How to Repair Car Key Fobs
Key fobs are susceptible to damage even if we use them frequently. In fact, they are able to be destroyed in a variety of ways.
Other issues could be more important than an unresponsive battery. Luckily, most of them can be resolved with a quick DIY fix at home.
Dead Battery
A dead battery is the most common reason for a key fob not working. Fob batteries can deplete quickly, especially if they are exposed to hot or humid temperatures, or water. Keep an extra battery in your wallet in case you need it.
The LED light will usually stop blinking when the battery in the car key fob is low. It is also possible that the fob will no longer work at the same distance it used to. In this case the key fob might need to be programmed again or replaced completely.
Fortunately replacing the car key fob battery is easy. Find out the type of battery used. The type should be embossed on the side of the fob. Google can help if you're not sure. Once you've found the battery type you want to use, open the key fob at the seam. You'll need a small flathead screwdriver or your fingernail to pry the two halves apart. 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 may not be aware the fob is dead until they attempt to lock or unlock their vehicle and the buttons do not respond. In some instances, this can be solved by reprogramming the fob, but that can be costly and time-consuming. You can also contact roadside assistance to determine whether they can restart your car and get it back on the road.
If you've tried all the options but your vehicle doesn't start, it's time to call an expert. A certified technician can determine if your vehicle's computer system requires reprogramming or if the fob needs a new battery. They can also recommend a reliable auto repair shop to replace your fob's keys. Sometimes it is possible that a new fob may be the best solution.
Circuit Board Damage

Key fobs can withstand a lot of physical abuse and is not indestructible. The battery, circuit board, and buttons all get their fair amount of wear and tear over the course of time and it's crucial to be on guard and take care of them in order to keep your car key fob working well.
The easiest thing to check is to make sure the battery in your key fob isn't depleted. If it is, replace the battery and check if it fixes your problem. If this does not work, you may need to open the fob and clean its contact surfaces. This can be tricky since some key fobs do not have easy-release mechanisms to unlock them and you may damage your fob if you try to pull it apart. You can buy a tool for opening your key fob. But, you must adhere to the guidelines of the manufacturer to avoid damaging the.
A damaged or damaged key circuit board for the fob is another common problem. It can be caused by a number of things like dirt or moisture that gets into the battery compartment software problems or even an accidental firmware update. If your key fob isn't working completely, think about having it reprogrammed with an expert locksmith who specializes in this kind of work.
Radio interference is another possibility. It could happen if are other wireless devices transmitting on the same frequency your key fob, for instance radar detectors, home security systems. If this is the case you need to contact the manufacturer of the other device to ensure that your key fob will not be affected by their signals.
You may also need to replace a switch or other electrical component of your key fob. You can find online guides that help you fix this yourself. You should be careful when doing this, however, because the circuit board in the key fob is tiny and is prone to breaking if handled with care. If you're doing this yourself, be sure to use a high quality SMT switch and solder it to the correct place.
Buttons that are worn out
Car key fobs can suffer quite a bit of wear and wear and tear. They are prone to being dropped and are frequently jostled around in your purse or pocket. This jostling can sometimes cause buttons to wear out or become stuck. When this happens an easy adjustment could be all it takes to get it working again.
The majority of modern key fobs have sensors on them that can detect if they've been pressed. This is because they reduce the possibility of someone taking your vehicle. If the buttons on your key fob don't respond when pressed, they are worn out and should be replaced.
The circuit board inside the key fob also sends signals to your car. These signals include commands to unlock and lock your car, and commands to start the engine. If the circuit board inside your vehicle is damaged, the key fob you have may not allow you to unlock your car or start the engine. This kind of damage is usually caused by water or blunt force.
You'll notice that the buttons on your key fob are wearing down when you press the buttons more than usual in order to get them working. Additionally the fob might cease transmitting signals to the car or have less range than it did prior to.
If you're unable to get your key fob to unlock or start your car, you need to contact an emergency locksmith in your area. They'll be able to determine whether the key fob is damaged or the ignition cylinder is worn out.
Fortunately, most car keyfob problems aren't complicated or serious. Keep an extra key fob in your car always in case you end up being shocked by a malfunctioning one. This will ensure that you're not stuck in a bind due to an unreliable or lost 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 the key fob.
Broken Case
The case of the key fob does more than protect the buttons and batteries. It also houses the circuit board responsible for doing all of the electrical magic when you press the button on your key fob. The circuit board relays the signal from your key fob to your car.
Your key fob will not function if the board is damaged. Sometimes a dead key fob can be reset which is something that your local auto locksmith or dealership can assist you with.
Another reason why your key fob may not be working is because the batteries are dying. The battery can be replaced at your home. The good news is that you can locate a replacement battery on the internet or at your local auto parts shop since these batteries are not exclusive to key fobs.
There are car key fob repairs near me of ways to open a key fob to get inside, based on the kind. A quick search on the internet will reveal what kind of key fob you have and the type of battery it takes. You can then purchase a new one, take the old one out and then insert the new one into.
When repairing a broken key fob, the most important concern is not to destroy the circuit or buttons in any way. If you try to pry away the key fob with an instrument like a screwdriver or any other sharp edge, it could crack the plastic or damage the case. Luckily, a replacement case is cheap and you can buy an entire fob with the electronics on eBay or Amazon for less than $40.
If your key fob doesn't work, you should check if you've damaged the circuit board or the batteries. If this is not the case, you can have it repaired quickly and easily by a professional. In the event that it isn't, it's time to invest in an upgrade. Be sure to look for a warranty on any replacement or used fobs you purchase on the internet.