Remote Key Fob Repairs You Can Do at Home
If your remote key fob stop working, you may be tempted to visit a dealership to have it changed. Instead, you can try some simple fixes at home.
Start by replacing the battery. Flat-watch-style batteries are affordable and easy to find in hardware stores. You can then take a look at the fob that you have purchased and look for buttons that are worn out or out of the right place.
Dead Battery
The key fob, a tiny electronic device, makes it simple to lock and unlock your vehicle. It is a radio transmitter that transmits codes to a receiver in your car. Key fob batteries last for a lengthy period of time, but they can end up dying at any time. You can usually tell if the battery has been drained by looking at the LED light or trying to press one of the buttons. If the key fob won't respond, the battery has died and needs to be replaced.
It's quick and simple to change the battery in your key fob. It's as easy as opening the key fob, taking out the old battery, and replacing it with a brand new one. Fobs are powered by tiny batteries, similar to the ones found in hearing aids and watches, that are available in general stores and home improvement centers. They're typically shaped like an ordinary coin and are adorned with plus and minus symbols on the bottom. If you're not sure of the kind of battery your key fob uses, refer to the owner's manual, or look on the key fob itself for an identification label.
Your key fob should now work normally. However, if it doesn't, there may be another issue with your car or its system that's causing the fob not to perform as it should. If this is the case you'll require assistance from a roadside service.
Depending on the model and make of your vehicle, you may be able to purchase replacement fobs for your keys on the internet or from a dealer. It's usually cheaper and more convenient to purchase a new key fob instead of to fix a damaged one.
Buttons Aren't Responding
It could be a worn-out button sensor if you've driven for a long period of time and notice that your keys aren't working. The buttons made of rubber on a majority of fobs can wear out with time. This may cause them to only function correctly when pushed in a certain way or under extreme pressure. This is a common problem for many fobs, and can be easily solved with a few simple DIY steps.
The fob sends an unlocking signal to the car's receiver. If the receiver is damaged, it will not receive the signal, and stop the key from working to open or start the vehicle. The best option is to have your local mechanic check out the receiver for damage. In most instances, this will be free or for a small cost depending on the make of your car.
It is not surprising that key fobs are frequently used and jostled in pockets and purses. They can become a bit finicky and only function properly when pressed in a certain way. This is an easy fix for the majority of fobs, as the buttons can be strengthened and fixed very quickly with some silicone and a bit of work.
To enable the buttons again, press and hold the locks and unlock buttons on your key fob until you hear a chime in your vehicle. This will need to be done several times to activate the button. Then, you need to cycle your key in and out of the ignition a few times to reset the fob's connection to your car. Once the connection is restored, you can unlock the key and you will be able to unlock your vehicle with the remote. Repeat the process until the fob is functioning again. If you are unable to fix the fob by following this process, it may require replacement completely. If you decide to replace the fob, be sure it's programmed for your car's model and make.
Keychain Loop Breaks
If the loop made of plastic on the key fob gets damaged it won't function to lock or unlock your vehicle. Replacing key fob repair service is an easy solution.

Damage from water or moisture could also cause key fobs to malfunction with symptoms that include a shortened range of operation or no function at any time. The problem can be resolved by replacing the battery and drying the key fob, however in certain cases, professional repair or replacement may be required.
Over time the buttons on key fobs can wear out and become less responsive or ineffective. It could be necessary to replace the key fob's button or case however, reprogramming may resolve this problem. Occasionally, signal interference from nearby electronic devices may cause interference between the key fob and your vehicle which can cause problems with locking or unlocking. It could be necessary to conduct a diagnostic test at the dealership to troubleshoot. This is usually the case with older electric key fobs, which operate on infrared signals. They require a clear line-of-sight in order to function, but most modern microchip keys use challenge-response authentication over radio frequency to connect with your vehicle.
Corrupted or lost pairing
Over time, key fob batteries lose their charge, and if the battery has lost too much of its power the remote will not respond to commands. Replacing the battery will usually solve the issue, however you may also need to have the remote reprogrammed.
Modern cars have key fobs that control various functions. They can lower and raise windows, turn off the alarm, turn on the interior lights, and even start some vehicles. It is easy for car owners to use the wrong buttons. It is recommended to keep your owner's manual nearby when you are using your key fob, to be able to refer to the specific sections that deal with the various features of your car.
Another common reason for a fob to stop working is that the signal has become damaged or lost. Certain of the most recent key fobs employ sophisticated signal encryption technology to prevent thieves from intercepting signals and creating unauthorised key fobs or remotes that allow you to unlock your car. You will probably need to visit an auto locksmith or dealer in order to reprogram your fob and restore its function.
Some automakers offer their own instructions for reprogramming key fobs. Most of the time, these procedures are simple enough to do at home. This method is not recommended for novices who do not have a lot of experience with electronics. This type of work is best left to experts.
Key fobs receive lots of wear and tear, particularly when they are often used and handled. The buttons on a fob are susceptible to being pushed around, and the case itself may crack or break. It is important to keep an extra key fob on you at all times as this can save you time and trouble in the event that your remote ceases to function when you are out and about. Keep it close to your bed at all times, so you can press the panic button if you hear sounds at night.