Key Fob Repair: Replacing the Battery

When they are tossed around in pockets and purses, key fob buttons can be damaged and not register presses accurately. This problem can be fixed by replacing the small battery that is usually found in the snap-out cases of most car fobs.

However, a fresh replacement may not revive your key fob if the internal switch contacts are worn out. It's a good thing that this is an easy fix that you can do at home:

Replace the battery

If your key fob is feeling slow or takes a longer time to unlock or lock your car, it may be time to replace the battery. Replacing the battery of your key fob is one of those simple tasks you can complete yourself. It's also a cost-effective fix that could help you avoid a trip to an expert locksmith or a dealership.

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

Some key fobs come with clips which hold the battery in place; If so then gently lift them up using your fingers or a non-metallic device. Install the new battery, taking care to install it correctly. Note its orientation when you remove the old one. Avoid touching the flat surfaces of batteries since 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 confirm it is working. If it still doesn't work you might need to open the case again and verify that the new battery is properly installed.

There is a chance that simply replacing the battery isn't enough to resolve the issue. This could be caused by physical or electrical trauma. In this case you'll be required to take your key fob to a dealership or auto service center to make repairs. Before you do that, there are four problems that the replacement battery can't fix. It is crucial to be aware of the problems so that you're able to seek out an experienced technician should you need. You can also find out how to fix the malfunctioning transmitter of a key fob to discover the reason it's not working.

Clean the Contacts

It is crucial to keep your keys clean to maintain their functionality and longevity. Over time the natural oils on your fingers and pockets can build up in the key fob's buttons and crevices. This can lead to keys to not function. All you require is rubbing alcohol, an swab of cotton and rubbing alcool.

First, you need to open the key fob by taking the lid off using an instrument or coin and gently prying out the battery. Make sure to note down the type of battery it's (negative and positive sides) to ensure that you insert it again correctly after you're done.

After that, apply a cotton swab (or a small brush) to clean the buttons and surrounding areas of the fob. Make sure to pay special attention to the contacts of the battery and make sure they are clean. After you have finished, let the fob and its components completely dry.

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

It is important to maintain the key fob regularly after it has been cleaned and synchronized. You can keep your key fob in good working order for a long time by wiping it with a damp towel and mild soap.

Reset the System

Despite the fact that today's high-tech key fobs are more powerful and secure than ever before, it's possible that they have certain problems. Fortunately, most of the time the issues aren't major or complex and are usually resolved with simple techniques like replacing the battery. If the problem is more severe or if the issue cannot be resolved by simple solutions an expert auto repair shop can replace and reprogram the key fob.

The primary function of the device is to lock or unlock your car, but you can also make use of it to activate certain vehicle features. One example is the ability to lower or raise a sunroof using the key fob. 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 summon your vehicle when it is parked in a tight spot.

The internal circuitry of a key fob can malfunction due to defects in manufacturing or wear and wear and tear. It could be a sign of unpredictable behavior or a complete failure to lock or unlock the car. Sometimes moisture, as well as other electromagnetic interference sources could interfere with the operation of a key fob. If your key fob has been contaminated with dust or has become wet, it must be cleaned before you can use it again.

Replacing the battery of your key fob or cleaning the contacts might fix a malfunctioning device, however, if it continues to malfunction you might need to perform a factory reset. This will help eliminate system bugs and restore the operating efficiency of the device.

If you're unsure how to do the factory reset on your device, check 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 the model you have.