How to Repair Car Key Fobs
Key fobs can be damaged even if we use them a lot. They can break down in a variety of ways.
While the most common issue is a dead battery but other issues can be much more grave. Fortunately, the majority of these issues can be solved with a quick DIY fix at home.
Dead Battery
A dead battery is probably the most frequent reason the car key fob stop functioning. Fob batteries can be drained quickly, especially if they're exposed to extreme temperatures, humidity, or water. Keep an extra battery in your wallet in case you need it.
The LED light will typically cease to blink when the battery in the car key fob is running low. It is also possible that the fob won't work from the same distance it used to. In this case it might be necessary to re-program your key fob or even replace it entirely.
Fortunately the replacement of the car key fob battery is a simple task. First, find out what kind of battery is being used. The type should be engraved on the side of the fob. Google can help if you're not sure. Once you've identified the battery type you want to use, open the key fob near the seam. You will need to use an small screwdriver with a flat head or even your fingernail split the two halves. Then, remove the old battery and put a new one in its place. Make sure to insert the new battery with the positive (+) side facing upwards towards the buttons in the fob.
Some drivers don't even realize that their fob is dead until they lock or unlock their vehicle and the buttons stop working. In some cases this issue can be resolved by reprogramming the fob, however, this can be expensive and time-consuming. You can also contact roadside assistance to determine if they are able to start your vehicle and get it back on the road.
If you've tried both solutions but your vehicle doesn't start, it's time to speak with an expert. A trained technician can determine if your vehicle's computer system requires reprogramming or the fob simply requires a replacement battery. They may also recommend an auto shop to replace the key fob. Sometimes, however, a new fob may be the best solution.
Circuit Board Damage
A key fob can take some physical abuse and isn't indestructible. The battery, the circuit board, and buttons all get their fair amount of wear and tear over the course of time and it's crucial to be on guard and take care of them to keep your car key fob functioning efficiently.
The most straightforward thing to do is to ensure that the battery inside your key fob isn't dead. If it is replaced, determine if this fixes the problem. If this doesn't work, you may have to open the fob and clean its contact surfaces. It can be difficult to open certain key fobs since they don't have an easy release mechanism. You could cause damage to your fob by trying to take it apart. You can purchase a special tool for opening your key fob. But, you must adhere to the guidelines of the manufacturer to avoid damaging the.
Another common problem is a damaged or corrupted circuit board in the key fob. This can be caused by many things, such as dirt or moisture getting into the battery compartment software problems or even an unintentional firmware update. If your key fob isn't working completely, you should consider having it reprogrammed by a locksmith that specializes in this kind of work.
Radio interference is another possibility. This can happen if there are other wireless devices operating on the same frequency as your key fob, such radar detectors or home security systems. If this is the case you must contact the other device manufacturer to make sure that your key fob will not be affected by their signals.
There may be a need to replace a switch or an electrical component inside your key fob. You can find online guides that will show you how to fix this yourself. You should be careful, however, as the circuit board in your key fob is small and could easily break if handled with care. If you do this yourself, be sure to use a high quality SMT switch and solder it in place correctly.
Buttons that are worn out

Car key fobs are subject to a lot wear and wear and tear. They are susceptible to being lost and spend a significant amount of time being tossed around in your purse or pocket. The jolting can cause buttons to wear out or get stuck. When this happens, a simple adjustment may be all that's needed to make it work again.
Modern key fobs come with sensors that are able to detect when they've been press. This is because they lower the chances of someone stealing your vehicle. If the buttons on your key fob don't work when you press them, they're damaged and should be replaced.
The circuit board that is in the key fob also sends signals to your car. These signals include commands to unlock and lock your car, and commands to start your engine. If your internal circuit board is damaged, your key fob may not allow you to unlock your car or start the engine. This type of damage is typically caused by water or blunt force.
You'll be able to tell that the buttons on your key fob are wearing out If you're finding yourself pressing more than normal in order to get them working. Additionally the fob might cease transmitting signals to the car, or have less range than it did prior to.
Contact a locksmith right away if you are not able to use your key fob for your car. repair car keys near me can determine if your key fob is damaged or if your ignition cylinder is worn out.
Fortunately, most car keyfob problems aren't too difficult or serious. Keep a spare key fob in your car always in case you end up being thrown off by a malfunctioning device. This will ensure that you're not stuck in a bind due to an unreliable or lost key. Of course, if you do lose your spare car key, a locksmith can help reset it to ensure it is compatible with the ignition of your car. They'll also be able to fix any internal damage that's occurred to the key fob.
Broken Case
The case of the key fob is more than just shield the batteries and buttons. The case also houses the circuitry that performs all the electrical magic every time you press the button on your key fob. This board receives the signal from your key fob and sends it to your car.
If this board is damaged or dead, your key fob won't be able to operate. A dead key fob might only need to be reprogrammed by your local auto locksmith, or dealership.
Another reason your key fob might not be working is because the batteries are not working. The battery can be replaced at your home. You can purchase a replacement battery at your local auto parts shop or online. These batteries are not only intended for key fobs.
There are many ways to open up the key fob and go inside it, depending on the type. You can determine the kind of battery your key fob has by doing a quick online search. From there, you can purchase a replacement and easily pop the old one out and the new one in.
The biggest concern when repairing an old car key fob is that you don't want to cause damage to the circuit board or buttons further. If you attempt to pry apart the key fob using the screwdriver or another sharp edge, it could break the plastic or damage the case. Luckily, a replacement case isn't expensive and you can purchase the entire fob and the electronics from eBay or Amazon for less than $40.
If your key fob doesn't work, you should check if you've damaged the circuit board or batteries. If this is not the case, you can have it repaired quickly and cheaply by an expert. Otherwise, it might be the time to purchase a replacement. Make sure you check the warranty on any replacement or used fobs that you purchase online.