How to Repair Car Key Fobs
Although we put them through a lot keys aren't impervious to destruction. They can actually be destroyed in various ways.
Other issues could be more important than an unresponsive battery. Luckily, most of them can be resolved by making a quick DIY fix at home.
Dead Battery
A dead battery is likely the most common reason a car key fob stops functioning. Fob batteries tend to drain quickly, especially when they are exposed to hot or cold temperatures, humidity, or water. Keep an extra battery in your wallet in case you need it.
You will usually know when the battery in your car key fob is depleted because the light on the LED will cease to glow. It is also possible that the fob won't work at the same distance it did in the past. In this instance the key fob could need to be programmed again or replaced altogether.
It is simple to replace a car keyfob battery. Find out the kind of battery used. The type should be embossed on the back of the fob. If you're unsure it is, an easy Google search will help. Once you've identified the battery type you want to use, open the key fob at the junction. Utilize a flathead screwdriver or your fingernail to separate the two halves. Remove the old battery, and replace it with a new one. Insert the new battery so that the positive (+) face is facing the buttons on the fob.
Some drivers don't realize that their fob has died until they lock or unlock their vehicle and the buttons stop working. In some cases this problem can be resolved by reprogramming the fob, but that can be costly and time-consuming. Another option is to contact roadside assistance and see if they can jump your vehicle and get you back on the road.
If you've tried both solutions and your vehicle still won't start, it's time to call an expert. A qualified technician can determine whether your car's computer requires reprogramming, or if the fob only requires replacement batteries. They will also suggest a reputable auto repair shop to replace your fob's keys. In the end sometimes, a brand new fob is the best solution.
Circuit Board Damage
Key fobs aren't indestructible, but it can endure a lot of physical harm. The battery, the circuit board and buttons will all experience their fair share of wear and tear over time, so it's important to be vigilant and take care of them in order to keep your car key fob working well.
Verify that the battery still functioning on your key fob. Replace the battery to see if it fixes your problem. If not, you may need to open the key fob and clean the contact surfaces. This can be tricky since some key fobs don't have easy-release mechanisms to open them and you could harm your device if you attempt to break it. You can buy a special tool to open your key fob, however you should always follow the instructions of the manufacturer to avoid damaging it.
Another issue that is common is a damaged or damaged circuit board on the key fob. This could be due to various factors, including dirt or moisture entering the battery compartment. Issues with software or an accident firmware update could be the cause for this. If your key fob has stopped working completely, consider having it reprogrammed by an expert locksmith who specializes in this type of work.
Radio interference is another possibility. This can happen if there are other wireless devices that transmit on the same frequency as your key fob, such a radar detectors and home security systems. If this is the case, you should consult with other manufacturers of your device to ensure that your key fob isn't being affected by their signals.
It's also possible that your key fob has a bad switch or other electrical component that must be replaced. This is a difficult fix however, you can find guides online that show you how to fix it yourself. It is important to be cautious when doing this, as the circuit boards in your key fob are tiny and are susceptible to breaking when handled rough. If you're doing it yourself, make sure to make use of an SMT switch of good quality and solder the switch in place correctly.
Buttons that are worn out
Car key fobs are prone to quite a bit of wear and wear and tear. They are more prone to being dropped and spend a lot time being tossed around in your purse or pocket. Sometimes, this can cause the buttons to wear out or snagged. Simple adjustments can resolve the issue.
Most modern key fobs have sensors that detect when they've been used. This is due to the fact that they decrease the possibility of someone taking your vehicle. If the buttons on your key fob aren't responding when you press them, they're worn out and need to be replaced.

Key fobs also contain an electronic circuit inside that sends signals to the car. These signals include commands to unlock and lock your car, and commands to start your engine. If the circuit board within your vehicle is damaged, then your key fob may not unlock or start your engine. This type of damage is usually caused by water or blunt force.
You'll be able to tell that the buttons on your key fob are deteriorating when you press the buttons more than usual to get them to function. Your fob might not be sending an alert to your car or have a smaller range.
Contact a locksmith immediately in the event that you are unable to use your key fob to start your vehicle. They'll be able to determine whether the key fob is damaged or if your ignition cylinder is worn out.
Fortunately, most key fobs for cars problems aren't complicated or serious. The best way to avoid being 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 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 ensure it is compatible with your car's ignition. key repair near me 'll also be able to fix any internal damage that's been caused to the key fob.
Broken Case
The case of the key fob does more than just shield the buttons and batteries. It also houses the circuit board responsible for doing all of the electrical magic when you press the button on your key fob. The circuit board receives the signal from your key fob and transmits it to your car.
The key fob won't work if this board is damaged. A dead key fob may only need to be reprogrammed by a local auto locksmith or dealer.
Another reason why your key fob might not be functioning is that the batteries are dying. This is a quick fix that can be accomplished at home by replacing the battery. You can find the replacement battery from the local auto parts store or online. These batteries are not just for key fobs.
Depending on the type of key fob, there are different ways to open it up and gain access to the inside. You can find out what type of battery your key fob is using by conducting a quick online search. From there, you can buy a replacement and easily pop the old one out and put the new one in.
The main concern when you repair the broken car key fob is that you don't want to damage the circuit board or buttons any further. If you attempt to remove the key fob using an edge that is sharp like screwdrivers can damage the case or even damage the plastic. A replacement case isn't expensive and you can find an entire fob, including the electronics on eBay or Amazon for less than $40.
If your key fob doesn't work, check if you've damaged the circuit board or batteries. If that's not the case, a professional can repair it for you quickly and cost-effectively. Otherwise, it might be time to invest in an upgrade. Make sure to verify the warranty on any replacement or used fobs purchased online.