Key Fob Repair: Replacing the Battery

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

But, a new one could not be able to revive your key fob if the internal switch contacts are worn out. Fortunately, this is an easy fix that you can attempt at home:

Replace the Battery

It could be time to change the battery if your key repair car fob isn't working or takes longer to unlock or lock your vehicle than normal. The replacement of a key fob's battery is one of those simple tasks you can complete yourself. It is also an inexpensive solution that will save you a trip to an expert locksmith or dealer.

You can buy the coin-style (CR2032) battery at any auto parts or home improvement general retailer. Key fobs typically have a slot to accept these batteries and opening the case to replace batteries is relatively simple. Depending on the manufacturer, you might need to use an instrument such as a screwdriver to open the cover of the compartment for batteries.

If your key fob comes with clips that hold the batteries in place, gently take them off them with your fingers or non-metallic tools. Remove the battery that was in use and replace it with the new one, but be careful to note its orientation to ensure that you put it in the correct place. It is crucial to avoid touching the battery's flat surfaces, since finger marks can reduce their lifespan.

After the new battery has been installed then close the key fob's case and test it by pushing the button to make sure it is working. If the key fob still isn't working, you might have to open it again and ensure that the battery is inserted correctly.

It could also be that replacing the battery isn't enough to resolve the issue. This could be caused by physical trauma or electrical damage. In that case, you'll need to bring your key fob into a dealer or automotive service center to be repaired. Before you do that, there are four issues that replacing the battery won't solve. It is important to be aware of these issues so that you can get help from a trained technician if you need it. You should also learn how to fix a key fob's faulty transmitter to understand the reasons why it might not be functioning properly.

Clean the Contacts

It is important to keep your key fobs clean to maintain their functionality and longevity. Over time, the natural oils on your fingers and pockets can build up in key fob's buttons and in the crevices. This can lead to keys to not function. It's easy enough to fix, though - all you need is some cleaning alcohol and a cotton swab.

Open the key fob first by gently prying the battery out using either a screwdriver or coin. Note the type of battery (negative and positive side) so you can put it back in the correct way.

Then, wet a small or swab with isopropyl (rubbing) alcohol and begin cleaning away the dirt from all buttons on the fob and the surrounding areas. Pay special attention to the battery's contacts, ensuring that they are clean of grease or dirt. Once you are done, be sure to let the fob as well as its components dry completely.

If your device doesn't function after cleaning it, it may be an idea to reset the system. Check the owner's manual for the instructions on how to do this, and follow them. If the key fob was just dead, this might be enough to bring it back to life.

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

Reset the system

Although today's ultra-modern key fobs come with more features that are safer, more secure, and more convenient than ever before however, they may still experience some issues. Fortunately, most times problems aren't severe or complex and are usually resolved with simple techniques like replacing the battery. If the problem is more severe or if the issue can't be solved with simple methods an expert auto repair shop can repair and replace the key fob.

The ability to lock or unlock using the key fob is the principal function of the device, however, it can also be used to enable certain features of your vehicle. The key fob can be used to lower or raise the sunroof. This feature is useful if you need to open the roof when stuck in traffic or your hands are full. In the same way, the key fob can be used to summon your remote car key repairs when it's located in a tight spot.

The internal circuitry of a key fob can malfunction due to defects in manufacturing or wear and tear. It could be a sign of unpredictable behavior or a complete failure to lock or unlock the car key and repair. Moisture or other electromagnetic interference sources may sometimes affect the function of the keyfob. If your key fob has been damaged by dust or been wet, it needs to be cleaned before you use it again.

If the device continues to behave in a strange manner after replacing the key fob or cleaning the contacts, you might have to perform a factory resetting. This can fix system bugs and improve the performance of your device.

If you're unsure how to perform a reset then consult the device's owner's manual or the manufacturer's website. Certain models require a specific tool to complete the reset, however, you should be able to find instructions that apply to the model you're using.

Contacting a mobile locksmith for cars in Apache Junction is another option to fix issues with your keyfob. These professionals are able to replace and program key fobs on almost all car models. In addition, they can also repair car keys with chips in them.