Key Fob Repair: Replacing the Battery

Getting jostled around in pockets and purses keys fobs can get damaged and stop registering presses accurately. Replacing the small battery, which the majority of car fobs are equipped with in a snap-out case, can sometimes fix this issue.

However, a fresh replacement may not revive your key fob if its internal switch contacts are worn out. There's an easy fix you can try at home:

Replace the Battery

It may be time to change the battery in your key fob if it is slow or takes longer to unlock or lock your broken car key repair than normal. Luckily, replacing a key fob's battery is one of the easiest tasks you can tackle yourself. This is a simple fix that will save you money when you go to the dealership or a locksmith.

The majority of key fobs need batteries that look like coins (CR2032 or similar) which can be found at any general store or home improvement center or auto parts store. Key fobs come with slots for these batteries and it is simple to replace the battery. Depending on the manufacturer you might need to use a screwdriver to open the compartment.

Certain key fobs have clips that hold the battery in place; if so, gently lift these up using your fingers or a non-metallic tool. Remove the old battery and replace it with a new one, being mindful of its orientation in order to put it in the correct place. Avoid touching the flat surfaces of batteries as this could reduce their lifespan.

Once the new battery is installed, close the key fob's case and test it by pressing the button to ensure it works. If it doesn't work it may be necessary to reopen the fob and verify that the battery is inserted correctly.

You may also find that replacing the battery is not enough to resolve the issue. This could be due to physical or electrical trauma. In this scenario, damaged you will have to take your key fob to a dealership or auto service center to make repairs. However, before doing this, you should be aware of four common problems that a replacement battery won't fix. It is crucial to be aware of the issues so that you are capable of contacting a qualified technician if necessary. You can also learn how to fix the defective transmitter of a key fob to determine the reason why it's not working.

Clean the Contacts

Keeping your key fob clean is crucial to its function 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 lead to the keys not to work. It's simple enough to fix, though all you need is some ruby alcohol and a cotton swab.

The key fob must be opened first by gently prying the battery out with the help of a screwdriver or a coin. Be sure to note the type of battery it's (negative and positive sides) so that you can insert it again correctly after you are finished.

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

If your fob doesn't work even after cleaning, you may need to reset the system. Refer to the owner's manual of your device for the instructions on how to do this, and follow them accordingly. If the key fob is dead, this could be enough to bring it back to life.

After the key fob's been cleaned and resynched it is a good idea to ensure regular maintenance. You can ensure that your key fob in good working order for a long time by wiping it clean using a damp towel and mild soap.

Reset the system

Despite the fact that today's high-tech keys fobs are more powerful and secure than ever before, it's possible that they have some problems. Most of the time, these issues aren’t serious or complex and can be solved with simple methods, such as changing the battery. If the issue is more serious or if the issue cannot be resolved with simple methods an expert auto repair shop can repair and replace the key fob.

Getting your car to lock or unlock using the key fob is the primary 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 lift the sunroof. This feature can be very beneficial if you need to open the roof while you are stuck in traffic or your hands are full. The key fob can be used to call your car when it's parked in a tight location.

The internal circuitry of a key fob and buttons may fail due to manufacturing defects or wear and tear. Symptoms include erratic behavior, or the complete inability to lock or unlock the car. Moisture or other electromagnetic interference sources can sometimes interfere with the proper function of a keyfob. If your key fob is dirty or has become wet, it should be cleaned before you use it again.

If the device continues to behave unpredictably after replacing the key fob or cleaning the contacts, you may require an initial reset. This will fix system issues and improve device performance.

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

Contacting a mobile car locksmith in Apache Junction is another option to fix issues with your keyfob. These professionals can replace and program keyfobs for almost all models of cars. They can also repair keys that have chips.