How to Repair Car Key Fobs
Key fobs are susceptible to damage, even if we use them frequently. They can break down in different ways.
While the most common issue is a dead battery however, other issues could be much more serious. Luckily, most of them can be resolved with a quick DIY fix at home.
Dead Battery
A dead battery is probably the most common reason why the car key fob stops functioning. Fob batteries are prone to draining quickly, especially when they're exposed to extreme conditions like humidity, temperatures or even water. It's a good idea keep an additional fob battery in your wallet in case.
You will usually know that the battery of your car key fob is depleted 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 it did in the past. In this case, it may be necessary to reprogram the key fob or replace it altogether.
It is easy to replace the car keyfob battery. Find out the kind of battery used. The type of battery should be embossed in the back of your key fob. If you are not sure it is, doing a quick Google search can help. Once you've found the kind of battery you want you want to use, open the key fob near the seam. Use a flathead screwdriver, or even your fingernail, to break the two halves. Remove the old battery and replace it with a brand new one. Insert the new battery so that the positive (+) face is facing the buttons on the fob.
Some drivers aren't aware that their fob has died until they lock or unlock their car, and the buttons don't work anymore. In some cases, this can be solved by reprogramming your fob, but that can be costly and time-consuming. 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 both solutions and your car still doesn't start, it's time to speak with a professional. A qualified technician can determine if your vehicle's computer system requires reprogramming or the fob simply requires an upgrade in battery. They can also suggest an auto shop that will replace your key fob. Sometimes an entirely new fob could be the best option.
Circuit Board Damage

The key fob isn't impervious to destruction, but it can withstand a lot of physical harm. The battery, circuit board and buttons are all susceptible to wear and wear and tear. It is crucial to take care of these parts to keep your key fob in good working order.
Verify that the battery still working on your key fob. If it is then replace the battery and check if it fixes your issue. If not, you may have to remove the key fob and clean the contact surfaces. This can be a challenge since some key fobs do not have a release mechanism that is easy to open them and you may harm your device if you try to force it apart. You can buy a tool to open your key fob. However, you must always follow the instructions of the manufacturer to avoid damaging the.
A damaged or corrupted key fob circuit board is another common problem. This can be due to various factors, such as dirt or moisture getting into the battery compartment software problems or even an unintentional firmware update. If your key fob isn't functioning, you might want to consider getting it replaced. This can be done by a locksmith who specializes in this work.
Radio interference is another possibility. It could happen if are other wireless devices transmitting on the same frequency your key fob, like radar detectors, home security systems. If this is the situation you must contact the other device manufacturer to make sure that your key fob will not be affected by their signals.
It is also possible to replace a switch or another electrical component inside your key fob. This is a difficult fix however, there are online guides that will show you how to do it yourself. Be cautious when doing this, however, because the circuit board in the key fob is tiny and is prone to breaking if handled with care. If you're doing it yourself, be sure to make use of an SMT switch that is of high-quality and solder the switch in place in a proper manner.
Buttons that are worn out
Car key fobs are subject to a lot of wear and tear. They're susceptible to being dropped, and they often are frequently moving around in your purse or pocket. car key repair near me jolting can cause buttons to wear out or become stuck. When this happens an easy adjustment could be all it takes to get it working again.
Modern key fobs come with sensors that detect when they've been hit. They're made to do this so that they can lower the risk of theft by someone else of your vehicle. If the buttons on your key fob don't respond when pushed this is a sign that they're worn out and need to be replaced.
Key fobs also contain a circuit board inside them that transmits signals to the car. Those signals include unlock and lock commands and also commands to start your engine. If the internal circuit board is damaged, your key fob will not allow you to unlock or start your engine. This kind of damage is typically caused by water or blunt force.
If you're forced to press the buttons harder than usual in order to get them to function the key fob buttons are wearing out. The fob may be unable to send an alert to your vehicle or have a shorter range.
If you're unable unlock your key fob, unlock or start your vehicle, it's crucial to contact a locksmith in your area immediately. They can determine if the key fob is damaged, or if the cylinder of your ignition is worn out.
Fortunately, most car keyfob problems aren't too difficult or serious. The best way to avoid getting caught off guard by an unresponsive key fob is to have a spare in your possession at all times. This will ensure that you're never trapped in a place due to an unreliable or lost key. Of course, if you do lose your spare car key, a locksmith will be able to change the key to work with the ignition of your car. They'll also be able to fix any internal damage that's occurred to the key fob.
Broken Case
The case of the key fob is more than just protect the buttons and batteries. The case also houses the circuitry that does all the electrical magic when you press a key fob button. This board transmits the signal from your keyfob to your car.
If this board is damaged or dead your key fob will not be able to operate. Sometimes a dead key fob will just need to be reset which is something your local auto locksmith or the dealership can help you with.
Batteries could be the reason your key fob's battery not working. The battery can be replaced at home. You can find the replacement battery from your local auto parts shop or on the internet. These batteries are not only intended for key fobs.
There are many ways to open up a key fob to get inside it, based on the type. A quick search on the internet will identify the type of key fob you have and the type of battery it requires. From there, you can buy a replacement and easily pop the old one out and put the new one in.
When repairing a broken key fob, the main concern is not to damage the circuit or buttons more. Trying to pry apart the fob using a hard edge like a screwdriver could damage the case or even crack the plastic. Luckily, a replacement case is cheap and you can buy the entire fob and the electronic components from eBay or Amazon for less than $40.
If your key fob does not function, make sure you have damaged the circuit board or the batteries. If this isn't the case, a professional can repair it for you quickly and cheaply. In the event that it isn't, it's time to invest in a replacement. Make sure you check the warranty on any fob replacement or used that you purchase online.