Although we test them numerous times keys aren't indestructible. They can be destroyed in various ways.
While the most common issue is a dead battery, other issues can be more grave. Most of these issues can be solved with a simple fix at home.
Dead Battery
A dead battery is likely the most frequent reason the car key fob stops functioning. Fob batteries can be drained quickly, especially when they're exposed to extreme conditions like humidity, temperatures or even water. Keep an extra battery in your wallet in case you need it.
The LED light will generally stop blinking when the battery in your car key fob is low. It's also possible that your key fob won't work from the same distance as it used to. In this case, the key fob may need to be programmed again or replaced entirely.
Fortunately replacing the battery in a car key fob is simple. First, determine what kind of battery is used. The type should be engraved on the back of the fob. If car remote key repair , doing a quick Google search will be helpful. Once you've found the type of battery you want to use, open the key fob at the junction. Make use of a flathead screwdriver or even your fingernail to pry apart the two halves. Then, remove the battery that was removed and replace it with a new one in its place. Insert the new battery so that the positive (+) face is facing the buttons on the fob.
Some drivers may not realize the fob is dead until they attempt to lock or unlock their car and the buttons don't respond. In some instances this issue can be resolved by reprogramming your fob, however, it can be costly and time-consuming. You can also contact roadside assistance to find out whether they are able to jumpstart your car and get it back on the road.
If you've tried both solutions and your vehicle still won't start, it's the right time to contact a professional. A certified technician can determine whether your car's computer requires changing its programming, or if the fob simply needs an upgrade in battery. They can also recommend an auto shop to replace the key fob. Sometimes an entirely new fob might be the best option.
Circuit Board Damage
Key fobs can withstand a lot of physical abuse and is not indestructible. The battery, circuit board and buttons will all experience their fair amount of wear and tear over time, so it's important to be aware and take care of them to keep your car key fob operating well.
Make sure that the battery still working on your key fob. If it is then replace the battery and see if that fixes your issue. If this doesn't work, you may need to open the fob and clean its contact surfaces. It isn't easy to open some key fobs because they don't have an easy release mechanism. You may cause damage to your fob by trying break it. You can purchase a specific tool to open your key fob, but it is recommended to follow the instructions of the manufacturer to avoid damaging it.
A damaged or corrupted key circuit board for the fob is another frequent issue. It can be caused by many things, including moisture or dirt getting into the battery compartment. Software issues or an unintentional firmware update may also cause this. If your key fob isn't functioning completely, you should think about having it reprogrammed by locksmiths who specialize in this type of work.
Radio interference is also a possibility. This could happen if there are other wireless devices that transmit at the same frequency as your key fob, such a radar detectors and home security systems. If this is the situation, you should contact the other device manufacturer to make sure that your key fob won't be affected by their signals.
You may also need to replace a switch or other electrical component of your key fob. There are online guides that help you fix this yourself. It is important to be cautious when doing this it is important to be careful, since the circuit boards that are inside your key fob are tiny and easily break when handled rough. If you're doing this yourself, make sure to use a high quality SMT switch and then solder it into place properly.
Buttons that are worn out
Car key fobs are prone to lots of wear and tear. They're prone to being dropped, and they often spend a lot of time jostled around in your pocket or purse. Sometimes, this can cause buttons to wear out or become stuck. If this happens it's possible that a simple adjustment will be all it takes to make it work again.
Modern key fobs come with sensors that detect when they have been hit. They're designed to do this to reduce the likelihood of someone 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 inside the key fob also sends signals to your car. These signals include commands to unlock and lock your car, and commands to start your engine. If your internal circuit board is damaged then your key fob might not be able to unlock your vehicle or start the engine. Typically, this type of damage is caused by water, blunt force or something that scratches the circuit board.
You'll be able to tell that the buttons on your key fob are deteriorating if you find yourself pressing them harder than normal to get them to work. Your fob might be unable to send a signal to your car or have a smaller range.
Contact a locksmith right away in the event that you are not able to use the key fob for your car. They'll be able to determine whether the key fob itself is damaged or the ignition cylinder is worn out.
Fortunately, most car keyfob problems aren't too difficult or serious. Keep a spare key fob in your vehicle at all times to avoid being thrown off by a malfunctioning device. This will ensure that you're not trapped in a place because of a lost or malfunctioning key. Of course, if you do happen to lose your car key spare A locksmith can reset it to ensure it is compatible with the ignition of your car. They'll also be able repair any internal damage that's occurred to the key fob.
Broken Case
A key fob's case provides more than just protection for the buttons and battery. 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. The circuit board receives the signal from your key fob and sends it to your car.
If the board is damaged or dead, your key fob won't be able to operate. Sometimes, a key fob that is dead can be reprogrammed, which is something your local auto locksmith or dealership can help you with.
Batteries could be the reason the key fob's not working. The battery can be replaced at your home. The positive side is that you can get an alternative battery online or at your local auto parts store, since these batteries are not exclusive to key fobs.
There are a variety of ways to open a key fob and get inside it, based on the type. A quick internet search should show you which type of key fob you have and what kind of battery it requires. From there, you can buy the replacement and simply take 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 damage the circuit board or buttons any further. If you try to pry off the key fob with an instrument like a screwdriver or any other sharp edge, it could crack the plastic or break the case. A replacement case isn't much and you can buy a complete fob assembly including the electronic components on eBay or Amazon for less than $40.
If your key fob won't work, you should check if you have damaged the circuit board or batteries. If this isn't the situation, you can get it repaired quickly and cheaply by a professional. If not, it might be time to replace the fob. Just be sure to check for a warranty on any replacement or used fobs that you purchase online.
