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A Key Fob Repair Success Story You'll Never Be Able To
Key Fob Repair: Replacing the Battery

When they are tossed around in purses and pockets, key fob buttons can deteriorate and fail to register presses reliably. This problem can be fixed by replacing the small battery that is typically found in the snap-out case that comes with the majority of car fobs.

If the contacts inside the key fob are worn, a new replacement may not be sufficient to make it work again. It's a good thing that this is an easy fix that you can attempt at home:

Replace the battery

If your key fob is feeling sluggish or takes longer than normal to unlock or lock your car, it may be time to replace the battery. It's good news that replacing a key fob's battery is among the simplest tasks you can complete yourself. It's also a cost-effective fix that can help you avoid a trip to an expert locksmith or dealer.


The majority of key fobs need the use of a coin-type battery (CR2032 or similar) that you can find at any general store or home improvement store or auto parts store. The key fobs have a slot for these batteries, and it is simple to replace the battery. Depending on the manufacturer, you may require an instrument such as a screwdriver to remove the cover from the battery compartment.

If your key fob is equipped with clips that keep the batteries in place, gently remove them with your fingers or non-metallic tools. Install the new battery, taking care to install it correctly. Note its position when you take out the old one. Avoid touching the flat surfaces of the batteries as this can reduce their life.

Once the new battery is installed then close the key fob's case and test it by pressing the button to make sure it is working. If it's still not working you might need to open the case again and verify that the battery is properly installed.

It is also possible that a simple battery replacement will not be enough to resolve the issue, for instance physical or electrical trauma. In this scenario you'll have to take your key fob to a dealer or auto service center to make repairs. However, before doing so, there are four common problems that a replacement battery won't solve. You must be aware of these issues so that you can get help from a trained technician when necessary. You can also find out how to fix the faulty transmitter of a key fob to find out why it is not working.

Clean the Contacts

It is important to keep your keys clean in order to maintain their function and durability. Over time, the natural oils of your fingertips and pocket lint can accumulate on the crevices and buttons and even cause the keys to stop working altogether. It's easy enough to fix all you need is some cleaning alcohol and a cotton swab.

Then, open the key fob by taking the lid off using a screwdriver or coin and gently prying out the battery. Be sure to note the type of battery it is (negative and positive sides) so that you can insert it again correctly after you're done.

After that then, make use of a cotton swab (or a small brush) to clean the buttons and the surrounding areas of the fob. Pay particular attention to the contacts of the battery, and that they are clean. After you're done, make sure to let the fob and its components dry completely.

If your fob doesn't work even after cleaning, you may want to reset the system. Go through the owner's manual of your device to find out how to reset the system. This may be able to bring the key fob back to normal if the issue was simply due to a dead battery.

It is essential to keep the key fob regularly after it is cleaned and resynchronized. You can ensure that your key fob is functioning for many years by wiping it with a damp towel and mild soap.

Reset the system

Although today's modern key fobs are equipped with more features that are safer, more secure, and more convenient than ever, they can still encounter some issues. Fortunately, most times the issues aren't major or complex, and can be solved with simple solutions such as replacing the battery. If the issue is severe or cannot be resolved by simple techniques, an auto repair shop will replace and change the key fob.

The ability to lock or unlock using the key fob is the primary purpose of the device but it also can be used to activate some features of your vehicle. One example is the ability to lower or raise the sunroof with the key fob. This feature is useful if you need to open the roof when stuck in traffic or your hands are full. The key fob can also be useful for summoning your car even if it's in an awkward spot.

The internal circuitry of the key fob could fail due to manufacturing defects or wear and tear. Symptoms may include unpredictable behavior or a complete failure to lock or unlock the car. Moisture or other electromagnetic interference sources can occasionally interfere with the function of a keyfob. If your key fob has been dirty or has been wet, it needs to be cleaned before you use it again.

If the device continues to behave erratically after replacing the key fob or cleaning the contacts, you could require a factory resetting. This will eliminate system issues and restore operating efficiency of the device.

If remote key fob repair 're not sure how to reset your device make sure you consult the owner's manual or the manufacturer's website. Certain models require a specific tool to perform the reset, however, you should be able to find the instructions for the specific model you have.

Contacting a mobile car locksmith in Apache Junction is another option to solve issues with your key fob. They are able to replace and program key fobs on almost all models of automobiles. In addition, they can also fix car keys with chips in them.

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