How to Repair Car Key Fobs
Key fobs can become damaged even if we utilize them a lot. In fact, they can break down in many different ways.
Other issues could be more important than the battery being dead. Most of these issues can be solved with a quick fix at home.
Dead Battery
A dead battery is the most common reason for a key fob that is not working. Fob batteries tend to drain quickly, especially when they are exposed to hot or humid temperatures, or water. It's a good idea to keep an additional fob battery in your wallet just in case.
You can usually tell when the battery of your car key fob is depleted by the fact that the LED light will cease to blink. The key fob could also stop working from the same distance that it used to. In this case the key fob might require reprogramming or replaced completely.
It is easy to replace the car keyfob battery. First, find out what type of battery is used. The type of battery should be engraved on the side of the fob. If you're not sure then an easy Google search will help. The key fob can be opened along the seam after you have identified the type of battery. You will need to use small flathead screwdrivers or your fingernail to pry the two halves apart. Take the old battery out, and replace it with a brand new one. Make sure to insert the new battery with the positive (+) side facing towards the buttons on the fob.
Some drivers may not be aware their fob is dead until they try to lock or unlock their car and the buttons don't respond. In some cases this problem can be resolved by reprogramming the fob but that can be costly and time-consuming. You can also call roadside assistance to determine if they are able to restart your vehicle and get it back on the road.
If you've tried both solutions but your vehicle doesn't start, it's the right time to speak with a professional. A trained technician will be able to determine if the car's computer system needs to be reprogrammed or the fob simply requires a new battery. They can also recommend a reputable auto shop to replace your fob's keys. In the end, sometimes a brand new fob is the best solution.
Circuit Board Damage
The key fob isn't indestructible, but it can endure a lot of physical damage. The circuit board, battery and buttons are all susceptible to wear and wear and tear. It is essential to take care of these components to ensure your key fob remains in good condition.
Check that the battery is still working in your key fob. Replace the battery to see if it solves the issue. If this does not work, you might need to open the fob and clean the contact surfaces. This can be difficult since some key fobs don't have easy-release mechanisms that allow you to open them and you may end up damaging your key fob if attempt to break it. You can purchase a special tool to open your key fob, however it is recommended to follow the manufacturer's instructions to avoid damaging it.
Another common problem is a damaged or faulty circuit board on the key fob. It can be caused by various factors, such as moisture or dirt that gets into the battery compartment software, hardware issues or even an unintentional firmware update. If your key fob is not working, you may want to consider getting it changed. This can be accomplished by a locksmith who is skilled in this work.
Radio interference is another possibility. repair car key fob can happen if there are other wireless devices transmitting on the same frequency as your key fob, such radar detectors, home security systems. If this is the case, inquire with the other manufacturers of the device to ensure that your key fob isn't affected by their signals.
It's also possible that your key fob is equipped with an issue with the switch or another electrical component that needs to be replaced. There are online guides that will guide you through the process of fixing this yourself. You should be careful when doing this, however, because the circuit board inside the key fob is tiny and is prone to breaking if handled with care. If you decide to do this yourself, be sure to use a high quality SMT switch and solder it in place correctly.
In a state of wear Out Buttons
Car key fobs can suffer lots of wear and tear. They are more prone to being dropped and spend a lot time being jostled in your purse or pocket. The constant jostling can cause the buttons to wear down or become stuck. A simple adjustment can solve the issue.
The majority of modern key fobs have sensors that detect when they've been used. They're designed to detect this so that they can decrease the chance of someone stealing your car. If the buttons on your key fob aren't responding when pressed, they are worn out and need to be replaced.
Key fobs also contain a circuit board inside them that sends signals to the car. These signals include commands to unlock and lock, as well as commands to start your engine. If the internal circuit board is damaged, your key fob will not be able to unlock or start your engine. Generally, this kind of damage is caused by water, force blunt or something that scratches the circuit board.
You'll be able to tell that the buttons on your key fob are deteriorating if you find yourself pressing them harder than usual in order to get them working. The fob may be unable to send an alert to your car or have a lower range.
If you're unable unlock your key fob, unlock or start your car, it's important to call an emergency locksmith in your area. They'll be able to determine whether the key fob is damaged or if your ignition cylinder has worn down.
Fortunately, most car keyfob issues aren't very complicated or even serious. Keep a spare key fob in your car at all times to avoid being shocked by a malfunctioning device. You'll never be stranded due to an unresponsive or lost key. If you do lose your car key spare A locksmith can change the key to ensure it is compatible with the ignition of your car. They'll also be able to fix any internal damage that's been caused to your key fob.
Broken Case

The case of the key fob is more than protect the batteries and buttons. It also houses the circuit board responsible for doing all of the electrical magic when you hit the button on your key fob. The circuit board relays the signal from your keyfob to your car.
If this board is damaged or dead the key fob won't be able to operate. A key fob that is dead may only need to be reprogrammed by a local auto locksmith, or dealership.
Batteries could be the cause the key fob's not working. The battery can be replaced at home. The positive side is that you can get an alternative battery on the internet or at a local auto parts shop since these batteries aren't exclusive to key fobs.
There are many ways to open a key fob to get inside, based on the kind. A quick internet search should show you which type of key fob yours is and the type of battery it takes. From there, you can buy an alternative and then simply pop the old one out and put the new one in.
The biggest concern when repairing a broken car key fob is that you don't want to damage the circuit board or buttons any further. If you attempt to remove a key fob with an edge that is sharp like a screwdriver can break the case or damage the plastic. A replacement case isn't expensive and you can buy a complete fob assembly including the electronics on eBay or Amazon for less than $40.
If your key fob doesn't work, check to see if the batteries are depleted or whether the circuit board has been damaged. If that's not the case, a professional can fix it quickly and inexpensively. If not, it may be time to replace the fob. Be sure to check the warranty of any fob replacement or used that you purchase online.