Key Fob Repair: Replacing the Battery

The buttons on key fobs may become damaged and stop functioning properly after being tossed around in pockets and purses. This problem can be fixed by replacing the battery that is usually found in the snap-out case that comes with most car fobs.

But, a new one may not revive your key fob if its internal switch contacts are worn out. There's an easy fix that you can do at home:

Replace the battery

It could be time to change the battery in your key fob if it isn't working properly 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 that you can perform yourself. This is a simple fix that will save you money when you go to the dealer or a locksmith.

The majority of key fobs require batteries that look like coins (CR2032 or similar) which you can purchase at any general store or home improvement center or auto parts stores. Key fobs come with an opening for these batteries, and it is easy to replace the battery. Depending on the manufacturer you will need make use of a screwdriver to open the compartment.

Certain key fobs have clips which hold the battery in place; If so you can gently lift them up using your fingers or a non-metallic device. Install the new battery, taking care to install it correctly. Take note of the orientation when removing the old one. It is important to avoid touching the battery's flat surfaces, since finger marks can reduce their life.

After the new battery has been installed and the key fob is closed, close its case and test it by pressing the button to ensure it works. If it still doesn't work you might need to open the fob again and make sure that the new battery is inserted correctly.

It is also possible that a simple replacement of the battery isn't enough to solve the problem, such as physical or electrical injury. In this instance, you will need to take your key fob to a dealership or auto service center for repairs. However, before you do so, there are four common problems that a battery replacement can't fix. You should be aware of these issues, to be able to seek assistance from a certified technician when necessary. You should also learn how to fix a key fob's faulty transmitter to find out more about the reasons it may not be working correctly.

Clean the Contacts

Cleaning your key fob is vital to its functionality and longevity. Over time, the natural oils of your fingertips and pocket lint can build up on the crevices and buttons and even cause the keys to stop functioning completely. All you need is rubbing alcohol, the cotton swab, and some alcohol to rub it on.

The key fob must be opened first by gently prying the battery out with either a screwdriver or coin. Note the kind of battery (negative and positive sides) to ensure you reinstall it correctly.

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

If your fob still won't work after cleaning it, it could be an ideal idea to reset the system. Check the owner's manual to find out how to reset the system. If the key fob was dead, this may be enough to bring it back to life.

After the key fob has been cleaned and resynced it is a good idea to ensure regular maintenance. You can ensure that your key fob is working well for many years by wiping it clean using a damp towel and mild soap.

Reset the System

Despite the fact that today's modern-day key fobs are more powerful and secure than ever, it is possible for them to run into some problems. Fortunately, most times the issues aren't major or complex and are usually solved with simple solutions like replacing the battery. If the issue is more serious, Broken or if the issue cannot be resolved by simple solutions such as a professional auto repair shop can replace and reprogram the key fob.

The ability to lock or unlock using the key fob is the primary purpose of the device but it can also be used to activate certain car features. The key fob can be used to lower or lift a sunroof. This feature can be very useful if you need to open the roof while stuck in traffic or your hands are full. The key repair car fob can also be helpful in bringing your car to life if it's parked in a difficult location.

A key fob's internal circuitry and broken buttons can become faulty due to manufacturing defects or wear-and-tear. Symptoms may include erratic behavior or total failure to lock or unlock the car. Moisture or other electromagnetic interference sources may sometimes interfere with the proper function of the keyfob. If your key fob is contaminated with dust or has become wet, it must be cleaned prior to attempting to use it again.

If the device continues to behave in a strange manner after replacing the key fob or cleaning the contacts, you could need to perform an initial reset. This will eliminate system issues and restore operating efficiency of the device.

If you're unsure of how to perform a factory reset on your device, consult the official website of the manufacturer or your owner's manual. Certain devices require special tools to reset them, however you should find instructions for your specific model.

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