Remote Key Fob Repairs You Can Do at Home
If your remote key fob stops working, you may be tempted to visit an establishment to have it reprogrammed. Try a few quick fixes at your home.
Start by replacing the battery. Hardware stores sell flat-watch-style batteries that are affordable and easy to locate. 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 easy to lock and unlock your vehicle. It works by using a radio transmitter that transmits codes to a receiver within your car. Key fob batteries generally last a long time, but they may die at any time. Check the LED light, or press one of the buttons to determine if it's dead. If the key fob won't respond, the battery has died and needs to be replaced.
It is quick and easy to replace the battery on your key fob. It's typically a matter of opening the fob, pulling out the old battery before inserting the new one. Fobs use tiny batteries, similar to those used in hearing aids or watches, that are available at all kinds of stores and home improvement stores. They're typically shaped like tiny coins 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 fob's own for a label.
Your key fob should now work normally. If it's not working it could be because of another issue with your car or the system that is causing it to not function properly. If this is the case, you will need roadside assistance.
You can purchase replacement keys through a dealer or online, depending on the model and make of your car. It's usually cheaper and easier to buy a new key fob instead of to repair a broken one.
Buttons Are Unresponsive
If you've been driving around for a while and notice that the keys' buttons are not functioning, it could be an issue with worn buttons or sensors. The majority of fobs have buttons made of rubber that can wear out over time, which could cause them to only work properly if they are pushed in a specific manner or with a lot of force. This is a common issue with a lot of fobs and can be easily solved by following a few DIY steps.
The fob transmits an unlocking signal to the car's receiver. If the receiver is damaged it may stop receiving the signal and the key won't operate to unlock or start your car. This can be fixed by having a mechanic look over the receiver to determine if there is damage. In many cases, this is free or a small fee dependent on the model of your car.
It's not a surprise that key fobs are commonly utilized and tossed around in pockets and purses. They can become finicky, and only work properly if pressed in a specific way. car keys repair is a simple fix for most fobs since the buttons can be strengthened and fixed quickly with some silicone and a 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 will need to do this multiple times in a row to get the button to activate. The next step is to rotate your key in and out of the ignition for a several times to reset the fob's connection to the car. Once the connection is restored, you can remove the ignition key and then unlock your car using the remote. Repeat the process as needed to make sure your fob is working again. If you are not able to repair the fob following this procedure it might need to be replaced 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 key fob's plastic keychain loop breaks off it will be separated from your keys and can no longer be used to lock or unlock your vehicle. The keychain loop can be easily replaced.
Key fobs can also malfunction 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 can resolve the problem, but sometimes an expert repair or replacement is required.
Key fob buttons may get worn out over time, leading to reduced functionality or unresponsiveness. This may require the purchase of a new case for your key fob or replacement of the button, however most of the time, the issue can be solved by changing the program. Sometimes signal interference from nearby electronic devices can cause interference between the key fob and the vehicle, leading to problems with locking or unlocking. This might require a diagnostic test performed at the dealership to identify and solve. This is typically the case with older electronic key fobs, which operate on infrared signals. They require a clear line-of-sight in order to function however modern microchip keys use the challenge-response method of authentication using radio frequency to connect with your vehicle.
Corrupted or lost pairing
Over time keys fob batteries deplete their charge, and if the battery has lost all of its power the remote won't respond to commands. This problem is usually resolved by replacing the battery, but it may also be necessary to re-program your remote.
Modern cars come with key fobs that allow for various functions. They can lower and raise the windows, activate the alarm as well as turn on the interior lights, and even start some vehicles. It is easy for car owners to make a mistake and use the wrong buttons. It is recommended to keep your owner's manual close when you are using your key fob, so that you can refer to the specific sections that address the various functions of your car.
A fob might malfunction because the remote signal is corrupted or has been lost. Certain of the latest key fobs utilize sophisticated encryption techniques to stop thieves from stealing the signals and creating remotes or key fobs that are not authorized which can unlock your vehicle. To reprogram the fob you will need to visit a dealer or auto locksmith.
Some automakers provide their own instructions for do-it-yourself key fob reprogramming. These procedures are often simple enough to be done at home. This method is not recommended for novices who don't have a lot of experience in electronics. This type of work should be left to experts.
Key fobs are subject to more wear and tear when they're frequently handled and used. The buttons on a key fob can get jostled around, and the case could 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 when your remote fails to work while you're out and about. Keep it near your bed at all times, so that you can press the panic button if you hear sounds at night.