How to Repair Car Key Fobs
Although we test them numerous times keys are not indestructible. They are able to break down in different ways.
While the most common problem is a dead battery but other issues can be more grave. Fortunately, the majority of these issues can be solved by a simple DIY fix at home.
Dead Battery
A dead battery is probably the most common reason the car key fob stop functioning. Fob batteries can deplete quickly, especially if they are exposed or humid temperatures or water. It's a good idea keep an extra fob battery in your wallet in case.
You can usually tell that the battery in your car key fob is dying because the LED light will cease to glow. It's also possible that the fob won't work from the same distance it did in the past. In this instance it might be necessary to re-program the key fob or replace it completely.
It is easy to replace a car keyfob battery. Find out the kind of battery used. The type should be engraved on the back of the fob. Google can assist you when you're not sure. The key fob can be opened along the seam after you have identified the type of battery. You will need to use small flathead screwdrivers or even your fingernail to pry the two halves apart. Then, take out the battery that was removed and replace it with an alternative one in its place. Be sure to insert the new battery with the positive (+) side facing upwards towards the buttons on the fob.
Some drivers may not be aware their fob is dead until they attempt to lock or unlock their car and the buttons aren't responding. In some cases, this can be solved by reprogramming the fob but that can be costly and time-consuming. You can also call roadside assistance to determine if they are able to start 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 the right time to contact an expert. A qualified technician can determine if your car's computer needs reconfiguring, or if your key fob only requires replacement batteries. They can also recommend a reputable auto repair shop to replace your key fob. In the end, though, sometimes a brand new fob is the best solution.
Damaged Circuit Board
A key fob can take a lot of physical abuse and is not indestructible. The battery, circuit board and buttons will all experience their fair share 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 functioning efficiently.
The easiest way to test is to make sure the battery in the key fob isn't dying. Replace the battery to determine if it resolves your problem. If not, you'll need to open the key fob and clean the contact surfaces. It is sometimes difficult to open some key fobs because they do not have an easy-release mechanism. You can 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 instructions of the manufacturer to avoid damaging it.
Another common problem is a damaged or corrupted circuit board on the key fob. It can be caused by many things, including dirt or moisture getting into the battery compartment. Issues with software or an accidental firmware update can be the cause for this. If your key fob has stopped working completely, you should think about having it reprogrammed by locksmiths who specialize in this type of work.
Radio interference is another possibility. It could happen when you have other wireless devices that transmit on the same frequency, like radar detectors or home security systems. If this is the case you need to get in touch with the manufacturer of the other device to ensure that your key fob will not be affected by their signals.

There may be a need to replace a switch or other electrical component of your key fob. This is a harder fix however, you can find guides online that explain how to do it yourself. It's important to be careful when you do this, as the circuit boards in the key fob are tiny and can break easily when handled rough. If you do this yourself, make certain to use a top quality SMT switch and then solder it in place correctly.
Worn Out Buttons
Car key fobs are prone to quite a bit of wear and wear and tear. They are susceptible to being dropped and spend a lot time being tossed around in your purse or pocket. The constant jostling can cause buttons to wear out or get stuck. In this case an easy adjustment could be all it takes to restore the button's functionality.
Modern key fobs are fitted with sensors that are able to detect when they have been hit. They're designed to detect this to decrease the chance of someone stealing your car. If the buttons on your key fob don't respond when pressed, they are worn out and need to be replaced.
The circuit board that is in the key fob also sends signals to your car. Those signals include commands to unlock and lock and also commands to start your engine. If the circuit board inside is damaged, your key fob may not unlock or start your engine. key fob repairs near me 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 the buttons more than normal in order to get them working. The fob may be unable to send signals to your car or have a smaller range.
Contact a locksmith right away when you're unable to use your key fob to access your vehicle. They'll be able to determine whether the key fob itself is damaged or the ignition cylinder has worn down.
Fortunately, most car key fob issues 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. You'll never be stranded due to an unresponsive or lost key. If you have lost your spare key, a professional locksmith can reset 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 is more than just a place to store the buttons and battery. It also houses the circuit board that is responsible for doing all of the electrical magic when you press a button on your key fob. The circuit board relays the signal from your keyfob to your car.
The key fob won't work if this board is damaged. A key fob that is dead may require reprogramming by a local auto locksmith, or dealership.
Another reason your key fob may not be working is because the batteries are dying. The battery can be replaced at home. You can purchase the replacement battery from the local auto parts store or online. These batteries are not just for key fobs.
There are a variety of ways to open up a key fob to get inside it, depending on the kind. You can find out what kind of battery your key fob has by conducting a quick internet search. From there, you can purchase the replacement and simply take the old one out and the new one in.
When repairing a broken key fob, the primary concern is not to destroy the circuit or buttons further. When you try to break the fob using a sharp edge, such as a screwdriver could cause damage to the case or scratch the plastic. A replacement case isn't expensive and you can find an entire fob, including the electronics on eBay or Amazon for under $40.
So, if your key fob isn't functioning look into whether the batteries are dead or if the circuit board has been damaged. If this isn't the case, a professional can fix it quickly and cost-effectively. In the event that it isn't, it's time to consider a replacement. Be sure to look for a warranty on any replacement or used fobs you purchase online.