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How to Repair Car Key Fobs

Even though we test them a lot keys are not indestructible. They are able to be destroyed in various ways.

Other issues could be more grave than a dead battery. Luckily, most of them can be resolved with a quick DIY fix at home.

Dead Battery

A dead battery is the main reason for a key fob not working. Fob batteries are prone to draining quickly, particularly if they're exposed to extreme temperatures, humidity, or water. It's a good idea to keep an additional fob battery in your wallet just in case.

You will usually know the moment the battery of your car key fob is dying by the fact that the LED light will stop glowing. The fob may also stop working at the same distance it used to. In this instance the key fob could need to be programmed again or replaced altogether.

Fortunately, Repair car key replacing a car key fob battery is simple. Find out the type of battery that is used. The type should be embossed on the back of the fob. If you're unsure then doing a quick Google search will help. The key fob can be opened along the seam after you have identified the type of battery. You'll need an small screwdriver with a flat head or your fingernail to break the two halves. Then, you can remove the old battery and put the new one in its place. Insert the new battery so that the positive (+) face is facing the buttons on the fob.

Some drivers may not realize the 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 but that can be costly and time-consuming. Another option is to contact roadside assistance and see if they are able to jump your car and get you back on the road.

If you've tried all the options and your car still doesn't start, it's time to contact a professional. A qualified technician can determine if your car's computer system needs to be reprogrammed or if the fob needs a replacement battery. They can also suggest an auto shop that will replace the fob that you use to access your car. In the end, though, sometimes a brand new fob is the best solution.

Damaged Circuit Board

A key fob is able to withstand some physical abuse and is not impervious to destruction. The battery, circuit board buttons, and other components all suffer 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 efficiently.

Check that the battery is still working in your key fob. If it is then replace the battery and determine if this fixes the problem. If not, you might have to remove the key fob and clean the contact surfaces. This can be a challenge since some key fobs don't have easy-release mechanisms that allow you to open them, and you can easily harm your device if you try to force it apart. You can purchase a specific tool to open your key fob, however you must always follow the instructions of the manufacturer to avoid damaging it.

A damaged or damaged key fob circuit board is a frequent issue. It can be caused by a number of things like dirt or moisture that gets into the battery compartment, software issues or even an accidental firmware update. If your key fob has stopped working completely, consider having it reprogrammed by a locksmith that specializes in this kind of work.

Radio interference is another possibility. It could happen in the event that you have other wireless devices that transmit on the same frequency, for example, radar detectors or home security systems. If this is the situation, you should contact the manufacturer of the other device to ensure that your key fob won't be affected by their signals.

It's also possible that your key fob has an issue with the switch or another electrical component that needs to be replaced. This is a harder fix however, there are guides online that explain how to fix it yourself. Be cautious when doing this, however, because the circuit board in your key fob is small and can easily break if handled with care. If you're doing this yourself, be certain to use a top quality SMT switch and solder it into place properly.

In a state of wear Out Buttons

Car key fobs are subject to a lot of wear and tear. They're susceptible to being dropped, and they often are frequently being tossed around in your pocket or purse. This jostling can sometimes cause buttons to wear out or become stuck. When this happens, a simple adjustment may be all that's needed to get it working again.

Modern key fobs are fitted with sensors that are able to detect when they have been hit. This is due to the fact that they decrease the chances of someone stealing your vehicle. If the buttons on your key fob aren't responding when pressed, they are damaged and should 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 remote key repair near me, and instructions to start the engine. If the internal circuit board is damaged, then your key fob might not be able to unlock or start your engine. Typically, this type of damage is caused by water, blunt force, or something scratching the circuit board.

You'll notice that the buttons on your key fob are deteriorating when you press them harder than normal to get them to function. Your fob might also stop sending signals to your car or have a smaller range.

Contact a locksmith immediately when you're not able to use the key fob for your vehicle. They'll be able to tell whether the key fob is damaged or if your ignition cylinder has worn down.

Fortunately, most car keyfob problems aren't complicated or serious. The best way to avoid being taken by surprise by an unresponsive key fob is to keep a spare in your possession at all times. You'll never be caught in the middle due to a malfunctioning or lost key. Of course, if you do lose your car key spare, a locksmith can help reset 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 protect the batteries and buttons. The case also houses the circuitry that does all the electrical magic when you press the key fob button. This board takes the signal from your key fob and transmits it to your car.

If the board is damaged or dead, your key fob won't be able to operate. Sometimes, a key fob that is dead can be reprogrammed which is something your local auto locksmith or dealership can help you with.

Another reason your key fob may not be working is because the batteries are not working. The battery can be replaced at your home. The good news is that you can locate a replacement battery online or at your local auto parts store, since the batteries aren't limited to key fobs.

There are a variety of ways to open a key fob to get inside it, depending on the kind. You can determine the type of battery your key fob uses by conducting a quick internet search. From there, you can purchase the replacement and simply take the old one out and put the new one in.

When fixing a damaged key fob, the most important goal is not to harm the circuit or buttons further. If you attempt to pry off the key fob with the screwdriver or another sharp edge, it can crack the plastic or damage the case. A replacement case is inexpensive and you can buy a complete fob assembly including the electronic components on eBay or Amazon for under $40.

So, if your key fob doesn't work, check to see if the batteries are depleted or whether the circuit board has become damaged. If this isn't the situation, you can get it repaired quickly and inexpensively by a professional. If not, it could be time to replace the fob. Make sure you check for a warranty on any used or replacement fobs you buy online.