15 Shocking Facts About Repair Car Key The Words You've Never Learned How to Repair Car Key Fobs

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

Other issues could be more serious than the battery being dead. Fortunately, the majority of these issues can be solved by making a quick DIY fix at home.

Dead Battery

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

It is easy to tell when your car key fob's battery is dying because the light on the LED will cease to glow. It's also possible that your key fob won't work from the same distance as it used to. In this case, it may be necessary to re-program your key fob or replace it completely.

It is easy to replace a car keyfob battery. Find out the type of battery used. The type of battery should be engraved on the side of the fob. If you are not sure it is, doing a quick Google search will be helpful. Open the key fob along the seam after you have identified the type of battery. Utilize a flathead screwdriver or your fingernail to separate the two halves. Then, take out the old battery and insert an alternative one in its place. Insert the new battery so that the positive (+) face is facing the buttons on the fob.

Some drivers don't realize that their fob has died until they lock or unlock their car, and the buttons no longer work. In some instances this problem can be resolved by reprogramming the fob, but that can be costly and time-consuming. Another option is to contact roadside assistance and ask them to jump your car and get you back on the road.

If you've tried both solutions but your vehicle doesn't start, it's the right time to speak with a professional. A qualified technician can determine if your car's computer needs reprogramming, or if the fob simply needs a new battery. They can also suggest an auto shop to replace the fob that you use to access your car. In the end, sometimes a brand new fob is the best solution.

Damaged Circuit Board

The key fob isn't indestructible, 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 ensure your key fob remains in good condition.


Make sure that the battery still functioning on your key fob. Replace the battery to determine if it resolves the issue. If not, you'll have to remove the key fob and clean the 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 may harm your device if you attempt to break it. You can buy a special tool to open your key fob, but you should always follow the manufacturer's instructions to avoid damaging it.

A damaged or defective key fob circuit board is another common problem. This can be caused by many things, such as dirt or moisture getting into the battery compartment software problems or even an accidental firmware update. If your key fob is not functioning, you might be interested in having it changed. This can be accomplished by a locksmith who is skilled in this type of work.

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

It's also possible that your key fob may have an unreliable switch or electrical component that must be replaced. This is a difficult fix however, you can find guides online that explain how to fix it yourself. You should be careful when doing this, however, because the circuit board in your key fob is very small and is prone to breaking if handled with care. If you're doing this yourself, be certain to use a top quality SMT switch and solder it to the correct place.

Worn Out Buttons

Car key fobs are prone to a lot of wear and tear. They are susceptible to being dropped and spend a lot time being tossed around in your pocket or purse. This jostling can sometimes cause the buttons to wear out or get stuck. When this happens, 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 tell if they've been pressed. They're designed to do this to decrease the chance of thieves stealing your car. If the buttons on your key fob aren't responding when pressed, they are worn out and need to be replaced.

The circuit board that is in the key fob also sends signals to your car. These signals include commands to unlock and lock your car, as well as commands to start your engine. If the internal circuit board is damaged, your key fob will not allow you to unlock or start your engine. This type of damage is usually caused by water or blunt force.

If you're having to press the buttons harder than normal to get them to function If this is the case, then your key fob's buttons are becoming worn out. In addition your fob could stop transmitting a signal to the car or have less range than before.

Contact a locksmith immediately if you are not able to use your key fob to access your vehicle. They can determine if your key fob is damaged, or if your ignition cylinder is worn out.

Luckily, most key fob issues in cars aren't a major or difficult issue. The best way to avoid being caught off guard by an issue with your key fob is to keep a spare in your possession at all times. This will ensure that you're not stuck in a bind because of a lost or malfunctioning key. If you lose your spare key, an expert locksmith can rekey it to work with your vehicle's engine. They'll also be able to fix any internal damage that's occurred on your key fob.

Broken Case

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

Your key fob won't function if the board is damaged. Sometimes, look at more info that is dead can be reset which is something your local auto locksmith or dealership can help you with.

Another reason why your key fob might not be functioning is that the batteries are dying. This is a simple fix that you can do at home by replacing the battery. You can get an alternative battery at your local auto parts shop or on the internet. These batteries aren't only intended for key fobs.

There are a variety of ways to open up a key fob and get inside it, depending on the type. You can find out what kind of battery your key fob has by doing a quick online search. From there, you can purchase a replacement and easily pop the old one out and put the new one in.

The main concern when you repair an old car key fob is that you don't want to damage the circuit board or buttons any further. If you attempt to pry off the key fob with an instrument like a screwdriver or any other sharp edge, it could break the plastic or break the case. Fortunately, a replacement case is inexpensive and you can buy an entire fob with the electronic components from eBay or Amazon for less than $40.

If your key fob doesn't function, make sure you have damaged the circuit board or the batteries. If this isn't the case, you can have it repaired quickly and easily by an expert. If not, it may be time to replace the fob. Be sure to check the warranty of any replacement or used fobs that you purchase on the internet.