Why We Are In Love With Key Fob Repair (And You Should, Too!) Key Fob Repair: Replacing the Battery

When they are tossed around in pockets and purses key fob buttons may get damaged and stop registering presses reliably. This issue can be addressed by replacing the small battery that is usually located in the snap-out case of most car fobs.

But, a new one is not likely to restore your key fob if its internal switch contacts are worn out. There's an easy fix you can attempt at home:

Replace the Battery

If your key fob feels slow or takes a longer time to unlock or lock your vehicle, it could be time to replace the battery. It's good news that replacing a key fob battery is one of the easiest tasks you can complete yourself. This is a simple fix that will save you money on a trip to the dealer or a locksmith.

You can purchase coins-style (CR2032) battery at any auto parts or home improvement store, or general retailer. The key fobs have a slot for these batteries and it is easy to replace the battery. Depending on the manufacturer, you may have to use a screwdriver to open the compartment.

If your key fob is equipped with clips that keep the batteries in place, gently remove them using your fingers or other non-metallic tools. Install the new battery, making sure to install it correctly. Be aware of its position when you take out the old one. Avoid touching the flat surfaces of batteries since this can reduce their life.

After the new battery has been installed, close the key fob's case and test it by pressing the button to ensure it is working. If the key fob still doesn't function, you may have to open it again and ensure that the battery is inserted correctly.

It is also possible that a simple replacement of the battery will not be enough to resolve the issue, like 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 issues that a replacement battery cannot solve. It is important to be aware of these problems so that you're able to seek out a qualified technician if necessary. It is also important to learn how to fix a key fob's faulty transmitter to learn more about the reasons it may not be working properly.

Clean the Contacts

Keeping your key fob clean is crucial to its function and lifespan. Over time, the natural oils of your fingertips and pocket lint can accumulate on the key fob's buttons and crevices and even cause keys to stop working completely. It's not difficult to fix - all you need is some cleaning alcohol and a cotton swab.

Then, open the key fob by removing the lid off with an instrument or coin and gently removing the battery. Make sure to note down the kind of battery it's (negative and positive sides) to ensure that you put it back in the correct way when you're done.

Then, moisten a cotton swab or small brush with isopropyl (rubbing) alcohol and begin cleaning away the dirt from 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. Once you are done, you must allow the fob and its components completely dry.

If your device isn't working even after cleaning, you might need to reset the system. Consult your owner's manual for instructions on how to do this and follow them accordingly. If car key fob repair near me was just dead, this could be enough to bring it back to life.


It is crucial to maintain the key fob regularly after it has been cleaned and synchronized. By regularly wiping it clean with a damp cloth and mild soap, you can ensure that your key fob will continue to work well for long time to come.

Reset the system

Although today's modern key fobs come with more features that are safer and more convenient than ever however, they may still experience some problems. Fortunately, most times the issues aren't major or complicated and are often fixed with simple methods such as replacing the battery. If the problem is serious or cannot be resolved by simple methods, an auto repair shop will replace and reset your key fob.

The primary function of the device is to lock or unlock your car, however you can also make use of it to activate certain features of your vehicle. One example is the ability to lower or raise a sunroof by using the key fob. This feature is useful when you have to open the roof when stuck in traffic or when your hands are full. Similarly, the key fob can be used to summon your car when it's located in a tight place.

The internal circuitry inside the key fob may fail due to defects in manufacturing or wear and tear. It could be a sign of erratic behavior or total failure 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 is dirty or wet, or is contaminated by dust, it will require cleaning prior to being used again.

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

If you are unsure of the best way to perform a reset then consult the device's owner's guide or the manufacturer's site. Certain models require a specific tool to complete the reset, but you should be able find instructions that apply to the specific model you have.

Another option for resolving problems with your key fob is to call an Apache Junction mobile car locksmith. These professionals are able to replace and program key fobs for nearly all models of automobiles. Additionally, they can also repair keys for cars that have chips inside the keys.