This Is The History Of Repair Car Key In 10 Milestones How to Repair Car Key Fobs

Key fobs are susceptible to damage, even if we use them a lot. In fact, they are able to be destroyed in a variety of ways.

Other issues could be more serious than an unresponsive battery. Fortunately, the majority of these can be fixed by a simple DIY fix at home.

Dead Battery

A dead battery is the most frequent reason for the key fob not functioning. Fob batteries tend to drain quickly, particularly if they are exposed or humid temperatures or even water. It's a good idea to keep an extra battery in your wallet just in case.

You will usually know when the battery of your car key fob is dying by the fact that the LED light will cease to blink. The fob may also stop working at the same distance it used to. In this scenario the key fob might require reprogramming or replaced completely.

It is easy to replace the battery in a car keyfob. First, determine what type of battery is used. The type of battery you are using should be stamped on the side of your key fob. If you're not sure then doing a quick Google search will help. Once you have found the kind of battery you want, open the key fob near the seam. Make use of a flathead screwdriver or even your fingernail to separate the two halves. Take the old battery out, and replace it with a brand new one. Make sure you insert the new battery with the positive (+) side facing towards the buttons in the fob.

Some drivers might not be aware that the fob is dead until they try to lock or unlock their car and the buttons do not respond. In some cases this issue can be resolved by reprogramming the fob but that can be costly and time-consuming. You can also call roadside assistance to see whether they are able to start your vehicle and get it back on the road.

If you've tried all three of these methods but your car won't start, then it's time for a professional. A certified technician can determine whether your car's computer system needs to be reprogrammed or the fob simply requires an upgrade in battery. They will also suggest a reputable auto shop to replace your key fob. Sometimes, however, a new fob might be the best solution.

Circuit Board Damage

A key fob can take many physical abuses and is not indestructible. The battery, the circuit board and buttons will all experience their fair amount of wear and tear with time, so it's important to be aware and take care of them in order to keep your car key fob functioning efficiently.

The most straightforward thing to do is that the battery in your key fob isn't depleted. Replace the battery to see if it solves your problem. If not, you'll need to open the key fob and clean the contact surfaces. It isn't easy to open some key fobs since they don't have an easy-release mechanism. You could damage your fob by trying take it apart. You can purchase a specific tool to open your key fob, but you must always follow the instructions of the manufacturer to avoid damaging it.

A damaged or corrupted key circuit board for the fob is another common problem. This could be due to numerous factors, such as moisture or dirt getting into the battery compartment. Software issues or an accidental firmware update can also cause this. If your key fob isn't functioning, you might think about getting it changed. This can be accomplished by a locksmith who is skilled in this kind of work.

Radio interference is a different possibility. This can occur in the event that you have other wireless devices that transmit at the same frequency, for example, radar detectors or home security systems. If this is the case, check with the other manufacturers of your device to ensure that your key fob isn't affected by their signals.

It's also possible that your key fob has an unreliable switch or electrical component that needs to be replaced. This is a harder fix, but you can find online guides that will show you how to fix it yourself. Be careful when doing this, however, because the circuit board in your key fob is very small and is prone to breaking when handled rough. If you decide to do this yourself, make certain to use a top quality SMT switch and solder it in place correctly.

Worn Out Buttons

Car key fobs are subject to a lot wear and wear and tear. They are prone to being dropped and often are frequently moving around in your pocket or purse. The constant jostling can cause buttons to wear out or become stuck. In this case, a simple adjustment may be all that's needed to make it work again.

Modern key fobs are fitted with sensors that detect when they've been hit. They're made to do this because they can help reduce the likelihood of someone stealing your car. If your key fob's buttons aren't responding when pushed it's a sign that they're worn-out and need to be replaced.


Key fobs also contain an electronic circuit inside that transmits signals to the car. These signals include commands to unlock and lock your car, and commands to start your engine. If the circuit board inside your vehicle is damaged, then your key fob may not be able to unlock your vehicle or even start the engine. This kind of damage is typically caused by water or blunt force.

If you're forced to press the buttons harder than usual in order to get them to function If this is the case, then your fob's buttons are becoming worn out. In addition, your fob may stop sending a signal to the car or it'll have less range than before.

If you're unable unlock your key fob, unlock or start your vehicle, it's crucial to find a locksmith near you immediately. They can determine if your key fob is damaged or if the cylinder in your ignition is worn out.

Fortunately, the majority of car keyfob issues aren't very complicated or even serious. Keep a spare key fob in your vehicle always in case you end up being surprised by a malfunctioning one. You'll never be caught in the middle because of an issue with your key or a lost one. If you lose your spare key a professional locksmith can rekey it to work with your vehicle's engine. They'll also be able fix any internal damage that's been caused to the key fob.

Broken Case

The case of a key fob does more than just protect the batteries and buttons. The case also houses the circuitry that does all the electrical magic every time you press a key fob button. This board transmits the signal from your key fob to your car.

If this board is damaged or dead, your key fob won't be able to function. A dead key fob may only need to be reprogrammed by your local auto locksmith, or dealer.

Another reason your key fob may not be working is because the batteries are dead. This is a quick solution that can be done at home by replacing the battery. You can purchase the replacement battery from your local auto parts shop or online. These batteries are not only for key fobs.

Depending on the kind of key fob, there is different ways to open it up and get inside. repair car key fob should reveal what kind of key fob you have and the type of battery it uses. You can then purchase a new one, take the old one out and put the new one into.

When fixing a damaged key fob, the most important concern is not to damage the circuit or buttons in any way. If you attempt to pry off the key fob with a screwdriver or other hard edge, it could crack the plastic or break the case. A replacement case is inexpensive and you can buy an entire fob, including the electronics on eBay or Amazon for less than $40.

If your key fob doesn't work, you should check if you have damaged the circuit board or batteries. If this is not the situation, you can get it repaired quickly and inexpensively by an expert. In the event that it isn't, it's time to consider a replacement. Just be sure to check for a warranty on any used or replacement fobs that you purchase online.