How to Repair Car Key Fobs
Even though we test them a lot, key fobs are not impervious to destruction. In fact, they are able to be destroyed in a variety of ways.
Other issues can be more grave than the battery being dead. Luckily, most of them can be resolved by a simple DIY fix at home.
Dead Battery
A dead battery is likely the most common reason why a car key fob stops functioning. Fob batteries are prone to draining quickly, especially if they're exposed to extreme temperatures, humidity or water. Keep an extra battery in your wallet in case you require it.
The LED light will generally stop glowing when the battery in the car key fob is low. It's also possible that your key fob will no longer work from the same distance it did in the past. In this scenario, it may be necessary to reprogram the key fob or replace it altogether.
It is easy to replace the battery in a car keyfob. Find out the kind of battery used. The type of battery should be stamped on the side of your key fob. If you're not sure it is, a quick Google search can help. Unlock the key fob along the seam once you have identified the type of battery. Utilize a flathead screwdriver or even your fingernail, to break the two halves. Then, remove the old battery and put an alternative one in its place. Then, 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 aren't responding. This can be fixed by reprogramming your fob. However, it can be time-consuming and expensive. You can also call roadside assistance to determine if they are able to jumpstart your vehicle and get it back on the road.
If you've tried every solution and your car still doesn't turn on, it's time to call an expert. A qualified technician can determine if your car's computer needs reprogramming, or if the fob is only in need of a new battery. They may also recommend an auto shop to replace your key fob. Sometimes it is possible that a new fob could be the best option.
Damaged Circuit Board
Key fobs aren't indestructible, but it is able to withstand a lot of physical harm. Battery, circuit board and buttons are all susceptible to wear and wear and tear. It is essential to take care of these parts to keep your key fob in good condition.
Make sure that the battery still working in your key fob. Replace the battery to see if it solves the issue. If not, you may have to remove the key 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 may harm your fob by trying to take it apart. You can purchase a special tool to open your key fob, however it is recommended to follow the manufacturer's instructions to avoid damaging it.
A damaged or corrupted key circuit board for the fob is another frequent issue. key repairs can be caused by many things, including moisture or dirt getting into the battery compartment. Software issues or even an accident firmware update could also cause this. If key repairs fob isn't functioning, you might be interested in having it changed. This can be done by a locksmith that specializes in this work.
Radio interference is another possibility. This could happen if there are other wireless devices transmitting on the same frequency your key fob, like radar detectors or home security systems. If this is the case, you should check with the other device manufacturers to make sure that your key fob isn't being affected by their signals.
It is also possible to replace a switch or an electrical component inside your key fob. This is a difficult fix, but you can find guides online that explain how to do it yourself. It's important to be careful when doing this, as the circuit boards in your key fob are tiny and are susceptible to breaking in the event of rough handling. If you're doing this yourself, ensure you make use of an SMT switch that is of high-quality and put the switch in the correct position.
In a state of wear Out Buttons
Car key fobs are susceptible to a lot of wear and wear and tear. They're susceptible to being dropped and are frequently being tossed around in your purse or pocket. Sometimes, this jostling can cause the buttons to become worn out or become stuck. If this happens it's possible that a simple adjustment will be all it takes to make it work again.
Modern key fobs come with sensors that can detect when they have been press. This is due to the fact that they decrease the chance of someone else stealing your vehicle. If your key fob's buttons aren't responding when pushed it's a sign that they're worn out and require to be replaced.
The circuit board inside the key fob transmits signals to your car. These signals include commands to unlock and lock your car, as well commands to start your engine. If the internal circuit board is damaged, then your key fob will 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.
If you're forced to press the buttons more than usual in order to get them to function If this is the case, then your key fob's buttons are getting worn out. The fob may also stop sending an alert to your vehicle or have a shorter range.

If you're not able to unlock your key fob, unlock or start your car, it's important to call a locksmith near you immediately. They can tell if the key fob is damaged or if the cylinder of your ignition is worn out.
Fortunately, the majority of car keyfob issues aren't very complicated or even serious. Keep an extra key fob in your car at all times to avoid being thrown off by a malfunctioning key. This will ensure that you're never trapped in a place due to a lost or malfunctioning key. If you lose your spare key a professional locksmith can rekey it to work with your vehicle's engine. They can also repair any internal damage to your key fob.
Broken Case
The case of your key fob provides more than just protection for the buttons and battery. It also houses the circuit board that is responsible for all the electrical magic when you press a button on your key fob. This board receives the signal from your key fob, and then transmits it to your car.
Your key fob will not work if the board is damaged. Sometimes, a key fob that is dead may need to be reset which is something that your local auto locksmith or the dealership can assist you with.
Another reason your key fob might not be working is because the batteries are dying. This is a quick fix that you can do at home by replacing the battery. You can find the replacement battery from the local auto parts store or online. These batteries are not only intended for key fobs.
Depending on the type of key fob you have, there are different ways to open it and get inside. A quick search on the internet will reveal what kind of key fob yours is and what kind of battery it uses. From there, you can buy an alternative and then simply pop the old one out and put the new one in.
When fixing a damaged key fob, the most important concern is not to damage the circuit or buttons in any way. If you attempt to pull off the key fob with the screwdriver or another sharp edge, it could break the plastic or damage the case. Fortunately, a replacement for the case is inexpensive and you can buy an entire fob with the electronic components from eBay or Amazon for less than $40.
So, if your key fob isn't working, check to see if the batteries are depleted or if the circuit board has become damaged. If this is not the situation, you can get it repaired quickly and cheaply by an expert. If not, it may be time to replace the fob. Just be sure to check for a warranty on any used or replacement fobs you buy online.