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Key Fob Repair: Replacing the Battery

The buttons on key fobs may be damaged and stop functioning properly after being tossed around in purses and pockets. Replacing the battery, which most car fobs come with in a snap-out bag, can fix this issue.

If the contacts on the key fob are damaged, a replacement may not be sufficient to make it work again. There's an easy fix that you can attempt at home:

Replace the Battery

It's possible to change the battery if your key fob isn't working or takes longer to unlock or lock your car than normal. Fortunately, replacing a key fob battery is one of the most simple tasks that you can do yourself. It is also an inexpensive fix that could help you avoid a trip to a professional locksmith or dealership.

The majority of key fobs need batteries that look like coins (CR2032 or similar) that you can find at any general store or home improvement center or auto parts stores. The key fobs usually have a slot to accept the batteries, and opening the case for battery replacement is quite simple. Depending on the manufacturer you will need make use of a screwdriver to open the compartment.

Certain key fob repairs fobs have clips that hold the battery in place. If so, gently lift these up with your fingers or with a non-metallic tool. Remove the old battery and install an alternative one, and be careful to note its orientation so that you can 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 its function by pressing the button. If it's still not working you might need to reopen the fob and verify that the battery is properly inserted.

It is also possible that a simple battery replacement isn't enough to solve the problem, such as electrical damage or physical trauma. In this instance you'll need to take your key fob to a dealership or auto service center for repairs. Before you do, there are four problems that replacing the battery won't fix. You should be aware of these issues so that you can seek assistance from a certified technician if you need it. You can also find out how to fix the defective transmitter of a key fob in order to determine the reason why it's not working.

Clean the Contacts

Cleaning your key fob is vital to its functionality and longevity. Over time, natural oils from your fingers and pocket lint can build up on the key fob's buttons and crevices, and can even cause the keys to stop functioning completely. It's not difficult to fix, though - all you need is ruby alcohol and a cotton swab.

First, open the key fob by gently prying the battery out with a coin or screwdriver. Note the kind of battery (negative and positive sides) to ensure you put it back in the correct way.

Then, wet a swab or small brush with isopropyl (rubbing) alcohol and begin taking off the dirt from all of the fob's buttons and the surrounding areas. Be particular about the battery contacts, making sure they are free of grease or dirt. Once you're done cleaning the fob, let it and its components completely dry.

If your fob still won't work after cleaning it, it may be an ideal idea to reset the system. Consult your owner's manual for the instructions on how to do this, and follow them. This could be able to bring the key fob back to life if the issue was simply due to a dead battery.

It is essential to keep the key fob on a regular basis after it has been cleaned and resynchronized. By wiping it clean with a damp cloth and gentle soap, you can be sure that your key fob will continue to work well for the years to come.

Reset the system

Despite the fact that today's high-tech key fobs are more efficient, secure, and convenient than ever before, it's possible to run into some problems. Fortunately, most of the time, these issues aren't serious or complicated and are often resolved with simple techniques such as replacing the battery. If the issue is more serious or the issue can't be solved using simple methods such as a professional auto repair shop can replace and reprogram the key fob.

The primary purpose of the device is to lock or unlock your car, but you can also make use of it to activate certain features of your vehicle. The key fob can be used to lower or lift a sunroof. This feature is very helpful when you are stuck in traffic and need to open your roof. The key fob is also useful for summoning your car even if it's in a difficult location.

The key fob's internal circuitry and buttons can become faulty due to manufacturing defects or wear-and-tear. Signs of this include irregular behavior, or the complete inability to lock or unlock the car. Sometimes moisture, or other electromagnetic interference sources can affect the operation of the key fob. If your key fob has become damp or contaminated by 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 may have to perform a factory resetting. This will eliminate system issues and restore performance of the device.

If you're unsure of how to do the factory reset on your device, refer to the device manufacturer's website or the owner's manual. Some devices require special tools to reset them, but you should find instructions specific to your model.

Contacting a mobile locksmith for cars in Apache Junction is another option to solve issues with your key fob. They can replace and program keyfobs to fit almost all models of cars. They can also Repair Key car keys with chips in the keys.