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.
While the most common issue is an unresponsive battery however, other issues could be much more grave. Many of these issues can be resolved with a simple fix at home.
Dead Battery
A dead battery is probably the most common reason why a car key fob stops functioning. Fob batteries are known to drain quickly, especially when they are exposed or cold temperatures, humidity, or water. Keep an extra battery in your wallet in case you require it.

You can usually tell when your car key fob's battery is depleted because the LED light will cease to blink. The key fob could also stop working at the same distance that it used to. In this instance it might be necessary to re-program your key fob or replace it altogether.
Fortunately replacing the battery in a car key fob is a simple task. First, find out what type of battery is used. The type of battery should be stamped on the back of your key fob. If you are not sure it is, a quick Google search will be helpful. Once you have found the battery type you want to use, open the key fob at the junction. You'll need small flathead screwdrivers or even your fingernail to split the two halves. Then, remove the old battery and insert the new one in its place. Make sure you insert the new battery with the positive (+) side facing towards the buttons in the fob.
Some drivers may not realize their fob is dead until they try to lock or unlock their vehicle and the buttons do not respond. This can be corrected by reprogramming the fob. However, it can be time-consuming and expensive. Another option is to contact roadside assistance and see if they can jump your car and get you back on the road.
If you've tried all the options and your vehicle still won't start, it's the right time to speak with a professional. A qualified technician will be able to determine if the car's computer system needs to be reprogrammed or if the fob needs an upgrade in battery. They will also suggest a reputable auto shop to replace your key fob. Sometimes, however, a new fob might be the best option.
Damaged Circuit Board
Key fobs can withstand some physical abuse and is not impervious to destruction. 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 aware and take care of them to keep your car key fob working efficiently.
Check that the battery is still functioning on your key fob. If it is then replace the battery and determine if this fixes the issue. If not, you may need to open the key fob and clean the contact surfaces. It can be difficult to open some key fobs due to the fact that they don't have an easy-release mechanism. You could damage your fob by trying take it apart. You can purchase a special tool for opening your key fob. However, you should follow the directions of the manufacturer to avoid damaging it.
Another common problem is a damaged or damaged circuit board inside the key fob. This can be caused by many things like dirt or moisture getting into the battery compartment, software issues, or even an accidental firmware update. 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, such radar detectors, home security systems. If this is the case, you should consult with other manufacturers of the device to ensure that your key fob's signal isn't affected by their signals.
There may be redirected here to replace a switch or an electrical component inside your key fob. There are online guides that will help you fix this yourself. Be careful to be careful, however, since the circuit board that is inside your key fob is small and is prone to breaking if handled roughly. If you're doing this yourself, make certain to use a top quality SMT switch and solder it into place properly.
In a state of wear Out Buttons
Car key fobs are prone to quite a bit of wear and tear. They're susceptible to being dropped and spend a lot of time jostled around in your purse or pocket. Sometimes, this jolting can cause buttons to wear out or snagged. car key fob repair can resolve the problem.
Modern key fobs come with sensors that are able to detect when they have been hit. This is due to the fact that they decrease the chances of someone stealing your vehicle. If the buttons on your key fob aren't responding when you press them this is a sign that they're worn out and require to be replaced.
Key fobs also contain a circuit board inside them that sends signals to the car. These signals include unlock and lock commands and instructions to start your engine. If the circuit board within your vehicle is damaged, your key fob may not allow you to unlock or start your engine. Generally, this kind of damage is caused by water, force blunt, or something scratching the circuit board.
If you're forced to press the buttons harder than normal to get them to function If this is the case, then your key fob buttons are wearing out. Your fob could not be sending signals to your vehicle or have a shorter range.
Contact a locksmith right away if you are not able to use your key fob for your vehicle. They'll be able determine whether the key fob itself is damaged or the ignition cylinder has worn out.
Luckily, most car key fob problems aren't serious or complicated. Keep an extra key fob in your car always in case you end up being surprised by a malfunctioning key. This will ensure that you're not left stranded somewhere because of the loss or malfunction of your key. If you lose your spare key a professional locksmith can reset it to work with your vehicle's engine. They can also fix any internal damage to your key fob.
Broken Case
The case of the key fob does more than just protect the buttons and batteries. It also houses the circuit board that is responsible for performing all the electrical magic when you press a button on your key fob. The circuit board relays the signal from your key fob to your car.
If the board is damaged or dead your key fob will not be able to function. Sometimes, a key fob that is dead will just need to be reprogrammed, which is something that your local auto locksmith or the dealership can assist you with.
Another reason why your key fob might not be working is that the batteries are dead. This is a quick fix that you can do at home by replacing the battery. The good news is that you can find an alternative battery on the internet or at a local auto parts shop since these batteries are not exclusive to key fobs.
There are a variety of ways to open a key fob to get inside it, depending on the type. A quick search online should reveal what kind of key fob you have and what kind of battery it takes. From there, you can buy a replacement and easily pop the old one out and put the new one in.
The biggest concern when repairing an old car key fob is that you don't want to harm the circuit board or buttons further. When you try to break a key fob with a hard edge like a screwdriver can break the case or damage the plastic. A replacement case isn't expensive and you can purchase a complete fob assembly including the electronics on eBay or Amazon for less than $40.
If your key fob doesn't work, you should check if you have damaged the circuit board or batteries. If this isn't the case, a professional can repair it quickly and cheaply. If not, it could be time to invest in an upgrade. Make sure you check the warranty on any fob replacement or used purchased online.