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Car Remote Key Repair

Modern car remotes are useful and convenient, but can be frustrating when they stop functioning. There are fortunately, quick fixes that will usually get them working again.

First, you should replace the battery. Most fobs are powered by lithium coin cells. They are affordable and readily available.

repair car key has an internal electronic circuit board that transmits and interprets signals to your vehicle. If the board is damaged, the key fob won't function properly. key fob repair to the receiver or transmitter will require an auto-locksmith professional or your car dealer.

Most remote key fobs use 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, changing them will probably solve the issue. If you've been using your remote fob for a long time, you might be surprised to find that the buttons aren't working even though the batteries are in good condition. Because the buttons on your key fob are subject to frequent jolts and rubbing, they may fail or cease to function over time. If this is the case taking them off, cleaning them, and placing them back in place will usually resolve your problem.

If your remote's buttons still don't work, you may have to program it again to work with the system in your car. This is usually done by pressing the ignition key multiple times while the doors are shut. The method will vary based on the model and make however, you will be able to locate instructions online or ask a professional for help.

If the key fob is made of plastic you can remove the cover by prying it apart. Be careful not to damage the buttons or internal components. The best tool to use for this is a pair of needle-nose pliers with longer tips, which can better grasp small components. Lubricating the pliers with super glue, melted tallow or putty can assist them to grasp delicate components. This is something that an automotive locksmith can use, since improper methods could cause damage to the electronics. If you try to forcefully break the fob apart could break the plastic, and it's possible to accidentally cut off any buttons connected to it.

A defective transponder chip

If you've been able start your car using the remote key, but it's not working again, it could indicate a problem with the transponder chip. This is because your key relies on this small electronic component to communicate with the immobilizer system. It transmits a signal to the system that your key is valid and that you should be able to start the engine. If the chip does not properly transmit this message, the immobilizer will disable your vehicle.

This issue is more prevalent in older cars, however it is also a problem in more modern vehicles. The transponder chip wears down over time. It is possible to have a car locksmith replace this part of your key, however it can be costly.

In some instances the chip may be dead. In this instance the dealer will have to replace it. This is the most expensive but necessary way to get your vehicle back on the road.

The other possibility is that the chip in the key has become damaged that means it no longer communicates properly with the immobilizer system. This could happen if the battery is replaced or if the key is physically damaged. A Mesa locksmith in your car can fix this, but it might be necessary to visit a dealership for your key reprogrammed.

If you are having problems with your remote key you should first attempt to backup your device. If this doesn't fix the problem, you should take apart the key fob and conduct a visual examination. It is important to ensure that all buttons appear to be damaged or loose. These parts get frequent use and may be lost over time. If they are loose, it's a good idea to have them soldered back in place by an expert. This will often make your key fob. This is especially true for keys that were accidentally put into the wrong ignition lock cylinder.

Damaged Battery


If you've tried a brand new battery but the key fob doesn't work, there may be other issues. Fobs can be damaged by dropping them or stepping on them, and internal connections, such as the ones that connect the battery terminals inside the remote, may also be broken or disconnected. You may need to reprogram your key fob if you don't have a spare of the same model and type.

Modern key fobs need to be programmed to work with your vehicle and ensure that only you can unlock the car's doors. It's a must to safeguard your vehicle and to prevent other people from being able to use your key fob to gain access to your vehicle or cause issues with its electrical system. Certain engine error codes, or even normal wear and tear can alter the program and stop your key fob from working. Professionals with the right equipment can reprogramme your key fob properly.

It's possible that the problem is in the buttons that are a much easier fix than replacing the whole key fob. Key fobs typically have rubberized buttons which can be damaged or lose their elasticity over time. If you see that the buttons do not appear to be damaged, you may need to adjust them manually.

Open the key fob to inspect it, but take care. Certain fobs do not have an easy release mechanism, so you might need a small screwdriver or some other tool to break them. Some fobs are sealed, and are not openable without special tools. You'll have to take them to a dealer to get them professionally opened. You can use a spare keyfob from the same make and model to access the programming mode of your car. Depending on your car, this may involve closing and locking the doors, turning the lights and electronic devices on and off by pressing a particular set of buttons in a particular order.

Failing Buttons

If your key fob has buttons that do not work or need to be pressing very hard in order to perform it could be the result of mechanical damage. The functionality of the key fob could be affected by a fall on concrete or accidentally hitting the button by using a sharp object. If this happens you'll need to take the key fob apart and examine it carefully to see whether any buttons appear to be broken or out of the right place. If that is the case, a locksmith could fix it for you.

The failure of buttons can also be due to dirt or debris that has accumulated between the buttons. It is important to clean your key fob regularly with a cotton swab soaked in alcohol. It is possible to clean the surface on the keys. It is also important to determine if the issue is related to the locks on your vehicle or with the key fob itself. If you don't own a spare key, you can try the keys in a different vehicle to determine if it works.

Whether or not the key fob should be reprogrammed also depends on the condition of its battery. If your key fob doesn't function after replacing the batteries, the terminal contacts of the battery are likely damaged. Pressing the buttons on your key fob too often when you are out of range, or disconnecting your car battery could also deprogram the electronic key fob.

If the key fob is not working after replacing the battery, have it reprogrammed by your car. It will depend on your particular car model, but you'll generally have to lock and unlock the doors manually. Insert the key into the ignition, change it to accessory, and hit the remote that is wireless. Usually, the exterior and interior lights will flash if this is successful. You can then retest your key fob to ensure that it is successfully programmed to the vehicle. In rarer cases the key fob could stop working due to problems with the door lock.

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