How to Repair Car Key Fobs
Key fobs can become damaged even if we utilize them a lot. In fact, they can break down in a variety of ways.
While the most common problem is a dead battery but other issues can be more grave. Many of these issues can be resolved by a quick fix at home.
Dead Battery
A dead battery is likely the most common reason why the car key fob stop working. Fob batteries can deplete quickly, particularly if they are exposed to extreme heat or humid temperatures or water. Keep an extra battery in your wallet in case you require it.

It is easy to tell that the battery of your car key fob is dying by the fact that the LED light will stop glowing. It is also possible that the fob won't function from the same distance it did in the past. In this instance, it may be necessary to reprogram the key fob or replace it altogether.
Fortunately the replacement of the battery in a car key fob is easy. Find out the type of battery that is used. The type of battery should be embossed in the side of your key fob. Google can help in case you're unsure. Unlock the key fob across the seam after you have identified the battery type. You'll need an small screwdriver with a flat head or even your fingernail to pry the two halves apart. Remove the old battery and replace it with a new one. Place the new battery in such a way that the positive (+) face is facing 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 don't respond. In some cases this problem can be resolved by reprogramming the fob however, it can be costly and time-consuming. You can also call roadside assistance to determine whether they are able to restart your vehicle and get it back on the road.
If repair car key tried both solutions and your vehicle still won't turn on, it's time to speak with a professional. A trained technician can tell whether your car's computer requires changing its programming, or if the fob is only in need of a new battery. They can also recommend a reliable auto repair shop to replace your key fob. Sometimes an entirely new fob may be the best option.
Damaged Circuit Board
The key fob isn't indestructible, but it is able to endure a lot of physical harm. The battery, the circuit board, and buttons all get their fair share of wear and tear over time, so it's important to be aware and take care of them to keep your car key fob operating efficiently.
The most straightforward thing to do is to ensure that the battery inside your key fob isn't depleted. If it is then replace the battery and check if it fixes your problem. If not, you may have to remove the key fob and clean the contact surfaces. This can be difficult since some key fobs do not have easy-release mechanisms that allow you to unlock them and you may end up damaging your key fob if try to pull it apart. You can purchase a specific tool to open your key fob. But, you must always follow the instructions of the manufacturer to avoid damaging the.
Another common problem is a damaged or corrupted circuit board inside the key fob. It can be caused by many things like dirt or moisture that gets into the battery compartment software, hardware issues, or even an accidental firmware update. If your key fob isn't functioning, you might be interested in getting it replaced. This can be done by a locksmith that specializes in this type of work.
Radio interference is another possibility. This can happen if there are other wireless devices operating on the same frequency as your key fob, like radar detectors or home security systems. If this is the situation, you should contact the other device manufacturer to ensure that your key fob won't be affected by their signals.
It's also possible that your key fob has an unreliable switch or electrical component that needs to be replaced. This is a harder fix, but you can find guides online that show you how to do it yourself. You should be careful, however, as the circuit board that is inside your key fob is small and can easily break if handled with care. If you decide to do this yourself, make certain to use a top quality SMT switch and then solder it into place properly.
Buttons that are worn out
Car key fobs can get a lot of wear and wear and tear. They are prone to being dropped and spend a lot of time jostled around in your purse or pocket. Sometimes, this can cause buttons to wear out or stuck. A simple adjustment can fix the issue.
Modern key fobs come with sensors that are able to detect when they've been press. They're designed to do this because they can help reduce the likelihood of thieves stealing your car. If your key fob's buttons aren't responding when you press them this is a sign that they're worn out and need to be replaced.
The circuit board in the key fob transmits signals to your car. These signals include commands to unlock and lock your car, and instructions to start the engine. If the internal circuit board is damaged, your key fob may not allow you to unlock or start your engine. Most of the time, this kind of damage is caused by water, force blunt, or something scratching the circuit board.
You'll notice that the buttons on your key fob are wearing out if you find yourself pressing them harder than normal to get them to function. In addition the fob might stop transmitting a signal to the car or have less range than it did prior to.
If you're not able to get your key fob to unlock or start your car, it's important to find a locksmith near you immediately. They can determine if your key fob is damaged or if the cylinder in your ignition is worn out.
Fortunately, most key fob issues in cars aren't serious or complicated. Keep an extra key fob in your car at all times to avoid being thrown off by a malfunctioning device. This will ensure that you're not trapped in a place because of a lost or malfunctioning key. If you have lost your spare key, a professional locksmith can reset it to work with your vehicle's engine. They'll also be able to repair any internal damage that may have occurred to the key fob.
Broken Case
A key fob's case does more than just protect the buttons and battery. The case also houses the circuitry that executes all the electrical magic when you press the key fob button. The board transmits the signal from your key fob to your car.
If this board is damaged or dead, your key fob won't be able to function. A key fob that is dead may require reprogramming by your local auto locksmith or dealer.
Another reason your key fob may not be working is because the batteries are dying. This is a quick fix that can be accomplished at home by replacing the battery. The positive side is that you can locate the replacement battery on the internet or at your local auto parts store since these batteries aren't exclusive to key fobs.
There are several ways to open a key fob and get inside it, based on the type. A quick search online should reveal what kind of key fob you have and what kind of battery it requires. You can then purchase a new replacement and pop the old one out, and then insert the new one into.
When fixing a damaged key fob, the main concern is not to destroy the circuit or buttons more. If you attempt to pry apart the key fob using a screwdriver or other hard edge, it could break the plastic or damage the case. Luckily, a replacement case is cheap and you can get an entire fob with the electronics from eBay or Amazon for less than $40.
So, if your key fob isn't working, check to see if the batteries are dead or whether the circuit board has become damaged. If this isn't the case, you can have it repaired quickly and easily by an expert. In the event that it isn't, it's the time to purchase a replacement. Make sure to verify the warranty of any replacement or used fobs that you purchase on the internet.