5 Repair Car Key Lessons From Professionals
How to Repair Car Key Fobs

Key fobs can become damaged, even if we use them a lot. In fact, they are able to break down in a variety of ways.
Other issues can be more grave than a dead battery. Fortunately, many of them can be resolved with a quick DIY fix at home.
Dead Battery
A dead battery is the main cause of a key fob not working. Fob batteries drain quickly, especially if they're exposed to extreme temperatures, humidity, or water. It's a good idea to keep an additional fob battery in your wallet in case.
The LED light will generally stop glowing when the battery in your car key fob is running low. The key fob could be unable to function from the same distance it used to. In this scenario it could be necessary to reprogram the key fob or replace it completely.
Fortunately replacing the battery in a car key fob is easy. First, find out what kind of battery is used. The type should be embossed on the side of the fob. Google can help you when you're not sure. Open the key fob along the seam after you've identified the type of battery. You will need to use a small flathead screwdriver or even your fingernail pry the two halves apart. Take the old battery out, and replace it with a brand new one. Be sure to insert the new battery with the positive (+) side facing upwards towards the buttons in the fob.
Some drivers don't realize that their fob is dead until they lock or unlock their car, and the buttons no longer work. This can be fixed by reprogramming your fob. However it can be costly and time-consuming. You can also contact roadside assistance to find out whether they are able to jumpstart your vehicle and get it back on the road.
If you've tried all the options and your car still doesn't start, it's time to contact an expert. A qualified technician can determine if your car's computer needs reconfiguring, or if your key fob simply needs a new battery. They can also suggest an auto shop that will replace the fob that you use to access your car. Sometimes an entirely new fob could be the best solution.
Damaged Circuit Board
Key fobs aren't indestructible, but it is able to withstand a lot of physical harm. The circuit board, battery and buttons are all susceptible to wear and wear and tear. It is crucial 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. If it is then replace the battery and check if it fixes your issue. If this doesn't work, you may need to open the fob and clean the contact surfaces. It isn't easy to open some key fobs since they don't have an easy release mechanism. You can harm your fob by trying force it apart. You can purchase a special tool to open your key fob, but you should always follow the instructions of the manufacturer to avoid damaging it.
A damaged or corrupted key circuit board for the fob is another frequent issue. It can be caused by many things, such as moisture or dirt that gets into the battery compartment software problems or even an unintentional firmware update. If your key fob isn't working, you may want to consider getting it reprogrammed. This can be done by a locksmith who is skilled in this type of work.
Radio interference is also a possibility. This could happen in the event that you have other wireless devices around that transmit at the same frequency, like radar detectors or home security systems. If remote key fob repair is the case, you should check with the other manufacturers of the device to ensure that your key fob isn't being affected by their signals.
It's also possible that your key fob may have an issue with the switch or another electrical component that must be replaced. This is a difficult fix, but you can find online guides that will show you how to fix it yourself. You should be careful to be careful, however, since the circuit board in the key fob is tiny and could easily break if handled roughly. If you do this yourself, be certain to use a top quality SMT switch and then solder it into place properly.
Buttons that are worn out
Car key fobs are prone to quite a bit of wear and wear and tear. They're susceptible to being dropped, and they often spend a lot of time jostled around in your pocket or purse. Sometimes, this jolting can cause buttons to wear out or stuck. In this case, a simple adjustment may be all it takes to restore the button's functionality.
Most modern key fobs have sensors on them that tell 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 work when pressed, they are damaged and should 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 instructions to start the engine. If the circuit board inside is damaged, then your key fob may not allow you to unlock or start your engine. Generally, this kind of damage is caused by water, blunt force, or something scratching the circuit board.
You'll be able to tell that the buttons on your key fob are deteriorating if you find yourself pressing the buttons more than normal to get them to work. Your fob could also stop sending a signal to your vehicle or have a shorter range.
If you're unable get your key fob to unlock or start your vehicle, it's crucial to find a locksmith in your area immediately. They'll be able to tell whether the key fob itself is damaged or your ignition cylinder has worn down.
Fortunately, the majority of car key fob problems aren't serious or complicated. The best way to ensure you don't get surprised by an unresponsive key fob is to have a spare in your possession at all times. You'll never be caught in the middle because of a malfunctioning or lost key. If you have lost your spare key, a professional locksmith can reset it to work with your car's engine. They can also repair any internal damage to your key fob.
Broken Case
The case for your key fob is more than just a place to store the buttons and battery. The case also houses the circuitry that performs all the electrical magic when you press the key fob button. The circuit board relays the signal from your key fob to your car.
If this board is damaged or dead the key fob won't be able to operate. A dead key fob might require reprogramming by your local auto locksmith or dealer.
Batteries could be the cause the key fob's not working. This is a simple solution that can be done at home by replacing the battery. You can purchase the replacement battery from the local auto parts store or online. These batteries are not only intended for key fobs.
Depending on the kind of key fob, there are different ways to open it up and access the insides. You can find out what type of battery your key fob uses by conducting a quick internet search. You can then buy an alternative and take the old one out, and put the new one into.
The most important thing to consider when fixing an old car key fob is that you don't want to harm the circuit board or buttons further. If you attempt to pry apart the key fob using an instrument like a screwdriver or any other sharp edge, it could break the plastic or damage the case. Fortunately, a replacement for the case is cheap and you can purchase a whole fob assembly with the electronics from eBay or Amazon for less than $40.
If your key fob doesn't work, check if you have damaged the circuit board or batteries. If this isn't the situation, you can get it repaired quickly and cheaply by an expert. If not, it may be time to replace the fob. Make sure you check for a warranty on any replacement or used fobs that you purchase online.