Key Fob Repair: Replacing the Battery
The buttons on key fobs may be damaged and stop working properly after being tossed around in pockets and purses. Replacing the battery, which most car fobs have in a snap-out case can fix this issue.
However, a fresh replacement may not revive your key fob if its internal switch contacts are worn out. This is a straightforward fix you can do at home.
Replace how to repair car key fob
If your key fob seems sluggish or takes longer than normal to unlock or lock your car, it may be time to replace the battery. Luckily, replacing a key fob battery is one of the easiest tasks you can tackle yourself. It is also an inexpensive fix that can save you a trip to an expert locksmith or a dealership.
You can buy coins-style (CR2032) battery at any auto parts, home improvement, or general retailer. The key fobs come with slots for these batteries and it is easy to replace the battery. Depending on the manufacturer, you may require a screwdriver or other tool to open the cover of the compartment for batteries.
Some key fobs come with clips which hold the battery in place. If this is the case then gently lift them up with your fingers or with a non-metallic tool. Install the new battery, making sure to place it in the correct way. Take note of the position when you take out the old one. Avoid touching the flat surfaces of batteries since this could reduce their lifespan.

After the new battery has been installed then close the key fob's case and test it by pressing the button to make sure it works. If it still doesn't work, you may need to reopen the fob and verify that the battery is inserted correctly.
You may also find that a simple replacement of the battery isn't enough to fix the problem. This could be due to electrical damage or physical trauma. In this situation, you'll need bring your key fob into the dealership or service center for repair. Before you do, there are four problems that replacing the battery won't solve. It is essential to be aware of these issues so that you're capable of contacting a qualified technician if necessary. You should also read about how to repair a key fob's defective transmitter to understand the reasons why it might not be working properly.
Clean the Contacts
It is essential to keep your key fobs clean to maintain their functionality and longevity. Over time, natural oils from your hands and pockets can accumulate on the key fob's crevices and buttons and may cause keys to stop functioning completely. It's easy enough to fix - all you need is ruby alcohol and a cotton swab.
Open the key fob first by gently prying the battery away with the help of a screwdriver or a coin. Make sure you note the type of battery it is (negative and positive sides) to ensure that you re-insert it correctly when you're done.
Then then, use a cotton swab (or a small brush) to clean the buttons as well as the surrounding areas of the fob. Make sure to pay special attention to the battery's contacts and ensure that they are clean. Once you are done, be sure to let the fob and its components completely dry.
If your fob still won't function after cleaning it, it may be a good idea to reset the system. Check the owner's manual to find out how to reset the system. This could bring the key fob back to life if the issue was simply the battery being dead.
After the key fob's been cleaned and resynced it is a great idea to ensure regular maintenance. By regularly wiping it down with a damp cloth and mild soap, you can ensure that your key fob will perform well for long time to come.
Reset the system
Although today's modern key fobs come with more features, are safer, and are more convenient than they ever were, they can still encounter some problems. Most of the time, these problems aren't major or complicated and can be resolved with simple procedures, such as changing the battery. If the issue is more severe or if the issue isn't resolved with simple methods an expert auto repair shop can repair and replace the key fob.
The primary purpose of the device is to lock or unlock your car, but you can also use it to activate certain vehicle features. One example is the ability to lower or raise the sunroof with the key fob. car key repair service is extremely useful when you're stuck in traffic and need to open your roof. Similarly, the key fob can be used to summon your car when it's located in a tight location.
The internal circuitry inside the key fob may fail because of manufacturing defects or wear and wear and tear. The signs are erratic behavior or the complete inability to lock or unlock the car. Sometimes, moisture or other electromagnetic interference sources can interfere with the proper operation of the key fob. If your key fob has been dirty or has become wet, it must be cleaned before you can use it again.
If the device continues to behave unpredictably after replacing the key fob or cleaning the contacts, you could require an initial reset. This can fix system-related issues and restore device performance.
If you're not sure the best way to perform a reset, consult your device's owner's manual or the manufacturer's site. Some devices require a special tool to perform the reset, however, you should be able find instructions that apply to your specific model.
Contacting a mobile locksmith for cars in Apache Junction is another option to solve problems with your key fob. These professionals can replace and program keyfobs for nearly all models of cars. They can also repair car keys with chips in them.