How to Repair Car Key Fobs
Although we put them through a lot keys aren't indestructible. They can break down in a variety of ways.
Other issues can be more serious than the battery being dead. Fortunately, many of these can be fixed with a quick DIY fix at home.
Dead Battery
A dead battery is the most common cause of a key fob not working. Fob batteries drain quickly, particularly if they're exposed to extreme conditions like humidity, temperatures or even water. Keep an extra battery in your wallet in case you require it.
It is easy to tell that the battery of your car key fob is depleted by the fact that the LED light will stop glowing. The fob might also stop working from the same distance it used to. In this instance it might be necessary to re-program the key fob or replace it altogether.
It is easy to replace a car keyfob battery. Find out the type of battery used. The type of battery should be stamped on the back of your key fob. If you're not sure then a quick Google search can help. Unlock the key fob along the seam once you've identified the battery type. key repair 'll need an small screwdriver with a flat head or even your fingernail to split the two halves. Remove the old battery and replace it with a brand new one. Insert the new battery so that the positive (+) face is facing the buttons on the fob.
Some drivers may not realize their fob is dead until they try to lock or unlock their vehicle and the buttons aren't responding. This can be corrected by reprogramming your fob. However, it can be time-consuming and expensive. You can also call roadside assistance to find out whether they can jumpstart your vehicle and get it back on the road.
If you've tried both solutions and your vehicle still won't start, it's time to contact an expert. A certified technician will be able to determine if your car's computer system needs to be reprogrammed or if the fob requires a replacement battery. They can also recommend a reputable auto shop to replace your fob's key. In the end it is not always the case that a new fob is the most effective solution.
Damaged Circuit Board
Key fobs aren't impervious to destruction, 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.
Verify that the battery still working on your key fob. If it is replaced, determine if this fixes the issue. If not, you'll have to remove the key fob and clean the contact surfaces. This can be a challenge because some key fobs don't have easy-release mechanisms to unlock them and you may damage your fob if you attempt to break it. You can purchase a specific tool for opening your key fob. But, you must adhere to the guidelines of the manufacturer to avoid damaging it.
Another issue that is common is a damaged or damaged circuit board in the key fob. This could be due to various factors, including dirt or moisture getting into the battery compartment. Issues with software or an unintentional firmware update may be the cause of this. If your key fob has stopped functioning completely, you should consider having it reprogrammed by a locksmith that specializes in this kind of work.
Radio interference is another possible cause. It could happen if are other wireless devices transmitting on the same frequency your key fob, such radar detectors or home security systems. If this is the situation you need to contact the other device manufacturer to ensure that your key fob won't be affected by their signals.
It's also possible that your key fob is equipped with a bad switch or other electrical component that should be replaced. There are online guides that will show you how to fix this yourself. Be careful, however, as the circuit board inside your key fob is small and can easily break when handled rough. If you do this yourself, be certain to use a top quality SMT switch and solder it into place properly.
Buttons that are worn out
Car key fobs are prone to quite a bit of wear and tear. They are more prone to being lost and spend a significant amount of time being tossed around in your purse or pocket. Sometimes, this jostling can cause the buttons to wear out or become stuck. When this happens, a simple adjustment may be all it takes to make it work again.
Modern key fobs are equipped with sensors that can detect when they've been pressed. They're designed to detect this because they can help lower the risk of thieves stealing your car. If the buttons on your key fob aren't responding when pushed this is a sign that they're worn out and require to be replaced.
Key fobs also have an internal circuit board which transmits signals to your car. These signals include commands to unlock and lock your car, as well as commands to start the engine. If the internal circuit board is damaged, your key fob will not unlock or start your engine. Most of the time, this kind of damage is caused by water, blunt force or something that scratches the circuit board.

You'll be able to tell that the buttons on your key fob are wearing down if you find yourself pressing them harder than usual to get them to function. In addition your fob could stop transmitting a signal to the car, or have a lower range than it did before.
Contact a locksmith immediately in the event that you are not able to use the key fob for your car. They'll be able determine whether the key fob itself is damaged or the ignition cylinder has worn out.
Fortunately, the majority of car keyfob problems aren't too difficult or serious. The best way to avoid being caught off guard by an issue with your key fob is to have an extra key in your possession at all times. You'll never be caught in the middle due to a malfunctioning or lost key. If you lose your spare key, an expert locksmith can rekey it to work with your car's engine. They can also repair any internal damage to the key fob.
Broken Case
The case for your key fob does more than just protect the buttons and battery. The case also houses the circuitry that does all the electrical magic when you press a key fob button. This board transmits the signal from your key fob to your car.
If the board is damaged or dead your key fob will not be able to operate. Sometimes a dead key fob may need to be reprogrammed which is something your local auto locksmith or the dealership can help you with.
Another reason why your key fob might not be working is that the batteries are dead. This is a simple solution that can be done at home by replacing the battery. You can get the replacement battery from the local auto parts store or on the internet. These batteries are not only intended for key fobs.
Depending on the kind of key fob, there are different ways to open it up and gain access to the inside. You can determine the type of battery your key fob is using by conducting a quick internet search. From there, you can buy the replacement and simply take the old one out, and then the new one in.
When fixing a damaged key fob, the main concern is not to damage the circuit or buttons more. If you attempt to pull off the key fob with a screwdriver or other hard edge, it could break the plastic or break the case. Fortunately, a replacement for the case is inexpensive and you can buy the entire fob and the electronic components from eBay or Amazon for less than $40.
So, if your key fob isn't working, check to see if the batteries are depleted or whether the circuit board has been damaged. If this isn't the situation, a professional could repair it for you quickly and cheaply. If not, it could be time to replace the fob. Be sure to check the warranty of any fob replacement or used that you purchase on the internet.