How to Repair Car Key Fobs
Even though we put them through numerous times keys aren't impervious to destruction. In fact, they could be destroyed in a variety of ways.
While the most common issue is the battery being dead, other issues can be more serious. Fortunately, many of them can be resolved with a quick DIY fix at home.
Dead Battery
A dead battery is the most frequent cause of the key fob not functioning. Fob batteries can be drained quickly, particularly if they're exposed to extreme conditions like humidity, temperatures or even water. Keep an extra battery in your wallet in case you need it.
It is easy to tell when the battery of your car key fob is running low by the fact that the LED light will cease to glow. It's also possible that your key fob won't function from the same distance as it used to. In this case the key fob might need to be reprogrammed or replaced altogether.
Fortunately the replacement of a car key fob battery is simple. Find out the type of battery used. The type of battery should be embossed in the side of your key fob. If you're unsure then doing a quick Google search can help. Once you've found the type of battery and the key fob, you can open it near the seam. Make use of a flathead screwdriver or even your fingernail to separate the two halves. Then, you can remove the old battery and insert a new one in its place. Make sure you insert the new battery with the positive (+) side facing towards the buttons on the fob.
Some drivers don't even realize that their fob has gone out of service until they lock or unlock their vehicle and the buttons don't work anymore. This can be corrected by reprogramming the fob. However, it can be costly and time-consuming. Another option is to call roadside assistance and see if they can jump your vehicle and get you back on the road.

If you've tried every solution and your vehicle still won't start, it's time to call a professional. A trained technician can tell whether your car's computer requires reprogramming, or if the fob simply needs a new battery. They may also recommend an auto shop that will replace the fob that you use to access your car. Sometimes an entirely new fob might be the best option.
Damaged Circuit Board
Key fobs can withstand many physical abuses and is not impervious to destruction. The circuit board, battery and buttons are all susceptible to wear and wear and tear. It is essential to take care of these parts to keep your key fob in good condition.
Make sure that the battery still working on your key fob. Replace the battery to see if it fixes your issue. If this doesn't work, you might need to open the fob and clean its contact surfaces. It can be difficult to open certain key fobs due to the fact that they don't have an easy-release mechanism. You can harm your fob by trying break it. You can purchase a specific tool to open your key fob, however you must always adhere to the manufacturer's guidelines to avoid damaging it.
Another issue that is common is a damaged or corrupted circuit board in the key fob. This can be caused by many things, such as dirt or moisture getting into the battery compartment, software issues or even an unintentional firmware update. If your key fob isn't functioning, you might think about having it reprogrammed. This can be accomplished by a locksmith who is skilled in this type of work.
Radio interference is also a possibility. It could happen if are other wireless devices operating on the same frequency as your key fob, such radar detectors or 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.
You may also need to replace a switch or other electrical component inside your key fob. You can find online guides that will show you how to fix this yourself. Be cautious when doing this, however, because the circuit board that is inside the key fob is tiny and can easily break if handled with care. If you're doing this yourself, be sure to use an SMT switch that is of high-quality and then solder the switch into place correctly.
Worn Out Buttons
Car key fobs are subject to a lot wear and wear and tear. They are prone to being dropped and spend a lot of time jostled around in your pocket or purse. The jolting can cause buttons to wear out or become stuck. A simple adjustment can solve the problem.
The majority of modern key fobs have sensors on them that detect if they've been pressed. This is because they reduce the chances of someone stealing your vehicle. If the buttons on your key fob don't respond when you press them, they're damaged and should be replaced.
Key fobs also have a circuit board inside them that sends signals to the car. These signals include commands to unlock and lock your car, as well commands to start the engine. If the internal circuit board is damaged, your key fob might not unlock or start your engine. This kind of damage is typically caused by water or blunt force.
If you have to press the buttons harder than usual to get them to function If this is the case, then your fob's buttons are getting worn out. In addition the fob might stop sending a signal to the car, or have less range than it did prior to.
If you're unable to get your key fob to unlock or start your car, it's important to find a locksmith near you immediately. They'll be able to tell whether the key fob is damaged or the ignition cylinder has worn out.
Fortunately, the majority of key fob issues in cars aren't serious or complicated. Keep a spare key fob in your car at all times to avoid being thrown off by a malfunctioning key. This will ensure that you're not stuck in a bind because of a lost or malfunctioning key. If you lose 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 provides more than just protection for the battery and buttons. It also houses the circuit board responsible for all the electrical magic when you hit a button on your key fob. The circuit board relays the signal from your keyfob to your car.
If this board is damaged or dead your key fob will not be able to function. A dead key fob may only need to be reprogrammed by your local auto locksmith, or dealership.
Another reason why your key fob might not be working is that the batteries are dead. This is a simple solution that can be done at home by replacing the battery. You can find an alternative battery at your local auto parts shop or online. These batteries aren't only for key fobs.
Depending on the type of key fob, there are various ways to open it up and access the insides. You can find out what kind of battery your key fob has by doing a quick online search. From there, you can purchase a replacement and easily pop the old one out and the new one in.
The most important thing to consider when fixing an old car key fob is that you don't want to cause damage to the circuit board or buttons any further. If link web site attempt to pry off the key fob with the screwdriver or another sharp edge, it can crack the plastic or damage the case. A replacement case isn't much and you can purchase a complete fob assembly including the electronics on eBay or Amazon for under $40.
If your key fob does not function, make sure you've damaged the circuit board or the batteries. If this isn't the case, a professional can repair it for you quickly and cheaply. If not, it may be time to replace the fob. Be sure to look for a warranty on any used or replacement fobs that you purchase on the internet.