Key Fob Repair: Replacing the Battery

The buttons on key fobs can get damaged and stop working after being tossed around in purses and pockets. This issue can be resolved by replacing the battery that is typically found in the snap-out case that comes with the majority of car fobs.

However, a new replacement could not be able to revive your key fob if the switch's internal contacts are worn out. This is a simple fix that you can do at home.

Replace the battery

If your key fob is feeling sluggish or takes longer than usual to unlock or lock your vehicle key repairs, it could 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 cheap solution that will help you avoid a trip to a professional locksmith or dealership.

The majority of key fobs require a coin-style battery (CR2032 or similar) which can be found at any general store, home improvement center, or auto parts stores. The key fobs usually have a slot to accept the batteries and opening the case for Keyless Entry repairs battery replacement is relatively simple. Depending on the brand you will need make use of a screwdriver to open the compartment.

Some key fobs have clips that secure the battery in place. if so, gently lift these up with your fingers or a non-metallic device. Install the new battery, taking care to put it in the right place. Be aware of its position when you take out the old one. It is essential to avoid touching the batteries' flat surfaces since scratches from fingers can decrease their lifespan.

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's still not working you might need to open the case again and make sure that the new battery is properly installed.

There is a chance that replacing the battery isn't enough to solve the issue. This could be due to physical or electrical trauma. In that case, you'll need to bring your key fob to a dealer or automotive service center to be repaired. Before you do this, there are four issues a replacement battery cannot solve. It is important to be aware of these issues, so that you can seek assistance from a certified technician if needed. You should also learn how to repair a defective key fob transmitter to understand the reasons why it might not be working properly.

Clean the Contacts

Keeping your key fob clean is crucial to its function and longevity. Over time, natural oils from your fingers and pocket lint can build up on the crevices and buttons, and can even cause the keys to stop working completely. All you need is rubbing alcohol, an swab of cotton and alcohol to rub it on.

First, open up the key fob by taking the lid off using an instrument or coin and gently prying out the battery. Note the type of battery (negative and positive sides) to ensure you reinstall it correctly.

Then, wet a small or swab with isopropyl (rubbing) alcohol and start cleaning away the dirt from all the buttons on the fob and the surrounding areas. Make sure to pay special attention to the battery's contacts and make sure they are clean. When you are done, let the fob and all its components completely dry.

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

After the key fob has been cleaned and resynced it is a great idea to keep up with regular maintenance. You can keep your key fob working well for keyless Entry repairs many years by wiping it clean with a damp towel and mild soap.

Reset the system

Although today's modern key fobs are equipped with more features that are safer, more secure, and more convenient than they ever were, they can still encounter some issues. Most of the time these issues aren’t serious or complex and can be resolved with simple methods, such as changing the battery. If the problem is more severe or the issue cannot be resolved with simple methods, a professional auto repair shop can repair and replace the key fob.

The ability to lock or unlock using the key fob is the principal purpose of the device, but it can also be used to enable certain vehicle features. The key fob can be used to lower or raise a sunroof. This feature is useful if you need 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 is parked in a tight place.

The internal circuitry of the key fob may fail due to defects in manufacturing or wear and tear. The signs are erratic behavior or an inability to lock or unlock the car. Moisture or other electromagnetic interference sources may sometimes affect the function of the keyfob. If your key fob has become damp or 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 a factory resetting. This will fix system issues and improve the performance of your device.

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

Contacting a mobile locksmith for cars in Apache Junction is another option to solve problems with your key fob. They can replace and program keyfobs for nearly all car models. They can also repair keys that have chips.