Key fobs are susceptible to damage even if we use them often. In fact, they could break down in a variety of ways.
Other issues could be more grave than an unresponsive battery. Fortunately, many of these can be fixed by a simple DIY fix at home.
Dead Battery
A dead battery is probably the most frequent reason the car key fob stop working. Fob batteries tend to drain quickly, especially if they are exposed or cold temperatures, humidity, or water. Keep an extra battery in your wallet in case you need it.
You can usually tell the moment the battery in your car key fob is running low because the LED light will stop glowing. It's also possible that the fob won't function from the same distance it did in the past. In this scenario, the key fob may need to be programmed again or replaced completely.
It is easy to replace the car keyfob battery. First, find out what kind of battery is being used. The type of battery should be engraved on the side of the fob. If you are not sure, a quick Google search will help. The key fob can be opened along the seam after you have identified the battery type. Utilize a flathead screwdriver or even your fingernail to separate the two halves. Then, remove the old battery and put an alternative one in its place. Make sure to insert the new battery with the positive (+) side facing towards the buttons on the fob.
Some drivers may not realize their fob is dead until they try to lock or unlock their car and the buttons don't respond. This can be fixed by reprogramming your fob. However, it can be time-consuming and expensive. Another option is to contact roadside assistance and see if they are able to jump your vehicle and get you back on the road.
If you have tried both of these solutions but your car won't start, then it's time for a professional. A certified technician can determine if your car's computer system needs to be reprogrammed or the fob simply requires a new battery. They will also suggest a reputable auto repair shop to replace your fob's keys. Sometimes, however, a new fob might be the best option.
Damaged Circuit Board
The key fob isn't indestructible, but it is able to endure a lot of physical damage. The battery, the circuit board buttons, and other components all suffer their fair share of wear and tear with time and it's crucial to be aware and take care of them in order to keep your car key fob working efficiently.
The easiest thing to check is to make sure the battery in the key fob isn't dying. Replace the battery to see if it solves the issue. If this does not work, you may have to open the fob and clean its contact surfaces. It is sometimes difficult to open certain key fobs because they don't have an easy-release mechanism. You may damage the fob by trying to force it apart. You can purchase a special tool to open your key fob, but it is recommended to follow the manufacturer's instructions to avoid damaging it.
A damaged or damaged key fob circuit board is a frequent issue. It can be caused by various factors, including moisture or dirt getting into the battery compartment. Issues with software or an accidental firmware update can be the cause of this. If your key fob has stopped functioning completely, you should think about having it reprogrammed by locksmiths who specialize in this type of work.
Radio interference is another possibility. This can happen if there are other wireless devices operating on the same frequency your key fob, for instance a radar detectors and home security systems. If this is the situation you need to contact the manufacturer of the other device to ensure that your key fob will not be affected by their signals.
It's also possible that your key fob is equipped with a bad switch or other electrical component that must be replaced. This is a more difficult fix however, there are guides online that explain how to do it yourself. Be cautious when doing this, however, because the circuit board that is inside your key fob is very small and is prone to breaking if handled with care. If you're doing this yourself, be sure to make use of an SMT switch that is of high-quality and put the switch in place in a proper manner.
Worn Out Buttons
Car key fobs can get lots of wear and tear. They are susceptible to being dropped and spend a lot of time being jostled in your purse or pocket. Sometimes, this jolting can cause the buttons to become worn out or snagged. A simple adjustment can fix the issue.
Most modern key fobs have sensors on them that can detect if they've been pressed. They're made to do this to decrease the chance of thieves stealing your car. If the buttons on your key fob aren't responding when pressed, they are worn out and need to be replaced.
The circuit board in the key fob also transmits signals to your car. The signals include unlock and lock commands and instructions to start your engine. If your internal circuit board is damaged, your key fob may not unlock your vehicle or start the engine. Most of the time, this kind of damage is caused by water, force blunt or something that scratches the circuit board.
If you're forced to press the buttons more than usual in order to activate them, then your fob's buttons are wearing out. In addition, your fob may stop sending a signal to the car or it'll have less range than before.
Contact a locksmith immediately in the event that you are not able to use your key fob for your vehicle. They can determine if the key fob is damaged or if the cylinder in your ignition is worn out.
Luckily, most car key fob issues aren't serious or complicated. The best way to ensure you don't get taken by surprise by an unresponsive key fob is to have an extra key in your possession at all times. This will ensure that you're never trapped in a place because of the loss or malfunction of your key. If you have lost your spare key, a professional locksmith can rekey it to work with your vehicle's engine. They'll also be able fix any internal damage that may have occurred on the key fob.
Broken Case
The case of a key fob does more than just shield the batteries and buttons. It also houses the circuit board that is responsible for doing all of the electrical magic when you hit the button on your key fob. This board transmits the signal from your keyfob to your car.
If the board is damaged or dead the key fob won't be able to function. A dead key fob might only need to be reprogrammed by a local auto locksmith, or dealership.
Batteries could be the cause your key fob's battery not working. car keys repair is a quick fix that you can do at home by replacing the battery. You can find a replacement battery at the local auto parts store or on the internet. These batteries aren't only for key fobs.
Depending on the kind of key fob, there are a variety of ways to open it up and gain access to the inside. You can find out what type of battery your key fob has by conducting a quick internet search. You can then buy a new replacement and pop the old one out, and put the new one into.
The biggest concern when repairing an old car key fob is that you don't want to damage the circuit board or buttons further. Trying to pry apart a key fob with a hard edge like a screwdriver could damage the case or even damage the plastic. A replacement case isn't much and you can buy an entire fob, including the electronics on eBay or Amazon for under $40.
If your key fob won't work, check if you have damaged the circuit board or the batteries. If this isn't the situation, you can get it repaired quickly and cheaply by a professional. Otherwise, it might be the time to purchase an upgrade. Just be sure to check for a warranty on any used or replacement fobs you buy on the internet.
