Car Remote Key Repair
Modern remotes for cars are useful and convenient, however they can be frustrating when they stop working. There are some quick solutions to make them work again.
First, you should replace the battery. The majority of fobs are powered by lithium coin cells. They are affordable and easy to locate.
how to repair car key fob has an electronic circuit board inside that transmits and interprets signals to your car. The key fob will cease to function when the board is damaged. Damage to the transmitter or receiver will require an auto-locksmith professional or your car dealer.
The majority of remote key fobs are powered by lithium ion coin batteries, which have an extremely long shelf life. However they will not last for a long time. If you've used the batteries for a while replacing them could solve the issue. If you've been using your remote fob for a while and you're surprised to discover that the buttons aren't working even though the batteries are new. Since the buttons on your key fob get lots of rubbing and rubbing, they may break or become unresponsive over time. If this happens taking them off, cleaning them, and reseating them will often resolve the problem.
If the buttons on your remote aren't responding, you may require reprogramming it to work with the car's system. This is usually done by turning the ignition key several times while the doors are closed. The method will vary based on the model and make, but you should be able to find instructions online or consult an expert for assistance.
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. This is best done with a pair needle-nosed pliers that have longer tips. They are able to easily grasp small parts. Lubricating the pliers using super glue, melted tallow or putty can assist them to grasp delicate components. This is something an automotive locksmith can use, since improper methods could damage the electronics. Trying to forcefully pry the fob off could damage the plastic, and it's also possible to accidentally snap off any buttons that are connected to it.
A defective transponder chip
Transponder chips can malfunction if you have previously been able to start the car with the remote key but haven't been able to do it again. This is because your key relies upon this tiny electronic component to communicate with the immobilizer system. It signals the system that your key is legitimate and that you are capable of starting the engine. If the chip isn't able to transmit this signal the immobilizer will shut down your vehicle.

This problem is more frequent in older cars, but it is also a problem in newer vehicles. The transponder chip wears away over time. The chip can be repaired by a car locksmith however, it can be costly.
In certain cases, the chip in your key may be completely dead. In this instance the dealer will need to replace it. This is the most expensive option, however, it is often necessary in order to get your car back on the road.
Another possibility is that your key's chip has become corrupted. This means it can not communicate with the immobilizer. This could happen if the battery is changed or if your key is physically damaged. A Mesa auto locksmith can fix this issue, but you may need to visit the dealer to get your key programmed.
If you are having problems with your remote key you must first attempt to backup your device. If this doesn't resolve the issue, you can disassemble your key fob to conduct a visual inspection. Check that none of the buttons appear to be broken or damaged. These parts are used a lot and can loosen as time passes. If they are loose it is recommended to have them reattached by an expert. This is often a way to bring back the functionality of your key fob. This is especially the case for keys that were accidentally inserted into the wrong ignition lock cylinder.
Damaged Battery
If you've tried a new battery, but the key fob doesn't work, there could be other issues. Fobs can be damaged by dropping them, or stepping on them, and the internal connections, such as the ones that connect the battery terminals in the remote, may also be damaged or disconnected. You may need to reprogram your key fob if don't have a replacement similar kind and model.
Modern key fobs should be programmed to match your car and ensure that only you have the ability to unlock the car's doors. This is an essential step to safeguard your vehicle and prevent other people from using your key fob to gain access to your vehicle or cause electrical system problems. Certain engine error codes, or even normal wear-and-tear can corrupt the programming and stop your key fob from working. Professionals with the right equipment can reprogram your key fob properly.
It's also possible that the problem is with the buttons and this could be a less complicated solution than replacing the entire key fob. Most key fobs feature rubberized buttons that get jostled around constantly and could break or get loose. If you notice that the buttons do not appear to be damaged, you may be able to manually adjust them.
Open the key fob to inspect it, but be cautious. Some key fobs do not have a simple release mechanism. You may need a small tool or screwdriver to pry them apart. Some are sealed and can't be opened without special tools, so you'll likely have to go to a dealership to have it opened professionally. You can utilize a spare keyfob of the same model and make to start the programming mode of your car. Depending on the car you drive this could mean closing and locking the doors, switching the lights and electronic devices on and off, and pressing a specific set of buttons in a particular order.
Failing Buttons
If your key fob has buttons that do not function or require to be pressed very hard to function it could be the result of mechanical damage. The key fob's function could be affected by a fall on concrete or accidentally hitting an item by using a sharp object. It is necessary to remove the key fob and examine it to see whether there are any buttons that appear to be damaged. 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 using the help of a cotton swab which has been submerged in alcohol. You may have to scrub the surface of the keys. You should also determine if the issue lies related to your car lock or the key fob. If you don't have a spare key, you can try the keys in another vehicle to determine if it works.
The condition of the battery will also determine whether or not you have to reprogram the key fob. If your keyfob does not work after replacing the batteries the terminal contacts of the battery could be damaged. Pressing the buttons on your key fob too many times when you are out of range, or disconnecting your car battery could also cause the deprogramming of the electronic key fob.
If the key fob isn't working after replacing the battery you should have it reprogrammed to the car. This will be dependent on the specific model 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, turn it to the accessory position, and then push the button on the remote. Usually the interior and exterior lights will flash when this has worked. It is possible to test the key fob to confirm that it was successfully programmed. In rare instances the key fob may stop working if there is an issue with the door locks themselves.