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How to Repair Car Key Fobs

Even though we use them a lot keys aren't indestructible. In fact, they could break down in many different ways.

Other issues can be more important than a dead battery. Luckily, most of these can be fixed by a simple DIY fix at home.

Dead Battery

A dead battery is probably the most common reason why the car key fob stops functioning. Fob batteries can deplete quickly, especially when they are exposed to extreme heat or humid temperatures, or water. It is a good idea to keep an extra fob battery in your wallet in case.

The LED light will usually stop blinking when the battery in your car key fob is low. The key fob could be unable to function from the same distance it was previously working to. In this case, it may be necessary to re-program the key fob or replace it altogether.

It is simple to replace a car keyfob battery. Find out the kind of battery used. The type should be engraved on the side of the fob. If you are not sure, doing a quick Google search can help. Once you've identified the type of battery and the key fob, you can open it at the seam. Use a flathead screwdriver, or even your fingernail, to break the two halves. Remove the old battery, and replace it with a new one. Make sure to insert the new battery with the positive (+) side facing upwards towards the buttons on the fob.

Some drivers may not be aware the fob is dead until they try to lock or unlock their car and the buttons do not respond. This can be corrected by reprogramming the fob. However, it can be costly and time-consuming. You can also contact roadside assistance to see whether they are able to jumpstart your car and get it back on the road.

If you have tried both of these solutions and your car still won't start and you're not sure why, it's time for an expert. A certified technician can determine if your vehicle's computer system requires reprogramming or the fob simply requires a replacement battery. They will also suggest a reputable auto shop to replace your fob's key. In the end sometimes, a brand new fob is the best solution.

Damaged Circuit Board

mobile key fob repair fobs aren't impervious to destruction, but it can endure a lot of physical damage. Battery, circuit board and buttons are all subject to wear and wear and tear. It is important to take care of these parts to keep your key fob in good working order.

Check that the battery is still working in your key fob. If it is then replace the battery and see if that fixes your issue. If this doesn't work, you may have to open the fob and clean the contact surfaces. This can be a challenge since some key fobs do not have easy-release mechanisms to unlock them and you may harm your device if you try to force it apart. You can buy a special tool to open your key fob, however you should always adhere to the manufacturer's guidelines to avoid damaging it.

A damaged or defective key fob circuit board is another common problem. This can be caused by various factors like dirt or moisture getting into the battery compartment software problems, or even an accidental firmware update. If your key fob isn't working completely, consider having it reprogrammed by locksmiths who specialize in this kind of work.

Radio interference is another possibility. It could happen if are other wireless devices that transmit on the same frequency your key fob, for instance a radar detectors and home security systems. If this is the situation, you should get in touch with the manufacturer of the other device to ensure that your key repair car fob won't be affected by their signals.

It is also possible to replace a switch or other electrical component inside your key fob. This is a difficult fix however, there are guides online that explain How To Repair Car Key Fob to do it yourself. Be careful when doing this, however, because the circuit board in the key fob is tiny and could easily break when handled rough. If you're doing it yourself, be sure to make use of an SMT switch of good quality and solder the switch in place correctly.

Buttons that are worn out

Car key fobs are subject to a lot wear and wear and tear. They're susceptible to being dropped, and they often spend a lot of time moving around in your pocket or purse. Sometimes, this jolting can cause the buttons to become worn out or become stuck. In this case, a simple adjustment may be all that's needed to restore the button's functionality.

Most modern key fobs come with sensors on them that can detect when they've been used. They're made to do this so that they can reduce the likelihood of theft by someone else of your vehicle. If the buttons on your key fob aren't responding when pressed, they are damaged and should be replaced.

The circuit board in the key fob also transmits signals to your car. These signals include commands to unlock and lock your car, as well as commands to start your engine. If the circuit board inside your vehicle is damaged, then your key fob may not unlock your vehicle or even start the engine. This kind of damage is typically caused by blunt force or water.

If you're having to press the buttons more than normal to make them function, then your fob's buttons are getting worn out. In addition your fob could stop sending a signal to the car or have less range than before.

Contact a locksmith immediately in the event that you are not able to use your key fob for your vehicle. They can determine if your key fob is damaged or if your ignition cylinder is worn out.

Fortunately, most car key fob problems aren't too serious or complex. Keep a spare key fob in your remote car key repairs always in case you end up being surprised by a malfunctioning device. You'll never be stranded because of an unresponsive or lost key. Of course, if you do happen to lose your spare car key, a locksmith can help rekey it so that it works with your car's ignition. They can also repair any internal damage to the key fob.

Broken Case

The case of the key fob does more than just shield the buttons and batteries. It also houses the circuit board responsible for all the electrical magic when you hit the button on your key fob. This board transmits 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 dead key fob might require reprogramming by your local auto locksmith, or dealership.

Batteries could be the cause your key fob's battery not working. This is a quick fix that you can do at home by replacing the battery. The good thing is that you can locate an alternative battery on the internet or at your local auto parts store, since the batteries aren't limited to key fobs.

Depending on the kind of key fob, there is different ways to open it and access the insides. You can determine what kind of battery your key fob has by conducting a quick internet search. From there, you can buy a replacement and easily pop the old one out, and then the new one in.

When repairing a broken key fob, the main goal is not to harm the circuit or buttons in any way. If you attempt to pry off the key fob with an instrument like a screwdriver or any other sharp edge, it could crack the plastic or damage the case. Fortunately, a replacement case is cheap and you can purchase an entire fob with the electronic components from eBay or Amazon for less than $40.

If your key fob isn't working look into whether the batteries are depleted or if the circuit board is damaged. If this isn't the case, you can have it repaired quickly and easily by a professional. If not, it could be time to replace the fob. Make sure to verify the warranty on any replacement or used fobs purchased online.