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What Repair Car Key Is Your Next Big Obsession
How to Repair Car Key Fobs

Although we use them many a times, key fobs are not impervious to destruction. They are able to break down in a variety of ways.

Other issues can be more serious than the battery being dead. Luckily, most of these issues can be solved by making 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. It is a good idea to keep an extra fob battery in your wallet in case.

It is easy to tell the moment the battery of your car key fob is depleted because the LED light will stop glowing. Learn Alot more might also stop working at the same distance it was previously working to. In this scenario the key fob might require reprogramming or replaced entirely.

It is simple to replace a car keyfob battery. First, you need to determine the kind of battery is being used. The type should be engraved on the side of the fob. If you're unsure then an easy Google search will help. Once you've found the battery type and the key fob, you can open it at the junction. Use a flathead screwdriver, or your fingernail to separate the two halves. Remove the old battery and replace it with a 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 car and the buttons don't respond. In some instances this issue can be resolved by reprogramming the fob however, it can be costly and time-consuming. You can also contact roadside assistance to determine whether they are able to start your car and get it back on the road.


If you've tried all of these options and your car is still unable to start then it's time for an expert. A trained technician can tell whether your car's computer requires reconfiguring, or if your key fob only requires an upgrade in battery. They will also suggest a reputable auto shop to replace your key fob. In the end, though sometimes, a brand new fob is the best solution.

Damaged Circuit Board

A key fob can take a lot of physical abuse and is not impervious to destruction. The battery, the circuit board, and buttons all get their fair amount of wear and tear over time and it's crucial to be aware and take care of them to ensure that your car key fob functioning well.

The easiest thing to check is to ensure that the battery inside the key fob isn't dying. If it is, replace the battery and determine if this fixes the problem. If this doesn't work, you might need to open the fob and clean the contact surfaces. It isn't easy to open some key fobs since they do not have an easy-release mechanism. You could cause damage to your fob by trying to force it apart. You can purchase a specific tool to open your key fob, but it is recommended to follow the instructions of the manufacturer to avoid damaging it.

Another common problem is a damaged or corrupted circuit board on the key fob. It can be caused by many things like dirt or moisture that gets into the battery compartment, software issues or even an unintentional firmware update. If your key fob has stopped working completely, think about having it reprogrammed with a locksmith that specializes in this type of work.

Radio interference is a different possibility. It could happen if are other wireless devices transmitting on the same frequency your key fob, for instance a radar detectors and home security systems. If this is the case, you should inquire with the other device manufacturers to make sure that your key fob's signal isn't affected by their signals.

It's also possible that your key fob has an unreliable switch or electrical component that must be replaced. This is a difficult fix however, there are guides online that explain how to do it yourself. You should be careful to be careful, however, since the circuit board inside your key fob is very small and can easily break if handled roughly. If you decide to do this yourself, be sure to use a high quality SMT switch and solder it to the correct place.

In a state of wear Out Buttons

Car key fobs are susceptible to a lot of wear and wear and tear. They are prone to getting lost and spend a significant amount of time being tossed around in your pocket or purse. Sometimes, this can cause the buttons to wear out or stuck. Simple adjustments can resolve 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 lower the risk of someone stealing your car. If your key fob's buttons don't respond when pushed this is a sign that they're worn-out and need to be replaced.

Key fobs also contain an electronic circuit inside that sends signals to the car. The signals include unlock and lock commands and also commands to start your engine. If the circuit board within your vehicle is damaged, your key fob may not allow you to 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.

If you have to press the buttons harder than normal to activate them, then your fob's buttons are becoming worn out. Additionally your fob could stop transmitting a signal to the car or it'll have a lower range than it did before.

Contact a locksmith immediately when you're unable to use your key fob to access your car. They'll be able determine whether the key fob is damaged or the ignition cylinder has 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 left stranded somewhere due to a lost or malfunctioning key. If you do lose your car key spare A locksmith can reset it to ensure it is compatible with the ignition of your car. They can also fix any internal damage to the key fob.

Broken Case

The case of your key fob provides more than just protection for the buttons and battery. The case also houses the circuitry that executes all the electrical magic when you press a key fob button. The circuit board receives the signal from your key fob, and then transmits it to your car.

If the board is damaged or dead the key fob won't be able to operate. A dead key fob may require reprogramming by a local auto locksmith or dealership.

Batteries could be the reason the key fob's not working. This is a simple solution that can be done at home by replacing the battery. The positive side is that you can get an alternative battery online or at your local auto parts store since the batteries aren't limited to key fobs.

There are several ways to open the key fob and go inside it, based on the kind. You can find out what type of battery your key fob is using by doing a quick online search. You can then purchase a new one, take the old one out and put the new one into.

The main concern when you repair a broken car key fob is that you don't want to damage the circuit board or buttons further. If you attempt to pull apart the key fob using a screwdriver or other hard edge, it can crack the plastic or break the case. A replacement case isn't much and you can find the entire fob including the electronic components on eBay or Amazon for under $40.

If your key fob doesn't work, check if you have damaged the circuit board or the batteries. If this isn't 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 to verify the warranty of any fob replacement or used that you purchase on the internet.

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