Remote Key Fob Repair: The Good, The Bad, And The Ugly
Remote Key Fob Repairs You Can Do at Home
You might be enticed, in the event that your remote key fob isn't working to bring it to a dealer to get it changed. Try a few quick fixes at your home.
Begin by replacing the battery. Hardware stores sell flat watch-style batteries that are affordable and easy to locate. Check the key fob for worn buttons or ones that are not in 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 within your car. Key fob batteries generally last for a long time, but they may end up dying at any time. Examine the LED light, or press one of the buttons to determine whether it's dead. If the key fob will not respond it means the battery is dead and needs to be replaced.
Change the battery on a key fob is easy and quick. It's usually a matter of opening the fob and pulling out the old battery before putting in a new one. The batteries for fobs are small, like those found in hearing aids or watches. They can be found in home improvement stores and general stores. They're usually shaped like small coins with a plus and minus symbol on the bottom. Refer to the owner's guide or the label on your key fob if you aren't sure which batteries your fob has.
After changing the battery your key fob will perform as expected. If it does not then there could be a issue with your vehicle or the system that is causing the fob to not function properly. If this is the situation, you'll have to contact roadside assistance to help with the issue.
Based on the make and model of your vehicle, you might be able to purchase replacement key fobs through the internet or from a dealership. A new key fob is the most efficient option, as it can save you time and money compared to having to fix a broken one by yourself.
Buttons Are Unresponsive
It could be due to a worn button sensor if you've been driving for a long period of time and notice that your keys don't work. Rubberized buttons on most fobs will wear down with time. This could cause them to work properly when you press them in a certain manner or with 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 may stop receiving the signal, and the key won't be able to open or start your car. This can be resolved by having a mechanic look over the receiver to look for damage. In many instances, this will be free or a small fee depending on the make of your car.
It's not surprising that key fobs are frequently used and jostled in pockets and purses. They can be finicky and only function if pressed in a specific manner. It is simple to fix most fobs, because the buttons are strengthened with silicone and a little bit of effort.
To get the buttons working again, first press and hold the lock and unlock buttons on your key fob until you hear a chime from your vehicle. You'll need to repeat this several times in a row to get the button to activate. Then, you'll need to switch your key into and out of the ignition of your car a few more times to reset the connection between the fob and the car. Once the connection has been restored, you can remove the key from the ignition and then unlock your car using the remote. Repeat the process as needed to get your fob working again. If you are unable to fix the fob with this procedure, it may be required to replace it. If you have to replace it, be sure that the new key is programmed to work with your vehicle make and model.
Keychain Loop Breaks
If the loop made of plastic on the key fob is damaged it will not be able to lock or unlock your vehicle. key fob repair can be easily replaced.
Damage from water or moisture could also cause key fobs to malfunction with symptomatic problems including a reduced range of operation or even no function at all. Drying the key fob and replacing the battery can solve the issue however sometimes a professional repair or replacement is required.
Over time, key fob buttons can wear out and become less responsive or ineffective. This may require a new key fob case or replacement of the button, however often the problem is solved by reprogramming. Occasionally signals from nearby electronic devices could interfere with the connection between the key fob and your vehicle, leading to problems with locking or unlocking. It may be necessary to perform a diagnostic test at the dealership to determine the cause of. This is often 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 microchip keys use challenge-response authentication over radio frequency to communicate with your vehicle.
Lost or Corrupted Pairing
Over time, key fob batteries lose their charge. If the battery has lost too much of its power the remote will no longer respond to commands. This problem is usually resolved by replacing the battery however it could also be necessary to re-program your remote.
Modern cars have key fobs that allow for a variety of functions. They can lower or raise windows, trigger alarms, turn on the interior lights, or even start some cars. It can be easy for owners to press the wrong buttons by accident. Keep the owner's guide close at hand when you use your keyfob so you can quickly refer to the sections that cover your car's features.
A fob could malfunction because the remote signal has been corrupted or has been lost. Some of the newer key fobs have sophisticated signal encryption technologies to keep thieves from intercepting the signals and making remotes or keys that aren't authorized that can unlock your car. You'll probably have to visit an auto locksmith or dealer in order to reprogram your fob and restore its function.
Certain automakers offer their own instructions available for do-it-yourself key fob reprogramming. These procedures are usually easy enough to do at home. This process is not recommended for those who do not have extensive experience in electronics. This type of work is best left to professionals.
Key fobs are subjected to wear and tear if they're used and handled frequently. The buttons on a key fob are susceptible to being pushed around, and the case may break or crack. Keep a spare fob with you at all time. This will save you time if your remote breaks down while you're out and about. It is recommended to keep it close to your bed during the night, as it will allow you to press the panic button in case you hear noises in the house during the night.