Key Fob Repair: Replacing the Battery

The buttons on key fobs may become damaged and stop functioning properly after being tossed around in purses and pockets. This issue can be resolved by replacing the battery that is usually located in the snap-out case of most car remote key fob repair fobs.

But, a new one could not be able to revive your key fob if the internal switch contacts are worn out. This is a simple fix you can perform at home.

Replace the battery

If your key fob is feeling slow or takes longer than usual to unlock or lock your vehicle, it could be time to replace the battery. It's good news that replacing the battery of your key fob is one of the easiest tasks that you can do yourself. It's also a cheap solution that will save you a trip to an expert locksmith or dealer.

You can purchase a coin-style (CR2032) battery at any auto parts, home improvement, or general store. The key fobs usually have a slot that can accept these batteries and opening the case to replace batteries is quite simple. Depending on the brand, you may have to use a screwdriver in order to open the compartment.

If your key fob comes with clips that hold the batteries in place, remove them with your fingers or with non-metallic tools. Install the new battery, making sure to install it correctly. Be aware of its orientation when removing the old one. Avoid touching the flat surfaces of the batteries as they can cause damage to their lives.

Close the case of the key fob and repair car keys test its function by pressing the button. If it doesn't work it may be necessary to open the case again and check whether the new battery has been properly installed.

There is a chance that simply replacing the battery is not enough to solve the issue. This could be caused by physical or electrical trauma. In this instance you'll have to bring your key fob to a dealer or auto service center to make repairs. Before you do, there are four issues that a replacement battery cannot fix. You must be aware of these issues so that you can seek assistance from a certified technician when necessary. You can also find out how to fix the defective transmitter of a key fob in order to discover the reason it's not working.

Clean the Contacts

It is important to keep your key fobs clean in order to maintain their functionality and longevity. Over time, natural oils from your fingertips and pocket lint can build up on the keys' crevices and buttons and may cause keys to stop working completely. All you need is rubbing alcohol, a cotton swab and some 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 nature of the battery (negative and positive sides) so that you can reinstall it correctly.

Then, wet a small or swab with isopropyl (rubbing) alcohol and start cleaning away the dirt from all of the fob's buttons and the surrounding areas. Be particular about the battery's contacts, making sure that they are free of any grease or dirt. After you have finished cleaning the fob, let it and all its components completely dry.

If your fob still won't function after cleaning it, it might be an idea to reset the system. Refer to the owner's manual of your device for the instructions on how to do this and repair car keys follow them. 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 great idea to maintain regular maintenance. You can ensure that your key fob functioning for 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, are safer, and are more convenient than ever however, they may still experience some problems. Luckily, the majority of the time problems aren't severe or complicated and are often fixed with simple methods like replacing the battery. If the issue is severe or isn't resolved with simple methods such as auto repair shops, they will replace and reprogram your key fob.

Making your car lock or unlock with the key fob is the primary function of the device, but it also can be used to activate some car features. One example is the ability to lower or raise the sunroof by using the key fob. This feature is very useful when you're stuck in traffic and need to open your roof. Similarly, the key fob can be used to summon your vehicle when it is parked in a tight place.

The internal circuitry of a key fob and buttons can become faulty due to manufacturing defects or wear-and-tear. The signs are erratic behavior or a complete failure to lock or unlock the car. Sometimes moisture, or other electromagnetic interference sources can affect the operation of a key fob. If your key fob is wet or contaminated with dust, it will need to be cleaned before being used again.

If the device continues to behave erratically after replacing the key fob or cleaning the contacts, you may require a factory resetting. This can fix system-related issues and improve device performance.

If you're unsure the best way to perform a reset, consult your device's owner's manual or manufacturer's site. Some devices require a special tool to complete the reset but you should be able find the instructions for the specific model you have.

Another option for resolving issues with your key fob is to call an Apache Junction mobile car locksmith. These professionals can program and replace keyfobs for almost all models of cars. They can also repair car keys that have chips inside the keys.