How to Repair Car Key Fobs
Although we test them numerous times keys aren't indestructible. In fact, they are able to break down in many different ways.
The most frequent issue is the battery being dead but other issues can be more grave. Luckily, most of these can be fixed by making a quick DIY fix at home.
Dead Battery
A dead battery is probably the most frequent reason the car key fob stops working. Fob batteries can deplete quickly, especially when they are exposed or cold temperatures, humidity or even water. It's a good idea to keep an extra battery in your wallet in case.
It is easy to tell that your car key fob's battery is dying because the light on the LED will cease to blink. It's also possible that the fob won't function at the same distance it used to. In this instance it could be necessary to reprogram the key fob or even replace it entirely.
It is easy to replace the battery in a car keyfob. First, find out what kind of battery is used. The type should be engraved on the side of the fob. Google can help you if you're not sure. Once you've identified the kind of battery you want you want to use, open the key fob at the junction. Make use of a flathead screwdriver or even your fingernail, to break the two halves. Take the old battery out, and replace it with a brand new one. Then, insert the new battery so 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 don't respond. This can be fixed by reprogramming the fob. However it could be costly and time-consuming. Another option is to contact roadside assistance and ask them to jump your vehicle and get you back on the road.
If you have tried all of these options and your car still won't start then it's time for an expert. A trained technician can tell the computer in your car needs reprogramming, or if the fob simply needs a new battery. They can also recommend a reliable auto repair shop to replace your fob's key. Sometimes an entirely new fob could be the best option.
Circuit Board Damage
A key fob is able to withstand many physical abuses and is not impervious to destruction. The battery, the circuit board and buttons will all experience their fair share of wear and tear over time It is therefore essential to be on guard and take care of them to ensure that your car key fob working well.
Verify that the battery still working in your key fob. If it is, replace the battery and check if it fixes your problem. If this does not work, you may have to open the fob and clean the contact surfaces. It can be difficult to open certain key fobs since they don't have an easy release mechanism. You could cause damage to the fob by trying to break it. You can purchase a specific tool to open your key fob, but it is recommended to follow the manufacturer's instructions to avoid damaging it.
A damaged or corrupted key fob circuit board is a frequent issue. This can be due to a number of things like dirt or moisture that gets into the battery compartment, software issues or even an unintentional firmware update. If your key fob has stopped working, you may want to consider having it changed. This can be done by a locksmith that specializes in this work.
Radio interference is another possibility. This can occur if you have other wireless devices that transmit on the same frequency, for example, radar detectors or home security systems. If this is the case, consult with other manufacturers of the device to make sure that your key fob isn't affected by their signals.
It is also possible to replace a switch or other electrical component of your key fob. This is a difficult fix however, there are online guides that will show you how to fix it yourself. It is important to be cautious when doing this, as the circuit boards that are inside your key fob are tiny and are susceptible to breaking if they are handled roughly. If you're doing it yourself, make sure to use an SMT switch of good quality and put the switch in place correctly.
Buttons that are worn out
Car key fobs can suffer a lot of wear and 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. A simple adjustment can fix the problem.
Modern key fobs are fitted with sensors that are able to detect when they've been hit. This is because they reduce the possibility of someone taking your vehicle. If the buttons on your key fob don't respond when pushed it's a sign that they're worn out and need to be replaced.
Key fobs also contain an electronic circuit inside which transmits signals to your car. These signals include commands to unlock and lock your car, as well as commands to start your engine. If your internal circuit board is damaged, the key fob you have may not allow you to unlock your car or even start the engine. This type of damage is typically caused by blunt force or water.
You'll notice that the buttons on your key fob are deteriorating If you're finding yourself pressing more than normal in order to get them working. Additionally your fob could cease transmitting signals to the car, or have a lower range than it did before.
If you're unable to unlock your key fob, unlock or start your vehicle, it's crucial to find a locksmith in your area immediately. They'll be able to determine whether the key fob itself is damaged or if your ignition cylinder is worn out.

Fortunately, most key fob issues in cars aren't a major or difficult issue. Keep a spare key fob in your car at all times to avoid being shocked by a malfunctioning key. You'll never be stranded because of an unresponsive or lost key. If you have lost your spare key, a professional locksmith can rekey it to work with your car's engine. car key fob repairs near me 'll also be able to fix any internal damage that's been caused to the key fob.
Broken Case
The case of the key fob does more than just shield the batteries and buttons. The case also houses the circuitry that does all the electrical magic when you press a key fob button. The circuit board relays the signal from your keyfob to your car.
If the board is damaged or dead your key fob will not be able to function. Sometimes a dead key fob will just need to be reprogrammed which is something your local auto locksmith or dealership can assist you with.
Another reason why your key fob might not be working is that the batteries are dead. The battery can be replaced at your home. You can purchase the replacement battery from the local auto parts store or online. These batteries aren't just for key fobs.
There are many 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 the type of battery it takes. From there, you can buy a replacement and easily pop the old one out, and then the new one in.
The biggest concern when repairing a broken car key fob is that you don't want to cause damage to the circuit board or buttons further. If you attempt to pull apart the key fob using a screwdriver or other hard edge, it could break the plastic or damage the case. A replacement case isn't much and you can find a complete fob assembly including the electronic components on eBay or Amazon for under $40.
If your key fob doesn't work, check if you have damaged the circuit board or the batteries. If this is not the situation, you can get it repaired quickly and easily by a professional. Otherwise, it might be time to consider a replacement. Just be sure to check for a warranty on any replacement or used fobs you purchase on the internet.