Key Fob Repair: Replacing the Battery

When they are tossed around in purses and pockets key fob buttons may get damaged and stop registering presses accurately. This problem can be fixed by replacing the small battery that is typically found in the snap-out case of most car fobs.

But, a new one may not revive your key fob if the internal switch contacts are worn out. This is a simple fix that you can do at home.

Replace the battery

If your key fob feels slow 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 one of the most simple tasks that you can do yourself. It's also a cost-effective solution that will save you the hassle of an expert locksmith or a dealership.

The majority of key fobs require batteries that look like coins (CR2032 or similar) which can be found at any general store or home improvement store or auto parts store. The key fobs usually come with a slot for these batteries, and opening the case for battery replacement is quite simple. Depending on the manufacturer, you may need to use a screwdriver or another tool to open the cover for the compartment for batteries.

If your key fob is equipped with clips that hold the batteries in place, gently remove them with your fingers or other non-metallic tools. Remove the old battery and install a new one, being mindful of its orientation to ensure that you install it correctly. It is crucial to avoid touching the batteries' flat surfaces, as finger marks can shorten their life.

Once the new battery is installed, close the key fob's case and test it by pressing the button to make sure it works. If the key fob still doesn't function, you may have to open it again and ensure that the battery is properly inserted.

It is also possible that a simple replacement of the battery will not be enough to resolve the problem, such as physical or electrical injury. In this scenario you'll have to take your key fob to a dealer or auto service center to make repairs. However, before doing this, you should be aware of four common problems that a battery replacement can't fix. You should be aware of these issues, to be able to seek help from a qualified technician if needed. You can also learn how to fix the faulty transmitter of a key fob to discover the reason it's not working.

Clean the Contacts

It is crucial to keep your key fobs clean to ensure their functionality and longevity. Over time, natural oils from your fingertips and pocket lint can build up on the keys' crevices and buttons and even cause the keys to stop functioning completely. All you need is rubbing alcohol an swab of cotton and rubbing alcool.

First, you need to open the key fob by popping the lid off using an instrument or coin and gently prying out the battery. Make sure you note the type of battery it is (negative and positive sides) so that you can put it back in the correct way when you're done.

Then, wet a swab or small brush with isopropyl (rubbing) alcohol and start cleansing the dirt off all of the fob's buttons and the surrounding areas. Pay particular attention to the contacts of the battery and make sure they are clean. After you have finished, let the fob and its components completely dry.

If your device isn't working even after cleaning, you might want to reset the system. Go through the owner's manual of your device for instructions on how to reset the system. This may be able to bring the key fob back to life if the problem was simply the battery being dead.

After the key fob has been cleaned and resynthesized it is a good idea to keep up with regular maintenance. You can keep your key fob 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 and more convenient than ever however, they may still experience some issues. Most of the time, these problems aren't major or complicated and can be fixed by simple methods, such as changing the battery. If the issue is more severe, or if the issue can't be solved using simple methods such as a professional auto repair shop can replace and reprogram the key fob.

The device's primary function is to lock or unlock your car, however you can also use it to activate certain vehicle features. The key fob can be used to lower or lift a sunroof. This feature is useful when you have to open the roof when you are stuck in traffic or your hands are full. The key fob can also be helpful in bringing your car to life even if it's in an awkward place.

The internal circuitry of a key fob can malfunction due to 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 could interfere with the operation of a key fob. If your key fob has become wet or contaminated with dust, it will need to be cleaned before being used again.

If the device continues to behave unpredictably after replacing the key fob or cleaning the contacts, you might need to perform the factory reset. This will help eliminate bugs in the system and restore the performance of the device.

If you're not sure how to reset your device, consult your device's owner's guide or the manufacturer's website. Certain models require a specific tool to complete the reset however, you should be able locate instructions that are applicable to the specific model you have.

Contacting a mobile locksmith for cars in Apache Junction is another option to resolve problems with your key fob. They are able to replace and program key fobs on almost all car key immobiliser repair models. Additionally, they can also repair car keys with chips in the keys.