Remote Key Fob Repairs You Can Do at Home
If your remote key fob stop working, you may be tempted to go to an establishment to get it reprogrammed. Try some quick fixes in your home.
Start by replacing a battery. Flat-watch-style batteries are affordable and easily found at hardware stores. Look over the key fob to find worn buttons or those that are out of the right place.
Dead Battery
The key fob, a small electronic device, allows you to lock and unlock your vehicle. It uses a radio transmitter which transmits codes to a receiver inside your car. The batteries in key fobs last for a long period of time, but they can end up dying at any time. Examine the LED light, or press one of the buttons to see whether the battery is dead. If the key fob does not respond then the battery is dead and needs to be replaced.
Changing the battery in the key fob is simple and quick. It's usually just a matter of opening the fob and taking out the old battery before putting in a new one. Batteries for fobs are small, similar to those found in hearing aids or watches. They can be found at home improvement stores and general stores. They're typically shaped like small coins with plus and minus symbol on the bottom. If you're not sure of the kind of battery your fob is using, check the owner's manual or look at the key fob itself for the label.
The fob you have been using for your key should work normally. If it doesn't then there could be a issue with your car or its system that is causing the fob to not work properly. If this is the situation you'll need assistance from a roadside service.
Based on the make and model of your vehicle, you may also be able to order replacement key fobs through the internet or from a dealership. Buying a new fob is the most efficient option, since it will save your time and money when compared to fixing the broken one by yourself.
Buttons aren't responding
It could be due to a worn button sensor if you've driven for a long period of time and notice that your keys aren't working. Most fobs feature rubberized buttons that wear out over time, which may cause them to not function correctly when they are pushed in a specific way or with extreme force. This is a problem that occurs with many fobs, and is easily fixed by following some simple DIY steps.
The fob sends an unlocking signal to the receiver inside the car. If the receiver is damaged, it will stop receiving the signal and will prevent the key from working to open or start the vehicle. The best option is to have a local mechanic inspect the receiver for damage. In many cases, this will be free or a small fee dependent on the model of your car.
It is not surprising that key fobs are frequently used and are often tossed into pockets and purses. They can be finicky and only function properly when pressed in a certain manner. car key repair is not difficult to fix most fobs, as the buttons are easily strengthened with silicone and a little bit of effort.
Press and hold the lock/unlock buttons on your keyfob until you hear the vehicle sound. This must be repeated several times to activate the button. Next, you will need to turn your key in and out of the ignition in your car several times more to reset the connection between the fob and your car. Once the connection is restored, you are able to remove the key from the ignition and then unlock your car using the remote. Repeat the process until your fob is functioning again. If you cannot fix the fob with this method, it might be necessary to replace it. If you have to replace it, make sure that the new key is programmed to work with your car make and model.
Keychain Loop Breaks
If the plastic loop of the key fob gets damaged it will not function to lock or unlock your vehicle. The keychain loop is easily replaced.

Key fobs may also fail due to moisture and water damage. The signs include a decreased range of operation, or no function at all. Drying the key fob and replacing the battery could solve the issue however sometimes a an expert repair or replacement is necessary.
Key fob buttons may become worn out over time, leading to less functionality or a lack of responsiveness. It is possible to replace the key fob's button or case however, reprogramming may solve this issue. Signal interference from electronic devices nearby could affect the connection between your key fob and your vehicle and cause problems with locking or unlocking. This might require a diagnostic test at the auto dealership to troubleshoot and fix. This is usually the case with older electronic key fobs that operate using infrared signals and require a clear line-of-sight in order to function however modern microchipped key fobs use radio frequency challenge-response authentication to connect with your vehicle.
Pairings that are lost or corrupted
Over time the batteries of keyfobs degrade. If the battery has lost a lot of its charge, the remote may no longer respond to commands. This issue is usually solved by replacing the battery but it may also be necessary to re-program the remote.
Modern cars come with key fobs that control many functions. They can lower and raise the windows, activate the alarm, switch on the interior lights and even start some vehicles. As a result, it can be easy for owners to press the wrong buttons by accident. It is a good idea to keep your owner's manual close when you are using your key fob so that you can refer to the specific sections that cover the various functions of your car.
Another reason that causes the fob to cease working is that the remote's signal has become damaged or lost. Certain of the latest key fobs use sophisticated signal encryption technologies to stop thieves from stealing the signals and creating unauthorized key fobs or remotes that allow you to unlock your car. You'll likely need to visit an auto locksmith or dealer to re-program your fob and restore its functionality.
Some automakers offer their own instructions for reprogramming key fobs. These procedures are often easy enough to do at home. However, this is not the best option for those who are not experienced with knowledge of electronics. It is recommended to leave this kind of work to professionals.
Key fobs undergo plenty of wear and tear, especially when they are used frequently and handled. The buttons on a fob can be pushed around and the case may crack or break. It is essential to keep a spare key fob with you at all times, since it can save you time and trouble when your remote fails to work while you're out and about. Keep it close to your bed at all times, so that you can use the panic button if you hear noises during the night.