Buzzwords De-Buzzed: 10 Other Ways To Say Key Fob Repair Key Fob Repair: Replacing the Battery

The buttons on key fobs may become damaged and stop functioning properly after being tossed around in pockets and purses. This problem can be fixed by replacing the small battery that is usually located in the snap-out case that comes with most car fobs.

But, a new one is not likely to restore your key fob if the switch's internal contacts are worn out. This is a simple fix that you can perform at home.

Replace the Battery

It's possible to replace the battery if your key fob isn't working or takes longer to unlock or lock your vehicle than usual. The replacement of a key fob's battery is one of those simple tasks you can complete yourself. It is also an inexpensive fix that could save you the hassle of a professional locksmith or dealership.

You can buy coins-style (CR2032) battery at any auto parts, home improvement, or general retailer. The key fobs have slots for these batteries and it is simple to replace the battery. Depending on the manufacturer, you might need to use a screwdriver or other tool to open the cover for the battery compartment.

Some key fobs have clips that hold the battery in place. If this is the case, gently lift these up with your fingers or with a non-metallic tool. Remove the old battery and replace it with the new one, but be mindful of its orientation in order to install it correctly. Avoid touching the flat surfaces of batteries as this can reduce their life.

Close the case of the key fob and test the functionality by pressing the button. If the key fob doesn't function, you may have to open it again and verify that the battery is correctly inserted.

There is a chance that replacing the battery isn't enough to fix the problem. This could be due to electrical damage or physical trauma. In this instance, you will need to take your key fob to a dealership or auto service center to make repairs. Before you do that, there are four issues that a replacement battery cannot solve. It is crucial to be aware of these issues so that you are in a position to find an experienced technician should you need. You can also find out how to fix the faulty transmitter of a key fob in order to find out why it is not working.

Clean the Contacts

Cleaning your key fob is vital to its functionality and longevity. Over time, the natural oils on your fingers and pockets can accumulate in the key fob's buttons and in the crevices. This can cause the keys not to work. It's not difficult to fix, though - all you need is ruby alcohol and a cotton swab.

Then, open the key fob by removing the lid off using an instrument or coin and gently removing the battery. Note the nature of the battery (negative and positive sides) so you can install it correctly.

Then, wet car keys repair or swab with isopropyl (rubbing) alcohol and start taking off the dirt from all buttons on the fob and the surrounding areas. Pay particular attention to the battery's contacts and ensure that they are clean. After you're done, make sure to let the fob and its components dry completely.

If your device doesn't work after cleaning it, it could be an idea to reset the system. Refer to the owner's manual of your device for instructions on how to do this and follow them accordingly. This may be able to bring the key fob back to normal if the issue was due to a dead battery.

Once the key fob has been cleaned and resynced it is a good idea to keep up with regular maintenance. You can ensure that your key fob functioning for many years by wiping it clean using a damp towel and mild soap.

Reset the system

Despite the fact that today's high-tech key fobs are more powerful, secure, and convenient than ever before, it's possible to have certain problems. Fortunately, most of the time, these issues aren't serious or complicated and are often resolved with simple techniques like replacing the battery. If the problem is serious or is not resolved with simple methods, an auto repair shop will replace and reprogram your key fob.

Getting your car to lock or unlock with the key fob is the primary purpose of the device, but it can also be used to enable certain car features. The key fob can be used to lower or lift the sunroof. This feature is very helpful when you're stuck in traffic and need to open your roof. The key fob is also useful for summoning your car when it's parked in a shady place.


The internal circuitry inside the key fob may fail because of manufacturing defects or wear and tear. It could be a sign of unpredictable behavior or a complete failure to lock or unlock the car. Sometimes, moisture or other sources of electromagnetic interference can affect the operation of a key fob. If your key fob has been dirty or has been wet, it needs to be cleaned before you use it again.

Replacing the key fob battery or cleaning the contacts could solve a malfunctioning device, but if it continues to run erratically you might need to perform a factory reset. This will fix system issues and restore device performance.

If you are unsure of how to reset your device make sure you consult the owner's manual or manufacturer's site. Certain devices require a specific tool to perform the reset, however, you should be able find instructions that apply to your specific model.

Contacting a mobile car locksmith in Apache Junction is another option to fix issues with your keyfob. These experts can replace and program keyfobs for nearly all car models. They can also fix keys with chips.