How to Repair Car Key Fobs

Although we put them through numerous times, key fobs are not indestructible. In fact, they could be destroyed in a variety of ways.

The most frequent issue is an unresponsive battery but other issues can be much more serious. The majority of these issues can be solved with a simple fix at home.

Dead Battery

A dead battery is likely the most frequent reason the car key fob stops functioning. Fob batteries drain quickly, especially if they're exposed to extreme temperatures, humidity or water. It's a good idea keep an extra fob battery in your wallet just in case.

You can usually tell the moment your car key fob's battery is depleted because the light on the LED will cease to blink. The key fob could also stop working from the same distance it used to. In this scenario the key fob could need to be reprogrammed or replaced entirely.

Fortunately the replacement of a car key fob battery is easy. First, you need to determine the kind of battery is being used. The type of battery should be embossed in the side of your key fob. If you're unsure it is, an easy Google search can help. Once you've identified the type of battery, open the key fob near the seam. You'll need a small flathead screwdriver or even your fingernail to split the two halves. Remove the old battery and replace it with a brand new one. Place the new battery in such a way that the positive (+) face is facing the buttons on the fob.

Some drivers might not be aware that their fob is dead until they try to lock or unlock their vehicle and the buttons do not respond. In some cases, this can be solved by reprogramming the fob, however, it can be costly and time-consuming. Another option is where to repair car key remote call roadside assistance and ask them to jump your car and get you back on the road.

If you've tried all three of these methods and your car still won't start, then it's time for an expert. A trained technician can tell the computer in your car needs reconfiguring, or if your key fob only requires an upgrade in battery. They will also suggest a reputable auto shop to replace your fob's key. Sometimes, however, a new fob may be the best solution.

Circuit Board Damage

A key fob is able to withstand some physical abuse and is not indestructible. Battery, circuit board and buttons are all susceptible to wear and wear and tear. It is essential to take care of these parts to ensure your key fob remains in good condition.

Make sure that the battery still working on your key fob. Replace the battery to determine if it resolves your issue. If this doesn't work, you may need to open the fob and clean its contact surfaces. This can be a challenge because some key fobs don't have a release mechanism that is easy to open them and you could end up damaging your key car repair fob if try to pull it apart. You can buy a special tool to open your key fob, however it is recommended to adhere to the manufacturer's guidelines to avoid damaging it.

A damaged or damaged key fob circuit board is a common problem. This can be caused by many things, such as dirt or moisture that gets into the battery compartment, software issues or local even an unintentional firmware update. If your key fob has stopped functioning, you might be interested in getting it reprogrammed. This can be done by a locksmith who specializes in this work.

Radio interference is a different possibility. This could happen if there are other wireless devices operating at the same frequency as your key fob, for instance a radar detectors and home security systems. If this is the case, you should get in touch with the manufacturer of the other device to make sure that your key fob will not be affected by their signals.

It's also possible that your key fob may have an issue with the switch or another electrical component that must be replaced. This is a difficult fix, but you can find online guides that will show you how to fix it yourself. Be careful, however, as the circuit board in the key fob is tiny and is prone to breaking when handled rough. If you're doing this yourself, make sure to use an SMT switch that is of high-quality and put the switch in place correctly.

Buttons that are worn out

Car key fobs are susceptible to a lot of wear and tear. They are prone to getting dropped and spend a lot of time being tossed around in your pocket or purse. The jolting can cause the buttons to wear out or become stuck. If this happens it's possible that a simple adjustment will be all it takes to make it work again.

The majority of modern key fobs have sensors on them that can tell if they've been pressed. They're designed to do this to reduce the likelihood of thieves stealing your car. If the buttons on your key fob don't respond when pushed it's a sign that they're worn out and need to be replaced.

The circuit board inside the key fob transmits signals to your car. Those signals include commands to unlock and lock, as well as instructions to start your engine. If your internal circuit board is damaged then your key fob might not be able to unlock your vehicle or start the engine. This type of damage is usually caused by water or blunt force.

If you're forced to press the buttons more than usual in order to make them function, then your fob's buttons are becoming worn out. Additionally the fob might stop sending a signal to the car, or have a lower range than it did before.

If you're unable to get your key fob to unlock or start your car, it's important to contact a locksmith in your area immediately. They'll be able to tell whether the key fob itself is damaged or your ignition cylinder is worn out.

Fortunately, most car key fob issues aren't too serious or complex. Keep a spare key fob in your car at all times to avoid being surprised by a malfunctioning key. This will ensure that you're never left stranded somewhere due to a lost or malfunctioning key. If you do happen to lose your spare car key, a locksmith will be able to change the key so that it works with the ignition of your car. They can also repair any internal damage to the key fob.

Broken Case

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

If this board is damaged or dead your key fob will not be able to function. Sometimes, a key fob that is dead will just need to be reset which is something your local auto locksmith or dealership can help you with.

Batteries could be the reason the key fob's not working. The battery can be replaced at home. You can purchase an alternative battery at your local auto parts shop or online. These batteries are not only for key fobs.

Depending on the kind of key fob, there are various ways to open it and gain access to the inside. You can determine what kind of battery your key fob is using by conducting a quick internet search. From there, you can purchase an alternative and then simply pop the old one out and put the new one in.

When repairing a broken key fob, the primary goal is not to harm the circuit or buttons in any way. If you attempt to pull off the key fob with an instrument like a screwdriver or any other sharp edge, it could break the plastic or break the case. A replacement case isn't expensive and you can buy an entire fob, including the electronic components on eBay or Amazon for less than $40.

So, if your key fob doesn't work look into whether the batteries are depleted or whether the circuit board has become damaged. If this isn't the case, a professional can fix it quickly and inexpensively. Otherwise, it might be the time to purchase an upgrade. Make sure you check the warranty of any replacement or used fobs purchased online.