other issues. Fobs are damaged by water, dropping them, or stepping on them, and internal connections, like the ones that connect the battery terminals in the remote, may also be damaged or broken. You may need to reprogram your key fob if you do not have a spare of the same type and model.

Modern key fobs need to be programmed to work with your vehicle, and ensure that only you can unlock the car's doors. This is a vital step to secure your vehicle and to prevent other people from using your key fob to gain access to your vehicle or cause electrical system problems. Some engine error codes, or even normal wear and tear, can corrupt the programming of your key fob. Professionals with the right equipment can reprogram your key fob correctly.

It's possible that the problem lies with the buttons and is an simpler solution than replacing the entire key fob. Key fobs usually come with rubberized buttons that could be damaged or loosen up over time. If you see that the buttons do not appear to be damaged, you may want to adjust them manually.

It is recommended to open the key fob and look at it, but be aware. Some key fobs do not have a simple release mechanism. You may require a small tool or screwdriver to pry them apart. Some are sealed and cannot be opened without special tools, so you'll likely have to bring it to a dealer to have it professionally opened. You can utilize a spare keyfob of the same model and brand to start the programming mode of your car. This could require you to close and lock the doors, switch on and off the lights and electronics, and use a set of buttons in a specific order specific to your car.

Failing Buttons

Mechanical damage may be the reason when the buttons on your key fob don't function or require you to press them in a very forceful manner. The key fob's functionality can be damaged by dropping it onto concrete or accidentally hitting the button with a sharp item. If this happens you'll need to disassemble the key fob and inspect it thoroughly to check whether any of the buttons appear to be broken or are out of place. If this is the case, a locksmith could repair it for you.

Dirt or crud can also cause buttons to fail. Clean your key fob with a cotton swab that has been soaked in alcohol. It is possible to clean the surface of the keys. You should also try to determine if the problem is related to the locks on your vehicle or the key fob itself. If you don't have an extra key, try the keys in another vehicle to determine 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 doesn't work after replacing the batteries, the terminal contacts of the battery may be damaged. You can also deprogram your electric key fob by pressing the buttons too many times when you are not in range or disconnecting the battery in your car.

If your key fob still doesn't work after replacing the battery you must have it reprogrammed for your car. This will be dependent on the specific model of vehicle and the type of key fob you have, but generally you'll need to manually lock and unlock the car key repair company's doors by inserting the key fob into the ignition, turn it to the accessory position, and then press the button on the remote. Usually the interior and exterior lights will flash when this is successful. You can retest the key fob in order to confirm that it has been successfully programmed. In rare instances the key fob may stop working if there is an issue with the door locks themselves.