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Remote Key Fob Repairs You Can Do at Home

You may be tempted, if your remote key fob doesn't working and you are unable to use it, to bring it to a dealer to get it changed. Try some quick fixes in your home.

Begin by replacing the battery. Flat watch-style batteries are inexpensive and easy to find at hardware stores. Look over the key fob to find worn buttons or those that are out of place.

Dead Battery

The key fob is a small electronic device that allows you to lock or unlock your car. It uses an radio transmitter with a short range to send distinct codes to the receiver in your vehicle. Key fob batteries generally 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 determine whether the battery is dead. If the key fob will not respond, then the battery is dead and needs to be replaced.

The process of replacing the battery in the key fob is simple and quick. It's as easy as opening the key fob, then removing the old battery, and replacing it with a fresh one. Batteries for fobs are small, similar to those found in watches or hearing aids. They can be found in home improvement stores as well as general stores. They're typically shaped as a small coin and have plus and minus symbols on the bottom. If you're unsure of the kind of battery your fob uses, refer to your owner's manual or check the fob's own for the label.

Your key fob should now work normal. However, if it doesn't, there may be another problem with your car or its system that is causing the fob not to function properly. If this is the situation, you'll need to contact roadside assistance to resolve the issue.

Based on the make and model of your vehicle, you may be able to buy replacement key fobs on the internet or from a dealer. It's usually cheaper and less expensive to purchase a new key fob instead of to fix a damaged one.

Buttons Are Unresponsive

If you've been driving for a while and you notice that the buttons on your keys aren't functioning, it could be an issue with worn-out sensor for the button. The buttons that are made of rubber on most fobs wear out over time. This may cause them to function properly when you press them in a certain manner or with extreme pressure. This is a common issue for many fobs, and can be repaired by following a few simple DIY steps.

The fob sends an unlocking signal to the car's receiver. If the receiver is damaged, it can stop receiving the signal, and stop the key from working to unlock or nearby start the vehicle. The best way to resolve this is to have your local mechanic check out the receiver for damage. This service is often free or costs only a small amount depending on the car's model.

The key fobs that are used daily get many uses and are often tossed around in pockets and purses, so it is not a surprise that they sometimes be finicky and function properly if they are pressed a certain way. It is not difficult to fix most fobs, because the buttons are strengthened with silicone and a bit of effort.

To get the buttons to work again, first press and hold the locks and unlock buttons on your key fob until you hear a chime from your vehicle. This must be done several times to activate the button. Then, you need to cycle your key in and out of the ignition for a few times to reset the fob's connection with the car. Once the connection has been restored, you are able to remove the ignition key and unlock your car with the remote. Repeat the process as necessary to ensure that your fob is functioning again. If you are unable to fix the fob using this procedure, it may be necessary to replace it. If you decide to replace the fob, you must make sure that it is programmed for your vehicle's model and make.

Keychain Loop Breaks

If the key fob's keychain loop is damaged, it can break off from your keys and can no longer be used to lock or unlock your car. The keychain loop is easily replaced.

Moisture and water damage might also cause key fobs to fail, with symptoms that include a diminished range of operation or even no function at any time. The problem can be resolved by replacing the battery and drying the key fob, but in some instances, professional repair or replacement may be required.

Key fob buttons might wear out over time, leading to reduced functionality or unresponsiveness. This could require the purchase of a new case for your key fob or button replacement, but usually, the issue can be solved by changing the programming. Sometimes signal interference from nearby electronic devices can cause interference between the key fob and your car, leading to problems with locking or unlocking. It could be necessary to perform a diagnostic test at the dealership in order to resolve the issue. This is typically the case with older electronic keys that use infrared signals for operation and require an optical line of sight. The majority of modern microchip keys communicate with your car via challenge-response authorization over radio frequency.

Corrupted or Lost Pairing

Over time the batteries of key fobs lose their charge, and if the battery has lost all of its power, the remote car key repair will no longer respond to commands. This issue is usually solved by replacing the battery however it could also be necessary to re-program the remote.

The key fobs in modern vehicles can be used to control a variety of functions. They can lower and raise the windows, activate the alarm as well as turn on the interior lighting and even start some vehicles. It is common for owners of vehicles to accidentally use the wrong buttons. It is a good idea to keep your owner's manual nearby when you use your key fob, to be able to refer to the specific sections that address the various features of your car.

Another common reason for a fob's malfunctioning is that the signal has been damaged or lost. Some of the more recent key fobs employ sophisticated technology for encryption of signals to stop thieves from stealing signals and creating unauthorized remotes or key fobs that can unlock a car. To reprogram the fob, you'll need to go to an auto locksmith or dealer.

Certain automakers offer their own instructions to do-it-yourself key fob programming. These procedures are usually simple enough to perform at home. This process is not recommended for beginners who do not have extensive knowledge of electronics. This type of work is best left to professionals.

Key fobs receive a lot of wear and tear, particularly when they are used frequently and handled. The buttons on a fob can get jostled around, and the case may crack or break. Keep a spare fob on your person at all times. This will save you time should your remote break down when you're out and about. Keep it near your bed at all times, so you can activate the panic button in case you hear noises during the night.